我正在尝试开发一个简单的加密/解密程序。我遇到的问题是当我尝试解密加密的消息时，我收到一条错误消息，指出使用密码解密时输入长度必须是 16 的倍数。我在某处读到加密消息可能需要在将其转换为字符串之前进行编码。我不知道该怎么做？或者，如果有另一种方法，有人可以帮助我吗？
import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException;
import java.security.Key;
import java.security.NoSuchAlgorithmException;
import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.KeyGenerator;
import javax.crypto.NoSuchPaddingException;
public class Cryption {
public static void cryption(String[] args, String message) throws NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException, IllegalBlockSizeException, BadPaddingException, InvalidAlgorithmParameterException {
byte[] encodedKey = "ADBSJHJS12547896".getBytes();
KeyGenerator keyGen = KeyGenerator.getInstance("AES");
Key aesKey = keyGen.generateKey();
System.out.println("CheckType: "+ Global.checkType);
Cipher cipher = Cipher.getInstance("AES");
cipher.init(Cipher.ENCRYPT_MODE, aesKey);
byte[] input = Global.message.getBytes();
// Check if clicked Encrypted
if(Global.checkType==true) {
// Encrypt
byte[] messageEncrypted = cipher.doFinal(input);
System.out.println("Encrypted Text: " + messageEncrypted);
Global.encValue = messageEncrypted.toString();
}
// Check if clicked Decrypted
if(Global.checkType==false) {
//String mes = message;
System.out.println(Global.message);
System.out.println("Char lenght " + Global.message.length());
byte[] mesByte = Global.message.getBytes();
// Decrypt
cipher.init(Cipher.DECRYPT_MODE, aesKey);
byte[] messageDecrypted = cipher.doFinal(mesByte);
System.out.println("Text Decrypted: " + new String(messageDecrypted));
}
}
}