Golang 中的 AES 加密和 Java 中的解密
Java 中解密 AES 加密文本
要解密Golang函数生成的AES加密文本，需要Java实现。下面的 Java 代码演示了解密过程：
<code class="java">public class AESDecryption {
public static String decode(String base64Text, byte[] key) throws Exception {
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);
}
public static void main(String[] args) {
try {
String encryptedText = "c1bpFhxn74yzHQs-vgLcW6E5yL8zJfgceEQgYl0=";
byte[] key = "0123456789abcdef".getBytes();
String decryptedText = decode(encryptedText, key);
System.out.println("Decrypted text: " + decryptedText);
} catch (Exception e) {
e.printStackTrace();
}
}
}</code>这段 Java 代码应该成功解密 Golang 函数生成的加密文本并返回原始明文。
Scala 版本
Scala 版本的解密代码如下：
<code class="scala">object AESDecryption {
def decode(input: String, key: String): 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))
}
def main(args: Array[String]): Unit = {
val encryptedText = "c1bpFhxn74yzHQs-vgLcW6E5yL8zJfgceEQgYl0="
val key = "0123456789abcdef"
val decryptedText = decode(encryptedText, key)
println("Decrypted text: " + decryptedText)
}
}</code>此 Scala 代码还将解密 AES 加密文本并打印明文。
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