From b759f975d2c9c1a8b2a53503965f597bfe327512 Mon Sep 17 00:00:00 2001
From: xieb <vip_xiaobin810@163.com>
Date: Thu, 09 May 2024 15:07:15 +0800
Subject: [PATCH] 国土调查校验码
---
src/main/java/com/dji/sample/territory/utils/SM2SignUtil.java | 140 +++++++++++++++++++++++++++++++++++
src/main/java/com/dji/sample/territory/utils/Sm3Util.java | 58 ++++++++++++++
pom.xml | 13 +++
3 files changed, 211 insertions(+), 0 deletions(-)
diff --git a/pom.xml b/pom.xml
index c2e1d65..f5b0ca8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -276,6 +276,19 @@
<version>28.0</version>
</dependency>
+ <!--sm3加密-->
+ <dependency>
+ <groupId>org.bouncycastle</groupId>
+ <artifactId>bcprov-jdk15on</artifactId>
+ <version>1.70</version>
+ </dependency>
+
+ <dependency>
+ <groupId>org.bouncycastle</groupId>
+ <artifactId>bcpkix-jdk15on</artifactId>
+ <version>1.70</version>
+ </dependency>
+
</dependencies>
diff --git a/src/main/java/com/dji/sample/territory/utils/SM2SignUtil.java b/src/main/java/com/dji/sample/territory/utils/SM2SignUtil.java
new file mode 100644
index 0000000..a5e2b0c
--- /dev/null
+++ b/src/main/java/com/dji/sample/territory/utils/SM2SignUtil.java
@@ -0,0 +1,140 @@
+package com.dji.sample.territory.utils;
+
+import lombok.SneakyThrows;
+import org.bouncycastle.crypto.CipherParameters;
+import org.bouncycastle.crypto.engines.SM2Engine;
+import org.bouncycastle.crypto.params.ECDomainParameters;
+import org.bouncycastle.crypto.params.ECPrivateKeyParameters;
+import org.bouncycastle.crypto.params.ECPublicKeyParameters;
+import org.bouncycastle.crypto.signers.SM2Signer;
+import org.bouncycastle.jce.ECNamedCurveTable;
+import org.bouncycastle.jce.provider.BouncyCastleProvider;
+import org.bouncycastle.jce.spec.ECParameterSpec;
+import org.bouncycastle.math.ec.ECCurve;
+import org.bouncycastle.math.ec.ECPoint;
+import org.bouncycastle.math.ec.FixedPointCombMultiplier;
+
+import java.math.BigInteger;
+import java.security.KeyPair;
+import java.security.KeyPairGenerator;
+import java.security.Security;
+import java.security.spec.ECGenParameterSpec;
+import java.util.Arrays;
+
+/**
+ * @PROJECT_NAME: drone
+ * @DESCRIPTION:
+ * @USER: aix
+ * @DATE: 2024/5/9 10:09
+ */
+public class SM2SignUtil {
+
+ static {
+ Security.addProvider(new BouncyCastleProvider());
+ }
+
+ @SneakyThrows
+ public static ECPrivateKeyParameters getSM2PrivateKey() {
+
+ String privateKeyHex = "23E57DA1E4AB865CCBC325B668762207DEF74345B782237808AE0BABDF26734D";
+
+ // 获取SM2曲线的参数
+ ECParameterSpec ecSpec = ECNamedCurveTable.getParameterSpec("sm2p256v1");
+ ECDomainParameters domainParams = new ECDomainParameters(
+ ecSpec.getCurve(), ecSpec.getG(), ecSpec.getN(), ecSpec.getH(), null);
+
+ // 将十六进制字符串表示的私钥转换为BigInteger
+ BigInteger privateKey = new BigInteger(privateKeyHex, 16);
+
+ // 创建ECPrivateKeyParameters
+ return new ECPrivateKeyParameters(privateKey, domainParams);
+ }
+
+ public static boolean verify(byte[] dataHash, byte[] signature) {
+
+ String publicKeyHex = "044D6061FC08A19D3F32CEAA8CF6679B40500008FD741FC26DE7E50AEBF3A9115D47274437730EADEDAEF0CCC4853C5F0B35B30C6AEA83A5F6FBCA4ABEAC9E3B98";
+
+ // 获取SM2曲线的参数
+ ECParameterSpec ecSpec = ECNamedCurveTable.getParameterSpec("sm2p256v1");
+ ECDomainParameters domainParams = new ECDomainParameters(
+ ecSpec.getCurve(), ecSpec.getG(), ecSpec.getN(), ecSpec.getH(), null);
+ // 解析十六进制公钥
+ // 公钥通常是压缩或未压缩的EC点坐标的十六进制表示
+ // 这里我们假设公钥是未压缩的（65字节，以04开头）
+ byte[] pubKeyBytes = hexStringToByteArray(publicKeyHex);
+ if (pubKeyBytes[0] != 0x04) {
+ throw new IllegalArgumentException("Unsupported public key format, expecting uncompressed point (04 prefix)");
+ }
+ ECPoint q = ecSpec.getCurve().decodePoint(Arrays.copyOfRange(pubKeyBytes, 1, pubKeyBytes.length));
