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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11
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10answers
5k 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?
10
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1answer
5k 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 ...
9
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1answer
2k 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.
9
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1answer
932 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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3answers
6k 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 ...
8
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5answers
3k 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)
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 ...
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 ...
6
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1answer
7k 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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4answers
4k views

Am I safe if 16 words in my 24 word seed are leaked?

I use a 24 word seed for my private key. I split the 24 words into 16 words in three pieces of paper, so one needs to have at least two pieces of paper to recover the wallet. However my question is, ...
4
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1answer
414 views

What's the relationship between SLIP39 and BIP39?

Trezor's SLIP39 makes it possible to apply Shamir's secret sharing to a Bitcoin wallet seed. How do SLIP39 and BIP39 relate to each other? I.e. it seems possible to derive SLIP39 from BIP39 words ...
4
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1answer
158 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
4
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2answers
4k 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 ...
4
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1answer
878 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
2k 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
97 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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3answers
143 views

Should the BIP 39 mnemonic sentence checksum be eliminated from the standard? Does it do more harm than good?

Should the BIP 39 checksum be eliminated from the standard? Should the BIP39 checksum be made optional to improve security?
3
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2answers
94 views

Who store seed phrases data

Seed phrases seem to be pretty secure, approximately as strong as bitcoin private key according to this site https://en.bitcoin.it/wiki/Seed_phrase. But who store the private key adresses of these ...
3
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1answer
2k 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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2answers
3k 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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2answers
417 views

Can I “duplicate” a wallet using a backup phrase (12 words)?

My understanding is that a wallet isn't a wallet at all*, it doesn't hold my coins, but its a key store; my coins are of course "stored" as records of the events on the blockchain. Imagine I ...
3
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2answers
397 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 ...
3
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1answer
2k 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?...
3
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1answer
524 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 ...
3
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3answers
5k views

How to generate public and private key pairs from the 12 seed words in python

I basically followed the instructions here How to generate mycelium addresses from the 12 words in python So my code is similar: from bip32utils import BIP32Key from bip32utils import BIP32_HARDEN ...
3
votes
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
171 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
74 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 ...
3
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1answer
72 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.
3
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1answer
233 views

Python library for Multisignature HD wallets

Is there is any python library is available that allow creation of Multisignature HD wallets ?
3
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3answers
358 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 ...
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?
2
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2answers
1k 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 ...
2
votes
1answer
807 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 ...
2
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2answers
2k 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
718 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
95 views

Does mnemonic phrase contain everything in my wallet including future keys?

I am confused about something important ... Most wallets allow wallet recovery using "Mnemonic phrase", but (in general) with this phrase, do I get access to all my data ? E.g future ...
2
votes
1answer
620 views

24 Word Mnemonic Seed Phrase for Ledger Nano S usable on Trezor?

Can I use my 24 word mnemonic backup seed phrase that created on my Ledger Nano S on other devices that use a 24 word seed phrase? An example would be the Trezor hardware wallet.
2
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1answer
3k 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
votes
1answer
526 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 ...
2
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1answer
209 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
148 views

Bitcoin recovery - forgot my 12th recovery word for recovering my crypto account

I have managed to forget the last (12th) mnemonic word to my crypto-account. Could you please show me how I can find software with which I can enter recovery words from a file so that I can attempt ...
2
votes
1answer
928 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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3answers
4k views

16 word recovery phrase for blockchain wallet not working

I downloaded my blockchain wallet but now i forget the password and my recovery phrase is 16 word, so I tried them but they are not working. Can somebody please help me?
2
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1answer
2k 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
3k 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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3answers
812 views

Wallet recovery phrase

Due to a copying error the last word of my 12 word mnemonic recovery phrase for blockchain is missing. Just wondering if anyone knows of any software that could generate words and automatically test ...
2
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1answer
706 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
votes
1answer
621 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 ...