//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"); bye[] 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); //c1
Buffer.BlockCopy(c1c2c3, c1c2c3.Length - c3Len, result, c1Len, c3Len); //c3
Buffer.BlockCopy(c1c2c3, c1Len, result, c1Len + c3Len, c1c2c3.Length - c1Len - c3Len); //c2
return 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->65
Buffer.BlockCopy(c1c3c2, c1Len + c3Len, result, c1Len, c1c3c2.Length - c1Len - c3Len); //c2
Buffer.BlockCopy(c1c3c2, c1Len, result, c1c3c2.Length - c3Len, c3Len); //c3
return 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<=32
byte[] 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.Name
fileStream = 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);
}
else
byteSource.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=1
Asn1Sequence priSeq = (Asn1Sequence)asn1Sequence[1];//private key
Asn1Sequence 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();
//Key
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);
// 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); //c1
Buffer.BlockCopy(c1c2c3, c1c2c3.Length - c3Len, result, c1Len, c3Len); //c3
Buffer.BlockCopy(c1c2c3, c1Len, result, c1Len + c3Len, c1c2c3.Length - c1Len - c3Len); //c2
return 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->65
Buffer.BlockCopy(c1c3c2, c1Len + c3Len, result, c1Len, c1c3c2.Length - c1Len - c3Len); //c2
Buffer.BlockCopy(c1c3c2, c1Len, result, c1c3c2.Length - c3Len, c3Len); //c3
return 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<=32
byte[] 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.Name
fileStream = 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);
}
else
byteSource.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=1
Asn1Sequence priSeq = (Asn1Sequence)asn1Sequence[1];//private key
Asn1Sequence 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...}
//Key
SM2Param 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: 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))); } ///*/
}
}
经实践签名验签成功，感谢大佬分享!