mysql aes密钥大于16位_加密的AES密钥太大,无法通过RSA(Java)解密

我正在尝试制作一个程序,该程序使用AES加密数据,然后使用RSA加密AES密钥,然后解密.但是,一旦我加密了AES密钥,它就会变成128个字节. RSA仅允许我解密117个字节或更少的字节,因此当我解密AES密钥时,它将引发错误.

相关代码：

KeyPairGenerator kpg = KeyPairGenerator.getInstance("RSA");

kpg.initialize(1024);

KeyPair kpa = kpg.genKeyPair();

pubKey = kpa.getPublic();

privKey = kpa.getPrivate();

updateText("Private Key: " +privKey +"

Public Key: " +pubKey);

updateText("Encrypting " +infile);

//Genereate aes key

KeyGenerator kgen = KeyGenerator.getInstance("AES");

kgen.init(128); // 192/256

SecretKey aeskey = kgen.generateKey();

byte[] raw = aeskey.getEncoded();

SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");

updateText("Encrypting data with AES");

//encrypt data with AES key

Cipher aesCipher = Cipher.getInstance("AES");

aesCipher.init(Cipher.ENCRYPT_MODE, skeySpec);

SealedObject aesEncryptedData = new SealedObject(infile, aesCipher);

updateText("Encrypting AES key with RSA");

//encrypt AES key with RSA

Cipher cipher = Cipher.getInstance("RSA");

cipher.init(Cipher.ENCRYPT_MODE, pubKey);

byte[] encryptedAesKey = cipher.doFinal(raw);

updateText("Decrypting AES key with RSA. Encrypted AES key length: " +encryptedAesKey.length);

//decrypt AES key with RSA

Cipher decipher = Cipher.getInstance("RSA");

decipher.init(Cipher.DECRYPT_MODE, privKey);

byte[] decryptedRaw = decipher.doFinal(encryptedAesKey); //error thrown here because encryptedAesKey is 128 bytes

SecretKeySpec decryptedSecKey = new SecretKeySpec(decryptedRaw, "AES");

updateText("Decrypting data with AES");

//decrypt data with AES key

Cipher decipherAES = Cipher.getInstance("AES");

decipherAES.init(Cipher.DECRYPT_MODE, decryptedSecKey);

String decryptedText = (String) aesEncryptedData.getObject(decipherAES);

updateText("Decrypted Text: " +decryptedText);

关于如何解决这个问题的任何想法？