Package org.bouncycastle.crypto

Examples of org.bouncycastle.crypto.AsymmetricBlockCipher.processBlock()


        throws CryptoException
    {

        AsymmetricBlockCipher engine = createRSAImpl();
        engine.init(true, new ParametersWithRandom(privateKey, this.context.getSecureRandom()));
        return engine.processBlock(md5AndSha1, 0, md5AndSha1.length);
    }

    public boolean verifyRawSignature(byte[] sigBytes, AsymmetricKeyParameter publicKey, byte[] md5AndSha1)
        throws CryptoException
    {
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        throws CryptoException
    {

        AsymmetricBlockCipher engine = createRSAImpl();
        engine.init(false, publicKey);
        byte[] signed = engine.processBlock(sigBytes, 0, sigBytes.length);
        return Arrays.constantTimeAreEqual(signed, md5AndSha1);
    }

    public Signer createSigner(AsymmetricKeyParameter privateKey)
    {
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  private String generate() throws Exception{
    RSAKeyParameters pubParameters = new RSAKeyParameters(false, mod, exp);
    AsymmetricBlockCipher eng = new PKCS1Encoding(new RSAEngine());
    eng.init(true, pubParameters);
    byte[] data = Base16.fromHexString(this.sessionKey);
    data = eng.processBlock(data, 0, data.length);
    return Base16.toHexString(data);
  }

  public void generateSessionKey() throws Exception{
    byte[] sessionBytes = new byte[SimmetricProvider.cipherKeySize];
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            byte[]  input = new byte[]
                { (byte)0x54, (byte)0x85, (byte)0x9b, (byte)0x34, (byte)0x2c, (byte)0x49, (byte)0xea, (byte)0x2a };
   
            try
            {
                out = cipher.processBlock(input, 0, input.length);
            }
            catch (Exception e)
            {
                return new SimpleTestResult(false, getName() + ": exception - " + e.toString());
            }
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            }
   
            cipher.init(false, privParameters);
            try
            {
                out = cipher.processBlock(output, 0, output.length);
            }
            catch (Exception e)
            {
                return new SimpleTestResult(false, getName() + ": exception - " + e.toString());
            }
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        eng.init(true, pubParameters);

        try
        {
            data = eng.processBlock(data, 0, data.length);
        }
        catch (Exception e)
        {
            return new SimpleTestResult(false, "RSA: failed - exception " + e.toString());
        }
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        eng.init(false, privParameters);

        try
        {
            data = eng.processBlock(data, 0, data.length);
        }
        catch (Exception e)
        {
            return new SimpleTestResult(false, "RSA: failed - exception " + e.toString());
        }
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        eng.init(true, pubParameters);

        try
        {
            data = eng.processBlock(data, 0, data.length);
        }
        catch (Exception e)
        {
            return new SimpleTestResult(false, "RSA: failed - exception " + e.toString());
        }
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        eng.init(false, privParameters);

        try
        {
            data = eng.processBlock(data, 0, data.length);
        }
        catch (Exception e)
        {
            return new SimpleTestResult(false, "RSA: failed - exception " + e.toString());
        }
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        eng.init(true, pubParameters);

        try
        {
            data = eng.processBlock(data, 0, data.length);
        }
        catch (Exception e)
        {
            return new SimpleTestResult(false, "RSA: failed - exception " + e.toString());
        }
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