package com.ltkj.web.controller.api.utils;
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import javax.crypto.Cipher;
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import javax.crypto.spec.SecretKeySpec;
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import java.util.Base64;
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public class CryptoUtil {
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private static final String KEY = "f$9Lz#Q@1vT!eW2%"; // AES密钥（16位）
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private static final String ALGORITHM = "AES";
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// 加密
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public static String encrypt(String plainText) throws Exception {
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SecretKeySpec keySpec = new SecretKeySpec(KEY.getBytes(), ALGORITHM);
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Cipher cipher = Cipher.getInstance(ALGORITHM);
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cipher.init(Cipher.ENCRYPT_MODE, keySpec);
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byte[] encrypted = cipher.doFinal(plainText.getBytes());
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return Base64.getEncoder().encodeToString(encrypted);
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}
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// 解密
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public static String decrypt(String cipherText) throws Exception {
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SecretKeySpec keySpec = new SecretKeySpec(KEY.getBytes(), ALGORITHM);
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Cipher cipher = Cipher.getInstance(ALGORITHM);
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cipher.init(Cipher.DECRYPT_MODE, keySpec);
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byte[] decrypted = cipher.doFinal(Base64.getDecoder().decode(cipherText));
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return new String(decrypted);
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}
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public static void main(String[] args) throws Exception {
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String encrypt = encrypt("{\"card\": \"622722197210102079\",\"name\":\"焦拉民\"}");
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System.out.println("encrypt = " + encrypt);
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String decrypt = decrypt(encrypt);
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System.out.println("decrypt = " + decrypt);
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}
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}
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