/**
* @param secret
* @return
*/
public String decrypt(String secret) {
try {
Cipher cipher = Cryptos.getAES(Cipher.ENCRYPT_MODE, keyHash, settings.cryptoKeySize());
return Codecs.toUTF8(cipher.doFinal(Codecs.decodeBase64(secret, false)));
} catch (BadPaddingException | IllegalBlockSizeException ex) {
throw AppeException.wrap(ex);
}
}
/**
* Generate 32 bytes secret
*
* @return
*/
public String randomSecret() {
return Codecs.encodeBase64(PRNG.nextBytes(32), false);
}
/**
* return a hash of a given secret if any.
*
* @param secret
* @return
*/
public String hash(String secret) {
return Codecs.encodeBase64(
Digests.sha2(settings.cryptoHashSalt(), Codecs.toBytes(secret)), false);
}
/** @param settings */
public CredentialsCrypto(AccountSettings settings) {
this.settings = settings;
this.keyHash = Digests.sha2(Codecs.toBytes(settings.cryptoKeySeed()));
}