【转】C#sm2签名验签实现
2024-06-09 15:08:25
//调用
private string Sm2String(string str){//sm加密SM2Param sM2Param = new SM2Param();byte[] priKey = Base64.Decode("V8pHqP6TGcQNWhMzEfI0HC0ov66666");byte[] pubKey = Convert.FromBase64String("BGqk8Y1gDzo6KYjUcL636thKuGc766666");ECPrivateKeyParameters privateKeyParameters = new ECPrivateKeyParameters(new BigInteger(1, priKey), sM2Param.ecc_bc_spec);ECPublicKeyParameters publicKeyParameters = new ECPublicKeyParameters(sM2Param.ecc_curve.DecodePoint(pubKey), sM2Param.ecc_bc_spec);//签名验签byte[] msg = System.Text.Encoding.UTF8.GetBytes(str);byte[] userId = System.Text.Encoding.UTF8.GetBytes("1G0H18EPJ07N3F60C8066666");byte[] sig = GmUtil.SignSm3WithSm2(msg, userId, privateKeyParameters);//string ss = Hex.ToHexString(sig);return Convert.ToBase64String(sig);}
GmUtil_1 工具类
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using Org.BouncyCastle.Asn1.X9;
using Org.BouncyCastle.Asn1.GM;
using Org.BouncyCastle.Crypto.Parameters;
using Org.BouncyCastle.Crypto;
using Org.BouncyCastle.Security;
using Org.BouncyCastle.Crypto.Engines;
using log4net;
using Org.BouncyCastle.Crypto.Digests;
using Org.BouncyCastle.Utilities;
using Org.BouncyCastle.Utilities.Encoders;
using Org.BouncyCastle.Crypto.Generators;
using System.IO;
using Org.BouncyCastle.X509;
using Org.BouncyCastle.Math;
using Org.BouncyCastle.Asn1;
using Org.BouncyCastle.Math.EC;
using Org.BouncyCastle.Asn1.Ocsp;namespace YB_PayInterface
{/*** need lib:* BouncyCastle.Crypto.dll（http://www.bouncycastle.org/csharp/index.html）（这段代码写的时候用的bccrypto-csharp-1.8.8，最低支持版本和最高支持版本自己研究）* log4net.dll（http://logging.apache.org/log4net/）（仅为了输出日志用，不用的话可自行改换其他方式输出异常信息）** ref:* https://tools.ietf.org/html/draft-shen-sm2-ecdsa-02* http://gmssl.org/docs/oid.html* http://www.jonllen.com/jonllen/work/164.aspx** 用BC的注意点：* 这个版本的BC对SM3withSM2的结果为asn1格式的r和s，如果需要直接拼接的r||s需要自己转换。下面rsAsn1ToPlainByteArray、rsPlainByteArrayToAsn1就在干这事。* 这个版本的BC对SM2的结果为C1||C2||C3，据说为旧标准，新标准为C1||C3||C2，用新标准的需要自己转换。下面（被注释掉的）changeC1C2C3ToC1C3C2、changeC1C3C2ToC1C2C3就在干这事。java版的高版本有加上C1C3C2，csharp版没准以后也会加，但目前还没有，java版的目前可以初始化时“ SM2Engine sm2Engine = new SM2Engine(SM2Engine.Mode.C1C3C2);”。* * 按要求国密算法仅允许使用加密机，本demo国密算法仅供学习使用，请不要用于生产用途。*/public class GmUtil_1{private static readonly ILog log = LogManager.GetLogger(typeof(GmUtil));private static X9ECParameters x9ECParameters = GMNamedCurves.GetByName("sm2p256v1");private static ECDomainParameters ecDomainParameters = new ECDomainParameters(x9ECParameters.Curve, x9ECParameters.G, x9ECParameters.N);//private static DerApplicationSpecific ecParameterSpec = new DerApplicationSpecific(x9ECParameters.Curve, x9ECParameters.G, x9ECParameters.N);/**** @param msg* @param userId* @param privateKey* @return r||s，直接拼接byte数组的rs*/public static byte[] SignSm3WithSm2(byte[] msg, byte[] userId, AsymmetricKeyParameter privateKey){return RsAsn1ToPlainByteArray(SignSm3WithSm2Asn1Rs(msg, userId, privateKey));}/*** @param msg* @param userId* @param privateKey* @return rs in <b>asn1 format</b>*/public static byte[] SignSm3WithSm2Asn1Rs(byte[] msg, byte[] userId, AsymmetricKeyParameter privateKey){try{ISigner signer = SignerUtilities.GetSigner("SM3withSM2");signer.Init(true, new ParametersWithID(privateKey, userId));signer.BlockUpdate(msg, 0, msg.Length);byte[] sig = signer.GenerateSignature();return sig;}catch (Exception e){log.Error("SignSm3WithSm2Asn1Rs error: " + e.Message, e);return null;}}public static byte[] signSm3WithSm2(byte[] msg, byte[] userId, byte[] privateKeyBytes){ECPrivateKeyParameters bcecPrivateKey = GetPrivatekeyFromD(new BigInteger(privateKeyBytes));return signSm3WithSm2(msg, userId, bcecPrivateKey);}public static byte[] signSm3WithSm2(byte[] msg, byte[] userId, ECPrivateKeyParameters privateKey){return RsAsn1ToPlainByteArray(SignSm3WithSm2Asn1Rs(msg, userId, privateKey));}/**** @param msg* @param userId* @param rs r||s，直接拼接byte数组的rs* @param publicKey* @return*/public static bool VerifySm3WithSm2(byte[] msg, byte[] userId, byte[] rs, AsymmetricKeyParameter publicKey){if (rs == null || msg == null || userId == null) return false;if (rs.Length != RS_LEN * 2) return false;return VerifySm3WithSm2Asn1Rs(msg, userId, RsPlainByteArrayToAsn1(rs), publicKey);}/**** @param msg* @param userId* @param rs in <b>asn1 format</b>* @param publicKey* @return*/public static bool VerifySm3WithSm2Asn1Rs(byte[] msg, byte[] userId, byte[] sign, AsymmetricKeyParameter publicKey){try{ISigner signer = SignerUtilities.GetSigner("SM3withSM2");signer.Init(false, new ParametersWithID(publicKey, userId));signer.BlockUpdate(msg, 0, msg.Length);return signer.VerifySignature(sign);}catch (Exception e){log.Error("VerifySm3WithSm2Asn1Rs error: " + e.Message, e);return false;}}/*** bc加解密使用旧标c1||c2||c3，此方法在加密后调用，将结果转化为c1||c3||c2* @param c1c2c3* @return*/private static byte[] ChangeC1C2C3ToC1C3C2(byte[] c1c2c3){int c1Len = (x9ECParameters.Curve.FieldSize + 7) / 8 * 2 + 1; //sm2p256v1的这个固定65。可看GMNamedCurves、ECCurve代码。const int c3Len = 32; //new SM3Digest().getDigestSize();byte[] result = new byte[c1c2c3.Length];Buffer.BlockCopy(c1c2c3, 0, result, 0, c1Len); //c1Buffer.BlockCopy(c1c2c3, c1c2c3.Length - c3Len, result, c1Len, c3Len); //c3Buffer.BlockCopy(c1c2c3, c1Len, result, c1Len + c3Len, c1c2c3.Length - c1Len - c3Len); //c2return result;}/*** bc加解密使用旧标c1||c3||c2，此方法在解密前调用，将密文转化为c1||c2||c3再去解密* @param c1c3c2* @return*/private static byte[] ChangeC1C3C2ToC1C2C3(byte[] c1c3c2){int c1Len = (x9ECParameters.Curve.FieldSize + 7) / 8 * 2 + 1; //sm2p256v1的这个固定65。