I am not able to execute the below code snippet in the oracle java card simulator . Please help me in identifying the issue. I am getting the error code 1.
public void initHMAC() {
try {
Signature _hmac = Signature.getInstance(MessageDigest.ALG_SHA_256, Signature.SIG_CIPHER_HMAC, Cipher.PAD_NULL, false);
byte[] _key = JCSystem.makeTransientByteArray(32, JCSystem.CLEAR_ON_DESELECT);
byte[] input = {
61, 83, -62, 42, 33, -51, -86, 108, 97, 102, -58, 83, -127, 92, 18, 127,
-15, -8, 84, 49, -10, -25, 47, -121, -72, -2, 61, -62, 11, -7, -86, 80,
-105, -81, 1, -68, -89, 12, -89, -18, -1, -14, -51, 111, 101, -8, -10, 58
};
Util.arrayCopy(input, 0, _key, (short) 0, 32);
if (_algorithm == Signature.ALG_HMAC_SHA_256) {
HMACKey hk = (HMACKey) KeyBuilder.buildKey(KeyBuilder.TYPE_HMAC_TRANSIENT_RESET,KeyBuilder.LENGTH_HMAC_SHA_256_BLOCK_64, false);
hk.setKey(_key, (short)0, (short)32);
_hmac.init(hk, Signature.MODE_SIGN);
} else
//
} catch (Exception e) {
//
}
}