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Private key - Bitcoin Wiki
Are bitcoin-qt encrypted wallet private keys BIP38 enabled?
Does an encrypted bitcoin-qt wallet generates BIP38 private keys? I saw that bitcoin private keys starting with 5, i.e. unencrypted / no-BIP38 PKs, can be imported on several bitcoin wallets, e.g. blockchain.info, electrum, etc., and everyone with access to these unencrypted PKs can spent the bitcoins associated to them without entering a password to validate the transaction. While BIP38's private keys, i.e. those starting with 6, can be imported on several bitcoin wallets, but they ask the associated password in order to move the coins associated with them. So let's say that someone guess my bitcoin-qt's encrypted private key, and he import it on blockchain.info or electrum. Does he will need to enter my password to spent the coins associated to my PK? in other others, does my encrypted bitcoin-qt private keys works like any BIP38 PK? Thanks
Is it possible to encrypt user private keys in OpenBazaar installation the same way Bitcoin-QT encrypts bitcoin.dat, so that even if someone access filesystem there would be nothing to hack
OpenBazaar-Client downloads "wallet.dat" equivalent from OpenBazaar-Server. On the OpenBazaar-Client side this "wallet.dat" kind of file is getting decrypted only if user enters correct decryption password.
After correct password entry and "Wallet.dat" extraction OpenBazaar-Client private key is used on client side only to sign a necessary transaction, this way private key is never transferred in open way on the TCP/IP network.
So is there any way to do this? Also I still can't understand how multisignatures work? Where client stores his part of private key? Where moderator stores his part of private key? Where seller stores is part of private key? My point is - how about creating such easy instruction for user, which says "If your computer with your OpenBazaar-Client is protected and got no viruses, then you've got nothing to worry about with your server side, no matter who hosting that thing for you" What is the difference between storing private keys for direct Bitcoin address and storing private keys for multisig addresses in OpenBazaar?
Bitcoin is a decentralized system, any user of which could control the movement of their own funds. You can use the currency to make transactions, pay for purchases, receive transfers, and exchange it for cash. For transactions, a special address is used, encrypted with a 16-character key. The buyer decodes the code to transfer bitcoins to the specified address.
Mining is a process that ensures the security of the BTC system, which adds new blocks to the blockchain in chronological order (new transactions). Blocks are added when the codes are decrypted, the transaction is completed, and bitcoins are transferred or exchanged. The main cryptocurrency is generated by miners using software that solves cryptographic problems. The reward for a new block is agreed by all network participants, but usually amounts to 12.5 bitcoins. Part of the user fees for transactions also goes to reward the miners. Cryptographic tasks become more complex every year to prevent inflation (mining complexity).
Features of the transaction
Anonymity. The address that Bitcoin is sent to consists of 30 characters. You can track the flow of transactions, but the address is not always associated with a real person.
Security. The balance of bitcoins is fixed in a cryptographic system with a public key. Only the owner of a private key can send cryptocurrency to other addresses.
Unable to cancel. It is no longer possible to cancel the transaction after the transaction has been completed.
Deregulation. Everyone can use cryptocurrency.
Coverage and speed. Information about the transaction is transmitted incredibly quickly, and confirmation is received within a few minutes. No one knows the buyer’s physical location.
Where to buy Bitcoin?
There are Deposit systems that use crypto-exchanges. So, to buy Bitcoin, you will first need to top up your balance, buy the digital currency itself, and then withdraw it to your Bitcoin wallet, paying a Commission for withdrawing coins. The cheapest method of buying is buying on the stock exchange. The exchange rate is as close as possible to the market rate.
The current exchange rate of the coin is calculated based on the average price on the largest currency exchanges. For example, you can track the exchange rate on our Bitniex exchange. The Bitcoin exchange rate is constantly changing, during the day it can change by 10% in one direction or another.
The choice of crypto-currency wallet
A cryptocurrency wallet is a place where digital currency will be stored. The most secure method of storage is using paper or electronic wallets.
TOP secure cryptocurrency wallets
These wallets are one of the most secure crypto wallets in the world:
Okay so I know this question is highly subjective which is why I’m asking it in the first place. There’s tons of different kinds of Bitcoin wallets out there and I’m curious as to what everyone here is generally using. So to re-phrase the question; in your personal opinion, what would you consider to be the best Bitcoin wallet and why? What do you think the best Bitcoin wallet for newbies is? There’s tons of newbies here (including myself) and being able to read through the community’s responses is highly beneficial to newcomers. Thoughts?
I want to remove my BTC from an online exchange... where to?
Title says it all really - not overly happy with them sitting on a server somewhere with all the recent legislation about centralised exchanges. Where can I move them where I don't have toworry about any of this? Cheers!
350 bitcoins, encrypted wallet.dat deleted - lost forever?
I know I am insanely stupid. There is no need to be upset and yell that at me through the screen. I am happy to not be a gun owner because tonight I would have killed myself. I am posting this because countless others have posted similar stories whereby they learned important lessons the hard way due to lack of technical knowledge. In my case, the reason for this lack of knowledge was likely, ironically, the same reason I bought some bitcoins: drugs. I won't get into that. What I will post is where I went wrong, and where I'm at now. Here's the full story: I had a securely encrypted wallet.dat with about 400 bitcoins on it that were purchased back at $10 or so. I pulled said wallet out of cold storage recently to cash money out of this wallet a few times to get some gift cards from gyft.com. I missed something ABSOLUTELY CRITICAL in my understanding of encrypted wallets. When you send money, your wallet.dat file changes. You ABSOLUTELY MUST make new backups before deleting this file. Please don't do what I did and simply disregard this file after making changes on the blockchain...and then, on the same PC (sigh) proceed to reinstall StarCraft II when it fails to run due to Virtu MVP being retarded, ruining any shot at recovery (NONO #2: NEVER run bitcoin on your primary machine FOR ANY REASON). I was a fool. Now I'm staring at TestDisk and File Manager in Parted Magic (linux boot disc) in total, absolute disbelief. Unless my data is stored within ".sst" files (never worked with these before and I can't figure out what they are with google, though it looks like fucking chrome shit because I leave it open all the time), which it may be, I don't know what to do. Maybe I'll try GetDataBack NTFS next. Maybe I can actually read filenames proper more effectively there? Does anyone have experience with this? I have turned off the main PC and booted it up into parted magic so there is no data being written to the drive anymore. If there is ANY shot at this wallet.dat being recovered I am not screwing myself over any more now. If anyone helps me out with this, I will compensate you generously. I am scared and lost. I never deserved bitcoin to begin with. If I can't get them back...well...enjoy the value appreciation, I guess, everyone. =( Such shame I have never felt; such guilt I may never feel again. I have tried my old wallet.dat files repeatedly before coming to the realization that encrypted wallets change with each and every transaction...and the one backup I thought I made (moved, not copied) says it is corrupt. It's easy to pretend what this feels like, but it's much worse in person. Educate yourselves and split up your wallets - now. Don't let this happen to you. If anyone is a kind soul and willing to help, feel free to PM me. EDIT: I just recovered everything with an old wallet.dat. Tonight I went full tard. Luckily, this was a throwaway. I will never forget this...all of you came together to help, to suggest, to fucking CARE. I WILL NOW TAKE TOMORROW OFF (sick day since I still feel sick as hell) TO FIX MY OTHER ISSUES WITH THE WALLET (aka putting all my eggs in one basket, keeping on a machine that is not specifically fucking made only for bitcoin, not using electrum/armory, not having my primary storage machine OFFLINE, etc.) All of you - ALL of you - are less selfish and less stupid than me. You should all feel amazing.
Dear Groestlers, it goes without saying that 2020 has been a difficult time for millions of people worldwide. The groestlcoin team would like to take this opportunity to wish everyone our best to everyone coping with the direct and indirect effects of COVID-19. Let it bring out the best in us all and show that collectively, we can conquer anything. The centralised banks and our national governments are facing unprecedented times with interest rates worldwide dropping to record lows in places. Rest assured that this can only strengthen the fundamentals of all decentralised cryptocurrencies and the vision that was seeded with Satoshi's Bitcoin whitepaper over 10 years ago. Despite everything that has been thrown at us this year, the show must go on and the team will still progress and advance to continue the momentum that we have developed over the past 6 years. In addition to this, we'd like to remind you all that this is Groestlcoin's 6th Birthday release! In terms of price there have been some crazy highs and lows over the years (with highs of around $2.60 and lows of $0.000077!), but in terms of value– Groestlcoin just keeps getting more valuable! In these uncertain times, one thing remains clear – Groestlcoin will keep going and keep innovating regardless. On with what has been worked on and completed over the past few months.
UPDATED - Groestlcoin Core 2.18.2
This is a major release of Groestlcoin Core with many protocol level improvements and code optimizations, featuring the technical equivalent of Bitcoin v0.18.2 but with Groestlcoin-specific patches. On a general level, most of what is new is a new 'Groestlcoin-wallet' tool which is now distributed alongside Groestlcoin Core's other executables. NOTE: The 'Account' API has been removed from this version which was typically used in some tip bots. Please ensure you check the release notes from 2.17.2 for details on replacing this functionality.
Builds are now done through Gitian
Calls to getblocktemplate will fail if the segwit rule is not specified. Calling getblocktemplate without segwit specified is almost certainly a misconfiguration since doing so results in lower rewards for the miner. Failed calls will produce an error message describing how to enable the segwit rule.
A warning is printed if an unrecognized section name is used in the configuration file. Recognized sections are [test], [main], and [regtest].
Four new options are available for configuring the maximum number of messages that ZMQ will queue in memory (the "high water mark") before dropping additional messages. The default value is 1,000, the same as was used for previous releases.
