Maybe some1 can explain how it works ? bcouse wih my cast5 cipher i can decrypt serverdh packet but can decrypt client dh packet.
but this code cant decrypt client dh packet.
Code:
public byte[] Decrypt(byte[] buffer) {
//System.out.println(Arrays.toString(Security.getProviders()));
cii = Cipher.getInstance("CAST5/CFB64/NoPadding", "BC");
byte[] buff = buffer.clone();
ivs = new IvParameterSpec(" ".getBytes());
byte[] b = cryptkey.getBytes("ASCII");
key = new SecretKeySpec(b, "CAST5");
cii.init(Cipher.DECRYPT_MODE, key,ivs);
buffer = cii.doFinal(buff);
return buffer;
}
