encryption - Java BouncyCastle Cast6Engine (CAST-256) encrypting -


i'm trying implement function receives string , returns encoded values of string in cast-256. following code implement following example on boncycastle official web page (http://www.bouncycastle.org/specifications.html , point 4.1).

import org.bouncycastle.crypto.bufferedblockcipher; import org.bouncycastle.crypto.cryptoexception; import org.bouncycastle.crypto.engines.cast6engine; import org.bouncycastle.crypto.paddings.paddedbufferedblockcipher; import org.bouncycastle.crypto.params.keyparameter; import org.bouncycastle.jce.provider.bouncycastleprovider; import org.bouncycastle.util.encoders.base64;   public class test {      static{         security.addprovider(new bouncycastleprovider());     }      public static final string utf8 = "utf-8";     public static final string key = "clp4j13gada9amrsqsxgj";      public static byte[] encrypt(string inputstring) throws unsupportedencodingexception {         final bufferedblockcipher cipher = new paddedbufferedblockcipher(new cast6engine());         byte[] key = key.getbytes(utf8);         byte[] input = inputstring.getbytes(utf8);         cipher.init(true, new keyparameter(key));          byte[] ciphertext = new byte[cipher.getoutputsize(input.length)];          int outputlen = cipher.processbytes(input, 0, input.length, ciphertext, 0);         try {             cipher.dofinal(ciphertext, outputlen);         } catch (cryptoexception ce) {             system.err.println(ce);            system.exit(1);         }         return ciphertext;     }      public static void main(string[] args) throws unsupportedencodingexception {         final string toencrypt = "hola";         final string encrypted = new string(base64.encode(test(toencrypt)),utf8);         system.out.println(encrypted);     }  } 

but , when run code

quryzmvlbx3ok6ikxwq1ng==

and if encode hola in cast-256 same key ( try here if want http://www.tools4noobs.com/online_tools/encrypt/) should

w5nzsyeya8hupl5v0j29yg==.

what happening? why im getting wront encrypted string?

i'm tired of find on internet , didnt find answer.

bouncy castle uses pkcs #7 padding default, while php's mcrypt (and web site linked) uses 0 padding default. causes different ciphertexts.

please note ecb mode used here not secure use. additionally, hope secret key posted not real key, because it's not secret anymore, encryption useless.


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