问

即时生成自签名证书

  发布于 2023-01-19 16:09
  • 编程
  • c#
  • 文件
  • server
  • windows
  • cas

    • 我四处搜寻,但没有找到一个明确的例子. 我想按照以下步骤以编程方式(c#)创建自签名(自我)可信证书:

    步骤1:动态 创建根CA证书并将其添加到"受信任的根证书颁发机构"文件夹中的证书存储区

    我想要完成这个命令行工具的功能:

    makecert.exe -sk RootCA -sky签名-pe -n CN = MY_CA -r -sr LocalMachine -ss根MyCA.cer

    第2步: 根据以前创建的根CA证书创建证书,并将其放入证书存储区"Personal"文件夹中

    我想要完成这个命令行工具的功能:

    makecert.exe -sk server -sky exchange -pe -n CN = 127.0.0.1 -ir LocalMachine -is Root -ic MyCA.cer -sr LocalMachine -ss My MyCertificate.cer

    我想得到这个:
    在此输入图像描述

    我这样做了(参见下面的代码 - 第1步),不知道如何制作STEP2,任何帮助都将不胜感激.目标计算机是Windows XP/Seven. 我尝试了纯粹的.net方法和BouncyCastle库.

    makecert.exe -sk RootCA -sky signature -pe -n CN=MY_CA -r -sr LocalMachine -ss Root MyCA.cer

    pepo.. 32

    我编写了首先执行root证书的答案,然后发出了最终实体证书.以下是通过弹性生成自签名证书的一些示例:

    public static X509Certificate2 GenerateSelfSignedCertificate(string subjectName, string issuerName, AsymmetricKeyParameter issuerPrivKey,  int keyStrength = 2048)
{
    // Generating Random Numbers
    var randomGenerator = new CryptoApiRandomGenerator();
    var random = new SecureRandom(randomGenerator);

    // The Certificate Generator
    var certificateGenerator = new X509V3CertificateGenerator();

    // Serial Number
    var serialNumber = BigIntegers.CreateRandomInRange(BigInteger.One, BigInteger.ValueOf(Int64.MaxValue), random);
    certificateGenerator.SetSerialNumber(serialNumber);

    // Signature Algorithm
    const string signatureAlgorithm = "SHA256WithRSA";
    certificateGenerator.SetSignatureAlgorithm(signatureAlgorithm);

    // Issuer and Subject Name
    var subjectDN = new X509Name(subjectName);
    var issuerDN = new X509Name(issuerName);
    certificateGenerator.SetIssuerDN(issuerDN);
    certificateGenerator.SetSubjectDN(subjectDN);

    // Valid For
    var notBefore = DateTime.UtcNow.Date;
    var notAfter = notBefore.AddYears(2);

    certificateGenerator.SetNotBefore(notBefore);
    certificateGenerator.SetNotAfter(notAfter);

    // Subject Public Key
    AsymmetricCipherKeyPair subjectKeyPair;
    var keyGenerationParameters = new KeyGenerationParameters(random, keyStrength);
    var keyPairGenerator = new RsaKeyPairGenerator();
    keyPairGenerator.Init(keyGenerationParameters);
    subjectKeyPair = keyPairGenerator.GenerateKeyPair();

    certificateGenerator.SetPublicKey(subjectKeyPair.Public);

    // Generating the Certificate
    var issuerKeyPair = subjectKeyPair;

    // Selfsign certificate
    var certificate = certificateGenerator.Generate(issuerPrivKey, random);

    // Corresponding private key
    PrivateKeyInfo info = PrivateKeyInfoFactory.CreatePrivateKeyInfo(subjectKeyPair.Private);


    // Merge into X509Certificate2
    var x509 = new System.Security.Cryptography.X509Certificates.X509Certificate2(certificate.GetEncoded());

    var seq = (Asn1Sequence)Asn1Object.FromByteArray(info.PrivateKey.GetDerEncoded());
    if (seq.Count != 9)
        throw new PemException("malformed sequence in RSA private key");

    var rsa = new RsaPrivateKeyStructure(seq);
    RsaPrivateCrtKeyParameters rsaparams = new RsaPrivateCrtKeyParameters(
        rsa.Modulus, rsa.PublicExponent, rsa.PrivateExponent, rsa.Prime1, rsa.Prime2, rsa.Exponent1, rsa.Exponent2, rsa.Coefficient);

    x509.PrivateKey = DotNetUtilities.ToRSA(rsaparams);
    return x509;
}


public static AsymmetricKeyParameter GenerateCACertificate(string subjectName, int keyStrength = 2048)
{
    // Generating Random Numbers
    var randomGenerator = new CryptoApiRandomGenerator();
    var random = new SecureRandom(randomGenerator);

    // The Certificate Generator
    var certificateGenerator = new X509V3CertificateGenerator();

    // Serial Number
    var serialNumber = BigIntegers.CreateRandomInRange(BigInteger.One, BigInteger.ValueOf(Int64.MaxValue), random);
    certificateGenerator.SetSerialNumber(serialNumber);

