コード例 #1
0
 /**
  * Creates a new instance with the given parameters.
  *
  * @param alg Symmetric algorithm used for encryption/decryption.
  * @param digest Key generation function digest.
  * @param params Key generation function salt and iteration count.
  */
 public PBES1EncryptionScheme(
     final SymmetricAlgorithm alg, final DigestAlgorithm digest, final PBEParameter params) {
   boolean valid = false;
   for (PBES1Algorithm a : PBES1Algorithm.values()) {
     if (a.getDigest().getAlgorithm().equals(digest.getAlgorithm())
         && a.getSpec().getName().equals(alg.getAlgorithm())
         && a.getSpec().getMode().equals(alg.getMode())
         && a.getSpec().getPadding().equals(alg.getPadding())) {
       valid = true;
       break;
     }
   }
   if (!valid) {
     throw new IllegalArgumentException("Invalid digest/cipher combination.");
   }
   setCipher(alg);
   generator = new PBKDF1KeyGenerator(digest, params.getSalt(), params.getIterationCount());
 }
コード例 #2
0
 /**
  * Creates a new instance with the given parameters.
  *
  * @param alg Describes hash/algorithm pair suitable for PBES1 scheme.
  * @param params Key generation function salt and iteration count.
  */
 public PBES1EncryptionScheme(final PBES1Algorithm alg, final PBEParameter params) {
   setCipher(SymmetricAlgorithm.newInstance(alg.getSpec()));
   generator =
       new PBKDF1KeyGenerator(alg.getDigest(), params.getSalt(), params.getIterationCount());
 }