AlgorithmParameters implGetParameters() {
AlgorithmParameters params = null;
if (salt == null) {
// Cipher is not initialized with parameters;
// follow the recommendation in PKCS12 v1.0
// section B.4 to generate salt and iCount.
salt = new byte[DEFAULT_SALT_LENGTH];
SunJCE.getRandom().nextBytes(salt);
iCount = DEFAULT_COUNT;
}
PBEParameterSpec pbeSpec = new PBEParameterSpec(salt, iCount);
try {
params = AlgorithmParameters.getInstance(pbeAlgo, SunJCE.getInstance());
params.init(pbeSpec);
} catch (NoSuchAlgorithmException nsae) {
// should never happen
throw new RuntimeException("SunJCE provider is not configured properly");
} catch (InvalidParameterSpecException ipse) {
// should never happen
throw new RuntimeException("PBEParameterSpec not supported");
}
return params;
}