可看GMNamedCurves、ECCurve代码。const int c3Len = 32; //new SM3Digest().GetDigestSize();byte[] result = new byte[c1c3c2.Length];Buffer.BlockCopy(c1c3c2, 0, result, 0, c1Len); //c1: 0->65Buffer.BlockCopy(c1c3c2, c1Len + c3Len, result, c1Len, c1c3c2.Length - c1Len - c3Len); //c2Buffer.BlockCopy(c1c3c2, c1Len, result, c1c3c2.Length - c3Len, c3Len); //c3return result;}/*** c1||c3||c2* @param data* @param key* @return*/public static byte[] Sm2Decrypt(byte[] data, AsymmetricKeyParameter key){return Sm2DecryptOld(ChangeC1C3C2ToC1C2C3(data), key);}/*** c1||c3||c2* @param data* @param key* @return*/public static byte[] Sm2Encrypt(byte[] data, AsymmetricKeyParameter key){return ChangeC1C2C3ToC1C3C2(Sm2EncryptOld(data, key));}/*** c1||c2||c3* @param data* @param key* @return*/public static byte[] Sm2EncryptOld(byte[] data, AsymmetricKeyParameter pubkey){try{SM2Engine sm2Engine = new SM2Engine();sm2Engine.Init(true, new ParametersWithRandom(pubkey, new SecureRandom()));return sm2Engine.ProcessBlock(data, 0, data.Length);}catch (Exception e){log.Error("Sm2EncryptOld error: " + e.Message, e);return null;}}/*** c1||c2||c3* @param data* @param key* @return*/public static byte[] Sm2DecryptOld(byte[] data, AsymmetricKeyParameter key){try{SM2Engine sm2Engine = new SM2Engine();sm2Engine.Init(false, key);return sm2Engine.ProcessBlock(data, 0, data.Length);}catch (Exception e){log.Error("Sm2DecryptOld error: " + e.Message, e);return null;}}/*** @param bytes* @return*/public static byte[] Sm3(byte[] bytes){try{SM3Digest digest = new SM3Digest();digest.BlockUpdate(bytes, 0, bytes.Length);byte[] result = DigestUtilities.DoFinal(digest);return result;}catch (Exception e){log.Error("Sm3 error: " + e.Message, e);return null;}}private const int RS_LEN = 32;private static byte[] BigIntToFixexLengthBytes(BigInteger rOrS){// for sm2p256v1, n is 00fffffffeffffffffffffffffffffffff7203df6b21c6052b53bbf40939d54123,// r and s are the result of mod n, so they should be less than n and have length<=32byte[] rs = rOrS.ToByteArray();if (rs.Length == RS_LEN) return rs;else if (rs.Length == RS_LEN + 1 && rs[0] == 0) return Arrays.CopyOfRange(rs, 1, RS_LEN + 1);else if (rs.Length < RS_LEN){byte[] result = new byte[RS_LEN];Arrays.Fill(result, (byte)0);Buffer.BlockCopy(rs, 0, result, RS_LEN - rs.Length, rs.Length);return result;}else{throw new ArgumentException("err rs: " + Hex.ToHexString(rs));}}/*** BC的SM3withSM2签名得到的结果的rs是asn1格式的，这个方法转化成直接拼接r||s* @param rsDer rs in asn1 format* @return sign result in plain byte array*/private static byte[] RsAsn1ToPlainByteArray(byte[] rsDer){Asn1Sequence seq = Asn1Sequence.GetInstance(rsDer);byte[] r = BigIntToFixexLengthBytes(DerInteger.GetInstance(seq[0]).Value);byte[] s = BigIntToFixexLengthBytes(DerInteger.GetInstance(seq[1]).Value);byte[] result = new byte[RS_LEN * 2];Buffer.BlockCopy(r, 0, result, 0, r.Length);Buffer.BlockCopy(s, 0, result, RS_LEN, s.Length);return result;}/*** BC的SM3withSM2验签需要的rs是asn1格式的，这个方法将直接拼接r||s的字节数组转化成asn1格式* @param sign in plain byte array* @return rs result in asn1 format*/private static byte[] RsPlainByteArrayToAsn1(byte[] sign){if (sign.Length != RS_LEN * 2) throw new ArgumentException("err rs. ");BigInteger r = new BigInteger(1, Arrays.CopyOfRange(sign, 0, RS_LEN));BigInteger s = new BigInteger(1, Arrays.CopyOfRange(sign, RS_LEN, RS_LEN * 2));Asn1EncodableVector v = new Asn1EncodableVector();v.Add(new DerInteger(r));v.Add(new DerInteger(s));try{return new DerSequence(v).GetEncoded("DER");}catch (IOException e){log.Error("RsPlainByteArrayToAsn1 error: " + e.Message, e);return null;}}public static AsymmetricCipherKeyPair GenerateKeyPair(){try{ECKeyPairGenerator kpGen = new ECKeyPairGenerator();kpGen.Init(new ECKeyGenerationParameters(ecDomainParameters, new SecureRandom()));return kpGen.GenerateKeyPair();}catch (Exception e){log.Error("generateKeyPair error: " + e.Message, e);return null;}}public static ECPrivateKeyParameters GetPrivatekeyFromD(BigInteger d){return new ECPrivateKeyParameters(d, ecDomainParameters);}public static ECPublicKeyParameters GetPublickeyFromXY(BigInteger x, BigInteger y){return new ECPublicKeyParameters(x9ECParameters.Curve.CreatePoint(x, y), ecDomainParameters);}public static AsymmetricKeyParameter GetPublickeyFromX509File(FileInfo file){FileStream fileStream = null;try{//file.DirectoryName + "\\" + file.NamefileStream = new FileStream(file.FullName, FileMode.Open, FileAccess.Read);X509Certificate certificate = new X509CertificateParser().ReadCertificate(fileStream);return certificate.GetPublicKey();}catch (Exception e){log.Error(file.Name + "读取失败，异常：" + e);}finally{if (fileStream != null)fileStream.Close();}return null;}public class Sm2Cert{public AsymmetricKeyParameter privateKey;public AsymmetricKeyParameter publicKey;public String certId;}private static byte[] ToByteArray(int i){byte[] byteArray = new byte[4];byteArray[0] = (byte)(i >> 24);byteArray[1] = (byte)((i & 0xFFFFFF) >> 16);byteArray[2] = (byte)((i & 0xFFFF) >> 8);byteArray[3] = (byte)(i & 0xFF);return byteArray;}/*** 字节数组拼接** @param params* @return*/private static byte[] Join(params byte[][] byteArrays){List<byte> byteSource = new List<byte>();for (int i = 0; i < byteArrays.Length; i++){byteSource.AddRange(byteArrays[i]);}byte[] data = byteSource.ToArray();return data;}/*** 