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bitshares网页钱包备份解密尝试
const bitsharesjs = require('bitsharesjs');
const PrivateKey = bitsharesjs.PrivateKey;
const PublicKey = bitsharesjs.PublicKey;
const Aes = bitsharesjs.Aes;
const decompress = require('lzma').decompress;
if( process.argv.length != 4 ){
console.error("usage: " + process.argv[1] + " <binfile> <password>");
process.exit(1);
}
const binfilePath = process.argv[2];
const password = process.argv[3];
const fs = require('fs');
// copied from bitshares-ui/web/app/actions/WalletActions.js
function decryptWalletBackup(backup_wif, backup_buffer) {
return new Promise( (resolve, reject) => {
if( ! Buffer.isBuffer(backup_buffer))
backup_buffer = new Buffer(backup_buffer, "binary");
let private_key = PrivateKey.fromWif(backup_wif);
let public_key;
try {
public_key = PublicKey.fromBuffer(backup_buffer.slice(0, 33));
} catch(e) {
console.error(e, e.stack);
throw new Error("Invalid backup file");
}
backup_buffer = backup_buffer.slice(33);
try {
backup_buffer = Aes.decrypt_with_checksum(
private_key, public_key, null/*nonce*/, backup_buffer);
} catch(error) {
console.error("Error decrypting wallet", error, error.stack);
reject("invalid_decryption_key");
return;
}
try {
decompress(backup_buffer, wallet_string => {
try {
let wallet_object = JSON.parse(wallet_string);
resolve(wallet_object);
} catch(error) {
if( ! wallet_string) wallet_string = "";
console.error("Error parsing wallet json",
wallet_string.substring(0,10)+ "...");
reject("Error parsing wallet json");
}
});
} catch(error) {
console.error("Error decompressing wallet", error, error.stack);
reject("Error decompressing wallet");
return;
}
});
}
fs.readFile(binfilePath, function(err, buf){
if( err ){
console.error(`read file error, please ensure the file path
is correct and you have access right.`);
process.exit(1);
}
const privateKey = PrivateKey.fromSeed(password || '');
console.log(privateKey.toWif());
decryptWalletBackup(privateKey.toWif(), buf)
.then( console.log)
.catch( console.error);
});
Owner

pluswave commented May 2, 2017

依赖两个库,bitsharesjs和lzma

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