我想加密整數值。我寫了一個加密字符串值的例子。 在此整數加密,我不想轉換爲字符串整數。Java加密:加密整數值
這是我的字符串加密,
String strDataToEncrypt = new String();
String strCipherText = new String();
String strDecryptedText = new String();
try {
KeyGenerator keyGen = KeyGenerator.getInstance("AES");
keyGen.init(128);
SecretKey secretKey = keyGen.generateKey();
final int AES_KEYLENGTH = 128;
byte[] iv = new byte[AES_KEYLENGTH/8];
SecureRandom prng = new SecureRandom();
prng.nextBytes(iv);
Cipher aesCipherForEncryption = Cipher.getInstance("AES/CBC/PKCS5PADDING");
aesCipherForEncryption.init(Cipher.ENCRYPT_MODE, secretKey, new IvParameterSpec(iv));
strDataToEncrypt = "Hello World of Encryption using AES ";
byte[] byteDataToEncrypt = strDataToEncrypt.getBytes();
byte[] byteCipherText = aesCipherForEncryption.doFinal(byteDataToEncrypt);
strCipherText = new BASE64Encoder().encode(byteCipherText);
System.out.println("Cipher Text generated using AES is " + strCipherText);
Cipher aesCipherForDecryption = Cipher.getInstance("AES/CBC/PKCS5PADDING");
aesCipherForDecryption.init(Cipher.DECRYPT_MODE, secretKey, new IvParameterSpec(iv));
byte[] byteDecryptedText = aesCipherForDecryption.doFinal(byteCipherText);
strDecryptedText = new String(byteDecryptedText);
System.out.println(" Decrypted Text message is " + strDecryptedText);
} catch (NoSuchAlgorithmException noSuchAlgo) {
System.out.println(" No Such Algorithm exists " + noSuchAlgo);
} catch (NoSuchPaddingException noSuchPad) {
System.out.println(" No Such Padding exists " + noSuchPad);
} catch (InvalidKeyException invalidKey) {
System.out.println(" Invalid Key " + invalidKey);
} catch (BadPaddingException badPadding) {
System.out.println(" Bad Padding " + badPadding);
} catch (IllegalBlockSizeException illegalBlockSize) {
System.out.println(" Illegal Block Size " + illegalBlockSize);
} catch (InvalidAlgorithmParameterException invalidParam) {
System.out.println(" Invalid Parameter " + invalidParam);
}
加密值不應該在字符串。它可能在BigInteger或類似的東西。
有什麼想法?
你是什麼意思_」在這個整數加密中,我不想將整數轉換爲字符串。「_?加密結果應該是一個整數? –
所有加密使用字節作爲源數據並返回字節。如果要加密的BigInteger只使用toByteArray()和新的BigInteger(字節[] VAL) – JEY
加密的結果不應該是一個字符串:@SamuelKok – Barrier