密钥派生函数** @param Z* @param klen* 生成klen字节数长度的密钥* @return*/private static byte[] KDF(byte[] Z, int klen){int ct = 1;int end = (int)Math.Ceiling(klen * 1.0 / 32);List<byte> byteSource = new List<byte>();try{for (int i = 1; i < end; i++){byteSource.AddRange(GmUtil.Sm3(Join(Z, ToByteArray(ct))));ct++;}byte[] last = GmUtil.Sm3(Join(Z, ToByteArray(ct)));if (klen % 32 == 0){byteSource.AddRange(last);}elsebyteSource.AddRange(Arrays.CopyOfRange(last, 0, klen % 32));return byteSource.ToArray();}catch (Exception e){log.Error("KDF error: " + e.Message, e);}return null;}public static byte[] Sm4DecryptCBC(byte[] keyBytes, byte[] cipher, byte[] iv, String algo){if (keyBytes.Length != 16) throw new ArgumentException("err key length");if (cipher.Length % 16 != 0) throw new ArgumentException("err data length");try{KeyParameter key = ParameterUtilities.CreateKeyParameter("SM4", keyBytes);IBufferedCipher c = CipherUtilities.GetCipher(algo);if (iv == null) iv = ZeroIv(algo);c.Init(false, new ParametersWithIV(key, iv));return c.DoFinal(cipher);}catch (Exception e){log.Error("Sm4DecryptCBC error: " + e.Message, e);return null;}}public static byte[] Sm4EncryptCBC(byte[] keyBytes, byte[] plain, byte[] iv, String algo){if (keyBytes.Length != 16) throw new ArgumentException("err key length");if (plain.Length % 16 != 0) throw new ArgumentException("err data length");try{KeyParameter key = ParameterUtilities.CreateKeyParameter("SM4", keyBytes);IBufferedCipher c = CipherUtilities.GetCipher(algo);if (iv == null) iv = ZeroIv(algo);c.Init(true, new ParametersWithIV(key, iv));return c.DoFinal(plain);}catch (Exception e){log.Error("Sm4EncryptCBC error: " + e.Message, e);return null;}}public static byte[] Sm4EncryptECB(byte[] keyBytes, byte[] plain, string algo){if (keyBytes.Length != 16) throw new ArgumentException("err key length");if (plain.Length % 16 != 0) throw new ArgumentException("err data length");try{KeyParameter key = ParameterUtilities.CreateKeyParameter("SM4", keyBytes);IBufferedCipher c = CipherUtilities.GetCipher(algo);c.Init(true, key);return c.DoFinal(plain);}catch (Exception e){log.Error("Sm4EncryptECB error: " + e.Message, e);return null;}}public static byte[] Sm4DecryptECB(byte[] keyBytes, byte[] cipher, string algo){if (keyBytes.Length != 16) throw new ArgumentException("err key length");if (cipher.Length % 16 != 0) throw new ArgumentException("err data length");try{KeyParameter key = ParameterUtilities.CreateKeyParameter("SM4", keyBytes);IBufferedCipher c = CipherUtilities.GetCipher(algo);c.Init(false, key);return c.DoFinal(cipher);}catch (Exception e){log.Error("Sm4DecryptECB error: " + e.Message, e);return null;}}public const String SM4_ECB_NOPADDING = "SM4/ECB/NoPadding";public const String SM4_CBC_NOPADDING = "SM4/CBC/NoPadding";public const String SM4_CBC_PKCS7PADDING = "SM4/CBC/PKCS7Padding";/*** cfca官网CSP沙箱导出的sm2文件* @param pem 二进制原文* @param pwd 密码* @return*/public static Sm2Cert readSm2File(byte[] pem, String pwd){Sm2Cert sm2Cert = new Sm2Cert();try{Asn1Sequence asn1Sequence = (Asn1Sequence)Asn1Object.FromByteArray(pem);// ASN1Integer asn1Integer = (ASN1Integer) asn1Sequence.getObjectAt(0); //version=1Asn1Sequence priSeq = (Asn1Sequence)asn1Sequence[1];//private keyAsn1Sequence pubSeq = (Asn1Sequence)asn1Sequence[2];//public key and x509 cert// ASN1ObjectIdentifier sm2DataOid = (ASN1ObjectIdentifier) priSeq.getObjectAt(0);// ASN1ObjectIdentifier sm4AlgOid = (ASN1ObjectIdentifier) priSeq.getObjectAt(1);Asn1OctetString priKeyAsn1 = (Asn1OctetString)priSeq[2];byte[] key = KDF(System.Text.Encoding.UTF8.GetBytes(pwd), 32);byte[] priKeyD = Sm4DecryptCBC(Arrays.CopyOfRange(key, 16, 32),priKeyAsn1.GetOctets(),Arrays.CopyOfRange(key, 0, 16), SM4_CBC_PKCS7PADDING);sm2Cert.privateKey = GetPrivatekeyFromD(new BigInteger(1, priKeyD));// log.Info(Hex.toHexString(priKeyD));// ASN1ObjectIdentifier sm2DataOidPub = (ASN1ObjectIdentifier) pubSeq.getObjectAt(0);Asn1OctetString pubKeyX509 = (Asn1OctetString)pubSeq[1];X509Certificate x509 = (X509Certificate)new X509CertificateParser().ReadCertificate(pubKeyX509.GetOctets());sm2Cert.publicKey = x509.GetPublicKey();sm2Cert.certId = x509.SerialNumber.ToString(10); //这里转10进账，有啥其他进制要求的自己改改return sm2Cert;}catch (Exception e){log.Error("readSm2File error: " + e.Message, e);return null;}}/**** @param cert* @return*/public static Sm2Cert ReadSm2X509Cert(byte[] cert){Sm2Cert sm2Cert = new Sm2Cert();try{X509Certificate x509 = new X509CertificateParser().ReadCertificate(cert);sm2Cert.publicKey = x509.GetPublicKey();sm2Cert.certId = x509.SerialNumber.ToString(10); //这里转10进账，有啥其他进制要求的自己改改return sm2Cert;}catch (Exception e){log.Error("ReadSm2X509Cert error: " + e.Message, e);return null;}}public static byte[] ZeroIv(String algo){try{IBufferedCipher cipher = CipherUtilities.GetCipher(algo);int blockSize = cipher.GetBlockSize();byte[] iv = new byte[blockSize];Arrays.Fill(iv, (byte)0);return iv;}catch (Exception e){log.Error("ZeroIv error: " + e.Message, e);return null;}}public static void Main1(string[] s){// 随便看看//log.Info("GMNamedCurves: ");foreach (string e in GMNamedCurves.Names){//log.Info(e);}//log.Info("sm2p256v1 n:" + x9ECParameters.N);//log.Info("sm2p256v1 nHex:" + Hex.ToHexString(x9ECParameters.N.ToByteArray()));SM2Param sM2Param = new SM2Param();//Keybyte[] priKey = Convert.FromBase64String("DENOZDuuon+lHJCNzLyMfwJT8ZSdCcyPeW6JnWWkObo=");byte[] pubKey = Convert.FromBase64String("BGUh0gYeUj9WMa15L+QC0P62gJtX6JCrdIAIz96c5dGN6FbtxU7frc2qnL9IhogoHQgO8pt7A3ICSxmgJqiLERc=");ECPrivateKeyParameters privateKeyParameters = new ECPrivateKeyParameters(new BigInteger(1, priKey), sM2Param.ecc_bc_spec);ECPublicKeyParameters publicKeyParameters = new ECPublicKeyParameters(sM2Param.ecc_curve.DecodePoint(pubKey), sM2Param.ecc_bc_spec);// 生成公私钥对 ---------------------//AsymmetricCipherKeyPair kp = GmUtil.GenerateKeyPair();//ECPrivateKeyParameters eCPrivate = new ECPrivateKeyParameters()//Console.WriteLine("private key d: " + ((ECPrivateKeyParameters)kp.Private).D);//Console.WriteLine("public key q:" + ((ECPublicKeyParameters)kp.Public).Q); //{x, y, zs...