Research
slips
Research | slips | |
---|---|---|
16 | 90 | |
112 | 1,451 | |
2.7% | 1.3% | |
8.7 | 9.0 | |
6 days ago | 4 days ago | |
Mathematica | Markdown | |
GNU General Public License v3.0 or later | Creative Commons Attribution Share Alike 4.0 |
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Research
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Trouble verifying QR Codes
To verify UR:CRYPTO-HDKEY - https://github.com/BlockchainCommons/Research/blob/master/papers/bcr-2020-007-hdkey.md
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Tyoe of Shamir's Secret Sharing used in Ledger Recover?
I am very sure it won't be. Trezor and Keystone use SLIP-49 which has some shortcomings which were improved upon by SSKR.
- Shamir's Secret Sharing
- Can ledger create something like Shamir backup, where users can manage the shards by themselves?
- Introducing Ledger Recover & Answering Your Questions
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Isn't a strong bip-39 passphrase enough?
SSKR is an improvement on SLIP-39. SSKR comes with a seedtoolcli. Tezor hardware wallets use SLIP-39 if you have one of those.
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SSSSS - Non-native Shamir Backup for seed phrases
SLIP-0039 is not is not round-trip compatible with BIP-0039. SSKR / BCR-0011 is based on SLIP-0039 but improves upon it by adding this compatibility.
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Thoughts on Shamir's Secret Sharing?
BCR-0011 aka Sharded Secret Key Reconstruction (SSKR)
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Splitting BIP-0039 Mnemonic
Please see the discussion here: https://www.reddit.com/r/ledgerwallet/comments/ibkls4/does_ledger_have_plans_to_implement_shamir_secret/ Maybe ask here if the Ledger developers nicely if they still plan to implement Shamir's Secret Sharing, If Ledger do not implement Shamir's Secret Sharing (e.g. SSKR) then maybe consider purchasing a Trezor which implements SLIP-39. Bear in mind that SLIP-39 is not round-trip compatible with BIP-39.
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Getting MultiSig Protection with a Single Hardware Wallet - Could be a better solution.... For personal vault
Or use a single hardware wallet that implements a version of Shamir Secret Sharing (SSS) e.g. SSKR and store your steel share backups in multiple locations.
slips
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As XRP Toolkit doesn't support Trezor, is there an alternative way to use SetRegularKey on my Trezor to be able to register for the Evernode Airdrop via Xumm?
The official SLIP-0039 standard itself confirms it is not possible to convert this mnemonic type to BIP-0039. Down in Section 9 "Compatibility with BIP-039":
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Shamir Secret Sharing
For anybody new or returning to SSS, check out SLIP-0039: https://github.com/satoshilabs/slips/blob/master/slip-0039.m...
One of the big downsides of SSS is that it’s very raw and you have to do a lot of legwork to make it actually useable. It’s rightfully criticized for this and the argument follows the don’t roll your own crypto vein.
SLIP39 solves this by formalizing a protocol for handling SSS splits built atop standards for crypto key serialization (BIP-39). SlIP shards are unique on each generation so parties with the same underlying SSS shard can’t compare mnemonics, they’re mnemonically serialized, and have a checksum and group index metadata which makes a more sane UX possible when combining.
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Trezor-T XMR Account Recovery (do not use, sample only)
Well every wallet chose to solve this problem independently. Trezor proposed a new standard called SLIP10 to do BIP44 type operations coins that did not use secp256k1. Problem is, there are very few utilities I've found that will do SLIP10 derivations.
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Seed Conversion Woes
Checkout the SLIPs repo (https://github.com/satoshilabs/slips.git) and modify testvectors.py. We are going to replace the curvenames and last four show_testvectors lines with the following:
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Reminder: Trezor Shamir Backup is fundamentally secure
They use an open source algorithm which is documented here. Anyone can verify it and the recovery outside of a Trezor hw-wallet is possible if required.
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Article explaining how Ledger Recover works
It will be using SLIP-39, like Trezor and Electrum, or a Ledger rewrite of it. All the language about shards is straight from the SLIP39 spec.
- Is it possible to have both BTC and XMR keys stored on the same Trezor at the same time?
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Simple sample script to dump Trezor Coinjoin taproot addresses
This was all done with the SLIP-14 seed using the passphrase coinjoin if you want to follow along.
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Simple sample script to dump coinjoin taproot addresses
With the introduction of the new Coinjoin feature in the latest release of firmware and software, I had the need to dump some of my taproot derivations. Although blockbook can do this fine using descriptors in place of xpubs for taproot accounts, it fails on Coinjoin accounts. This is likely because SLIP-25 as 6 deep derivations while BIP-86 uses a standard derivation depth of 5.
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coinjoin funds accessible to other wallets?
The recovery of Coinjoin accounts is described here. Accessing them outside of Trezor Suite will 100% destroy all privacy obtained since Suite is the only keeper of the anonymity set for each UTXO. Using your CJ coins outside of Suite may also erode the privacy of previous transactions using your Suite Private coins as well.
What are some alternatives?
seedtool-cli - Cryptographic Seed Tool for the command line
bip39 - A web tool for converting BIP39 mnemonic codes
bitcoinbook - Mastering Bitcoin 3rd Edition - Programming the Open Blockchain
shamir39 - Split BIP39 mnemonics using Shamir's Secret Sharing Scheme
KeystoneQRVerifier - Keystone QRCodes Decoder
python-shamir-mnemonic
bc-sskr - Sharded Secret Key Reconstruction (SSKR) reference library in C
slip39 - A web tool for SLIP39 mnemonic shares
seedsigner - Use an air-gapped Raspberry Pi Zero to sign for Bitcoin transactions! (and do other cool stuff)
bips - Bitcoin Improvement Proposals
SSSSS - SSSSS
python-mnemonic - :snake: Mnemonic code for generating deterministic keys, BIP39