The rpcallowip option can no longer be used to automatically listen on all network interfaces. Instead, the rpcbind parameter must be used to specify the IP addresses to listen on. Listening for RPC commands over a public network connection is insecure and should be disabled, so a warning is now printed if a user selects such a configuration. If you need to expose RPC in order to use a tool like Docker, ensure you only bind RPC to your localhost, e.g. docker run [...] -p 127.0.0.1:1441:1441 (this is an extra :1441 over the normal Docker port specification).
The rpcpassword option now causes a startup error if the password set in the configuration file contains a hash character (#), as it's ambiguous whether the hash character is meant for the password or as a comment.
The whitelistforcerelay option is used to relay transactions from whitelisted peers even when not accepted to the mempool. This option now defaults to being off, so that changes in policy and disconnect/ban behavior will not cause a node that is whitelisting another to be dropped by peers.
A new short about the JSON-RPC interface describes cases where the results of anRPC might contain inconsistencies between data sourced from differentsubsystems, such as wallet state and mempool state.
A new document introduces Groestlcoin Core's BIP174 interface, which is used to allow multiple programs to collaboratively work to create, sign, and broadcast new transactions. This is useful for offline (cold storage) wallets, multisig wallets, coinjoin implementations, and many other cases where two or more programs need to interact to generate a complete transaction.
The output script descriptor (https://github.com/groestlcoin/groestlcoin/blob/mastedoc/descriptors.md) documentation has been updated with information about new features in this still-developing language for describing the output scripts that a wallet or other program wants to receive notifications for, such as which addresses it wants to know received payments. The language is currently used in multiple new and updated RPCs described in these release notes and is expected to be adapted to other RPCs and to the underlying wallet structure.
A new --disable-bip70 option may be passed to ./configure to prevent Groestlcoin-Qt from being built with support for the BIP70 payment protocol or from linking libssl. As the payment protocol has exposed Groestlcoin Core to libssl vulnerabilities in the past, builders who don't need BIP70 support are encouraged to use this option to reduce their exposure to future vulnerabilities.
The minimum required version of Qt (when building the GUI) has been increased from 5.2 to 5.5.1 (the depends system provides 5.9.7)
getnodeaddresses returns peer addresses known to this node. It may be used to find nodes to connect to without using a DNS seeder.
listwalletdir returns a list of wallets in the wallet directory (either the default wallet directory or the directory configured bythe -walletdir parameter).
getrpcinfo returns runtime details of the RPC server. Currently, it returns an array of the currently active commands and how long they've been running.
deriveaddresses returns one or more addresses corresponding to an output descriptor.
getdescriptorinfo accepts a descriptor and returns information aboutit, including its computed checksum.
joinpsbts merges multiple distinct PSBTs into a single PSBT. The multiple PSBTs must have different inputs. The resulting PSBT will contain every input and output from all the PSBTs. Any signatures provided in any of the PSBTs will be dropped.
analyzepsbt examines a PSBT and provides information about what the PSBT contains and the next steps that need to be taken in order to complete the transaction. For each input of a PSBT, analyze psbt provides information about what information is missing for that input, including whether a UTXO needs to be provided, what pubkeys still need to be provided, which scripts need to be provided, and what signatures are still needed. Every input will also list which role is needed to complete that input, and analyzepsbt will also list the next role in general needed to complete the PSBT. analyzepsbt will also provide the estimated fee rate and estimated virtual size of the completed transaction if it has enough information to do so.
utxoupdatepsbt searches the set of Unspent Transaction Outputs (UTXOs) to find the outputs being spent by the partial transaction. PSBTs need to have the UTXOs being spent to be provided because the signing algorithm requires information from the UTXO being spent. For segwit inputs, only the UTXO itself is necessary. For non-segwit outputs, the entire previous transaction is needed so that signers can be sure that they are signing the correct thing. Unfortunately, because the UTXO set only contains UTXOs and not full transactions, utxoupdatepsbt will only add the UTXO for segwit inputs.
getpeerinfo now returns an additional minfeefilter field set to the peer's BIP133 fee filter. You can use this to detect that you have peers that are willing to accept transactions below the default minimum relay fee.
The mempool RPCs, such as getrawmempool with verbose=true, now return an additional "bip125-replaceable" value indicating whether thetransaction (or its unconfirmed ancestors) opts-in to asking nodes and miners to replace it with a higher-feerate transaction spending any of the same inputs.
settxfee previously silently ignored attempts to set the fee below the allowed minimums. It now prints a warning. The special value of"0" may still be used to request the minimum value.
getaddressinfo now provides an ischange field indicating whether the wallet used the address in a change output.
importmulti has been updated to support P2WSH, P2WPKH, P2SH-P2WPKH, and P2SH-P2WSH. Requests for P2WSH and P2SH-P2WSH accept an additional witnessscript parameter.
importmulti now returns an additional warnings field for each request with an array of strings explaining when fields are being ignored or are inconsistent, if there are any.
getaddressinfo now returns an additional solvable Boolean field when Groestlcoin Core knows enough about the address's scriptPubKey, optional redeemScript, and optional witnessScript for the wallet to be able to generate an unsigned input spending funds sent to that address.
The getaddressinfo, listunspent, and scantxoutset RPCs now return an additional desc field that contains an output descriptor containing all key paths and signing information for the address (except for the private key). The desc field is only returned for getaddressinfo and listunspent when the address is solvable.
importprivkey will preserve previously-set labels for addresses or public keys corresponding to the private key being imported. For example, if you imported a watch-only address with the label "coldwallet" in earlier releases of Groestlcoin Core, subsequently importing the private key would default to resetting the address's label to the default empty-string label (""). In this release, the previous label of "cold wallet" will be retained. If you optionally specify any label besides the default when calling importprivkey, the new label will be applied to the address.
getmininginfo now omits currentblockweight and currentblocktx when a block was never assembled via RPC on this node.
The getrawtransaction RPC & REST endpoints no longer check the unspent UTXO set for a transaction. The remaining behaviors are as follows:
If a blockhash is provided, check the corresponding block.
If no blockhash is provided, check the mempool.
If no blockhash is provided but txindex is enabled, also check txindex.
unloadwallet is now synchronous, meaning it will not return until the wallet is fully unloaded.
importmulti now supports importing of addresses from descriptors. A desc parameter can be provided instead of the "scriptPubKey" in are quest, as well as an optional range for ranged descriptors to specify the start and end of the range to import. Descriptors with key origin information imported through importmulti will have their key origin information stored in the wallet for use with creating PSBTs.
listunspent has been modified so that it also returns witnessScript, the witness script in the case of a P2WSH orP2SH-P2WSH output.
createwallet now has an optional blank argument that can be used to create a blank wallet. Blank wallets do not have any keys or HDseed. They cannot be opened in software older than 2.18.2. Once a blank wallet has a HD seed set (by using sethdseed) or private keys, scripts, addresses, and other watch only things have been imported, the wallet is no longer blank and can be opened in 2.17.2. Encrypting a blank wallet will also set a HD seed for it.
signrawtransaction is removed after being deprecated and hidden behind a special configuration option in version 2.17.2.
The 'account' API is removed after being deprecated in v2.17.2 The 'label' API was introduced in v2.17.2 as a replacement for accounts. See the release notes from v2.17.2 for a full description of the changes from the 'account' API to the 'label' API.
addwitnessaddress is removed after being deprecated in version 2.16.0.
generate is deprecated and will be fully removed in a subsequent major version. This RPC is only used for testing, but its implementation reached across multiple subsystems (wallet and mining), so it is being deprecated to simplify the wallet-node interface. Projects that are using generate for testing purposes should transition to using the generatetoaddress RPC, which does not require or use the wallet component. Calling generatetoaddress with an address returned by the getnewaddress RPC gives the same functionality as the old generate RPC. To continue using generate in this version, restart groestlcoind with the -deprecatedrpc=generate configuration option.
Be reminded that parts of the validateaddress command have been deprecated and moved to getaddressinfo. The following deprecated fields have moved to getaddressinfo: ismine, iswatchonly,script, hex, pubkeys, sigsrequired, pubkey, embedded,iscompressed, label, timestamp, hdkeypath, hdmasterkeyid.
The addresses field has been removed from the validateaddressand getaddressinfo RPC methods. This field was confusing since it referred to public keys using their P2PKH address. Clients should use the embedded.address field for P2SH or P2WSH wrapped addresses, and pubkeys for inspecting multisig participants.
A new /rest/blockhashbyheight/ endpoint is added for fetching the hash of the block in the current best blockchain based on its height (how many blocks it is after the Genesis Block).
A new Window menu is added alongside the existing File, Settings, and Help menus. Several items from the other menus that opened new windows have been moved to this new Window menu.
In the Send tab, the checkbox for "pay only the required fee" has been removed. Instead, the user can simply decrease the value in the Custom Fee rate field all the way down to the node's configured minimumrelay fee.
In the Overview tab, the watch-only balance will be the only balance shown if the wallet was created using the createwallet RPC and thedisable_private_keys parameter was set to true.
The launch-on-startup option is no longer available on macOS if compiled with macosx min version greater than 10.11 (useCXXFLAGS="-mmacosx-version-min=10.11" CFLAGS="-mmacosx-version-min=10.11" for setting the deployment sdkversion)
A new groestlcoin-wallet tool is now distributed alongside Groestlcoin Core's other executables. Without needing to use any RPCs, this tool can currently create a new wallet file or display some basic information about an existing wallet, such as whether the wallet is encrypted, whether it uses an HD seed, how many transactions it contains, and how many address book entries it has.
