[+]增加国密SM4接口加解密

zt-framework/zt-common/src/main/java/com/zt/plat/framework/common/util/security/CryptoSignatureUtils.java

@@ -1,8 +1,10 @@
 package com.zt.plat.framework.common.util.security;
 
 import cn.hutool.crypto.SecureUtil;
+import cn.hutool.crypto.symmetric.SM4;
 import com.zt.plat.framework.common.util.json.JsonUtils;
-
+import lombok.extern.slf4j.Slf4j;
+import org.bouncycastle.jce.provider.BouncyCastleProvider;
 import javax.crypto.Cipher;
 import javax.crypto.KeyGenerator;
 import javax.crypto.SecretKey;
@@ -10,11 +12,13 @@ import javax.crypto.spec.SecretKeySpec;
 import java.nio.charset.StandardCharsets;
 import java.security.NoSuchAlgorithmException;
 import java.security.SecureRandom;
+import java.security.Security;
 import java.util.*;
 
 /**
  * 通用的签名、加解密工具类
  */
+@Slf4j
 public final class CryptoSignatureUtils {
 
     public static final String ENCRYPT_TYPE_AES = "AES";
@@ -25,6 +29,15 @@ public final class CryptoSignatureUtils {
     private static final String AES_TRANSFORMATION = "AES/ECB/PKCS5Padding";
     public static final String SIGNATURE_FIELD = "signature";
 
+    private static final String CHARSET = "UTF-8";
+
+    //@Value("${sa.encrypt.sm4.key}")
+    private static String SM4_KEY = "1234567890123456";
+
+    static {
+        Security.addProvider(new BouncyCastleProvider());
+    }
+
     private CryptoSignatureUtils() {
     }
 
@@ -215,4 +228,92 @@ public final class CryptoSignatureUtils {
         }
         return sb.toString();
     }
+
+
+//-------------------------------- 国密方式2 -------------------------------------------------------
+
+    /**
+     * 加密
+     */
+    public static String enCode(String data) {
+        try {
+            // 第一步： SM4 加密
+            SM4 sm4 = new SM4(hexToBytes(stringToHex(SM4_KEY)));
+            String encryptHex = sm4.encryptHex(data);
+
+            // 第二步： Base64 编码
+            return new String(Base64.getEncoder().encode(encryptHex.getBytes(CHARSET)), CHARSET);
+
+        } catch (Exception e) {
+            log.error("国密加密失败{}",e.getMessage(),e);
+            System.out.println("加密失败"+e);
+            return "";
+        }
+    }
+
+    /**
+     * 解密
+     */
+    public static String deCode(String data) {
+        try {
+
+            // 第一步： Base64 解码
+            byte[] base64Decode = Base64.getDecoder().decode(data);
+
+            // 第二步： SM4 解密
+            SM4 sm4 = new SM4(hexToBytes(stringToHex(SM4_KEY)));
+            return sm4.decryptStr(new String(base64Decode));
+
+        } catch (Exception e) {
+            log.error("国密解密失败{}",e.getMessage(),e);
+            return "";
+        }
+    }
+
+
+
+    public static String stringToHex(String input) {
+        char[] chars = input.toCharArray();
+        StringBuilder hex = new StringBuilder();
+        for (char c : chars) {
+            hex.append(Integer.toHexString((int) c));
+        }
+        return hex.toString();
+    }
+
+    /**
+     * 16 进制串转字节数组
+     *
+     * @param hex 16进制字符串
+     * @return byte数组
+     */
+    public static byte[] hexToBytes(String hex) {
+        int length = hex.length();
+        byte[] result;
+        if (length % 2 == 1) {
+            length++;
+            result = new byte[(length / 2)];
+            hex = "0" + hex;
+        } else {
+            result = new byte[(length / 2)];
+        }
+        int j = 0;
+        for (int i = 0; i < length; i += 2) {
+            result[j] = hexToByte(hex.substring(i, i + 2));
+            j++;
+        }
+        return result;
+    }
+
+    /**
+     * 16 进制字符转字节
+     *
+     * @param hex 16进制字符 0x00到0xFF
+     * @return byte
+     */
+    private static byte hexToByte(String hex) {
+        return (byte) Integer.parseInt(hex, 16);
+    }
+
+
 }