}//签名验签byte[] msg = System.Text.Encoding.UTF8.GetBytes("message digest");byte[] userId = System.Text.Encoding.UTF8.GetBytes("AA00EDC7ACB9F2CB");byte[] sig = GmUtil.SignSm3WithSm2(msg, userId, privateKeyParameters);//kp.Private);string ss = Hex.ToHexString(sig);string result = Convert.ToBase64String(sig);bool b = GmUtil.VerifySm3WithSm2(msg, userId, sig, publicKeyParameters);// kp.Public);Console.ReadKey();}/*public static void Main(string[] s){//签名验签string input = "{ \"signIn\":{ \"opter_no\":\"9999\", \"mac\":\"70 - B5 - E8 - 48 - 78 - 48\", \"ip\":\"192.168.2.101\" } }";byte[] msg = System.Text.Encoding.UTF8.GetBytes(input);byte[] userId = System.Text.Encoding.UTF8.GetBytes("AA00EDC7ACB9F2CB");byte[] privateKeyBytes = Convert.FromBase64String("DENOZDuuon+lHJCNzLyMfwJT8ZSdCcyPeW6JnWWkObo=");byte[] sig = signSm3WithSm2(msg, userId, privateKeyBytes);string result = Convert.ToBase64String(sig);Console.WriteLine("testSignSm3WithSm2: " + Hex.ToHexString(sig));Console.ReadKey();//Console.WriteLine("testVerifySm3WithSm2: " + VerifySm3WithSm2(msg, userId, sig, kp.Public));}*///public static void Main(string[] s)//{// log.Info("GMNamedCurves: ");// foreach (string e in GMNamedCurves.Names)// {// log.Info(e);// }// log.Info("sm2p256v1 n:" + x9ECParameters.N);// log.Info("sm2p256v1 nHex:" + Hex.ToHexString(x9ECParameters.N.ToByteArray()));// // 生成公私钥对 ---------------------// AsymmetricCipherKeyPair kp = GmUtil.GenerateKeyPair();// log.Info("private key d: " + ((ECPrivateKeyParameters)kp.Private).D);// log.Info("public key q:" + ((ECPublicKeyParameters)kp.Public).Q); //{x, y, zs...}// //签名验签// byte[] msg = System.Text.Encoding.UTF8.GetBytes("message digest");// byte[] userId = System.Text.Encoding.UTF8.GetBytes("userId");// byte[] sig = SignSm3WithSm2(msg, userId, kp.Private);// log.Info("testSignSm3WithSm2: " + Hex.ToHexString(sig));// log.Info("testVerifySm3WithSm2: " + VerifySm3WithSm2(msg, userId, sig, kp.Public));// // 由d生成私钥 ---------------------// BigInteger d = new BigInteger("097b5230ef27c7df0fa768289d13ad4e8a96266f0fcb8de40d5942af4293a54a", 16);// ECPrivateKeyParameters bcecPrivateKey = GetPrivatekeyFromD(d);// log.Info("testGetFromD: " + bcecPrivateKey.D.ToString(16));// //公钥X坐标PublicKeyXHex: 59cf9940ea0809a97b1cbffbb3e9d96d0fe842c1335418280bfc51dd4e08a5d4// //公钥Y坐标PublicKeyYHex: 9a7f77c578644050e09a9adc4245d1e6eba97554bc8ffd4fe15a78f37f891ff8// AsymmetricKeyParameter publicKey = GetPublickeyFromX509File(new FileInfo("d:/certs/69629141652.cer"));// log.Info(publicKey);// AsymmetricKeyParameter publicKey1 = GetPublickeyFromXY(new BigInteger("59cf9940ea0809a97b1cbffbb3e9d96d0fe842c1335418280bfc51dd4e08a5d4", 16), new BigInteger("9a7f77c578644050e09a9adc4245d1e6eba97554bc8ffd4fe15a78f37f891ff8", 16));// log.Info("testReadFromX509File: " + ((ECPublicKeyParameters)publicKey).Q);// log.Info("testGetFromXY: " + ((ECPublicKeyParameters)publicKey1).Q);// log.Info("testPubKey: " + publicKey.Equals(publicKey1));// log.Info("testPubKey: " + ((ECPublicKeyParameters)publicKey).Q.Equals(((ECPublicKeyParameters)publicKey1).Q));// // sm2 encrypt and decrypt test ---------------------// AsymmetricCipherKeyPair kp2 = GenerateKeyPair();// AsymmetricKeyParameter publicKey2 = kp2.Public;// AsymmetricKeyParameter privateKey2 = kp2.Private;// byte[] bs = Sm2Encrypt(System.Text.Encoding.UTF8.GetBytes("s"), publicKey2);// log.Info("testSm2Enc dec: " + Hex.ToHexString(bs));// bs = Sm2Decrypt(bs, privateKey2);// log.Info("testSm2Enc dec: " + System.Text.Encoding.UTF8.GetString(bs));// // sm4 encrypt and decrypt test ---------------------// //0123456789abcdeffedcba9876543210 + 0123456789abcdeffedcba9876543210 -> 681edf34d206965e86b3e94f536e4246// byte[] plain = Hex.Decode("0123456789abcdeffedcba98765432100123456789abcdeffedcba98765432100123456789abcdeffedcba9876543210");// byte[] key = Hex.Decode("0123456789abcdeffedcba9876543210");// byte[] cipher = Hex.Decode("595298c7c6fd271f0402f804c33d3f66");// bs = Sm4EncryptECB(key, plain, GmUtil.SM4_ECB_NOPADDING);// log.Info("testSm4EncEcb: " + Hex.ToHexString(bs)); ;// bs = Sm4DecryptECB(key, bs, GmUtil.SM4_ECB_NOPADDING);// log.Info("testSm4DecEcb: " + Hex.ToHexString(bs));// //读.sm2文件// String sm2 = "MIIDHQIBATBHBgoqgRzPVQYBBAIBBgcqgRzPVQFoBDDW5/I9kZhObxXE9Vh1CzHdZhIhxn+3byBU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\nVfY6";// bs = Convert.FromBase64String(sm2);// String pwd = "cfca1234";// GmUtil.Sm2Cert sm2Cert = GmUtil.readSm2File(bs, pwd);// log.Info("testReadSm2File, pubkey: " + ((ECPublicKeyParameters)sm2Cert.publicKey).Q.ToString());// log.Info("testReadSm2File, prikey: " + Hex.ToHexString(((ECPrivateKeyParameters)sm2Cert.privateKey).D.ToByteArray()));// log.Info("testReadSm2File, certId: " + sm2Cert.certId);// bs = Sm2Encrypt(System.Text.Encoding.UTF8.GetBytes("s"), ((ECPublicKeyParameters)sm2Cert.publicKey));// log.Info("testSm2Enc dec: " + Hex.ToHexString(bs));// bs = Sm2Decrypt(bs, ((ECPrivateKeyParameters)sm2Cert.privateKey));// log.Info("testSm2Enc dec: " + System.Text.Encoding.UTF8.GetString(bs));// msg = System.Text.Encoding.UTF8.GetBytes("message digest");// userId = System.Text.Encoding.UTF8.GetBytes("userId");// sig = SignSm3WithSm2(msg, userId, ((ECPrivateKeyParameters)sm2Cert.privateKey));// log.Info("testSignSm3WithSm2: " + Hex.ToHexString(sig));// log.Info("testVerifySm3WithSm2: " + VerifySm3WithSm2(msg, userId, sig, ((ECPublicKeyParameters)sm2Cert.publicKey)));//}}public class SM2Param{public static String[] ecc_param = { "FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFF", "FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000FFFFFFFFFFFFFFFC", "28E9FA9E9D9F5E344D5A9E4BCF6509A7F39789F515AB8F92DDBCBD414D940E93", "FFFFFFFEFFFFFFFFFFFFFFFFFFFFFFFF7203DF6B21C6052B53BBF40939D54123", "32C4AE2C1F1981195F9904466A39C9948FE30BBFF2660BE1715A4589334C74C7", "BC3736A2F4F6779C59BDCEE36B692153D0A9877CC62A474002DF32E52139F0A0" };public BigInteger ecc_p;public BigInteger ecc_a;public BigInteger ecc_b;public BigInteger ecc_n;public BigInteger ecc_gx;public BigInteger ecc_gy;public ECCurve ecc_curve;public ECDomainParameters ecc_bc_spec;public SM2Param(){this.ecc_p = new BigInteger(ecc_param[0], 16);this.ecc_a = new BigInteger(ecc_param[1], 16);this.ecc_b = new BigInteger(ecc_param[2], 16);this.ecc_n = new BigInteger(ecc_param[3], 16);this.ecc_gx = new BigInteger(ecc_param[4], 16);this.ecc_gy = new BigInteger(ecc_param[5], 16);this.ecc_curve = new FpCurve(ecc_p, ecc_a, ecc_b, ecc_n, BigInteger.One);this.ecc_bc_spec = new ECDomainParameters(this.ecc_curve, this.ecc_curve.CreatePoint(this.ecc_gx, this.ecc_gy), this.ecc_n);}}
}using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using Org.BouncyCastle.Asn1.X9;
using Org.BouncyCastle.Asn1.GM;
using Org.BouncyCastle.Crypto.Parameters;
using Org.BouncyCastle.Crypto;
using Org.BouncyCastle.Security;
using Org.BouncyCastle.Crypto.Engines;
using log4net;
using Org.BouncyCastle.Crypto.Digests;
using Org.BouncyCastle.Utilities;
using Org.BouncyCastle.Utilities.Encoders;
using Org.BouncyCastle.Crypto.Generators;
using System.IO;
using Org.BouncyCastle.X509;
using Org.BouncyCastle.Math;
using Org.BouncyCastle.Asn1;namespace YB_PayInterface
{/*** need lib:* BouncyCastle.Crypto.dll（http://www.bouncycastle.org/csharp/index.html）（这段代码写的时候用的bccrypto-csharp-1.8.8，最低支持版本和最高支持版本自己研究）* log4net.dll（http://logging.apache.org/log4net/）（仅为了输出日志用，不用的话可自行改换其他方式输出异常信息）** ref:* https://tools.ietf.org/html/draft-shen-sm2-ecdsa-02* http://gmssl.org/docs/oid.html* http://www.jonllen.com/jonllen/work/164.aspx** 用BC的注意点：* 这个版本的BC对SM3withSM2的结果为asn1格式的r和s，如果需要直接拼接的r||s需要自己转换。下面rsAsn1ToPlainByteArray、rsPlainByteArrayToAsn1就在干这事。* 这个版本的BC对SM2的结果为C1||C2||C3，据说为旧标准，新标准为C1||C3||C2，用新标准的需要自己转换。下面（被注释掉的）changeC1C2C3ToC1C3C2、changeC1C3C2ToC1C2C3就在干这事。java版的高版本有加上C1C3C2，csharp版没准以后也会加，但目前还没有，java版的目前可以初始化时“ SM2Engine sm2Engine = new SM2Engine(SM2Engine.Mode.C1C3C2);”。* * 按要求国密算法仅允许使用加密机，本demo国密算法仅供学习使用，请不要用于生产用途。*/public class GmUtil{private static readonly ILog log = LogManager.GetLogger(typeof(GmUtil));private static X9ECParameters x9ECParameters = GMNamedCurves.GetByName("sm2p256v1");private static ECDomainParameters ecDomainParameters = new ECDomainParameters(x9ECParameters.Curve, x9ECParameters.G, x9ECParameters.N);/**** @param msg* @param userId* @param privateKey* @return r||s，直接拼接byte数组的rs*/public static byte[] SignSm3WithSm2(byte[] msg, byte[] userId, AsymmetricKeyParameter privateKey){return RsAsn1ToPlainByteArray(SignSm3WithSm2Asn1Rs(msg, userId, privateKey));}/*** @param msg* @param userId* @param privateKey* @return rs in <b>asn1 format</b>*/public static byte[] SignSm3WithSm2Asn1Rs(byte[] msg, byte[] userId, AsymmetricKeyParameter privateKey){try{SM2Param sM2Param = new SM2Param();ISigner signer = SignerUtilities.GetSigner("SM3withSM2");ICipherParameters cp = new ParametersWithRandom(privateKey);//signer.Init(true, new ParametersWithID(privateKey, userId));signer.Init(true, cp);signer.BlockUpdate(msg, 0, msg.Length);byte[] sig = signer.GenerateSignature();return sig;}catch (Exception e){log.Error("SignSm3WithSm2Asn1Rs error: " + e.Message, e);return null;}}/**** @param msg* @param userId* @param rs r||s，直接拼接byte数组的rs* @param publicKey* @return*/public static bool VerifySm3WithSm2(byte[] msg, byte[] userId, byte[] rs, AsymmetricKeyParameter publicKey){if (rs == null || msg == null || userId == null) return false;if (rs.Length != RS_LEN * 2) return false;return VerifySm3WithSm2Asn1Rs(msg, userId, RsPlainByteArrayToAsn1(rs), publicKey);}/**** @param msg* @param userId* @param rs in <b>asn1 format</b>* @param publicKey* @return*/public static bool VerifySm3WithSm2Asn1Rs(byte[] msg, byte[] userId, byte[] sign, AsymmetricKeyParameter publicKey){try{ISigner signer = SignerUtilities.GetSigner("SM3withSM2");signer.Init(false, new ParametersWithID(publicKey, userId));signer.BlockUpdate(msg, 0, msg.Length);return signer.VerifySignature(sign);}catch (Exception e){log.Error("VerifySm3WithSm2Asn1Rs error: " + e.Message, e);return false;}}/*** bc加解密使用旧标c1||c2||c3，此方法在加密后调用，将结果转化为c1||c3||c2* @param c1c2c3* @return*/private static byte[] ChangeC1C2C3ToC1C3C2(byte[] c1c2c3){int c1Len = (x9ECParameters.Curve.FieldSize + 7) / 8 * 2 + 1; //sm2p256v1的这个固定65。