Since version 2.16.0, Groestlcoin Core's built-in wallet has defaulted to generating P2SH-wrapped segwit addresses when users want to receive payments. These addresses are backwards compatible with all widely used software. Starting with Groestlcoin Core 2.20.1 (expected about a year after 2.18.2), Groestlcoin Core will default to native segwitaddresses (bech32) that provide additional fee savings and other benefits. Currently, many wallets and services already support sending to bech32 addresses, and if the Groestlcoin Core project sees enough additional adoption, it will instead default to bech32 receiving addresses in Groestlcoin Core 2.19.1. P2SH-wrapped segwit addresses will continue to be provided if the user requests them in the GUI or by RPC, and anyone who doesn't want the update will be able to configure their default address type. (Similarly, pioneering users who want to change their default now may set the addresstype=bech32 configuration option in any Groestlcoin Core release from 2.16.0 up.)
BIP 61 reject messages are now deprecated. Reject messages have no use case on the P2P network and are only logged for debugging by most network nodes. Furthermore, they increase bandwidth and can be harmful for privacy and security. It has been possible to disable BIP 61 messages since v2.17.2 with the -enablebip61=0 option. BIP 61 messages will be disabled by default in a future version, before being removed entirely.
The submitblock RPC previously returned the reason a rejected block was invalid the first time it processed that block but returned a generic "duplicate" rejection message on subsequent occasions it processed the same block. It now always returns the fundamental reason for rejecting an invalid block and only returns "duplicate" for valid blocks it has already accepted.
A new submitheader RPC allows submitting block headers independently from their block. This is likely only useful for testing.
The signrawtransactionwithkey and signrawtransactionwithwallet RPCs have been modified so that they also optionally accept a witnessScript, the witness script in the case of a P2WSH orP2SH-P2WSH output. This is compatible with the change to listunspent.
For the walletprocesspsbt and walletcreatefundedpsbt RPCs, if thebip32derivs parameter is set to true but the key metadata for a public key has not been updated yet, then that key will have a derivation path as if it were just an independent key (i.e. no derivation path and its master fingerprint is itself).
The -usehd configuration option was removed in version 2.16.0 From that version onwards, all new wallets created are hierarchical deterministic wallets. This release makes specifying -usehd an invalid configuration option.
This release allows peers that your node automatically disconnected for misbehaviour (e.g. sending invalid data) to reconnect to your node if you have unused incoming connection slots. If your slots fill up, a misbehaving node will be disconnected to make room for nodes without a history of problems (unless the misbehaving node helps your node in some other way, such as by connecting to a part of the Internet from which you don't have many other peers). Previously, Groestlcoin Core banned the IP addresses of misbehaving peers for a period (default of 1 day); this was easily circumvented by attackers with multiple IP addresses. If you manually ban a peer, such as by using the setban RPC, all connections from that peer will still be rejected.
The key metadata will need to be upgraded the first time that the HDseed is available. For unencrypted wallets this will occur on wallet loading. For encrypted wallets this will occur the first time the wallet is unlocked.
Newly encrypted wallets will no longer require restarting the software. Instead such wallets will be completely unloaded and reloaded to achieve the same effect.
A sub-project of Bitcoin Core now provides Hardware Wallet Interaction (HWI) scripts that allow command-line users to use several popular hardware key management devices with Groestlcoin Core. See their project page for details.
This release changes the Random Number Generator (RNG) used from OpenSSL to Groestlcoin Core's own implementation, although entropy gathered by Groestlcoin Core is fed out to OpenSSL and then read back in when the program needs strong randomness. This moves Groestlcoin Core a little closer to no longer needing to depend on OpenSSL, a dependency that has caused security issues in the past. The new implementation gathers entropy from multiple sources, including from hardware supporting the rdseed CPU instruction.
On macOS, Groestlcoin Core now opts out of application CPU throttling ("app nap") during initial blockchain download, when catching up from over 100 blocks behind the current chain tip, or when reindexing chain data. This helps prevent these operations from taking an excessively long time because the operating system is attempting to conserve power.
How to Upgrade?
Windows If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), then run the installer. OSX If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), run the dmg and drag Groestlcoin Core to Applications. Ubuntu http://groestlcoin.org/forum/index.php?topic=441.0
ALL NEW - Groestlcoin Moonshine iOS/Android Wallet
Built with React Native, Moonshine utilizes Electrum-GRS's JSON-RPC methods to interact with the Groestlcoin network. GRS Moonshine's intended use is as a hot wallet. Meaning, your keys are only as safe as the device you install this wallet on. As with any hot wallet, please ensure that you keep only a small, responsible amount of Groestlcoin on it at any given time.
Groestlcoin Mainnet & Testnet supported
Multiple wallet support
Electrum - Support for both random and custom peers
Biometric + Pin authentication
Custom fee selection
Import mnemonic phrases via manual entry or scanning
BIP39 Passphrase functionality
Support for Segwit-compatible & legacy addresses in settings
Support individual private key sweeping
UTXO blacklisting - Accessible via the Transaction Detail view, this allows users to blacklist any utxo that they do not wish to include in their list of available utxo's when sending transactions. Blacklisting a utxo excludes its amount from the wallet's total balance.
Ability to Sign & Verify Messages
Support BitID for password-free authentication
Coin Control - This can be accessed from the Send Transaction view and basically allows users to select from a list of available UTXO's to include in their transaction.
HODL GRS connects directly to the Groestlcoin network using SPV mode and doesn't rely on servers that can be hacked or disabled. HODL GRS utilizes AES hardware encryption, app sandboxing, and the latest security features to protect users from malware, browser security holes, and even physical theft. Private keys are stored only in the secure enclave of the user's phone, inaccessible to anyone other than the user. Simplicity and ease-of-use is the core design principle of HODL GRS. A simple recovery phrase (which we call a Backup Recovery Key) is all that is needed to restore the user's wallet if they ever lose or replace their device. HODL GRS is deterministic, which means the user's balance and transaction history can be recovered just from the backup recovery key.
Simplified payment verification for fast mobile performance
Groestlcoin Seed Savior is a tool for recovering BIP39 seed phrases. This tool is meant to help users with recovering a slightly incorrect Groestlcoin mnemonic phrase (AKA backup or seed). You can enter an existing BIP39 mnemonic and get derived addresses in various formats. To find out if one of the suggested addresses is the right one, you can click on the suggested address to check the address' transaction history on a block explorer.
If a word is wrong, the tool will try to suggest the closest option.
If a word is missing or unknown, please type "?" instead and the tool will find all relevant options.
NOTE: NVidia GPU or any CPU only. AMD graphics cards will not work with this address generator. VanitySearch is a command-line Segwit-capable vanity Groestlcoin address generator. Add unique flair when you tell people to send Groestlcoin. Alternatively, VanitySearch can be used to generate random addresses offline. If you're tired of the random, cryptic addresses generated by regular groestlcoin clients, then VanitySearch is the right choice for you to create a more personalized address. VanitySearch is a groestlcoin address prefix finder. If you want to generate safe private keys, use the -s option to enter your passphrase which will be used for generating a base key as for BIP38 standard (VanitySearch.exe -s "My PassPhrase" FXPref). You can also use VanitySearch.exe -ps "My PassPhrase" which will add a crypto secure seed to your passphrase. VanitySearch may not compute a good grid size for your GPU, so try different values using -g option in order to get the best performances. If you want to use GPUs and CPUs together, you may have best performances by keeping one CPU core for handling GPU(s)/CPU exchanges (use -t option to set the number of CPU threads).
Fixed size arithmetic
Fast Modular Inversion (Delayed Right Shift 62 bits)
SecpK1 Fast modular multiplication (2 steps folding 512bits to 256bits using 64 bits digits)
Use some properties of elliptic curve to generate more keys
SSE Secure Hash Algorithm SHA256 and RIPEMD160 (CPU)
Groestlcoin EasyVanity 2020 is a windows app built from the ground-up and makes it easier than ever before to create your very own bespoke bech32 address(es) when whilst not connected to the internet. If you're tired of the random, cryptic bech32 addresses generated by regular Groestlcoin clients, then Groestlcoin EasyVanity2020 is the right choice for you to create a more personalised bech32 address. This 2020 version uses the new VanitySearch to generate not only legacy addresses (F prefix) but also Bech32 addresses (grs1 prefix).
Ability to continue finding keys after first one is found
Includes warning on start-up if connected to the internet
Ability to output keys to a text file (And shows button to open that directory)
Show and hide the private key with a simple toggle switch
Show full output of commands
Ability to choose between Processor (CPU) and Graphics Card (GPU) ( NVidia ONLY! )
Features both a Light and Dark Material Design-Style Themes
Free software - MIT. Anyone can audit the code.
Written in C# - The code is short, and easy to review.
Groestlcoin WPF is an alternative full node client with optional lightweight 'thin-client' mode based on WPF. Windows Presentation Foundation (WPF) is one of Microsoft's latest approaches to a GUI framework, used with the .NET framework. Its main advantages over the original Groestlcoin client include support for exporting blockchain.dat and including a lite wallet mode. This wallet was previously deprecated but has been brought back to life with modern standards.
Works via TOR or SOCKS5 proxy
Can use bootstrap.dat format as blockchain database
Import/Export blockchain to/from bootstrap.dat
Import wallet.dat from Groestlcoin-qt wallet
Export wallet to wallet.dat
Use both groestlcoin-wpf and groestlcoin-qt with the same addresses in parallel. When you send money from one program, the transaction will automatically be visible on the other wallet.
Rescan blockchain with a simple mouse click
Works as a full node and listens to port 1331 (listening port can be changed)
Fast Block verifying, parallel processing on multi-core CPUs
Mine Groestlcoins with your CPU by a simple mouse click
All private keys are kept encrypted on your local machine (or on a USB stick)
Lite - Has a lightweight "thin client" mode which does not require a new user to download the entire Groestlcoin chain and store it
Free and decentralised - Open Source under GNU license
Fixed Import/Export to wallet.dat
Rescan wallet option
Change wallet password option
Address type and Change type options through *.conf file
Import from bootstrap.dat - It is a flat, binary file containing Groestlcoin blockchain data, from the genesis block through a recent height. All versions automatically validate and import the file "grs.bootstrap.dat" in the GRS directory. Grs.bootstrap.dat is compatible with Qt wallet. GroestlCoin-Qt can load from it.
