24 lines
872 B
JavaScript
24 lines
872 B
JavaScript
import Base58 from './deps/Base58.js'
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import { kdf } from './kdf.js'
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import { HmacSha512, AES_CBC } from 'asmcrypto.js'
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export const decryptStoredWallet = async (password, wallet, statusFn = () => { }) => {
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statusFn('Decoding saved data')
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const encryptedSeedBytes = Base58.decode(wallet.encryptedSeed)
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const iv = Base58.decode(wallet.iv)
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const salt = Base58.decode(wallet.salt)
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statusFn('Generating decryption key')
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const key = await kdf(password, salt, statusFn)
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const encryptionKey = key.slice(0, 32)
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const macKey = key.slice(32, 63)
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statusFn('Checking key')
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const mac = new HmacSha512(macKey).process(encryptedSeedBytes).finish().result
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if (Base58.encode(mac) !== wallet.mac) {
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throw new Error('Incorrect password')
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}
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statusFn('Decrypting')
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const decryptedBytes = AES_CBC.decrypt(encryptedSeedBytes, encryptionKey, false, iv)
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return decryptedBytes
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}
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