@test-xchain/xchain-crypto
v0.2.14
Published
XChain Crypto is a crypto module needed by all XChain clients.
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XCHAIN-CRYPTO
The XCHAIN CRYPTO package is a crypto package used by all XCHAIN
clients.
XCHAIN-CRYPTO encrypts a master phrase to a keystore. This keystore can then be exported to other XCHAIN wallets or stored securely.
Users can export their phrase and import them into other wallets since it is a BIP39 compatible phrase.
Design
Typically keystore files encrypt a seed
to a file, however this is not appropriate or UX friendly, since the phrase cannot be recovered after the fact.
Crypto design:
[entropy] -> [phrase] -> [seed] -> [privateKey] -> [publicKey] -> [address]
Instead, XCHAIN-CRYPTO stores the phrase in a keystore file, then decrypts and passes this phrase to other clients:
[keystore] -> XCHAIN-CRYPTO -> [phrase] -> ChainClient
The ChainClients can then convert this into their respective key-pairs and addresses. Users can also export their phrases after the fact, ensuring they have saved it securely. This could enhance UX onboarding since users aren't forced to write their phrases down immediately for empty or test wallets.
// Crypto Constants for xchain
const cipher = 'aes-128-ctr'
const kdf = 'pbkdf2'
const prf = 'hmac-sha256'
const dklen = 32
const c = 262144
const hashFunction = 'sha256'
const meta = 'xchain-keystore'
Installation
- Install
@test-xchain/xchain-crypto
fromnpm
yarn add @test-xchain/xchain-crypto
Usage
Basic usage
import { generatePhrase, validatePhrase, encryptToKeyStore, decryptFromKeystore } from '../src/crypto'
const phrase = generatePhrase()
const isCorrect = validatePhrase(phrase)
const password = 'thorchain'
const keystore = await encryptToKeyStore(phrase, password)
const phraseDecrypted = await decryptFromKeystore(keystore, password)
Keystore Type
export type Keystore = {
address: string
crypto: {
cipher: string
ciphertext: string
cipherparams: {
iv: string
}
kdf: string
kdfparams: {
prf: string
dklen: number
salt: string
c: number
}
mac: string
}
id: string
version: number
meta: string
}
Error handling
Development
Build
yarn build
Tests
yarn test