public SecretBox(byte[] seed) {
checkLength(seed, SEED_LENGTH);
this.seed = seed;
this.secretKey = CryptoUtils.zeros(SECRETKEY_BYTES * 2);
byte[] publicKey = CryptoUtils.zeros(PUBLICKEY_BYTES);
isValid(
sodium().crypto_sign_ed25519_seed_keypair(publicKey, secretKey, seed),
"Failed to generate a key pair");
this.pubKey = Base58.encode(publicKey);
}
public static byte[] computeSeedFromSaltAndPassword(String salt, String password) {
try {
byte[] seed =
SCrypt.scrypt(
CryptoUtils.decodeAscii(password),
CryptoUtils.decodeAscii(salt),
SCRYPT_PARAMS_N,
SCRYPT_PARAMS_r,
SCRYPT_PARAMS_p,
SEED_LENGTH);
return seed;
} catch (GeneralSecurityException e) {
throw new TechnicalException("Unable to salt password, using Scrypt library", e);
}
}
public String sign(String message) {
byte[] messageBinary = CryptoUtils.decodeUTF8(message);
return CryptoUtils.encodeBase64(sign(messageBinary));
}