BIP32, 39 and 44: differences between the most used seeds ...
bitcoin_bip32 Dart Package
BIP39 - Mnemonic Code
BIP 0032 - Bitcoin Wiki
OuiCoin is a Proof of Stake cryptocurrency based on Bitcoin Core, including advancements such as BIP32 HD wallet addresses, dual key Stealth addresses, once-only transaction broadcasting, address index, and an advanced and friendly user interface.
Are all possible BIP39 mnemonic seeds produce a valid BIP32 master private key, which produce valid Bitcoin private keys?
The question is provoked by the fact that not all 256-bit numbers are valid private keys. To be valid it must be from 0x1 to 0xFFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFE BAAE DCE6 AF48 A03B BFD2 5E8C D036 4140. Is it possible that some randomly chosen (with dice, for example) mnemonic seed is not valid, because it produces not valid private keys? Is there a protection for this? I know that Electrum can be configured to accept a random list of words (user-generated) and to ignore the incorrect checksum. What is the risk something to go wrong by using manually selected words (selected with dice and "Bip39-diceware" for example)? Edit: I looked through the documentation (BIP32) briefly and looks like I found the answer:
In case parse256(IL) ≥ n or ki = 0, the resulting key is invalid, and one should proceed with the next value for i. (Note: this has probability lower than 1 in 2127.)
So, it looks like there is a protection envisioned by the developers. Whew. Edit 2: Actually, no.
In practice, this will never happen (the probability is so small we can ignore it), and likely implementations don't even bother checking the condition.
This is scary. Edit 3: I tested Electrum. See "I successfully imported invalid Bitcoin private key! #5797" on the Github page. Edit 4: It's not a bug, it's a feature. SomberNight said on Github:
Effectively, with what we are doing, some group elements have two representations; while most only have one. Your "invalid" key contains a number that is too large to be a group element; but we subtract the group order from it and use that number instead. It's as if you imported the "valid" key in the first place. In fact if you try to export it, we will give you the "valid" one.
Can I import my own BIP32 wallet into Bitcoin Core?
Let's say that I've created my own BIP32 extended private and public key. Can import these (or only the extended public key in order to create a watch only wallet) into Bitcoin Core? I understand that Bitcoin Core now uses BIP32 behind the scenes to generate new addresses. Or am I forced to only using HD wallets created in Bitcoin Core, alternatively importing separate private keys?
Does anyone know of a decent Bitcoin Cash wallet for Android or Linux that supports import of arbitrary BIP32 nodes? Bitcoin.com wallet seems pretty good about most things but is lacking this extremely important feautre.
Beiträge über BIP32 von Christoph Bergmann. Bitcoin macht es einfach, ein Backup von Geld zu machen. Wir erklären, wie man mit einer Passphrase Bitcoins speichert, tauchen ein bißchen tiefer in die Technik der hierarchischen deterministischen Wallets ein und bilden, um ganz sicher zu gehen, eine Passphrase offline und mit Hilfe von Würfeln. Client-side Bitcoin and other cryptocurrency address and deterministic wallets generator bitcoin address generator Toggle navigation BIP32 Generator (Alpha!) The Bitcoin reference client uses randomly generated keys. In order to avoid the necessity for a backup after every transaction, (by default) 100 keys are cached in a pool of reserve keys. Still, these wallets are not intended to be shared and used on several systems simultaneously. They support hiding their private keys by using the wallet encrypt feature and not sharing the password, but ... Secondly, the extended BIP32 key and its Master Key will be shown, which can be used to retrieve a wallet using Electrum, for example. How is this possible? To understand how a passphrase works you need some basic knowledge about bitcoin storage. When a user receives bitcoins, they are associated with a certain address. This address is a derivation of the public key, which in turn is a ... The BIP32 derivation path and extended keys are the basis for the derived addresses. BIP32 Derivation Path. For more info see the BIP32 spec. Client. BIP32 Derivation Path. Use hardened addresses. Bitcoin Core. Use path m/0'/0' with hardened addresses. For more info see the Bitcoin Core BIP32 implementation. Multibit. Use path m/0'/0. For more info see MultiBit HD. Block Explorers. Use path m ...
Bitcoin: Gerador de Seeds feito em NodeJS (BIP-32 e BIP-39)
This is part 29 of the Blockchain tutorial. In this video series different topics will be explained which will help you to understand blockchain. It is recom... CoinSutra - Simplifying Bitcoin & Cryptocurrency 38,858 views 5:20 Blockchain tutorial 28: Bitcoin Improvement Proposal 39 (BIP-39) mnemonic words - Duration: 17:45. Bitcoin, Ethereum xpub address balance checker (bip32-bip39, bip44) - (p2pkh, p2sh) ... (bip32: blame menu damp zone gospel elbow decline help capital place insane letter) Pay: https://satoshidisk ... Single-Coin Wallets, z.B. das Bitcoin Core Wallet, verwenden meist nur BIP32, also eine lange Zeichenkette. Grundlagen: Die 24 Wörter Mnemonic (Wortliste mit 2048 Wörter) oder der BIP39 Standard ... Continuation of bitcoin python series, this time I'm generating master extended private (xprv) and master extended public (xpub) keys using python3. I am going through the implementation of BIP32 ...