javax.crypto.badpaddingexception：使用RSA和BASE64编码解密时解密错误

Question

我有以下程序来加密和解密数据。

import org.apache.commons.codec.binary.Base64;

import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;
import javax.inject.Inject;
import java.security.*;


public class EncryptionUtil {

    static final String SECRET_ALGO = "RSA";
    static final String CIPHER_TOKENIZER_TRANSFORMER = "RSA/ECB/PKCS1Padding";
    static final int KEY_SIZE = 1024;

    KeyPairGenerator keyPairGen;
    KeyPair pair;
    Cipher cipher;

    @Inject
    public EncryptionUtil(){
        try{
            keyPairGen = KeyPairGenerator.getInstance(SECRET_ALGO);
            keyPairGen.initialize(KEY_SIZE);
            pair = keyPairGen.generateKeyPair();
            cipher = Cipher.getInstance(CIPHER_TOKENIZER_TRANSFORMER);
        }catch (NoSuchPaddingException | NoSuchAlgorithmException e) {
            throw new IllegalStateException("Cannot Build Encryption Utils with given params");
        }
    }

    public String decrypt(String encrypted) {
        try {
            cipher.init(Cipher.DECRYPT_MODE, pair.getPrivate());
            return new String(cipher.doFinal(new Base64().decode(encrypted.getBytes())));
        } catch (BadPaddingException | IllegalBlockSizeException | InvalidKeyException e) {
            throw new FiveXXServiceException(e.getMessage(), ErrorCode.DECRYPTION_EXCEPTION);
        }
    }

    public String encrypt(String text) {
        try {
            cipher.init(Cipher.ENCRYPT_MODE, pair.getPublic());
            return new String(new Base64().encode(cipher.doFinal(text.getBytes())));
        } catch (BadPaddingException | IllegalBlockSizeException | InvalidKeyException e) {
            throw new FiveXXServiceException(e.getMessage(), ErrorCode.ENCRYPTION_EXCEPTION);
        }
    }

}

在这里，我在解密我尝试过的不同语法的数据时得到以下例外，

javax.crypto.BadPaddingException: Decryption error

但没有任何效果。 知道我在这里做错了什么吗？