Questions tagged [mnemonic-seed]

Mostly BIP39, an open standard for encoding a seed as a series of common words, but also collects other methodologies.

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9
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1answer
853 views

Will Electrum mnemonic seeds be forward compatible with all future versions of Electrum?

If I use the newest version of Electrum (2.6.4) to create a mnemonic seed and the current source code (2.6.4) later becomes unavailable, will I be still able to use a mnemonic seed I create now with ...
9
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1answer
4k views

Is the Electrum seed compatible with other wallets?

Apologies if this is a simple question - a newbie here! I'm trying to understand backups. If I use Electrum to make a back up (including the 12 word seed password), will I then need to use Electrum to ...
8
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2answers
5k views

Pros/Cons/Limitations of Mnemonic Phrases - BIP39

BIP39 mnemonic phrases replace considerations about how to store one private key, with considerations about how to store the seed to a series of private keys. The idea is that the private keys are ...
7
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7answers
3k views

Practical way to split a bip39 seed into a 2 out of 3 factor auth?

I want to keep off-site paper-backups of my seed, but that increases the risk of a physical attack. Can I somehow split my Mnemonic Code into three parts that I only need two of to recover my trezor?
7
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3answers
4k views

How to restore wallet from 15-word seed mnemonic?

The wallet was created around Feb 2013, using unknown wallet software. All that is known is a passprase, and 15 words. I suspect the passphrase was used to encrypt the wallet, and is probably ...
6
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1answer
3k views

Recovering a HD wallet from a partial seed phrase

I am attempting to help recover a wallet where the owner only wrote down 11 of the 12 words in the seed phrase. Initially, I thought the task would be a quick and well-defined, but it appears to be a ...
5
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4answers
2k views

Does BIP39 mnemonic construction avoid repeating words?

Will all 24 words of a seed-phrase be unique by specification? Or is it possible for a word to occupy two positions (ie the word "tool" is #8 AND #20 in a valid, securely generated seed)
5
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1answer
987 views

Is there a reason to why Bitcoin Core does not implement BIP39?

Is there a specific reason to why BIP39 isn't added to Bitcoin Core? Seems very trivial to add and am confused to why it isn't there.
5
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1answer
4k views

How to generate specific private keys from 12-word backup and wallet address?

A single seed can lead to billions of addresses. Some wallets are unable to scan and find all used addresses. Is it a way to infer the private key from 12-word backup and wallet ID / (public key). ...
4
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1answer
144 views

What is 'birthday' in the context of BIP39 / Lightning seed generation?

In this talk about Lightning Network, roasbeef speaks about BIP39 as having no support for 'birthdays'. What does that mean? https://www.youtube.com/watch?v=LXY0L8eeG3k minute 22
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1answer
617 views

In HD Wallet recovery how does the wallets know which addresses to recover

I have been reading the BIP32 proposal explaining how HD works but it didn't mention on any point how one wallet in one phone can recover from a simple mnemonic seed. Does it just try all possible ...
4
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1answer
1k views

Manually extracting ledger nano s wallet public / private keys using “Mnemonic Code Converter” from ledger

I have the following example seed: morning twist board pelican denial retire middle inherit evil ritual omit fade general toddler grace evoke recipe sad minor destroy public dawn scissors cube ...
4
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1answer
70 views

Are there any HD Bitcoin mobile wallets with the mnemonic seed in traditional Chinese?

If not, what would be the easiest way to modify an open source iOS/Android wallet (eg copay) to do this?
3
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1answer
1k views

Bruteforce bitcoin address - I know the words + public address but not the order

I have a long list of 1million+ permutations of a 12 word BIP39 seed. How can I try them all on a bitcoin address? edit: I know the address and the 12 words but i don't know the order of the words
3
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4answers
2k views

Electrum 2.0: non-BIP39/32 standardisation complicates matters immensely. Why?

Electrum 2.0 has been causing me some frustration, insofar as it seems to be a non-standard implementation of BIP32/BIP39 (HD wallets, mnemonic seed, respectively). The wallet in question is a 2of2 ...
3
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1answer
2k views

What is a mnemonic frequency analysis and why do I only need 4 letters of my seed words?

Cryptosteel only allows to store the first 4 letters of each word of my mnemonic seed, the FAQ tells me why: [...] you only need to assemble the first 4 letters of each word. Those 4 letters are ...
3
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1answer
1k views

Why are Electrum 2.x mnemonic sentences thirteen words long?