    // Signature Algorithm
    const string signatureAlgorithm = "SHA256WithRSA";
    certificateGenerator.SetSignatureAlgorithm(signatureAlgorithm);

    // Issuer and Subject Name
    var subjectDN = new X509Name(subjectName);
    var issuerDN = subjectDN;
    certificateGenerator.SetIssuerDN(issuerDN);
    certificateGenerator.SetSubjectDN(subjectDN);

    // Valid For
    var notBefore = DateTime.UtcNow.Date;
    var notAfter = notBefore.AddYears(2);

    certificateGenerator.SetNotBefore(notBefore);
    certificateGenerator.SetNotAfter(notAfter);

    // Subject Public Key
    AsymmetricCipherKeyPair subjectKeyPair;
    var keyGenerationParameters = new KeyGenerationParameters(random, keyStrength);
    var keyPairGenerator = new RsaKeyPairGenerator();
    keyPairGenerator.Init(keyGenerationParameters);
    subjectKeyPair = keyPairGenerator.GenerateKeyPair();

    certificateGenerator.SetPublicKey(subjectKeyPair.Public);

    // Generating the Certificate
    var issuerKeyPair = subjectKeyPair;

    // Selfsign certificate
    var certificate = certificateGenerator.Generate(issuerKeyPair.Private, random);
    var x509 = new System.Security.Cryptography.X509Certificates.X509Certificate2(certificate.GetEncoded());

    // Add CA certificate to Root store
    addCertToStore(cert, StoreName.Root, StoreLocation.CurrentUser);

    return issuerKeyPair.Private;
}

    并添加到商店(您的代码略有修改):

    public static bool addCertToStore(System.Security.Cryptography.X509Certificates.X509Certificate2 cert, System.Security.Cryptography.X509Certificates.StoreName st, System.Security.Cryptography.X509Certificates.StoreLocation sl)
{
    bool bRet = false;

    try
    {
        X509Store store = new X509Store(st, sl);
        store.Open(OpenFlags.ReadWrite);
        store.Add(cert);

        store.Close();
    }
    catch
    {

    }

    return bRet;
}

    和用法:

    var caPrivKey = GenerateCACertificate("CN=root ca");
var cert = GenerateSelfSignedCertificate("CN=127.0.01", "CN=root ca", caPrivKey);
addCertToStore(cert, StoreName.My, StoreLocation.CurrentUser);

    我没有在@wakeupneo评论之后编译这个示例代码.@wakeupneo您可能会稍微编辑代码并为每个证书添加适当的扩展名.

    3 个回答

    • 我编写了首先执行root证书的答案,然后发出了最终实体证书.以下是通过弹性生成自签名证书的一些示例:

      public static X509Certificate2 GenerateSelfSignedCertificate(string subjectName, string issuerName, AsymmetricKeyParameter issuerPrivKey,  int keyStrength = 2048)
{
    // Generating Random Numbers
    var randomGenerator = new CryptoApiRandomGenerator();
    var random = new SecureRandom(randomGenerator);

    // The Certificate Generator
    var certificateGenerator = new X509V3CertificateGenerator();

    // Serial Number
    var serialNumber = BigIntegers.CreateRandomInRange(BigInteger.One, BigInteger.ValueOf(Int64.MaxValue), random);
    certificateGenerator.SetSerialNumber(serialNumber);

    // Signature Algorithm
    const string signatureAlgorithm = "SHA256WithRSA";
    certificateGenerator.SetSignatureAlgorithm(signatureAlgorithm);

    // Issuer and Subject Name
    var subjectDN = new X509Name(subjectName);
    var issuerDN = new X509Name(issuerName);
    certificateGenerator.SetIssuerDN(issuerDN);
    certificateGenerator.SetSubjectDN(subjectDN);

    // Valid For
    var notBefore = DateTime.UtcNow.Date;
    var notAfter = notBefore.AddYears(2);

    certificateGenerator.SetNotBefore(notBefore);
    certificateGenerator.SetNotAfter(notAfter);

    // Subject Public Key
    AsymmetricCipherKeyPair subjectKeyPair;
    var keyGenerationParameters = new KeyGenerationParameters(random, keyStrength);
    var keyPairGenerator = new RsaKeyPairGenerator();
    keyPairGenerator.Init(keyGenerationParameters);
    subjectKeyPair = keyPairGenerator.GenerateKeyPair();

    certificateGenerator.SetPublicKey(subjectKeyPair.Public);

    // Generating the Certificate
    var issuerKeyPair = subjectKeyPair;

    // Selfsign certificate
    var certificate = certificateGenerator.Generate(issuerPrivKey, random);

    // Corresponding private key
    PrivateKeyInfo info = PrivateKeyInfoFactory.CreatePrivateKeyInfo(subjectKeyPair.Private);


