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23 lines
923 B
23 lines
923 B
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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