The 2.x version of Electrum uses mnemonic sentences that are 13 words long. However, 1.x versions use a sentence only 12 words long. I realize that 2.x changed the derivation of key pairs ...
3
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1answer
2k views

BIP39 Manual Phrase Calculations - How are Multiple checksums valid?

Need some help understanding the math regarding why multiple checksums work for mnemonic phrase generation (BIP39). Let's assume a 12 word passphrase. If we divide the 2048 wordlist into groups of 16 ...
3
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1answer
143 views

Mnemonic seed language options

How many languages are mnemonic seeds currently offered in other than English? Does the entropy for different languages depend on the number of words the relevant dictionary has available to draw ...
3
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1answer
187 views

Python library for Multisignature HD wallets

Is there is any python library is available that allow creation of Multisignature HD wallets ?
2
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2answers
1k views

How can I generate a Bitcoin address from a 12 word seed without using a computer?

I have a 12 word seed and I want to generate an address without exposing it to any computers. How can I accomplish this?
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2answers
1k views

How can I retrieve the mnemonic words from my bitcoin core wallet?

I studied with Aaron Jaramillo's Libbitcoin tutorial. And I have a question regarding mnenonic word. In that tutorial, I should use testnet for making raw transaction. And I should make wallet from ...
2
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2answers
626 views

Is it safe to store a sha256 hash of my BIP39 seed on the blockchain?

According to https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki a 12 word BIP39 passphrase has entropy of 128 bits. My reason for doing so is that when I want check if I memorized my ...
2
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1answer
2k views

How do HD wallets use mnemonic to recover all private keys?

As I understand, a wallet like BRD wallet can have many private keys and receiving addresses. When I give them the mnemonic, how do they re-generate all of the relevant private keys from that ...
2
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2answers
103 views

Are BIP39 mnemonics generated with a French list compatible with software that expects English words?

BIP39 specifies different word lists in different languages. But I wonder if the word list generated by a software that gives me French words (e.g. Copay on iOS) can be used to re-create the same ...
2
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1answer
759 views

Importing 24 word mnemonic to bitcoin-qt

How can I import my 24 word mnemonic seed into bitcoin-qt? I think that I will have to convert it to some other format but I don't know how to do that nor what format to use. BIP 39 does not work.
2
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1answer
1k views

Why is this 12-word mnemonic deemed invalid by multiple wallets?

I have a 12-word mnemonic from a Blockchain.info wallet created in May 2013. But now the Blockchain recovery page[1] tells me this is an invalid seed. I'm sure this is not user error, since the ...
2
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1answer
2k views

How to generate mycelium addresses from the 12 words in python

I am trying to re-generate the receiving addresses (and change addresses, for that matter) my mycelium wallet has generated. So far I've used trezor's implementation of BIP39 to generate the entropy ...
2
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1answer
180 views

Is mnemonic words -> mnemonic sentence standardized?

I was reading the BIP 39, and noticed that it does not refer to how the mnemonic sentence, used for seed calculation, is composed from mnemonic words. This is actually troublesome because in case of ...
2
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1answer
582 views

Do I understand correctly that mnemonic seeds are specific to individual wallet software and its versions?

I know mnemonic passphrases are used to derive a master key that can then be used to procedurally generate your addresses. If you lose everything except the mnemonic, you can regenerate everything and ...
2
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1answer
562 views

Ramifications of creating Electrum 2.x seeds which are not BIP39

Electrum 2.0 seeds (mnemonic phrases) are created with a checksum based algorithm (such that the hmac_sha512 starts with 01. It's usually a 13 word seed, but can be 12 in some circumstances. If all ...
2
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1answer
63 views

What prevent a smartphone wallet from downloading my keys

Wallet software use variant technologies to protect and hide our private keys like mnemonic or simply using the private keys. What would prevent them from making a patch to their software that will ...
2
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1answer
95 views

Calculate mnemonic code from terminal

I want to replicate mnemonic code with terminal. the steps are: Create a random sequence (entropy) of 128 to 256 bits. Create a checksum of the random sequence by taking the first (entropy- length/32)...
2
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1answer
308 views

How does `bitcoind` generate the private key?

