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import java.security.Security;
import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
public class MainClass {
public static void main(String[] args) throws Exception {
Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());
byte[] input = "input".getBytes();
byte[] keyBytes = "input123".getBytes();
SecretKeySpec key = new SecretKeySpec(keyBytes, "ARC4");
Cipher cipher = Cipher.getInstance("ARC4", "BC");
byte[] cipherText = new byte[input.length];
cipher.init(Cipher.ENCRYPT_MODE, key);
int ctLength = cipher.update(input, 0, input.length, cipherText, 0);
ctLength += cipher.doFinal(cipherText, ctLength);
System.out.println("cipher text: " + new String(cipherText));
byte[] plainText = new byte[ctLength];
cipher.init(Cipher.DECRYPT_MODE, key);
int ptLength = cipher.update(cipherText, 0, ctLength, plainText, 0);
ptLength += cipher.doFinal(plainText, ptLength);
System.out.println("plain text : " + new String(plainText));
}
}
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