In Full mode file %APPDATA%\Groestlcoin-WPF\GRS\GRS.bootstrap.dat is full blockchain in standard bootstrap.dat format and can be used with other clients.
Groestlcoin Electrum Personal Server aims to make using Electrum Groestlcoin wallet more secure and more private. It makes it easy to connect your Electrum-GRS wallet to your own full node. It is an implementation of the Electrum-grs server protocol which fulfils the specific need of using the Electrum-grs wallet backed by a full node, but without the heavyweight server backend, for a single user. It allows the user to benefit from all Groestlcoin Core's resource-saving features like pruning, blocks only and disabled txindex. All Electrum-GRS's feature-richness like hardware wallet integration, multi-signature wallets, offline signing, seed recovery phrases, coin control and so on can still be used, but connected only to the user's own full node. Full node wallets are important in Groestlcoin because they are a big part of what makes the system be trust-less. No longer do people have to trust a financial institution like a bank or PayPal, they can run software on their own computers. If Groestlcoin is digital gold, then a full node wallet is your own personal goldsmith who checks for you that received payments are genuine. Full node wallets are also important for privacy. Using Electrum-GRS under default configuration requires it to send (hashes of) all your Groestlcoin addresses to some server. That server can then easily spy on your transactions. Full node wallets like Groestlcoin Electrum Personal Server would download the entire blockchain and scan it for the user's own addresses, and therefore don't reveal to anyone else which Groestlcoin addresses they are interested in. Groestlcoin Electrum Personal Server can also broadcast transactions through Tor which improves privacy by resisting traffic analysis for broadcasted transactions which can link the IP address of the user to the transaction. If enabled this would happen transparently whenever the user simply clicks "Send" on a transaction in Electrum-grs wallet. Note: Currently Groestlcoin Electrum Personal Server can only accept one connection at a time.
Use your own node
Uses less CPU and RAM than ElectrumX
Used intermittently rather than needing to be always-on
Doesn't require an index of every Groestlcoin address ever used like on ElectrumX
UPDATED – Android Wallet 7.38.1 - Main Net + Test Net
The app allows you to send and receive Groestlcoin on your device using QR codes and URI links. When using this app, please back up your wallet and email them to yourself! This will save your wallet in a password protected file. Then your coins can be retrieved even if you lose your phone.
Add confidence messages, helping users to understand the confidence state of their payments.
Handle edge case when restoring via an external app.
Count devices with a memory class of 128 MB as low ram.
Introduce dark mode on Android 10 devices.
Reduce memory usage of PIN-protected wallets.
Tapping on the app's version will reveal a checksum of the APK that was installed.
Fix issue with confirmation of transactions that empty your wallet.
Groestlcoin Sentinel is a great solution for anyone who wants the convenience and utility of a hot wallet for receiving payments directly into their cold storage (or hardware wallets). Sentinel accepts XPUB's, YPUB'S, ZPUB's and individual Groestlcoin address. Once added you will be able to view balances, view transactions, and (in the case of XPUB's, YPUB's and ZPUB's) deterministically generate addresses for that wallet. Groestlcoin Sentinel is a fork of Groestlcoin Samourai Wallet with all spending and transaction building code removed.
Help me recover my bitcoins from my wallet backups.
Hey guys. The history: In 2013 or 2014 I bought 1 BTC and I stored it in one wallet (don't remember which). I have a wallet.dat in my PC and an Armory wallet backup on pdf (paper). The Armory Backup was encrypted and now I can't see public addresses, but AFAIK this shouldn't be an issue because the backup was done later than the last transfer. How can I know if there are bitcoins in the paper wallet? I've had lots of problems with Armory and can't manage to sync the blockchain. On the otherhand I have a HDD from that era with Bitcoin QT installed and a wallet.dat there. The thing is that I can't access that wallet and I don't know if the funds are there. How can I tell if there are BTCs there? I checked the last public key used and still it has the money in it (checked n blockchain.info) The last option is that I transferred that 1 BTC to other wallet that I lost and never backed-up, but I think this is very unlikely. Is there anything I can do to find my missing bitcoins?
I'll preface this post by saying that I understand very little about Bitcoin and was hoping for a fast, painless money transfer. Clearly I was wrong. I recently decided to withdraw a significant amount of money from a website that would only export funds via Bitcoin. After doing the minimal amount of research, I downloaded Bitcoin Core, opened it (choosing to save the data to my startup disk), exported a "receiving address" and initiated the transfer on the website. I thought that I was all set. When I saw that the money had been withdrawn from the website, I went to check my Bitcoin Core wallet and I saw that it had crashed because I didn't have enough disk space to synchronize the blockchain. I am now trying to change the storage path to my external hard drive, but cannot figure out how to save the blockchain data to the hard drive instead of my startup disk. Each time I open Bitcoin Core, it crashes again because of the low startup disk space. I have the "receiving address" on hand but I am afraid that I will lose this money. I suppose I can boil my problems down into a handful of fundamental questions:
Can I save the Blockchain data to an external hard drive?
If I initiated a Bitcoin transfer and my Bitcoin Core crashed, will I still receive the payment?
How can I retrieve my funds if I have to uninstall/reinstall Bitcoin Core?
As you can likely tell, I'm woefully confused and disoriented with the whole Bitcoin system. When you're not acclimated to all of the technical jargon, looking up solutions can only complicate your understanding of everything. If anyone could help a beginner out, I would be tremendously grateful.
(1) Is it true that encrypting an *existing* bitcoin-qt wallet.dat file will "invalidate" any existing backups? (2) Can I use unicode characters - eg ♥ - in the bitcoin-qt wallet passphrase?
I have an existing bitcoin-qt wallet.dat file which I want to encrypt - using the command in the bitcoin-qt Settings menu, involving creating a passphrase. I have 2 (possibly somewhat related) questions: TL;DR (1) If you encrypt an existing wallet.dat file, will the backups of the old wallet.dat file still work? (2) Can you include unicode characters - eg ♥ - in the passphrase used to encrypt a bitcoin-qt wallet.dat file? Worst-case scenario: The answers to (1) and (2) are both "no" - and I attempt to encrypt an existing wallet using unicode, and my backups no longer work (due to a new pool of addresses somehow being created?) and the passphrase isn't what I think it is (due to the unicode characters somehow being misinterpreted?) - and then I could lose all my coins?? Details (1) The following (old, short) thread claims that after you encrypt an existing wallet, any previous backups of that wallet will no longer work: https://pay.reddit.com/Bitcoin/comments/1ccfdk/encrypting_walletdat_in_bitcoinqt/ Obviously, the the first response in that thread was slightly wrong, for saying that the "server" creates a new pool of 100 addresses to draw on. So using word "server" here was certainly incorrect - but maybe the gist of what they were saying might still be correct? (if you simply change "server" to "client"). I can actually understand that there might be reasons why encrypting a wallet.dat file could cause a new pool of 100 addresses to be generated. But it does not make sense to me that this would make any older (unencrypted) backups instantly useless. It seems to me that these older, unencrypted backups would still have their private keys intact, and could thus be used in certain (perhaps limited?) ways - such as:
"sweeping" the funds from the private keys of the old, unencrypted wallet into another wallet, or
doing a normal "spend" from the private keys of the old, unencrypted wallet (However, if the old unencrypted and the new encrypted wallets now contain different pools of addresses, then I imagine that this spend would invalidate the new, encrypted wallet - because any change from the spend would be sent to a "change address" from among those in the old, unencrypted wallet - and so this amount of change would be missing from the new encrypted wallet, right?).
(2) It seems that including a few unicode characters in the bitcoin-qt wallet passphrase would make it a lot stronger (since unicode is a much larger set of characters than ascii), so I would like to include a few. But it would be more reassuring if it could be explicitly stated that this is indeed supported. Possible catastrophic interaction between (1) and (2)? If the answers to (1) and (2) were both "no" (ie, if you encrypt an existing bitcoin-qt wallet.dat file then any existing backups will not work, and unicode characters do not work in bitcoin-qt passphrases), then I'm worried there could be some kind of catastrophic interaction between (1) and (2) where I lose all my coins, as follows: (1) I encrypt my existing wallet - making my old, unencrypted wallet.dat file now invalidated (due to something involving a new pool of addresses being generated?) and (2) I use a passphrase which includes unicode characters which bitcoin-qt appears to accept at the time of creation, but which doesn't work at the time of trying to decrypt the wallet.dat file (due to something going wring with how the supposed unicode characters are actually interpreted while being entered or copied-and-pasted?). In this possible worst-case scenario, my old backups of wallet.dat no longer work, and my newly encrypted wallet.dat has some password which I'm not able to correctly enter anymore. Sorry to be so paranoid about this! Other remarks: (a) I did do a (limited) test of unicode capability for bitcoin-qt wallet.dat passphrases: simply by creating a new (empty) wallet.dat file, and creating a passphrase for it involving unicode characters, and then attempting to change the passphrase (which requires entering the old passphrase that contained unicode characters). This did seem to work ok: it let me re-enter the old passphrase (which included unicode characters) to create a new passphrase. However, since this is an empty wallet (and since bitcoin-qt would ask for the passphrase only when attempting to actually spend from an encrypted wallet), I did not see a way to fully test whether the passphrase actually worked to decrypt a unicode-passphrase-encrypted wallet for the purpose of spending from it. (I'm still downloading the rest of the blockchain and it's going to take at least another week on my slow connection, so don't see how I could send a small amount to the new wallet to test it either. My existing wallet.dat file was originally created on an internet-connected machine a long time ago, but it's been offline ever since, so in some sense it's kinda-sorta been in somewhat "cold" storage all this time, and I would prefer to avoid putting it online on a "hot" internet-connected machine until absolutely necessary.) (b) Long-term, I am actually also in the process of setting up a proper cold storage system based on Armory, which I have installed on 2 Ubuntu machines (one offline and one online). But I have a slow internet connection, and the backups of this old wallet.dat file have been sitting around unencrypted for ages (I've been relying simply on then being physically inaccessible). Now some "things" are coming up over the next few days where I some better security right away, and it's probably going to take over a week for Armory/bitcoind to update my local copy of the blockchain. So in the meantime, I also need some basic additional security right now - so encrypting the existing bitcoin-qt wallet.dat file using a strong passphrase (and making some new backups) seems like it could be a reasonable initial approach. Thanks for any help!
