How to Retrieve My Wallet Password

Tech Support
#1

I cant remember my nano wallet password or Private key. Although i have the .wlt file how do I retrieve my details

#2

Without password you have no access to your wallet and the password cannot be retrieved.

#3

You could try brute force the password if you at least remember some letters and the length of the password. But this could last for eternity if you had a long password.

#4

I’m in the same situation I’ve been looking at the source code some. Could we try to build a password guess program that we could feed our custom word list? This looks to be where it decrypts the file.

	/**
 * Reads a block of blob from data to the specified encrypted file.
 *
 * @param fileName The file to which to write.
 * @return The data.
 */
public byte[] readFrom(final String fileName) {
	return ExceptionUtils.propagate(
			() -> this.readFromInternal(fileName),
			ex -> new StorageException(String.format("reading from '%s' failed", fileName), ex));
}

private byte[] readFromInternal(final String fileName) throws IOException {
	FileMust.exist(fileName); // TODO: this doesn't belong here

	final PaddedBufferedBlockCipher cipher = this.getCipher(false);
	try (final InputStream inputStream = new FileInputStream(fileName)) {
		try (final CipherInputStream cis = new CipherInputStream(inputStream, cipher)) {
			return IOUtils.toByteArray(cis);
		}
	}
}

private PaddedBufferedBlockCipher getCipher(final boolean encrypt) {
	byte[] hash = Hashes.sha3_256(StringEncoder.getBytes(this.password));
	for (int i = 0; i < this.numHashes - 1; ++i) {
		hash = Hashes.sha3_256(hash);
	}

	final KeyParameter key = new KeyParameter(hash);

	// create and initialize the cipher
	final PaddedBufferedBlockCipher resultCipher = new PaddedBufferedBlockCipher(new CBCBlockCipher(new AESEngine()));
	final ParametersWithIV parameterIV = new ParametersWithIV(key, new byte[BLOCK_SIZE]);
	resultCipher.init(encrypt, parameterIV);
	return resultCipher;
}

}