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? ??? ?? Golang ???? 128?? ?? ???? Golang?? ???? ?? Java ? Scala?? AES? ???? ???? ??? ??? ? ?????

???? 128?? ?? ???? Golang?? ???? ?? Java ? Scala?? AES? ???? ???? ??? ??? ? ?????

Oct 27, 2024 am 04:05 AM

How can I decrypt AES-encrypted data in Java and Scala, given that the data was encrypted in Golang with a 128-bit key?

Golang? AES ??? ? Java? ?? ??

???? Golang ??? 128?? ?? AES ????? ???? ???? ??????. ? ???? ????? ??? Java ???? ???? ? ?? ?? ???? ??? ? ????.

Java Decoder

<code class="java">String decode(String base64Text, byte[] key) throws InvalidAlgorithmParameterException,NoSuchAlgorithmException, InvalidKeyException, BadPaddingException, IllegalBlockSizeException {
    byte[] inputArr = Base64.getUrlDecoder().decode(base64Text);
    SecretKeySpec skSpec = new SecretKeySpec(key, "AES");
    Cipher cipher = Cipher.getInstance("AES/CFB/NoPadding");
    int blockSize = cipher.getBlockSize();
    IvParameterSpec iv = new IvParameterSpec(Arrays.copyOf(inputArr, blockSize));
    byte[] dataToDecrypt = Arrays.copyOfRange(inputArr, blockSize, inputArr.length);
    cipher.init(Cipher.DECRYPT_MODE, skSpec, iv);
    byte[] result = cipher.doFinal(dataToDecrypt);
    return new String(result, StandardCharsets.UTF_8);
}</code>

Scala Decoder

<code class="scala">def decode(input:String, key:String) = {
    val cipher = Cipher.getInstance("AES/CFB/NoPadding")
    val blockSize = cipher.getBlockSize()
    val keyBytes = key.getBytes()
    val inputArr = Base64.getUrlDecoder().decode(input)
    val skSpec = new SecretKeySpec(keyBytes, "AES")
    val iv = new IvParameterSpec(inputArr.slice(0, blockSize).toArray)
    val dataToDecrypt = inputArr.slice(blockSize, inputArr.size)
    cipher.init(Cipher.DECRYPT_MODE, skSpec, iv)
    new String(cipher.doFinal(dataToDecrypt.toArray))
}</code>

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? ??? ???? 128?? ?? ???? Golang?? ???? ?? Java ? Scala?? AES? ???? ???? ??? ??? ? ?????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!

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