// see JCE spec
protected byte[] engineUpdate(byte[] in, int inOfs, int inLen) {
try {
byte[] out = new byte[updateLength(inLen)];
int n = engineUpdate(in, inOfs, inLen, out, 0);
return P11Util.convert(out, 0, n);
} catch (ShortBufferException e) {
// convert since the output length is calculated by updateLength()
throw new ProviderException(e);
}
}
// see JCE spec
protected byte[] engineDoFinal(byte[] in, int inOfs, int inLen)
throws IllegalBlockSizeException, BadPaddingException {
try {
byte[] out = new byte[doFinalLength(inLen)];
int n = engineDoFinal(in, inOfs, inLen, out, 0);
return P11Util.convert(out, 0, n);
} catch (ShortBufferException e) {
// convert since the output length is calculated by doFinalLength()
throw new ProviderException(e);
}
}
// see JCE spec
protected AlgorithmParameters engineGetParameters() {
if (iv == null) {
return null;
}
IvParameterSpec ivSpec = new IvParameterSpec(iv);
try {
AlgorithmParameters params =
AlgorithmParameters.getInstance(keyAlgorithm, P11Util.getSunJceProvider());
params.init(ivSpec);
return params;
} catch (GeneralSecurityException e) {
// NoSuchAlgorithmException, NoSuchProviderException
// InvalidParameterSpecException
throw new ProviderException("Could not encode parameters", e);
}
}