Examples of java.security.MessageDigest.digest()

java.security.MessageDigest.digest()
Completes the hash computation by performing final operations such as padding. The digest is reset after this call is made. @return the array of bytes for the resulting hash value.


        MessageDigest digest=MessageDigest.getInstance("MD5");
        digest.reset();
        digest.update(server.getDesKey().getEncoded());


        String symVersion=new String(digest.digest(), "UTF-8");


        // encrypt and send an initial message to peer
        Cipher cipher=server.getSymEncodingCipher();
        Message msg=new Message();
        msg.setBuffer(cipher.doFinal("hello".getBytes()));

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     * @return the MD5 hashed version of the string
     */
    public static String md5(String source) {
        try {
            MessageDigest md = MessageDigest.getInstance("MD5");
            byte[] bytes = md.digest(source.getBytes());
            return getString(bytes);
        } catch (Exception e) {
            return null;
        }
    }

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     * @return the MD5 hashed version of the string
     */
    public static String sha(String source) {
        try {
            MessageDigest md = MessageDigest.getInstance("SHA");
            byte[] bytes = md.digest(source.getBytes());
            return getString(bytes);
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }

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        MessageDigest digest=MessageDigest.getInstance("MD5");
        digest.reset();
        digest.update(encrypt.getDesKey().getEncoded());


        String symVersion=new String(digest.digest(), "UTF-8");


        Message msg=new Message(null, null, encodedBytes);
        msg.putHeader(ENCRYPT_ID, new ENCRYPT.EncryptHeader(ENCRYPT.EncryptHeader.ENCRYPT, symVersion));
        Event event=new Event(Event.MSG, msg);
        encrypt.up(event);

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        MessageDigest digest=MessageDigest.getInstance("MD5");
        digest.reset();
        digest.update(encrypt2.getDesKey().getEncoded());


        String symVersion=new String(digest.digest());


        Message msg=new Message(null, null, encodedBytes);
        msg.putHeader(ENCRYPT_ID, new ENCRYPT.EncryptHeader(ENCRYPT.EncryptHeader.ENCRYPT, symVersion));
        Event event=new Event(Event.MSG, msg);
        encrypt.up(event);

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        MessageDigest digest=MessageDigest.getInstance("MD5");
        digest.reset();
        digest.update(encrypt.getDesKey().getEncoded());


        String symVersion=new String(digest.digest(), "UTF-8");


        encrypt.keyServer=false;
        Message msg=new Message();
        msg.setBuffer(cipher.doFinal("hello".getBytes()));
        msg.putHeader(ENCRYPT_ID, new EncryptHeader(EncryptHeader.ENCRYPT, symVersion));

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    }
    catch(UnsupportedEncodingException unsupportedEncodingException)
    {
    unsupportedEncodingException.printStackTrace();
    }//end of catch block
    byte raw[] = md.digest(); 
    String hash = (new BASE64Encoder()).encode(raw); 
    return hash; 
  }//end of encrypt(String plaintext)
  public static synchronized Password getInstance()
  {

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      ka.init(privateKey);
      ka.doPhase(publicKey, true);
      byte[] secret = ka.generateSecret();


      MessageDigest sha = MessageDigest.getInstance(DIGEST);
      byte[] hash = sha.digest(secret);
      byte[] symKey = new byte[keySize / 8];
      System.arraycopy(hash, 0, symKey, 0, symKey.length);
      return SymmetricCryptor.getSymmectricCryptor(symKey);
    } catch (NoSuchAlgorithmException e) {
      throw new CryptoException(e);

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        try {
            MessageDigest md = MessageDigest.getInstance("SHA");


            //Create the encrypted Byte[]
            md.update( password.getBytes() );
            byte[] hash = md.digest();


            //Convert the byte array into a String


            StringBuffer hashStringBuf = new StringBuffer();
            String byteString;

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         sha1Sun.update( raw );
         
         buffer.clear();
        }
        
        byte[] sun = sha1Sun.digest();
        sha1Sun.reset();
        
        byte[] gudy = sha1Gudy.digest();
        sha1Gudy.reset();

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