添加sm2加密工具类

know_sub_common/pom.xml

@@ -87,6 +87,11 @@
             <artifactId>hutool-all</artifactId>
         </dependency>
 
+        <dependency>
+            <groupId>org.bouncycastle</groupId>
+            <artifactId>bcprov-jdk15on</artifactId>
+        </dependency>
+
     </dependencies>
 
     <build>

know_sub_common/src/main/java/com/supervision/knowsub/util/SM2Util.java

@@ -0,0 +1,97 @@
+package com.supervision.knowsub.util;
+
+import cn.hutool.core.codec.Base64;
+import cn.hutool.core.io.resource.ResourceUtil;
+import cn.hutool.core.util.HexUtil;
+import cn.hutool.crypto.SecureUtil;
+import cn.hutool.crypto.asymmetric.KeyType;
+import cn.hutool.crypto.asymmetric.SM2;
+
+import java.security.KeyPair;
+import java.security.PrivateKey;
+import java.security.PublicKey;
+
+public class SM2Util {
+
+
+    private static SM2 sm2 = getSM2();
+
+    /**
+     * 生成密钥; 测试使用，实际使用中请保存到文件中，或者数据库中
+     */
+    public static void generateKey() {
+        KeyPair pair = SecureUtil.generateKeyPair("SM2");
+        PrivateKey privateKey = pair.getPrivate();
+        PublicKey publicKey = pair.getPublic();
+
+        System.out.println("private:"+Base64.encode(privateKey.getEncoded()));
+        System.out.println("public:"+Base64.encode(publicKey.getEncoded()));
+
+    }
+
+    /**
+     * 验证签名
+     * @param content 需要被验证的内容
+     * @param sign 签名
+     * @return true：验证通过，false：验证失败
+     */
+    public static boolean verify(String content,String sign){
+
+        return sm2.verifyHex(HexUtil.encodeHexStr(content), sign);
+    }
+
+    /**
+     * 加密字符串
+     * @param content 需要签名的内容
+     * @return 加密后的密文 base64编码
+     */
+    public static String encryptBase64(String content){
+
+        return sm2.encryptBase64(content,KeyType.PublicKey);
+    }
+
+    /**
+     * 对密文进行解密
+     * @param data 密文
+     * @return
+     */
+    public static String decrypt(String data){
+
+        return sm2.decryptStr(data, KeyType.PrivateKey);
+    }
+
+
+    /**
+     * 签名
+     * @param content 需要签名的内容
+     * @return 签名字符串 结果固定为142位
+     */
+    public static String sign(String content){
+        return sm2.signHex(HexUtil.encodeHexStr(content));
+    }
+
+    public static SM2 getSM2(){
+        String privateKey = ResourceUtil.readUtf8Str("sm2_private.key");
+        String publicKey = ResourceUtil.readUtf8Str("sm2_public.key");
+        return new SM2(privateKey, publicKey);
+    }
+
+    public static void main(String[] args) {
+
+        String content = "张三里斯忘我ss  **（）（（##";
+
+        String encryptBase64 = encryptBase64(content);
+        System.out.println("加密结果："+encryptBase64);
+
+        String decrypt = decrypt(encryptBase64);
+        System.out.println("解密结果："+decrypt);
+
+        String sign = sign(content);
+        System.out.println("签名结果："+sign);
+        boolean verify = verify(content, sign);
+        System.out.println("正向验证结果："+verify);
+
+        boolean verify1 = verify("djaoidf", sign);
+        System.out.println("反向验证结果："+verify1);
+    }
+}

know_sub_common/src/main/resources/sm2_private.key

@@ -0,0 +1 @@
+MIGTAgEAMBMGByqGSM49AgEGCCqBHM9VAYItBHkwdwIBAQQgIc/Neoxk2aVlkKS4WyHJQ6NTWRMcaSh7dqAeH7gHKyegCgYIKoEcz1UBgi2hRANCAASSC2D8SWIwi6S2QmAzuiJXwtcTHcPsY/Epd4y6VOy0x5OZ4+hXdAq9KrXtRXJlbho1x8+0Rifr396CChxfYcAN

know_sub_common/src/main/resources/sm2_public.key

@@ -0,0 +1 @@
+MFkwEwYHKoZIzj0CAQYIKoEcz1UBgi0DQgAEkgtg/EliMIuktkJgM7oiV8LXEx3D7GPxKXeMulTstMeTmePoV3QKvSq17UVyZW4aNcfPtEYn69/eggocX2HADQ==

pom.xml

@@ -35,6 +35,7 @@
         <knife4j.version>4.5.0</knife4j.version>
         <lombok.version>1.18.20</lombok.version>
         <poi-ooxml.version>4.1.2</poi-ooxml.version>
+        <org.bouncycastle.bcprov-jdk15on>1.70</org.bouncycastle.bcprov-jdk15on>
         <mysql-connector-java.version>8.0.26</mysql-connector-java.version>
     </properties>
 
@@ -93,7 +94,11 @@
                 <artifactId>poi-ooxml</artifactId>
                 <version>${poi-ooxml.version}</version>
             </dependency>
-
+            <dependency>
+                <groupId>org.bouncycastle</groupId>
+                <artifactId>bcprov-jdk15on</artifactId>
+                <version>${org.bouncycastle.bcprov-jdk15on}</version>
+            </dependency>
         </dependencies>
     </dependencyManagement>