banana_split
slips
banana_split | slips | |
---|---|---|
4 | 90 | |
259 | 1,450 | |
1.9% | 1.2% | |
0.0 | 9.0 | |
3 months ago | 1 day ago | |
TypeScript | Markdown | |
GNU General Public License v3.0 only | Creative Commons Attribution Share Alike 4.0 |
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banana_split
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Shamir Secret Sharing
If you want to check out the sources yourself before using, of course those are available under GPL at https://github.com/paritytech/banana_split/
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What GF should I use when it comes to secret sharing? And why?
Most secret sharing projects use 8-bit values in GF(28) / GF(256), with 0x1B / 29 decimal as the galois polynomial bitpattern. (That's the same one used by AES) The https://github.com/grempe/secrets.js library is widely used. See http://passguardian.com/ -- https://iancoleman.io/shamir/ -- https://bs.parity.io/
- Safe place for store keys? safe from robbers and from natural disasters. Any suggestion?
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Daily General Discussion December 29 2020
Parity made a little tool for splitting files: https://github.com/paritytech/banana_split
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?
aioli - Framework for building fast genomics web tools with WebAssembly and WebWorkers
bip39 - A web tool for converting BIP39 mnemonic codes
web-component - A Web Component Framework
shamir39 - Split BIP39 mnemonics using Shamir's Secret Sharing Scheme
wasm-multi-party-ecdsa - Full WASM Secure Threshold Signature ECDSA Library
python-shamir-mnemonic
ThresholdJS - An implementation of Shamir's Secret Sharing algorithm for Bitcoin private keys (256-bit integers)
bips - Bitcoin Improvement Proposals
shamir - 🔑 Split and combine secrets using Shamir's Secret Sharing algorithm
slip39 - A web tool for SLIP39 mnemonic shares
python-mnemonic - :snake: Mnemonic code for generating deterministic keys, BIP39