可看GMNamedCurves、ECCurve代码。const int c3Len = 32; //new SM3Digest().getDigestSize();byte[] result = new byte[c1c2c3.Length];Buffer.BlockCopy(c1c2c3, 0, result, 0, c1Len); //c1Buffer.BlockCopy(c1c2c3, c1c2c3.Length - c3Len, result, c1Len, c3Len); //c3Buffer.BlockCopy(c1c2c3, c1Len, result, c1Len + c3Len, c1c2c3.Length - c1Len - c3Len); //c2return result;}/*** bc加解密使用旧标c1||c3||c2，此方法在解密前调用，将密文转化为c1||c2||c3再去解密* @param c1c3c2* @return*/private static byte[] ChangeC1C3C2ToC1C2C3(byte[] c1c3c2){int c1Len = (x9ECParameters.Curve.FieldSize + 7) / 8 * 2 + 1; //sm2p256v1的这个固定65。可看GMNamedCurves、ECCurve代码。const int c3Len = 32; //new SM3Digest().GetDigestSize();byte[] result = new byte[c1c3c2.Length];Buffer.BlockCopy(c1c3c2, 0, result, 0, c1Len); //c1: 0->65Buffer.BlockCopy(c1c3c2, c1Len + c3Len, result, c1Len, c1c3c2.Length - c1Len - c3Len); //c2Buffer.BlockCopy(c1c3c2, c1Len, result, c1c3c2.Length - c3Len, c3Len); //c3return result;}/*** c1||c3||c2* @param data* @param key* @return*/public static byte[] Sm2Decrypt(byte[] data, AsymmetricKeyParameter key){return Sm2DecryptOld(ChangeC1C3C2ToC1C2C3(data), key);}/*** c1||c3||c2* @param data* @param key* @return*/public static byte[] Sm2Encrypt(byte[] data, AsymmetricKeyParameter key){return ChangeC1C2C3ToC1C3C2(Sm2EncryptOld(data, key));}/*** c1||c2||c3* @param data* @param key* @return*/public static byte[] Sm2EncryptOld(byte[] data, AsymmetricKeyParameter pubkey){try{SM2Engine sm2Engine = new SM2Engine();sm2Engine.Init(true, new ParametersWithRandom(pubkey, new SecureRandom()));return sm2Engine.ProcessBlock(data, 0, data.Length);}catch (Exception e){log.Error("Sm2EncryptOld error: " + e.Message, e);return null;}}/*** c1||c2||c3* @param data* @param key* @return*/public static byte[] Sm2DecryptOld(byte[] data, AsymmetricKeyParameter key){try{SM2Engine sm2Engine = new SM2Engine();sm2Engine.Init(false, key);return sm2Engine.ProcessBlock(data, 0, data.Length);}catch (Exception e){log.Error("Sm2DecryptOld error: " + e.Message, e);return null;}}/*** @param bytes* @return*/public static byte[] Sm3(byte[] bytes){try{SM3Digest digest = new SM3Digest();digest.BlockUpdate(bytes, 0, bytes.Length);byte[] result = DigestUtilities.DoFinal(digest);return result;}catch (Exception e){log.Error("Sm3 error: " + e.Message, e);return null;}}private const int RS_LEN = 32;private static byte[] BigIntToFixexLengthBytes(BigInteger rOrS){// for sm2p256v1, n is 00fffffffeffffffffffffffffffffffff7203df6b21c6052b53bbf40939d54123,// r and s are the result of mod n, so they should be less than n and have length<=32byte[] rs = rOrS.ToByteArray();if (rs.Length == RS_LEN) return rs;else if (rs.Length == RS_LEN + 1 && rs[0] == 0) return Arrays.CopyOfRange(rs, 1, RS_LEN + 1);else if (rs.Length < RS_LEN){byte[] result = new byte[RS_LEN];Arrays.Fill(result, (byte)0);Buffer.BlockCopy(rs, 0, result, RS_LEN - rs.Length, rs.Length);return result;}else{throw new ArgumentException("err rs: " + Hex.ToHexString(rs));}}/*** BC的SM3withSM2签名得到的结果的rs是asn1格式的，这个方法转化成直接拼接r||s* @param rsDer rs in asn1 format* @return sign result in plain byte array*/private static byte[] RsAsn1ToPlainByteArray(byte[] rsDer){Asn1Sequence seq = Asn1Sequence.GetInstance(rsDer);byte[] r = BigIntToFixexLengthBytes(DerInteger.GetInstance(seq[0]).Value);byte[] s = BigIntToFixexLengthBytes(DerInteger.GetInstance(seq[1]).Value);byte[] result = new byte[RS_LEN * 2];Buffer.BlockCopy(r, 0, result, 0, r.Length);Buffer.BlockCopy(s, 0, result, RS_LEN, s.Length);return result;}/*** BC的SM3withSM2验签需要的rs是asn1格式的，这个方法将直接拼接r||s的字节数组转化成asn1格式* @param sign in plain byte array* @return rs result in asn1 format*/private static byte[] RsPlainByteArrayToAsn1(byte[] sign){if (sign.Length != RS_LEN * 2) throw new ArgumentException("err rs. ");BigInteger r = new BigInteger(1, Arrays.CopyOfRange(sign, 0, RS_LEN));BigInteger s = new BigInteger(1, Arrays.CopyOfRange(sign, RS_LEN, RS_LEN * 2));Asn1EncodableVector v = new Asn1EncodableVector();v.Add(new DerInteger(r));v.Add(new DerInteger(s));try{return new DerSequence(v).GetEncoded("DER");}catch (IOException e){log.Error("RsPlainByteArrayToAsn1 error: " + e.Message, e);return null;}}public static AsymmetricCipherKeyPair GenerateKeyPair(){try{ECKeyPairGenerator kpGen = new ECKeyPairGenerator();kpGen.Init(new ECKeyGenerationParameters(ecDomainParameters, new SecureRandom()));return kpGen.GenerateKeyPair();}catch (Exception e){log.Error("generateKeyPair error: " + e.Message, e);return null;}}public static ECPrivateKeyParameters GetPrivatekeyFromD(BigInteger d){return new ECPrivateKeyParameters(d, ecDomainParameters);}public static ECPublicKeyParameters GetPublickeyFromXY(BigInteger x, BigInteger y){return new ECPublicKeyParameters(x9ECParameters.Curve.CreatePoint(x, y), ecDomainParameters);}public static AsymmetricKeyParameter GetPublickeyFromX509File(FileInfo file){FileStream fileStream = null;try{//file.DirectoryName + "\\" + file.NamefileStream = new FileStream(file.FullName, FileMode.Open, FileAccess.Read);X509Certificate certificate = new X509CertificateParser().ReadCertificate(fileStream);return certificate.GetPublicKey();}catch (Exception e){log.Error(file.Name + "读取失败，异常：" + e);}finally{if (fileStream != null)fileStream.Close();}return null;}public class Sm2Cert{public AsymmetricKeyParameter