Need help having one wallet on multiple computers...any guides or saints available?
It's pretty self explanatory...with all the new emphasis about keeping your in your own storage and not online, I'm trying to make the move. However, I'm having a hard time with it because I liked being able to access the online wallet from any of my computers. I can't find a clear step by step guide of this process, every one I've seen assumes you already know where everything is and what every value means...I don't. I need an idiot's approach to this. So far I've got bitcoin-qt running on one computer with a balance, and the wallet.dat file is encrypted and backed up. Now what do I do? $1 bitcointip for whomever can help me :)
My backups, do I have to update them periodically?
Sorry for all of the questions. You don't have to answer them all individually, I just need a little direction. Thanks in advance. One thing that has confused me for a while is keeping backups of my wallet. Say I back up the wallet dat on to flash drives. If I take one of those drives and put it in a vault for a year or give it to my family for safe keeping or whatever, is that backup now missing 1 year's worth of transactions? If I had added a few BTC to this wallet during that time, would my backups not receive it? Or would it update to the new balance when it eventually synced again with the network again? Lastly if I created a wallet address with the express purpose of just receiving deposits, could I put it in a safe deposit box for years at a time and have access to my money when I import it down the line? What if they update the QT client between when I make my back ups and now, will the wallet.dat still be compatible? I want to have a wallet where I can just store some of my coins to avoid temptation. At very least just break up my coins into multiple wallets such as one of spending and one for savings. I've heard that armory allows multiple wallets, are they a web based client or do I retain control of the wallet file? I've only been using QT because it seems like the most complete package .
When I spend part of a paper wallet, is the private key revealed to the community at large?
Let's say I have a paper wallet with ten BTC (from a 3 BTC deposit and a 7 BTC deposit). If I want to spend 3 BTC, I need to prove that I know my paper wallet's private key. My question is, how can I prove this without actually revealing my private address to the block chain? As I understand it, even after spending the 3 BTC my paper wallet is technically safe (unless my local machine is compromised). Is this correct? Or by spending the 3 BTC, is the paper wallet immediately compromised and I really should have used the change function to empty the remainder of the paper wallet into a brand new paper wallet? I've read a LOT about bitcoin over the last few weeks, but I can't find an answer to this question. So I guess I'm wondering (1) what's the functional answer to this question [e.g. yes it's revealed, or no it's not] and (2) what's the technical answer to this question [e.g. how does the private key remain a secret while still proving that I have it]?
Please help me understand Electrum deterministic wallet and its "seeds". I want to know how to best secure my wallet / private keys.
I'm looking around for a Bitcoin software wallet that would simply have a built in "file encryption/decryption" feature. If I understand correctly, when I attach a passphrase to my wallet/private key, everyone knowing that passphrase could have access to my private key without having access to the file itself. I find that less secure then having the file locally encrypted by the Bitcoin client. This way, an attacker would have to have access to the passphrase AND the file. Now how does Electrum "seeds" work? I'm assuming they work similar to tying a passphrase to a private key in the Bitcoin-QT client and that you don't need access to the file. I see a flaw/weakness in that. Any software wallet out there that let you decide where to keep the wallet.dat file and that automatically encrypt/decrypt it? Otherwise, I think manually encrypting and then decrypting the wallet.dat with a third party software to perfom transactions would be the safest way to go about it. What do you guys think? Anyone can help?
Bitcoin wallet encrypted - old backups become useless?
When I encrypted my wallet (don't hate, it was encrypted before too, just not with this feature) today, I was presented with a warning to replace all my old unencrypted backups with this new one, since they become useless. What exactly does that mean? My guess would be something about return addresses, and/or replacing all unused keys with new ones in the newly encrypted wallet, how far off am I ? I can't find the answer anywhere, and would appreciate ELI5 type of an answer :) thanks!
Storage space: I am using an 8 GB microSD card for the OS, and a 128 GB USB drive for data. Minimums I would recommend: 8GB SD card and 32 GB USB drive.
Reddcoin Core client version: v220.127.116.11-a8767ba-beta (most recent version at this moment). ↳ Screenshot
You need the OS; Lubuntu. Download Lubuntu (707 MB) for the Raspberry Pi: https://ubuntu-pi-flavour-maker.org/download/. It's a .torrent download, so you will need a BitTorrent client. Message me or post in this thread if you need help with this.
You need software to write the OS to the SD card. I use Etcher. Download Etcher: https://etcher.io/.
Select image: select the lubuntu-16.04.2-desktop-armhf-raspberry-pi.img.xz file.
Select drive: select your microSD card.
Plug the SD card into your Raspberry Pi and power it up.
Lubuntu should boot up.
Set up Lubuntu, connect to the internet (wired or wireless). ↳ As username, I chose "rpi3b". You will see this username throughout this whole tutorial.
Make sure date and time are correct ([Menu] > System Tools > Time and Date). ↳ Click on Unlock to make changes. I personally change Configuration to "Keep synchronized with Internet servers". ↳ Screenshot
Reboot ([Menu] > Logout > Reboot). I am connected to wifi, but have issues getting wifi to work on initial boot. A reboot solves this issue.
Make sure system is up-to-date, install never versions.
Open LXTerminal ([Menu] > System Tools > LXTerminal). ↳ Screenshot
Enter the following in LXTerminal: sudo apt update && sudo apt upgrade ↳ Screenshot
You will be asked if you really want to continue. Enter Y (yes).
Updates are being installed! Wait until it's finished.
Install programs that will be used in this tutorial.
GParted: to partition the USB drive.
Htop: to see the amount of memory (RAM) and swap that is in use.
Enter the following in LXTerminal to install these 2 programs. sudo apt install gparted && sudo apt install htop ↳ Screenshot
Create 2 partitions on the USB drive: 1) Swap partition 2) data partition (for the Reddcoin blockchain) The swap partition is necessary: The Reddcoin wallet can be memory intensive. To prevent any crashes or freezes, add 2 GB of 'virtual' memory by creating a swap partition.
Important: Backup your USB drive if needed. The USB drive will be formatted, so the data on the USB drive will be wiped.
Please use the USB drive solely for this purpose, do not combine it with other stuff.
Keep your USB drive plugged in, do not (randomly) plug it out.
Plug your USB drive in.
GParted will be used to create the partititons. Start GParted via LXTerminal: sudo gparted ↳ Screenshot
Apply the changes. Click on the check mark or select Edit > Apply All Operations. ↳ Screenshot ↳ Screenshot
Important: The name of the swap partition is needed later, so please write it down. Mine is /dev/sda1 (first partition on first drive (drive 'a')). ↳ Screenshot
Reboot. After the reboot, the data partition you just created should be visible on your desktop. ↳ Screenshot
The swap partition is created, so now we can enable and use it.
The swap in use can be monitored with the program Htop. Open Htop ([Menu] > System Tools > Htop) to see the 'Swp' (swap) in use. ↳ Screenshot By default, swap is not used, so 0K. ↳ Screenshot You can leave Htop open.
To enable the swap partition, open LXTerminal and enter the following commands: (Assuming /dev/sda1 is your swap partition.)
Unpack the file (large file, takes around 15 minutes to unpack): sudo xz -d bootstrap.dat.xz ↳ Screenshot
After a successful unpack, your will find the file bootstrap.dat in your USB root folder. ↳ Screenshot
On the first run of the Reddcoin Core client, it will ask for a data directory to store the blockchain and wallet data.
Start the Reddcoin Core client: sudo /media/rpi3b/usb/reddcoin/src/qt/reddcoin-qt ↳ Screenshot
The welcome screen will appear and ask you about the data directory. I suggest a new folder on your USB drive, I picked blockchain. The directory will be created with all the necessary files. ↳ Screenshot
Click on the three dots (...) on the right. ↳ Screenshot
Click on Create Folder at the upper right corner. Type and enter in the folder name. (In my case: blockchain.) Click on Open. ↳ Screenshot ↳ Screenshot ↳ Screenshot
After selecting the directory, the Reddcoin Core client will start. Wait till it's fully loaded and close it.
Move the bootstrap.dat file to your data directory you selected in the previous step. By doing this, Reddcoin Core will use the bootstrap.dat file to import the blockchain, which speeds up syncing. sudo mv bootstrap.dat /media/rpi3b/usb/blockchain/ (Assuming blockchain as data directory.) ↳ Screenshot
The Reddcoin Core client set up is completed, but you still have to sync fully with the blockchain before you can send, receive and stake.
Keep the client running until it's fully synchronized. It will use the bootstrap file first, and download the rest of the blockchain to complete the sync. This can take some time (it took 2 days for me). Syncing the blockchain uses a lot of resources, so the software may react slow.
