国密SM2加密算法

2024-02-24 12:20:15 +08:00 · 2024-02-24 12:20:15 +08:00 · 157ff131c9
parent b6a5c11764
commit 157ff131c9
1 changed files with 84 additions and 0 deletions
--- a/maku-framework/src/main/java/net/maku/framework/security/crypto/Sm2Util.java
+++ b/maku-framework/src/main/java/net/maku/framework/security/crypto/Sm2Util.java
@ -0,0 +1,84 @@
+package net.maku.framework.security.crypto;
+
+import cn.hutool.core.util.HexUtil;
+import cn.hutool.crypto.SecureUtil;
+import cn.hutool.crypto.SmUtil;
+import cn.hutool.crypto.asymmetric.KeyType;
+import cn.hutool.crypto.asymmetric.SM2;
+import org.bouncycastle.jcajce.provider.asymmetric.ec.BCECPrivateKey;
+import org.bouncycastle.jcajce.provider.asymmetric.ec.BCECPublicKey;
+import org.bouncycastle.util.encoders.Hex;
+
+import java.security.KeyPair;
+import java.security.PrivateKey;
+import java.security.PublicKey;
+
+/**
+ * 国密SM2加密算法
+ *
+ * @author 阿沐 babamu@126.com
+ * <a href="https://maku.net">MAKU</a>
+ */
+public class Sm2Util {
+    /**
+     * 公钥
+     */
+    private final static String PUBLIC_KEY = "3059301306072a8648ce3d020106082a811ccf5501822d034200040a302b5e4b961afb3908a4ae191266ac5866be100fc52e3b8dba9707c8620e64ae790ceffc3bfbf262dc098d293dd3e303356cb91b54861c767997799d2f0060";
+    /**
+     * 私钥
+     */
+    private final static String PRIVATE_KEY = "308193020100301306072a8648ce3d020106082a811ccf5501822d047930770201010420d7840173df3d6cd72cad4040dfc7dbfcde539f5b490b54f3cd5c4125544b38aea00a06082a811ccf5501822da144034200040a302b5e4b961afb3908a4ae191266ac5866be100fc52e3b8dba9707c8620e64ae790ceffc3bfbf262dc098d293dd3e303356cb91b54861c767997799d2f0060";
+
+    private final static SM2 sm2;
+
+    static {
+        sm2 = SmUtil.sm2(PRIVATE_KEY, PUBLIC_KEY);
+    }
+
+    /**
+     * 加密
+     *
+     * @param data 明文
+     * @return 加密后的密文
+     */
+    public static String encrypt(String data) {
+        return sm2.encryptBase64(data, KeyType.PublicKey);
+    }
+
+    /**
+     * 解密
+     *
+     * @param data 加密后的密文
+     * @return 解密后的明文
+     */
+    public static String decrypt(String data) {
+        return sm2.decryptStr(data, KeyType.PrivateKey);
+    }
+
+    public static void main(String[] args) {
+        KeyPair keyPair = SecureUtil.generateKeyPair("SM2");
+        System.out.println("privateKey：" + HexUtil.encodeHexStr(keyPair.getPrivate().getEncoded()));
+        System.out.println("publicKey：" + HexUtil.encodeHexStr(keyPair.getPublic().getEncoded()));
+
+        PublicKey publicKey = keyPair.getPublic();
+        if (publicKey instanceof BCECPublicKey) {
+            // 获取65字节非压缩缩的十六进制公钥串(0x04)
+            String publicKeyHex = Hex.toHexString(((BCECPublicKey) publicKey).getQ().getEncoded(false));
+            System.out.println("SM2公钥：" + publicKeyHex);
+        }
+        PrivateKey privateKey = keyPair.getPrivate();
+        if (privateKey instanceof BCECPrivateKey) {
+            // 获取32字节十六进制私钥串
+            String privateKeyHex = ((BCECPrivateKey) privateKey).getD().toString(16);
+            System.out.println("SM2私钥：" + privateKeyHex);
+        }
+
+        String password = "admin";
+        String sm2Password = Sm2Util.encrypt(password);
+        System.out.println("sm2 加密:" + sm2Password);
+        System.out.println("sm2 解密:" + Sm2Util.decrypt(sm2Password));
+
+
+        System.out.println("sm3 解密:" + SmUtil.sm3("admin"));
+    }
+}