Question

We have a .NET application that needs to pass some data over to a Java app. We are wanting to give it some simple encryption, M.C. Hawking wont be hacking in but it needs to not be plain text.

I found some great Java code that lets me encrypt/decrypt using AES. What I am hoping to find is the matching peice of this for C# that will let me Encrypt a string that will be decryptable with my Java routine.

Here is my java class:

class SimpleProtector
{    
   private final String ALGORITHM = "AES";    
   private final byte[] keyValue = new byte[] { 'T', 'h', 'i', 's', 'I', 's', 'A', 'S', 'e', 'c', 'r', 'e', 't', 'K', 'e', 'y' };     
   public String encrypt(String valueToEnc) throws Exception
   {        
      Key key = generateKey();        
      Cipher c = Cipher.getInstance(ALGORITHM);        
      c.init(Cipher.ENCRYPT_MODE, key);        
      byte[] encValue = c.doFinal(valueToEnc.getBytes());        
      String encryptedValue = new BASE64Encoder().encode(encValue);        
      return encryptedValue;
   }    

   public String decrypt(String encryptedValue) throws Exception
   {        
      Key key = generateKey();        
      Cipher c = Cipher.getInstance(ALGORITHM);        
      c.init(Cipher.DECRYPT_MODE, key);        
      byte[] decordedValue = new BASE64Decoder().decodeBuffer(encryptedValue);       
      byte[] decValue = c.doFinal(decordedValue);        
      String decryptedValue = new String(decValue);        
      return decryptedValue;    
   }    

   private Key generateKey() throws Exception
   {        
      Key key = new SecretKeySpec(keyValue, ALGORITHM);        
      return key;    
   }
}

Thanks for any tips!

Answer 1

See answers to this question: Using AES encryption in C#