+ ECPublicKeyParameters ecPublicKeyParameters = new ECPublicKeyParameters(q, domainParams);
+
+ // 创建SM2签名验证器
+ SM2Signer verifier = new SM2Signer();
+ verifier.init(false, ecPublicKeyParameters);
+
+ // 更新数据哈希值
+ verifier.update(dataHash, 0, dataHash.length);
+
+ // 验证签名
+ return verifier.verifySignature(signature);
+ }
+
+ // 辅助方法：将十六进制字符串转换为字节数组
+ private static byte[] hexStringToByteArray(String s) {
+ int len = s.length();
+ byte[] data = new byte[len / 2];
+ for (int i = 0; i < len; i += 2) {
+ data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4)
+ + Character.digit(s.charAt(i+1), 16));
+ }
+ return data;
+ }
+
+ // 使用SM2私钥对哈希值进行签名
+ public static String signWithSM2(byte[] hash, ECPrivateKeyParameters sm2PrivateKey) throws Exception {
+ // 创建SM2签名器
+ SM2Signer signer = new SM2Signer();
+ signer.init(true, sm2PrivateKey);
+ // 对哈希值进行签名
+ signer.update(hash, 0, hash.length);
+ byte[] signature = signer.generateSignature();
+
+ // 将签名转换为十六进制大写字符串
+ StringBuilder hexString = new StringBuilder();
+ for (byte b : signature) {
+ String hex = Integer.toHexString(0xff & b);
+ if (hex.length() == 1) hexString.append('0');
+ hexString.append(hex);
+ }
+ return hexString.toString().toUpperCase();
+ }
+
+ public static void main(String[] args) throws Exception {
+ // 示例哈希值（这里只是一个占位符，你应该使用实际的哈希值）
+ String sm3 = Sm3Util.calculateSM3Hash("FJHXZ,PSSJ,Longitude,Latitude,PSFYJ,PSJD,PSHGJ,PSRY,ZSDM");
+ System.out.println("sm3 in hash: " + sm3);
+ byte[] hash = sm3.getBytes(); // 注意：使用SM3或其他哈希算法来计算数据的哈希值
+
+ // 加载私钥
+ ECPrivateKeyParameters sm2PrivateKey = getSM2PrivateKey();
+
+ // 使用SM2私钥对哈希值进行签名
+ String signatureHex = signWithSM2(hash, sm2PrivateKey);
+ System.out.println("Signature in hex (uppercase): " + signatureHex);
+
+// //验证
+// // 示例数据哈希（SM3哈希值）
+// byte[] dataHash = hash; // 注意：这里仅作为示例，你需要用实际的SM3哈希值
+//
+// // 示例签名（字节数组）
+// byte[] signature = signatureHex.getBytes(); // 注意：这里仅作为示例，你需要用实际的签名值
+//
+// // 验证签名
+// boolean isValid = verify(dataHash, signature);
+//
+// // 输出验证结果
+// System.out.println("Signature is valid: " + isValid);
+
+ }
+
+}
diff --git a/src/main/java/com/dji/sample/territory/utils/Sm3Util.java b/src/main/java/com/dji/sample/territory/utils/Sm3Util.java
new file mode 100644
index 0000000..e4c8d97
--- /dev/null
+++ b/src/main/java/com/dji/sample/territory/utils/Sm3Util.java
@@ -0,0 +1,58 @@
+package com.dji.sample.territory.utils;
+
+import org.bouncycastle.crypto.digests.SM3Digest;
+import org.bouncycastle.util.encoders.Hex;
+
+import java.nio.charset.StandardCharsets;
+
+/**
+ * @PROJECT_NAME: drone
+ * @DESCRIPTION: sm3加密算法工具类
+ * @USER: aix
+ * @DATE: 2024/5/9 9:28
+ */
+public class Sm3Util {
+
+ /**
+ * 计算SM3哈希值
+ *
+ * @param input 输入的字符串
+ * @return SM3哈希值的十六进制字符串表示
+ */
+ public static String calculateSM3Hash(String input) {
+ // 转换为字节数组
+ byte[] inputBytes = input.getBytes(StandardCharsets.UTF_8);
+
+ // 初始化SM3摘要
+ SM3Digest digest = new SM3Digest();
+
+ // 更新摘要
+ digest.update(inputBytes, 0, inputBytes.length);
+
+ // 完成摘要计算并获取结果
+ byte[] hash = new byte[digest.getDigestSize()];
+ digest.doFinal(hash, 0);
+
+ // 将字节数组转换为十六进制大写字符串
+ return Hex.toHexString(hash).toUpperCase();
+ }
+
+ /**
+ * 验证给定的哈希值是否与原始数据的SM3哈希值匹配
+ *
+ * @param str 原始数据
+ * @param sm3HexString 预期的哈希值（十六进制字符串）
+ * @return 如果匹配则返回true，否则返回false
+ */
+ public static boolean verify(String str, String sm3HexString) {
+
+ String calculatedHash = calculateSM3Hash(str);
+ return sm3HexString.equalsIgnoreCase(calculatedHash);
+ }
+
+// public static void main(String[] args) {
+// System.out.println(calculateSM3Hash("123"));
+// System.out.println(verify("1234", calculateSM3Hash("123")));
+// }
+
+}
--
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