I am doing an assignment about use blowfish to do encryption & decryption in java.
I had added a provider, and get instance "Blowfish/ECB/NoPadding", but I still get this error when I do the encryption.
Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());
e.g.:
public static byte[] encrypt(byte to_encrypt[], byte strkey[]) {
try {
SecretKeySpec key = new SecretKeySpec(strkey, "Blowfish");
Cipher cipher = Cipher.getInstance("Blowfish/ECB/NoPadding");
cipher.init(Cipher.ENCRYPT_MODE, key);
return cipher.doFinal(to_encrypt); // <=========== error
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
javax.crypto.IllegalBlockSizeException: data not block size aligned at org.bouncycastle2.jce.provider.JCEBlockCipher.engineDoFinal(JCEBlockCipher.java:686) at javax.crypto.Cipher.doFinal(Cipher.java:1171)
Thank you.