You can see the progress in the debug window (Help > Debug window). ↳ Screenshot
When the synchronization is completed, the red (out of sync) will disappear on the Overview screen! ↳ Screenshot
When synchronization is complete, you can start staking your Reddcoins.
You can write down your private key or copy and save it in a document. Make sure you save it somewhere only you can access it.
To import later: Debug window -> Console -> importprivkey [label] [label] is optional. ↳ Screenshot (without a label) ↳ Screenshot (with a label)
Boot with only 1 USB drive plugged in: Make sure only the USB drive (with the swap partition and data partition) is plugged in when you boot up your Raspberry Pi. This to make sure the swap partition (/dev/sda1) is recognized correctly. If you boot up with multiple USB drives, Lubuntu might see the USB drive with the swap partition as the second drive (instead of the first drive), and ignore the 2 GB swap partition. If this happens, starting Reddcoin can render the Raspberry Pi unresponsive.
Start Reddcoin Core easier Run a shell script (.sh file), so you can start Reddcoin just by double clicking on an icon on your Desktop.
Right Click on your Desktop and select Create New -> Empty File. ↳ Screenshot
Enter a file name, make sure it ends with .sh, and click on OK. I've chosen for Reddcoin.sh. ↳ Screenshot The file will be created on your Desktop. ↳ Screenshot
Add the command to start Reddcoin to the file.
Right click on the file, select Leafpad (to open the file in a text editor). ↳ Screenshot
Add the following to the file and save the file: sudo /media/rpi3b/usb/reddcoin/src/qt/reddcoin-qt ↳ Screenshot
To be able to execute the shell script (.sh), it has to have 'execute permissions'.
Right click on the file, and select Properties. ↳ Screenshot
Click on the Permissions tab.
For Execute, select Anyone, and click on OK. ↳ Screenshot
To start Reddcoin Core, double click on the file. A new window will pop-up, asking you what you want. Execute in Terminal is what we want, so you can click on enter. ↳ Screenshot Reddcoin Core will now start. Do not close the Terminal window, you can minimize it if needed.
Minimization options Adjust minimization options, so you can safely press on the X button (the close/exit button on the upper right corner).
Activate 'Minimize on close'. Settings -> Options... -> Window (tab) -> Minimize on close. ↳ Screenshot Reddcoin will still run when you click on the X button. To close/exit Reddcoin, right click on the Reddcoin icon in the system tray (bottom right corner). ↳ Screenshot
RealVNC VNC Viewer (client) and VNC Connect (server): To remote connect to the Raspberry Pi, I use VNC Viewer ad VNC Connect from RealVNC.
After your download is finished, open the file and click Install Package. ↳ Screenshot
To run the VNC Connect once:
Open [Menu] > Run, and enter: vncserver-x11 ↳ Screenshot
To auto run on startup:
Open Default applications for LXSession ([Menu] > Preferences > Default applications for LXSession). ↳ Screenshot
In LXSessions configuration, select Autostart in the menu left.
Under Manual autostarted applications, enter vncserver-x11 and click on + Add. ↳ Screenshot ↳ Screenshot
Reboot your Raspberry Pi and check if VNC Connect is started automatically after the reboot.
When VNC Connect is running, you'll see a VNC icon on the right bottom corner. Double click the icon to open VNC Connect and to see the IP address you need to enter to connect to your Raspberry Pi. ↳ Screenshot
Hey guys! I'm fairly new to this sub and to having a home lab in general and I found this community to be so kind and helping, I wanted to give back what I've learned. I'm seeing a lot of questions asked around on improvements and on what to do with x extra hardware so I thought it would be nice to have a thread to regroup that.
I'll put here some stuff I gathered and the most common questions I've seen, feel free to contribute and i'll update the post along.
oVirt -> Viurtualization
Hurrcane Electric DNS -> Dynamic DNS
No-IP -> DynamicDNS
SpiceWorks -> Misc
ERPXE -> Backup
Homelab Dashboard Posts about dashboards have been growing lately and here are some of the best that were kind enough to provide us with their sources.
Pi-hole Prevents ads from even reaching you by blocking dns queries. Works as a relay between your isp's dns server (or whichever you choose). Can also work as a local dns.
RetroPie From their website: The RetroPie Project is a collection of works that all have the overall goal to turn the Raspberry Pi into a dedicated retro-gaming console.
raspnode Tutorials for installing cryptocurrency nodes on a Raspberry Pi. Participate in the Bitcoin, Litecoin, or Ethereum network. Full nodes, SPV wallets, cold storage, offline transaction signing.
flightradar24 is a flight tracking service that provides you with real-time info about thousands of aircraft around the world.
The Plane Finder is the easiest and most accurate way to share your ADS-B and MLAT data with us.
PiAware is the world's largest flight tracking data company and provides over 10,000 aircraft operators and service companies as well as over 12,000,000 passengers with global flight tracking solutions.
CouchPotato is an wesome PVR for usenet and torrents. Just fill in what you want to see and CouchPotato will add it to your "want to watch"-list. Every day it will search through multiple NZBs & Torrents sites, looking for the best possible match. If available, it will download it using your favorite download software.
SickBeard is a PVR for newsgroup users (with limited torrent support). It watches for new episodes of your favorite shows and when they are posted it downloads them, sorts and renames them, and optionally generates metadata for them.
SickRage Automatic Video Library Manager for TV Shows. It watches for new episodes of your favorite shows, and when they are posted it does its magic.
FlexGet is a multipurpose automation tool for content like torrents, nzbs, podcasts, comics, series, movies, etc.
sabnzbd makes Usenet as simple and streamlined as possible by automating everything we can.
nzbget is a binary downloader, which downloads files from Usenet based on information given in nzb-files.
headphones is an automated music downloader for NZB and Torrent, written in Python. It supports SABnzbd, NZBget, Transmission, µTorrent and Blackhole.
= Virtualization =
XenServer is an open source project and community managed by Citrix. The project develops open source software for securely running multiple operating systems and applications on a single device, enabling hardware consolidation and automation to reduce costs and simplify IT management of servers and applications.
Proxmox is a complete open source server virtualization management software. It is based on KVM virtualization and container-based virtualization and manages KVM virtual machines, Linux containers (LXC), storage, virtualized networks, and HA clusters.
VirtualBox is a general-purpose full virtualizer for x86 hardware, targeted at server, desktop and embedded use.
SmartOS is a hypervisor lean enough to run entirely in memory, powerful enough to run as much as you want to throw at it.
KVM is a full virtualization solution for Linux on x86 hardware containing virtualization extensions (Intel VT or AMD-V).
oVirt is free, open-source virtualization management platform. It was founded by Red Hat as a community project on which Red Hat Enterprise Virtualization is based.
= Monitoring =
Nagios is a powerful monitoring system that enables organizations to identify and resolve IT infrastructure problems before they affect critical business processes.
OMD avoids the tedious work of manually compiling and integrating Nagios addons while at the same time avoiding the problems of pre-packaged installations coming with your Linux distribution
Pandorafms is the most flexible monitoring software in the market. With a single tool, Pandora FMS can monitor everything: infrastructure, applications, services, and business progress.
PRTG Monitoring is a network monitoring software that is powerful and easy to use. Free for 100 sensors.
Zabbix is the ultimate enterprise-level software designed for real-time monitoring of millions of metrics collected from tens of thousands of servers, virtual machines and network devices.
Observium is a low-maintenance auto-discovering network monitoring platform supporting a wide range of device types, platforms and operating systems.
LibreNMS is a fully featured network monitoring system that provides a wealth of features and device support.
Cacti is a complete network graphing solution designed to harness the power of RRDTool's data storage and graphing functionality.
Munin surveys all your computers and remembers what it saw. It presents all the information in graphs through a web interface.
ZenOSS is an award winning, open source monitoring product that automatically discovers resources, without the use of agents, and provides visibility across all aspects of your IT environment whether physical, virtual or in the cloud.
AlienVault OSSIM is an open source security information and event management system. OSSIM combines Snort, OpenVAS, Nagios, OSSEC, and other tools into a single portal with log collection and correlation.
Graylog Centralize and aggregate all your log files for 100% visibility. Use our powerful query language to search through terabytes of log data to discover and analyze important information.
= Media Center =
Plex organizes your video, music, and photo collections and streams them to all of your screens.
Kodi, if a free and open source (GPL) software media center for playing videos, music, pictures, games, and more.
Emby brings all of your home videos, music, and photos together into one place.
OpenMediaVault is the next generation network attached storage (NAS) solution based on Debian Linux. It contains services like SSH, (S)FTP, SMB/CIFS, DAAP media server, RSync, BitTorrent client and many more.
PlexPy is a tool to easily monitor and receive notify playback events from Plex.
MediaGoblin is a free software media publishing platform that anyone can run. You can think of it as a decentralized alternative to Flickr, YouTube, SoundCloud, etc.
= Remote access =
Guacamole is a clientless remote desktop gateway. It supports standard protocols like VNC and RDP.
Chrome Remote Desktop allows users to remotely access another computer through Chrome browser or a Chromebook.
mRemoteNG is a fork of mRemote, an open source, tabbed, multi-protocol, remote connections manager. mRemoteNG adds bug fixes and new features to mRemote.
= VOIP =
Elastix is an Open Source Software to establish Unified Communications. About this concept, Elastix goal is to incorporate all the communication alternatives, available at an enterprise level, into a unique solution.
Asterisk is an open source framework for building communications applications. Asterisk turns an ordinary computer into a communications server.
FreePBX is a web-based open source GUI (graphical user interface) that controls and manages Asterisk (PBX)
= Networking =
pfSense is an open-source firewall/router computer software distribution based on FreeBSD.
Open vSwitch is a production quality, multilayer virtual switch licensed under the open source Apache 2.0 license.