privateKey;public AsymmetricKeyParameter publicKey;public String certId;}private static byte[] ToByteArray(int i){byte[] byteArray = new byte[4];byteArray[0] = (byte)(i >> 24);byteArray[1] = (byte)((i & 0xFFFFFF) >> 16);byteArray[2] = (byte)((i & 0xFFFF) >> 8);byteArray[3] = (byte)(i & 0xFF);return byteArray;}/*** 字节数组拼接** @param params* @return*/private static byte[] Join(params byte[][] byteArrays){List<byte> byteSource = new List<byte>();for (int i = 0; i < byteArrays.Length; i++){byteSource.AddRange(byteArrays[i]);}byte[] data = byteSource.ToArray();return data;}/*** 密钥派生函数** @param Z* @param klen* 生成klen字节数长度的密钥* @return*/private static byte[] KDF(byte[] Z, int klen){int ct = 1;int end = (int)Math.Ceiling(klen * 1.0 / 32);List<byte> byteSource = new List<byte>();try{for (int i = 1; i < end; i++){byteSource.AddRange(GmUtil.Sm3(Join(Z, ToByteArray(ct))));ct++;}byte[] last = GmUtil.Sm3(Join(Z, ToByteArray(ct)));if (klen % 32 == 0){byteSource.AddRange(last);}elsebyteSource.AddRange(Arrays.CopyOfRange(last, 0, klen % 32));return byteSource.ToArray();}catch (Exception e){log.Error("KDF error: " + e.Message, e);}return null;}public static byte[] Sm4DecryptCBC(byte[] keyBytes, byte[] cipher, byte[] iv, String algo){if (keyBytes.Length != 16) throw new ArgumentException("err key length");if (cipher.Length % 16 != 0) throw new ArgumentException("err data length");try{KeyParameter key = ParameterUtilities.CreateKeyParameter("SM4", keyBytes);IBufferedCipher c = CipherUtilities.GetCipher(algo);if (iv == null) iv = ZeroIv(algo);c.Init(false, new ParametersWithIV(key, iv));return c.DoFinal(cipher);}catch (Exception e){log.Error("Sm4DecryptCBC error: " + e.Message, e);return null;}}public static byte[] Sm4EncryptCBC(byte[] keyBytes, byte[] plain, byte[] iv, String algo){if (keyBytes.Length != 16) throw new ArgumentException("err key length");if (plain.Length % 16 != 0) throw new ArgumentException("err data length");try{KeyParameter key = ParameterUtilities.CreateKeyParameter("SM4", keyBytes);IBufferedCipher c = CipherUtilities.GetCipher(algo);if (iv == null) iv = ZeroIv(algo);c.Init(true, new ParametersWithIV(key, iv));return c.DoFinal(plain);}catch (Exception e){log.Error("Sm4EncryptCBC error: " + e.Message, e);return null;}}private static byte[] padding(byte[] input){if (input == null){return null;}byte[] ret = (byte[])null;int p = 16 - input.Length % 16;ret = new byte[input.Length + p];Array.Copy(input, 0, ret, 0, input.Length);for (int i = 0; i < p; i++){ret[input.Length + i] = (byte)p;}return ret;}public static byte[] Sm4EncryptECB(byte[] keyBytes, byte[] plain, string algo){if (keyBytes.Length != 16) throw new ArgumentException("err key length");// if (plain.Length % 16 != 0) throw new ArgumentException("err data length");plain = padding(plain);try{KeyParameter key = ParameterUtilities.CreateKeyParameter("SM4", keyBytes);IBufferedCipher c = CipherUtilities.GetCipher(algo);c.Init(true, key);return c.DoFinal(plain);}catch (Exception e){log.Error("Sm4EncryptECB error: " + e.Message, e);return null;}}public static byte[] Sm4DecryptECB(byte[] keyBytes, byte[] cipher, string algo){if (keyBytes.Length != 16) throw new ArgumentException("err key length");if (cipher.Length % 16 != 0) throw new ArgumentException("err data length");try{KeyParameter key = ParameterUtilities.CreateKeyParameter("SM4", keyBytes);IBufferedCipher c = CipherUtilities.GetCipher(algo);c.Init(false, key);return c.DoFinal(cipher);}catch (Exception e){log.Error("Sm4DecryptECB error: " + e.Message, e);return null;}}public const String SM4_ECB_NOPADDING = "SM4/ECB/NoPadding";public const String SM4_CBC_NOPADDING = "SM4/CBC/NoPadding";public const String SM4_CBC_PKCS7PADDING = "SM4/CBC/PKCS7Padding";/*** cfca官网CSP沙箱导出的sm2文件* @param pem 二进制原文* @param pwd 密码* @return*/public static Sm2Cert readSm2File(byte[] pem, String pwd){Sm2Cert sm2Cert = new Sm2Cert();try{Asn1Sequence asn1Sequence = (Asn1Sequence)Asn1Object.FromByteArray(pem);// ASN1Integer asn1Integer = (ASN1Integer) asn1Sequence.getObjectAt(0); //version=1Asn1Sequence priSeq = (Asn1Sequence)asn1Sequence[1];//private keyAsn1Sequence pubSeq = (Asn1Sequence)asn1Sequence[2];//public key and x509 cert// ASN1ObjectIdentifier sm2DataOid = (ASN1ObjectIdentifier) priSeq.getObjectAt(0);// ASN1ObjectIdentifier sm4AlgOid = (ASN1ObjectIdentifier) priSeq.getObjectAt(1);Asn1OctetString priKeyAsn1 = (Asn1OctetString)priSeq[2];byte[] key = KDF(System.Text.Encoding.UTF8.GetBytes(pwd), 32);byte[] priKeyD = Sm4DecryptCBC(Arrays.CopyOfRange(key, 16, 32),priKeyAsn1.GetOctets(),Arrays.CopyOfRange(key, 0, 16), SM4_CBC_PKCS7PADDING);sm2Cert.privateKey = GetPrivatekeyFromD(new BigInteger(1, priKeyD));// log.Info(Hex.toHexString(priKeyD));// ASN1ObjectIdentifier sm2DataOidPub = (ASN1ObjectIdentifier) pubSeq.getObjectAt(0);Asn1OctetString pubKeyX509 = (Asn1OctetString)pubSeq[1];X509Certificate x509 = (X509Certificate)new X509CertificateParser().ReadCertificate(pubKeyX509.GetOctets());sm2Cert.publicKey = x509.GetPublicKey();sm2Cert.certId = x509.SerialNumber.ToString(10); //这里转10进账，有啥其他进制要求的自己改改return sm2Cert;}catch (Exception e){log.Error("readSm2File error: " + e.Message, e);return null;}}/**** @param cert* @return*/public static Sm2Cert ReadSm2X509Cert(byte[] cert){Sm2Cert sm2Cert = new Sm2Cert();try{X509Certificate x509 = new X509CertificateParser().ReadCertificate(cert);sm2Cert.publicKey = x509.GetPublicKey();sm2Cert.certId = x509.SerialNumber.ToString(10); //这里转10进账，有啥其他进制要求的自己改改return sm2Cert;}catch (Exception e){log.Error("ReadSm2X509Cert error: " + e.Message, e);return null;}}public static byte[] ZeroIv(String algo){try{IBufferedCipher cipher = CipherUtilities.GetCipher(algo);int blockSize = cipher.GetBlockSize();byte[] iv = new byte[blockSize];Arrays.Fill(iv, (byte)0);return iv;}catch (Exception e){log.Error("ZeroIv error: " + e.Message, e);return null;}}public static void Main2(string[] s){// 随便看看log.Info("GMNamedCurves: ");foreach (string e in GMNamedCurves.Names){log.Info(e);}log.Info("sm2p256v1 n:" + x9ECParameters.N);log.Info("sm2p256v1 nHex:" + Hex.ToHexString(x9ECParameters.N.ToByteArray()));// 生成公私钥对 ---------------------AsymmetricCipherKeyPair kp = GmUtil.GenerateKeyPair();log.Info("private key d: " + ((ECPrivateKeyParameters)kp.Private).D);log.Info("public key q:" + ((ECPublicKeyParameters)kp.Public).Q); //{x, y, zs...}//KeySM2Param sM2Param = new SM2Param();byte[] priKey = Convert.FromBase64String("DENOZDuuon+lHJCNzLyMfwJT8ZSdCcyPeW6JnWWkObo=");byte[] pubKey = Convert.FromBase64String("BGUh0gYeUj9WMa15L+QC0P62gJtX6JCrdIAIz96c5dGN6FbtxU7frc2qnL9IhogoHQgO8pt7A3ICSxmgJqiLERc=");ECPrivateKeyParameters privateKeyParameters = new ECPrivateKeyParameters(new BigInteger(1, priKey), sM2Param.ecc_bc_spec);ECPublicKeyParameters publicKeyParameters = new ECPublicKeyParameters(sM2Param.ecc_curve.DecodePoint(pubKey), sM2Param.ecc_bc_spec);//签名验签byte[] msg = System.Text.Encoding.UTF8.GetBytes("1");byte[] userId = System.Text.Encoding.UTF8.GetBytes("AA00EDC7ACB9F2CB");byte[] sig = SignSm3WithSm2(msg, userId, privateKeyParameters);string ss = Hex.ToHexString(sig);string result = Convert.ToBase64String(sig);string mw = "VkwmhDwtCaiqkLQAvM1tKnrb2KaqRps5mffBs4fEOCGNrosbf6dn/kJ+P4wyyZdahf+CvCB62Y5U4e2BPePhlw==";sig = Convert.FromBase64String(mw);bool b = GmUtil.VerifySm3WithSm2(msg, userId, sig, publicKeyParameters);// kp.Public);}/*/ 由d生成私钥 ---------------------BigInteger d = new BigInteger("097b5230ef27c7df0fa768289d13ad4e8a96266f0fcb8de40d5942af4293a54a", 16);ECPrivateKeyParameters bcecPrivateKey = GetPrivatekeyFromD(d);log.Info("testGetFromD: " + bcecPrivateKey.D.ToString(16));//公钥X坐标PublicKeyXHex: 59cf9940ea0809a97b1cbffbb3e9d96d0fe842c1335418280bfc51dd4e08a5d4//公钥Y坐标PublicKeyYHex: 9a7f77c578644050e09a9adc4245d1e6eba97554bc8ffd4fe15a78f37f891ff8AsymmetricKeyParameter publicKey = GetPublickeyFromX509File(new FileInfo("d:/certs/69629141652.cer"));log.Info(publicKey);AsymmetricKeyParameter publicKey1 = GetPublickeyFromXY(new BigInteger("59cf9940ea0809a97b1cbffbb3e9d96d0fe842c1335418280bfc51dd4e08a5d4", 16), new BigInteger("9a7f77c578644050e09a9adc4245d1e6eba97554bc8ffd4fe15a78f37f891ff8", 16));log.Info("testReadFromX509File: " + ((ECPublicKeyParameters)publicKey).Q);log.Info("testGetFromXY: " + ((ECPublicKeyParameters)publicKey1).Q);log.Info("testPubKey: " + publicKey.Equals(publicKey1));log.Info("testPubKey: " + ((ECPublicKeyParameters)publicKey).Q.Equals(((ECPublicKeyParameters)publicKey1).Q));// sm2 encrypt and decrypt test ---------------------AsymmetricCipherKeyPair kp2 = GenerateKeyPair();AsymmetricKeyParameter publicKey2 = kp2.Public;AsymmetricKeyParameter privateKey2 = kp2.Private;byte[] bs = Sm2Encrypt(System.Text.Encoding.UTF8.GetBytes("s"), publicKey2);log.Info("testSm2Enc dec: " + Hex.ToHexString(bs));bs = Sm2Decrypt(bs, privateKey2);log.Info("testSm2Enc dec: " + System.Text.Encoding.UTF8.GetString(bs));// sm4 encrypt and decrypt test ---------------------//0123456789abcdeffedcba9876543210 + 0123456789abcdeffedcba9876543210 -> 681edf34d206965e86b3e94f536e4246byte[] plain = Hex.Decode("0123456789abcdeffedcba98765432100123456789abcdeffedcba98765432100123456789abcdeffedcba9876543210");byte[] key = Hex.Decode("0123456789abcdeffedcba9876543210");byte[] cipher = Hex.Decode("595298c7c6fd271f0402f804c33d3f66");bs = Sm4EncryptECB(key, plain, GmUtil.SM4_ECB_NOPADDING);log.Info("testSm4EncEcb: " + Hex.ToHexString(bs)); ;bs = Sm4DecryptECB(key, bs, GmUtil.SM4_ECB_NOPADDING);log.Info("testSm4DecEcb: " + Hex.ToHexString(bs));//读.sm2文件String sm2 = "MIIDHQIBATBHBgoqgRzPVQYBBAIBBgcqgRzPVQFoBDDW5/I9kZhObxXE9Vh1CzHdZhIhxn+3byBU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\nVfY6";bs = Convert.FromBase64String(sm2);String pwd = "cfca1234";GmUtil.Sm2Cert sm2Cert = GmUtil.readSm2File(bs, pwd);log.Info("testReadSm2File, pubkey: " + ((ECPublicKeyParameters)sm2Cert.publicKey).Q.ToString());log.Info("testReadSm2File, prikey: " + Hex.ToHexString(((ECPrivateKeyParameters)sm2Cert.privateKey).D.ToByteArray()));log.Info("testReadSm2File, certId: " + sm2Cert.certId);bs = Sm2Encrypt(System.Text.Encoding.UTF8.GetBytes("s"), ((ECPublicKeyParameters)sm2Cert.publicKey));log.Info("testSm2Enc dec: " + Hex.ToHexString(bs));bs = Sm2Decrypt(bs, ((ECPrivateKeyParameters)sm2Cert.privateKey));log.Info("testSm2Enc dec: " + System.Text.Encoding.UTF8.GetString(bs));msg = System.Text.Encoding.UTF8.GetBytes("message digest");userId = System.Text.Encoding.UTF8.GetBytes("userId");sig = SignSm3WithSm2(msg, userId, ((ECPrivateKeyParameters)sm2Cert.privateKey));log.Info("testSignSm3WithSm2: " + Hex.ToHexString(sig));log.Info("testVerifySm3WithSm2: " + VerifySm3WithSm2(msg, userId, sig, ((ECPublicKeyParameters)sm2Cert.publicKey)));}///*/}}经实践签名验签成功，感谢大佬分享!
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