My question is how the bitcoin core client generates a (master) private key(s)? I know from other wallets, that they take the mnemonic and generate a HD wallet master key. With the master key, the ...
2
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1answer
65 views

How can I access the mnemonic in the mobile copay wallet?

I was encourage to download copay in my phone so that someone could give me 0.001 BTC. In that process I did not write down the 12 words. Is there a way to access them in the app? Thanks.
2
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1answer
478 views

Mnemonic seed BIP 39 HD wallet with vanity address

Can we create a mnemonic seed BIP 39 HD wallet with vanity address for LITECOIN, if yes, how?
2
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1answer
528 views

Does bitcoind (as of 0.15) support BIP39 mnemonic phrase for wallets?

Can bitcoind print out a BIP39 seed phrase to backup the wallet? Can I import a BIP39 seed phrase (from, for example, Breadwallet on iOS)into bitcoind? I know bitcoind wallets have been BIP32 format ...
2
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2answers
1k views

BIP44 generation tool has Account xpubkey & bip32 xpubkey, what's the difference?

recently i played with the tool generation of HD address on https://iancoleman.github.io/bip39/. after input mnemonic code and check the derivation path, why is there Account Extended Public Key & ...
2
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2answers
3k views

Generate private key from a bip-39 seed phrase?

I'm able to generate a new private key and associated public addresses using bitcoin-core, but what I really want to do is generate a new private key from a 24 word seed phrase. I'm not sure how to go ...
2
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3answers
490 views

What is the secure, self-hosted wallet to redeem BTG (Bitcoin Gold)?

Hacking and being hacked is not cool I'm looking for a decent solution to redeem BTG. Ideally self-hosted and open source. I have 12 words seed phrase, BIP39, deterministic derivation path, etc... ...
2
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1answer
745 views

BTG wallet or exchange with BIP39 seed import

Can anyone recommend a Bitcoin Gold exchange or SPV wallet for Linux that supports importing wallets from a BIP39 seed? The best I’ve found so far is a fork of Electrum that supports BTG for Windows ...
2
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0answers
358 views

How can I recover last word of BIP-32/39 mnemonic copay second signature multisig wallet

I've got a multisig 2of2 wallet in copay. I've one wallet correct but have lost second wallet and only have 11 of the 12 words of the seed.I'm pretty sure I miss the last one. I've got some of the ...
2
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2answers
106 views

Automate Bip39 seed recovery

I recently was locked out of my Ledger NanoS when I forgot the pin code. Upon trying to reset from my recovery phrase I realized that I only have 23 of the 24 required words (not sure how it happened ...
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1answer
109 views

Why was giving someone else my 12 word backup a bad idea?

I lost my bitcoin last night when someone on blockchain support asked me to tell them my 12 word backup in order to reverse my bitcoin transaction that was unconfirmed at that time. Finally, my ...
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2answers
219 views

How convert a mnemonic phrase back and forth between different number of words?

I'm relatively new to cryptocurrencies in general and I've tried using Bitcoin and a few altcoins, but it always bothers me that some digital assets are not available in all wallets. To my ...
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1answer
176 views

Why seed from BIP39 mnemonic phrase is much longer than entropy?

BIP39 converts mnemonic "zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo zoo wrong" to the fairly long seed "...
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1answer
142 views

How does BIP 39 mnemonic work?

As I already understood the mnemonics are the private key separated in 12 words which joined together in the very same order produces the private key. How are mnemonics generated? Why Ledger ...
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1answer
383 views

Can a BIP39 12-word mnemonic be used to restore a wallet through bitcoin-cli?

I could not find documentation on using a 12-word BIP39 Mnemonic to restore a wallet through bitcoin-cli. It seems that importprivkey might be the right RPC call but when I provide the 12 words, it ...
1
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1answer
952 views

How many combinations are there from the BIP32 mnemonic list?

As I understand for BIP32. There are 2048 words. 12 words would give you 2048^12 combinations. However, not all combinations are valid because of the checksum, so how do i calculate the actual space?...
1
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1answer
435 views

Mnemonic Phrase (BIP39) with Existing Seed Generating Library

The standard BIP39 does three things: 1) Generate 256+8 entropy 2) Generate sentence 3) Derive seed from sentence (using PBKDF2 with HMAC-SHA512). I wonder what would be the security implication ...