SophosUTM Complete Unified Threat Management protection for your network, web, email, applications, and users.
SohposXG is a fully equipped software version of the Sophos XG firewall, available at no cost for home users.
feeloadbalancer is offering the Free LoadMaster to help small companies and developers by providing them with a robust and proven load balancing option.
NetWorx is a simple and free, yet powerful tool that helps you objectively evaluate your bandwidth consumption situation.
VyOS is a community fork of Vyatta, a Linux-based network operating system that provides software-based network routing, firewall, and VPN functionality.
freeIPA is an integrated Identity and Authentication solution for Linux/UNIX networked environments.
Metiix Blockade Network-Wide Malware, Tracking, & Ad Blocking (Can also run on Raspbian)
OpenVPN is an open-source software application that implements virtual private network (VPN) techniques for creating secure point-to-point or site-to-site connections in routed or bridged configurations and remote access facilities. It uses a custom security protocol that utilizes SSL/TLS for key exchange.
Smoothwall is a Free and Open Source firewall that includes its own security-hardened GNU/Linux operating system and an easy-to-use web interface.
ClearOS is an operating system for your Server, Network, and Gateway systems. It is designed for homes, small to medium businesses, and distributed environments. ClearOS is commonly known as the Next Generation Small Business Server, while including indispensable Gateway and Networking functionality.
DriveBender is the class leading storage pooling technology for Microsoft Windows. Developed by Division-M, Drive Bender allows for file redundancy via file duplication, and unlike RAID, does not require any proprietary drive format or complicated setup. (Now free)
CloudExtender is local Windows storage, powered by the cloud... with optional, state of the art TNO (trust no one) file encryption built right in. Create a Windows drive or folder that maps directly to your favorite storage platform in minutes.
SnapRAID is a backup program for disk arrays. It stores parity information of your data and it recovers from up to six disk failures.
flexRAID is a family of storage data protection products that provide great flexibility and various innovations. The current product line includes: RAID over File System (RAID-F) Transparent RAID (tRAID).
freeNAS is an operating system that can be installed on virtually any hardware platform to share computer data storage over a computer network.
Rockstor is a free and open source NAS(Network Attached Storage) solution. It's a software solution and can be installed on any hardware or a virtual machine satisfying these minimum requirements.
nas4free The NAS4Free operating system can be installed on virtually any hardware platform to share computer data storage over a computer network.
Xpenology is the name of a Linux boot image, which allows to run operating system Sinology DSM on almost any hardware (not just Synology).
owncloud is a self-hosted file sync and share server.
openFiler provides a simple way to deploy and manage networked storage.
openATTIC openATTIC combines open source storage tools in such a way that their entire functionality can be managed through a central interface. Carefully matched components ensure both stability and security. Its open interface enables you to integrate openATTIC to provisioning, monitoring and backup systems.
= Cameras =
iSpy is the world’s most popular open source video surveillance application.
ZoneMinder is intended for use in single or multi-camera video security applications.
motioneyeOS is a Linux distribution that turns your single board computer into a video surveillance system.
Blue Iris is security camera manager. It's not free (60$ for the full version) but it was highly recommended and there doesn't seem to be any comparable free alternatives.
= Documentation =
DokuWiki is a simple to use and highly versatile Open Source wiki software that doesn't require a database.
gollum is a simple, Git-powered wiki with a sweet API and local frontend.
BookStack is a simple, self-hosted, easy-to-use platform for organising and storing information.
phpIPAM is an open-source web IP address management application (IPAM).
Paperwork aims to be an open-source, self-hosted alternative to services like Evernote ®, Microsoft OneNote ® or Google Keep ®.
afraid Free DNS Hosting, Dynamic DNS Hosting, Static DNS Hosting, subdomain and domain hosting.
No-IP's mission is to provide useful, reliable and powerful services that help home users, small and large businesses and even fortune 500 companies take control over all aspects of their DNS and domain services.
xapi-back is a simple backup tool for XenServer or XCP – xen hypervisors using xapi toolstack. xapi-back is a command line tool with simple and clear interface (command + options). Tool is written in python.
There is a huge surge in devices attached to the internet, known as the Internet of Things, and it is estimated that over 80 Billion devices will be connected to the internet by 2025, from industrial machines to devices in our home. The constant hacking and cyber attacks have increased not only the demand but the necessity of secure solutions. Our privacy and digital footprint are at risk. [b]Some examples where encryption plays a role: [b]Secure messaging - To make messages truly secure we need a process whereby a cryptography can be applied to encrypt transaction. [b]Secure calling - Secure calling is a process whereby the caller and the recipient of the call are identified and linked via a blockchain enabled cryptocurrency transfer, again creating public and private encryption keys making the call truly private. [b]Secure media storage - To safely and securely store media a process is required where 1.) Access to the media is encrypted via public and private keys of the person wanting to store the media. 2.) The media itself needs to be encrypted with a set of encryption keys and 3.) Media storage costs need to be paid via cryptocurrency [b]Secure browsing - To browse the internet securely we need to create a process of verification whereby nodes on the blockchain can verify websites as “safe”. Furthermore, the entire process needs to be encrypted as well. [b]Verification - This is one of the most important uses of a blockchain, we can verify websites as in the example above but also various other things such as identity, title and ownership, date stamps and source of products as with the verification of the source of agricultural or other products. These are just a few examples. All of this data needs to be encrypted as well. [b]“Smart home” security - Wi-Fi is often used for remote monitoring and control. Home devices, when remotely monitored and controlled via the Internet, are an important constituent of the Internet of Things - all needing encryption, otherwise, hackers paradise. [b]EOT in the future - The examples we mentioned above are only “scratching the surface” of where these technologies are applicable and who knows what will be invented in future. Google, Apple and Uber are all testing cars that drive themselves. A major issue with this technology is again the security aspect and the need to protect against hacking and who want’s to get into a spaceship to Mars that might be hacked or hijacked by ransomware? So the future for the [b]“Encryption of Things” – EOT, looks very interesting indeed and the role of crypto currencies in this will be major. Read the full white paper here - http://eottoken.com/index.php/whitepape The first device using EOT Coin is the BitVault®[/b] - the World's first crypto communicator and blockchain phone. The BitVault is a revolutionary new product that is built around security and privacy enabled through Blockchain technology. Biometric Security enabled through fingerprint and iris scan. Iris patterns are unique to you and are virtually impossible to replicate. This means that iris authentication is one of the safest ways to keep your BitVault locked and the contents private. Proven Biometric technology brings a whole new level of security to your crypto currency and blockchain transactions. Creating Military grade security for your device through third party independent Multilayer security. September 2017 – Swiss Bank in Your Pocket integrates EOT Wallet(Achived) October 2017 – BitVault®, the world’s first blockchain phone launches in London with integration of EOT for secure calling, secure messaging and secure browsing (First batch shipped) November 2017 – BitVault® Global App Store launches for developers to develop their own applications (Achived) November 2017 – Website EOT Payment Gateway for WordPress and WooCommerce (ACHIVED) December 2017 – Cryptodoc stores all your documents securely and encrypted on your PC December 2017 – Password Wallet stores all your passwords for applications and websites encrypted on your PC January 2018 – Smart Router for secure, encrypted internet which is direct, safe and easy January 2018 – EOT Camera, an Encryption of Things connected camera February 2018 – EOT Development Kit for hardware devices EOT payment gateway live on swissbankinyourpocket.com, Now you can buy SBIYP and BitVault using EOT coins More on the BitVault here:- https://swissbankinyourpocket.com/bitvault/]https://swissbankinyourpocket.com/bitvault/https://swissbankinyourpocket.com/bitvault-apps/]https://swissbankinyourpocket.com/bitvault-apps/https://bitcointalk.org/index.php?topic=2152534.0]https://bitcointalk.org/index.php?topic=2152534.0 JOIN US ON REDDIT : http://www.reddit.com/EncryptionOfThings]www.reddit.com/EncryptionOfThings JOIN US ON SLACK : [url=https://join.slack.com/t/eot-coin/shared_invite/enQtMjc3NzkxNzY5NzQ0LTFjMWI5NTJjOGEzYjU5ZDk0ZjRjZWE3MzBkNmI0MmQ2NTUzMTBkOGQ1YmEyNTllMmNiYzA3MGZjOGVmY2IyZGU The EOT Token is trading on the Waves Platform, TOKENS are 1:1 image of EOT coins, EOT coins can be converted to tokens and vice versa using gateway service in SBIYP hardware wallet. if you do not have that hardware wallet, you can contact members on slack who have purchased SBIYP to do that swap for you. TOKEN DETAILS Name : EOT Token (Verified) Identifier : GdnNbe6E3txF63gv3rxhpfxytTJtG7ZYyHAvWWrrEbK5 Total supply : 100,000,000 EOT token (EOT) markets added on the Tidex Exchange https://tidex.com/exchange/eot/btchttps://tidex.com/exchange/eot/waves EOT Coin details (currently minable) https://github.com/EmbeddedDownloads/EOTCoin windows wallet[/b] https://github.com/EmbeddedDownloads/EOTCoin/releases/download/v18.104.22.168/EOTCoin-win.exe windows Desktop wallet[/b] https://github.com/EmbeddedDownloads/EOT-Coin-Windows-Desktop-Wallet/releases/download/1.0/EOTCoinDesktopWallet1-0.zip MAC Wallet [/b] https://github.com/EmbeddedDownloads/EOTCoin/releases/download/v22.214.171.124/EOTCOIN-Qt-OSX-v1001.dmg WEB wallet [/b] http://eot.digital (Closing, please withdraw your coins) ANDROID wallet [/b] https://github.com/EmbeddedDownloads/EOTAndroidWallet/releases Block Explorer [/b] http://www.eot.digital:3622/ Block Explorer 2 [/b] http://www.eotcoin.info (created by [b]@Luanptit[/b]) [Block reward [/b] 100 Coins, [b] ALGORITHM [/b] SCRYPT, [b] BLOCK TIME [/b] 90 seconds MINING