4. .NET BC库SM2加密结果会带04,如果JAVA 那边报 Invalid point encoding 错误,删除加密结果前的04。如果对方要的是BASE64的加密结果,我们可以先转16进制字符串,裁掉04,再转BASE64。
string newCipherText = Hex.ToHexString(bysm2keyEncrypted);
if (newCipherText.StartsWith("04"))
{
newCipherText = newCipherText.Substring(2);
}
5. .NET BC库解密,密文前要加 “04”,否则会报 Invalid point encoding XX 。如果加密结果是BASE64的,先把BASE64转16进制字符串,再判断是否04开头。
如果JAVA源码,固定截取的头2位,那么就不用判断是否04开头了,直接写死:javaSM2 = "04" + javaSM2;
公钥:049EF573019D9A03B16B0BE44FC8A5B4E8E098F56034C97B312282DD0B4810AFC3CC759673ED0FC9B9DC7E6FA38F0E2B121E02654BF37EA6B63FAF2A0D6013EADF
- using Org.BouncyCastle.Asn1;
- using Org.BouncyCastle.Asn1.GM;
- using Org.BouncyCastle.Asn1.X9;
- using Org.BouncyCastle.Crypto;
- using Org.BouncyCastle.Crypto.Digests;
- using Org.BouncyCastle.Crypto.Engines;
- using Org.BouncyCastle.Crypto.Generators;
- using Org.BouncyCastle.Crypto.Parameters;
- using Org.BouncyCastle.Math;
- using Org.BouncyCastle.Security;
- using Org.BouncyCastle.Utilities;
- using Org.BouncyCastle.Utilities.Encoders;
- using Org.BouncyCastle.X509;
- using System;
- using System.Collections.Generic;
- using System.IO;
- namespace CommonUtils
- {
- /**
- * need lib:
- * BouncyCastle.Crypto.dll(http://www.bouncycastle.org/csharp/index.html)
-
- * 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
- {
- 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;
- }
- }
- /**
- *
- * @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 && algo.Contains("NoPadding")) 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 && algo.Contains("NoPadding")) 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");
- //NoPadding 的情况下需要校验数据长度是16的倍数.
- if (plain.Length % 16 != 0 && algo.Contains("NoPadding")) 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 && algo.Contains("NoPadding")) 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...}
- //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)));
- }
- }
- }
- using CommonUtils;
- using Org.BouncyCastle.Crypto;
- using Org.BouncyCastle.Math;
- using Org.BouncyCastle.Utilities.Encoders;
- using System.Text;
- void TestSM2Enc()
- {
- String privateKeyHex = "FAB8BBE670FAE338C9E9382B9FB6485225C11A3ECB84C938F10F20A93B6215F0";
- //完整公钥128位“9EF573019D9A03B16B0BE44FC8A5B4E8E098F56034C97B312282DD0B4810AFC3CC759673ED0FC9B9DC7E6FA38F0E2B121E02654BF37EA6B63FAF2A0D6013EADF”
- //完整公钥130位,比128位开头多了04“049EF573019D9A03B16B0BE44FC8A5B4E8E098F56034C97B312282DD0B4810AFC3CC759673ED0FC9B9DC7E6FA38F0E2B121E02654BF37EA6B63FAF2A0D6013EADF”
- string pubKeyHex = "049EF573019D9A03B16B0BE44FC8A5B4E8E098F56034C97B312282DD0B4810AFC3CC759673ED0FC9B9DC7E6FA38F0E2B121E02654BF37EA6B63FAF2A0D6013EADF";
- //如果是130位公钥,.NET 使用的话,把开头的04截取掉。
- if (pubKeyHex.Length == 130)
- {
- pubKeyHex = pubKeyHex.Substring(2, 128);
- }
- //公钥X,前64位
- String x = pubKeyHex.Substring(0, 64);
- //公钥Y,后64位
- String y = pubKeyHex.Substring(64);
- //获取公钥对象
- AsymmetricKeyParameter publicKey1 = GmUtil.GetPublickeyFromXY(new BigInteger(x, 16), new BigInteger(y, 16));
- String content = "1234泰酷拉NET";
- Console.WriteLine("待处理字符串:" + content);
- //Sm2Encrypt 对应 C1C3C2
- // Sm2EncryptOld :C1C2C3
- byte[] digestByte = GmUtil.Sm2Encrypt(Encoding.UTF8.GetBytes(content), publicKey1);
- string strSM2 = Hex.ToHexString(digestByte);
- Console.WriteLine("SM2加密后:" + strSM2);
- // 4. .NET BC库SM2加密结果会带04,如果JAVA 那边报 Invalid point encoding 错误,删除加密结果前的04。如果对方要的是BASE64的加密结果,我们可以先转16进制字符串,裁掉04,再转BASE64。
- string newCipherText = Hex.ToHexString(digestByte);
- if (newCipherText.StartsWith("04"))
- {
- newCipherText = newCipherText.Substring(2);
- }
- Console.WriteLine("截取04后,加密结果:" + newCipherText);
- //.NET 自加自解
- BigInteger d = new BigInteger(privateKeyHex, 16);
- //先拿到私钥对象,用ECPrivateKeyParameters 或 AsymmetricKeyParameter 都可以
- //ECPrivateKeyParameters bcecPrivateKey = CommonUtils.GmUtil.GetPrivatekeyFromD(d);
- AsymmetricKeyParameter bcecPrivateKey = CommonUtils.GmUtil.GetPrivatekeyFromD(d);
- byte[] byToDecrypt = Hex.Decode(strSM2);
- byte[] byDecrypted = GmUtil.Sm2Decrypt(byToDecrypt, bcecPrivateKey);
- String strDecrypted = Encoding.UTF8.GetString(byDecrypted);
- Console.WriteLine("SM2解密后:" + strDecrypted);
- //JAVA 结果,.NET来解
- string javaSM2 = "04a7aaa9fd91aea6f99787ef431e19cb9feecc5bfb97fb445ce529c78c04676f1792e06b3a2814d1bda80bd3f63e530c149fc03911f1b81007dc86cef2c03f30c7fecc8b256272f881a8f2f4e71351c45d5bb27e8531f1e2ea6d55150c88f5026b8783ccef867a510a313178cfd26177";
- //.NET BC库解密,密文前要加 “04”,否则会报 Invalid point encoding XX
- //如果加密结果是BASE64的,把BASE64转16进制字符串,再判断是否04开头。
- //如果对方源码,固定截取的头2位,那么就不用判断是否04开头了,直接写死:javaSM2 = "04" + javaSM2;
- if (!javaSM2.StartsWith("04"))
- {
- javaSM2 = "04" + javaSM2;
- }
- Console.WriteLine("javaSM2加密结果:" + javaSM2);
- byToDecrypt = Hex.Decode(javaSM2);
- byDecrypted = GmUtil.Sm2Decrypt(byToDecrypt, bcecPrivateKey);
- strDecrypted = Encoding.UTF8.GetString(byDecrypted);
- Console.WriteLine("java SM2解密后:" + strDecrypted);
- }
end.