Examples of AlgorithmParameterSpec

java.security.spec.AlgorithmParameterSpec
A (transparent) specification of cryptographic parameters.
This interface contains no methods or constants. Its only purpose is to group (and provide type safety for) all parameter specifications. All parameter specifications must implement this interface. @author Jan Luehe @version 1.15, 11/17/05 @see java.security.AlgorithmParameters @see DSAParameterSpec @since 1.2

Examples of java.security.spec.AlgorithmParameterSpec

        try
        {
            Cipher cipher = Cipher.getInstance( "DES/CBC/NoPadding" );
            SecretKey key = new SecretKeySpec( keyBytes, "DES" );


            AlgorithmParameterSpec paramSpec = new IvParameterSpec( iv );


            if ( isEncrypt )
            {
                cipher.init( Cipher.ENCRYPT_MODE, key, paramSpec );
            }

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Examples of java.security.spec.AlgorithmParameterSpec

      KeySpec keySpec = new PBEKeySpec(passPhrase.toCharArray(), this.salt, this.iterationCount);
      SecretKey key = SecretKeyFactory.getInstance("PBEWithMD5AndDES").generateSecret(keySpec);
      this.ecipher = Cipher.getInstance(key.getAlgorithm());
      this.dcipher = Cipher.getInstance(key.getAlgorithm());
      // Prepare the parameter to the ciphers
      AlgorithmParameterSpec paramSpec = new PBEParameterSpec(this.salt, this.iterationCount);
      // Create the ciphers
      this.ecipher.init(Cipher.ENCRYPT_MODE, key, paramSpec);
      this.dcipher.init(Cipher.DECRYPT_MODE, key, paramSpec);
    } catch (InvalidAlgorithmParameterException e) {
    } catch (InvalidKeySpecException e) {

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Examples of java.security.spec.AlgorithmParameterSpec


    public void marshalParams(XMLStructure parent, XMLCryptoContext context)
        throws MarshalException {


  super.marshalParams(parent, context);
  AlgorithmParameterSpec spec = getParameterSpec();
  if (spec == null) {
      return;
  }


  String prefix =

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Examples of java.security.spec.AlgorithmParameterSpec


    msg = "initialize(AlgorithmParameterSpec) MUST succeed";
    try
      {
        AlgorithmParameters ap = AlgorithmParameters.getInstance("DSA", fp);
        AlgorithmParameterSpec spec =
            ap.getParameterSpec(DSAParameterSpec.class);
        kpg.initialize(spec);
        harness.check(true, msg);
      }
    catch (Exception x)
      {
        harness.debug(x);
        harness.fail(msg);
      }


    msg = "initialize(AlgorithmParameterSpec, SecureRandom) MUST succeed";
    try
      {
        AlgorithmParameters ap = AlgorithmParameters.getInstance("DSA", fp);
        AlgorithmParameterSpec spec =
            ap.getParameterSpec(DSAParameterSpec.class);
        kpg.initialize(spec, rnd);
        harness.check(true, msg);
      }
    catch (Exception x)

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Examples of java.security.spec.AlgorithmParameterSpec

        macName = (String) it.next();
        // we dont provide OMAC based on NullCipher through the JCE. skip
        if (macName.equals("omac-null"))
          continue;


        AlgorithmParameterSpec params = null;
        if (macName.equalsIgnoreCase("UMAC32"))
          {
            byte[] nonce = new byte[16];
            for (int i = 0; i < nonce.length; i++)
              nonce[i] = (byte) i;

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Examples of java.security.spec.AlgorithmParameterSpec

        if (macName.startsWith(Registry.OMAC_PREFIX))
          continue;


        try
          {
            AlgorithmParameterSpec params = null;
            if (macName.equalsIgnoreCase("UMAC32"))
              {
                byte[] nonce = new byte[16];
                for (int i = 0; i < nonce.length; i++)
                  nonce[i] = (byte) i;

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Examples of java.security.spec.AlgorithmParameterSpec

        byte[] ciphertext = cipher.doFinal(plaintext);


        iv = null;


        AlgorithmParameters ap = cipher.getParameters();
        AlgorithmParameterSpec backupAlg = ap.getParameterSpec(IvParameterSpec.class);
        String msg = "(CBC Decrypt + null AlgorithmParameterSpec) init(3) MUST throw InvalidAlgorithmParameterException";
        try
          {
            // Should not be able to init a CBC cipher in DECRYPT opmode without
            // params

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Examples of java.security.spec.AlgorithmParameterSpec

            final String CipherAlgorithmMode = "CBC";
            final String CipherAlgorithmPadding = "PKCS5Padding";
            final String CryptoTransformation = CipherAlgorithmName + "/" + CipherAlgorithmMode + "/" + CipherAlgorithmPadding;
            SecretKeySpec ky = new SecretKeySpec(key, CipherAlgorithmName);
            byte []iv=new byte[16];
            AlgorithmParameterSpec aps = new IvParameterSpec(iv);
            Cipher cf = Cipher.getInstance(CryptoTransformation);
            if(encrypt)
                cf.init(Cipher.ENCRYPT_MODE, ky, aps);
            else
                cf.init(Cipher.DECRYPT_MODE, ky, aps);

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Examples of java.security.spec.AlgorithmParameterSpec

                    cf.init(Cipher.ENCRYPT_MODE, ky);
                else
                    cf.init(Cipher.DECRYPT_MODE, ky);
            }else{
                byte []iv=new byte[16];
                AlgorithmParameterSpec aps = new IvParameterSpec(iv);
                if(encrypt)
                    cf.init(Cipher.ENCRYPT_MODE, ky, aps);
                else
                    cf.init(Cipher.DECRYPT_MODE, ky, aps);
            }

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Examples of java.security.spec.AlgorithmParameterSpec


    public void marshalParams(XMLStructure parent, XMLCryptoContext context)
        throws MarshalException {


  super.marshalParams(parent, context);
  AlgorithmParameterSpec spec = getParameterSpec();
  if (spec == null) {
      return;
  }


  String prefix =

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