POOLS Official mining pool [/b] http://www.eot.digital:3001/ Getting Started [/b] minerd -a scrypt -o stratum+tcp://www.eot.digital:3256 -u WalletAddressWhereYouWantYourMiningCoins -p 1 unofficial Mining pools http://www.altminer.net http://antminepool.com http://coinminers.net/ http://www.vivocryptopool.com [red]Currently EOT is traded on WAVES DEX, Crypto-Bridge DEX and TIDEX. Big exchanges will be available soon, exchanges are in comkmunication. Opportunities are available with EOT - from Development, Mining, Trading as well as other business opportunities built around the EOT currency and the "Encryption of Things" [size=34px]Bitvault on Yahoo Finance https://finance.yahoo.com/news/bitvault-worlds-first-blockchain-phone-201600279.html [/size] [center][img width=770]https://i.imgur.com/UMIlRoC.png[/img][/center] [center][size=30px]Press release 4th October 2017 [/size] [size=30px]yahoo Finance https://finance.yahoo.com/news/bitvault-announces-london-launch-161000826.html?soc_src=community&soc_trk=tw [img]https://i.imgur.com/mBDZnN7.png[/img] Some Helpful Information [quote author=Story777 link=topic=2091616.msg21890405#msg21890405 date=1505551168] You have been keeping a great secret. I've been doing a bit of research with the technology behind this coin. It looks like ALOT of research has gone into this tech, since about 2004 and shortly after a patent for this P2P system was quickly issued. Bitvault (https://swissbankinyourpocket.com/product/bitvault/) who are using the worlds first blockchain phone as a secure communication device and ultimately taking [font=Verdana][b]encryption[/b][/font] to the Internet Of Things (IoT) keeping our personal and business data secure. All this is done using [b]EOT coin [/b](Encryption of Things). In todays world insecure devices are rampant. Here are a couple of links about the CIA being able to use insecure devices to 'cause accidents' http://www.sandiegouniontribune.com/news/cyber-life/sd-me-wikileaks-cia-20170307-story.html and https://www.washingtonpost.com/news/innovations/wp/2017/03/08/what-we-know-about-car-hacking-the-cia-and-those-wikileaks-claims/ It's scary to think a legal entity could posses such power over life. Just the mere fact alone the governing authority can request phone records (e.g. txt msgs, voice msgs or eavesdropping) proves most if not all telecommunication companies do not encrypt, otherwise whats the point on requesting the information!? (legal or not). Commercially sensitive information needs to be protected and most importantly in my opinion our [font=Verdana][b]rights[/b][/font] and the privacy of all citizens of the human race need to be protected. From my understanding BitVault is a platform for reference data. This would be data that is stored for compliance reasons such as e-mails, invoicing systems and check imaging (e.g. high quality imaging for x-rays, MRI scans etc) and a prototype was developed in 2004. This would means massive amount of data storage is required with fail-safe systems so a authorised user could access this information very very quickly. Three goals were needed to be achieved: Low cost, high reliability/availability and simplicity. This is the birth of Bitvault via EOT. Bitvault ultimately stores immutable objects with each new version being updated and identified with a 160-bit key. System stability is very important and must be immune to failure sequences. Parallel repair via indexing is one of the many strengths Bitvault has been able to demonstrate. BitVault is a back-end system that uses [u][b]Applications[/b][/u] to catalog object ID's. Using a catalog utility and indexing within an application prevented scalability bottlenecking under heavy loads. Fast forward 3 years to 2007 a very important decision was to [u][b]decentralise[/b][/u] BitVaults system. This in my opinion is one of the fundamental principles of cryptocurrency - [u][b]No one entity or person has any control of the data stored and only the authorised user can access this info[/b][/u]. Ultimate Security and thus personal safety (see above articles CIA hacks). BitVault using applications have been able to use provable communication and data storage with ease of retrieval with vital security measures. BitVault is not alone in researching solutions for security for the IoT, such as Venti and the like are making progress, however, BitVault is 'head and shoulders' above the few competitors and are already offering practical working solutions on the market with huge scalability that is cost effective. Well Done BitVault, well done EOT your secret is out and let the world embrace. author=Story777 link=topic=2091616.msg21462424#msg21462424 date=1504428317] I have had a response in Slack and it has satisfied my questions. Thank-you. For everyone information here it is: The currency was created with 200 Million EOT total supply on 7 July 2017 [ we showed it to the community a London Fintech week with the demonstration of the BitVault - fintechweek.com ] 100 Million was pre-mined and another 100 Million are currently being mined, 1 block every 90 seconds @ 100 coins per block. So the pre-mined coins were listed on waves as a token so that it can create a market for the coins while we are working to get listed on other exchanges. The 100 Million coins listed were distributed in several ways. Firstly, this was not an ICO because our business is already funded via private capital. We wanted to get the currency distributed a widely as possible. So most of the initial coins were given away to a number of interested parties. We distributed this to our whole development team, business partners, employees as well as to the waves and other communities. So we did not sell all these coins for the current price, most of it was given away for free to people that have an interest in our products and business. The price now is formed by whoever owns these coins. The tokens on the exchange is really a representation of the currency and as such has value because it can be interchanged, just like Bitcoin and Ethereum are on the waves exchange. This whole process is explained on page 4 of the waves whitepaper, I think they call it an asset-to-asset exchange which makes it possible to list any asset that exist on waves. Unfortunately waves only has gateways currently for Bitcoin, Ethereum, Waves, Euro and USD, so we have to develop our own gateway, which will be available on Nov 1. So to clarify 100,000,000 tokens costing $190M were not sold. It is a combination of airdrops, private sales and sales on the exchange. Some EOT coins are needed because: "A lot of EOT will be distributed through our devices. For example our encrypted routers are pre-loaded with EOT, so we need that stock and it will be distributed that way". And with the response to tokens on the Waves Exchange "This is how Bitcoin works on waves: - They created 21 Million BTC Tokens.. When you deposit Bitcoin into waves account, you receive an equal amount of tokens which you can either trade or even sent via the waves blockchain to another user.. Once you withdraw your tokens are exchanged for BTC and you receive it back into your BTC wallet.. Exactly the same for USD or EUR - You don't send Euro's to another client on waves if you transfer - you send a token that represents EUR -- This works exactly the w0083". These are the answers I was looking for and make a lot of sense now. This is indeed an exciting project. :) It's time to trade.... Now I have one question left.... Is there anyone using NiceHash to mine this coin?? I keep being disconnected because of the difficulty being too low. Can any one help? [quote author=Shews link=topic=2091616.msg22876983#msg22876983 date=1507755312] EOT (coin) is now tradable on the CryptoBridge Decentralised Exchange, you can sign up below. Please note this is for the EOT COIN ONLY, do not send tokens to this dex. This is a secure means to trade with the backend being on a blockchain. It is still in beta stage but has been working flawlessly so far. If you'd like more info I will post their website link is below. https://wallet.crypto-bridge.org/?r=388691 You can sign up with a local wallet mode, meaning you are the only one with access to your keys, this is most secure. There is also the option to sign up with and account if you require access to you funds on the go. More info: https://crypto-bridge.org/
It also contains the public and private key for each of your bitcoin addresses. Your bitcoin private key is a randomly generated string (numbers and letters), allowing bitcoins to be spent. A private key is always mathematically related to the bitcoin wallet address, but is impossible to reverse engineer thanks to a strong encryption code base. If you don’t back up your private key and you ... This page describes the algorithm used for encrypting the wallet.dat file used in the original Bitcoin client. Wallet encryption uses AES-256-CBC to encrypt only the private keys that are held in a wallet. The keys are encrypted with a master key which is entirely random. This master key is then encrypted with AES-256-CBC with a key derived from the passphrase using SHA-512 and OpenSSL's EVP ... Whenever keying material (unencrypted private keys, the user's passphrase, the wallet's AES key) is stored unencrypted in memory, any reasonable attempt is made to mlock/VirtualLock that memory before storing the keying material. This is not true in several (commented) cases where mlock/VirtualLocking the memory is not possible. Although encryption of private keys in memory can be very useful ... Importing private key text to your Bitcoin.com wallet. This is how to import using the copy-to-clipboard method. If you receive an email on your device with your exported wallet, or choose "Copy to clipboard", on most devices you can press the screen and wait for a “Paste” button to appear, then paste the backup code in to the field. From the Home screen, tap "Create new wallet" or (if you ... A private key in the context of Bitcoin is a secret number that allows bitcoins to be spent. Every Bitcoin wallet contains one or more private keys, which are saved in the wallet file. The private keys are mathematically related to all Bitcoin addresses generated for the wallet. Because the private key is the "ticket" that allows someone to spend bitcoins, it is important that these are kept ...
How to Generate Private Key from a Bitcoin watch only address 2020
In 5 minutes watch how a public and private key pair are created. This helps you understand the way Bitcoin software wallets work. Created as part of the Bes... In this tutorial we are going to get our private keys from the bitcoin core wallet. This only works when you created the bitcoin address in the same wallet. ... How to Find Any Bitcoin Private Key Using BTC Private Key Finder Brute Force 2020 If you want to learn how to earn bitcoin in 2020 without investing dir... How to Generate Private Key from a Bitcoin watch only address 2020 We help you generate bitcoin private key for non spendable funds. online bitcoin private key generator private key finder and ... bitcoin private key encryption bitcoin public key electrum bitcoin private key encoding bitcoin private key explained bitcoin key finder version 1.5 bitcoin key features bitcoin key file bitcoin ...