    // Merge into X509Certificate2
    var x509 = new System.Security.Cryptography.X509Certificates.X509Certificate2(certificate.GetEncoded());

    var seq = (Asn1Sequence)Asn1Object.FromByteArray(info.PrivateKey.GetDerEncoded());
    if (seq.Count != 9)
        throw new PemException("malformed sequence in RSA private key");

    var rsa = new RsaPrivateKeyStructure(seq);
    RsaPrivateCrtKeyParameters rsaparams = new RsaPrivateCrtKeyParameters(
        rsa.Modulus, rsa.PublicExponent, rsa.PrivateExponent, rsa.Prime1, rsa.Prime2, rsa.Exponent1, rsa.Exponent2, rsa.Coefficient);

    x509.PrivateKey = DotNetUtilities.ToRSA(rsaparams);
    return x509;
}


public static AsymmetricKeyParameter GenerateCACertificate(string subjectName, int keyStrength = 2048)
{
    // Generating Random Numbers
    var randomGenerator = new CryptoApiRandomGenerator();
    var random = new SecureRandom(randomGenerator);

    // The Certificate Generator
    var certificateGenerator = new X509V3CertificateGenerator();

    // Serial Number
    var serialNumber = BigIntegers.CreateRandomInRange(BigInteger.One, BigInteger.ValueOf(Int64.MaxValue), random);
    certificateGenerator.SetSerialNumber(serialNumber);

    // Signature Algorithm
    const string signatureAlgorithm = "SHA256WithRSA";
    certificateGenerator.SetSignatureAlgorithm(signatureAlgorithm);

    // Issuer and Subject Name
    var subjectDN = new X509Name(subjectName);
    var issuerDN = subjectDN;
    certificateGenerator.SetIssuerDN(issuerDN);
    certificateGenerator.SetSubjectDN(subjectDN);

    // Valid For
    var notBefore = DateTime.UtcNow.Date;
    var notAfter = notBefore.AddYears(2);

    certificateGenerator.SetNotBefore(notBefore);
    certificateGenerator.SetNotAfter(notAfter);

    // Subject Public Key
    AsymmetricCipherKeyPair subjectKeyPair;
    var keyGenerationParameters = new KeyGenerationParameters(random, keyStrength);
    var keyPairGenerator = new RsaKeyPairGenerator();
    keyPairGenerator.Init(keyGenerationParameters);
    subjectKeyPair = keyPairGenerator.GenerateKeyPair();

    certificateGenerator.SetPublicKey(subjectKeyPair.Public);

    // Generating the Certificate
    var issuerKeyPair = subjectKeyPair;

    // Selfsign certificate
    var certificate = certificateGenerator.Generate(issuerKeyPair.Private, random);
    var x509 = new System.Security.Cryptography.X509Certificates.X509Certificate2(certificate.GetEncoded());

    // Add CA certificate to Root store
    addCertToStore(cert, StoreName.Root, StoreLocation.CurrentUser);

    return issuerKeyPair.Private;
}

      并添加到商店(您的代码略有修改):

      public static bool addCertToStore(System.Security.Cryptography.X509Certificates.X509Certificate2 cert, System.Security.Cryptography.X509Certificates.StoreName st, System.Security.Cryptography.X509Certificates.StoreLocation sl)
{
    bool bRet = false;

    try
    {
        X509Store store = new X509Store(st, sl);
        store.Open(OpenFlags.ReadWrite);
        store.Add(cert);

        store.Close();
    }
    catch
    {

    }

    return bRet;
}

      和用法:

      var caPrivKey = GenerateCACertificate("CN=root ca");
var cert = GenerateSelfSignedCertificate("CN=127.0.01", "CN=root ca", caPrivKey);
addCertToStore(cert, StoreName.My, StoreLocation.CurrentUser);

      我没有在@wakeupneo评论之后编译这个示例代码.@wakeupneo您可能会稍微编辑代码并为每个证书添加适当的扩展名.

      2023-01-19 16:11 回答

    • 在整合多个帖子的更改后,我终于得到了这个代码!我希望这会为一些人节省很多时间!

      static void Main(string[] args)
{
    AsymmetricKeyParameter caPrivateKey = null;
    var caCert = GenerateCACertificate("CN=MyROOTCA", ref caPrivateKey);
    addCertToStore(caCert, StoreName.Root, StoreLocation.LocalMachine);

    var clientCert = GenerateSelfSignedCertificate("CN=127.0.0.1", "CN=MyROOTCA", caPrivateKey);

    var p12 = clientCert.Export(X509ContentType.Pfx);

    addCertToStore(new X509Certificate2(p12, (string)null, X509KeyStorageFlags.Exportable | X509KeyStorageFlags.PersistKeySet), StoreName.My, StoreLocation.LocalMachine);
}

public static X509Certificate2 GenerateSelfSignedCertificate(string subjectName, string issuerName, AsymmetricKeyParameter issuerPrivKey)
{
    const int keyStrength = 2048;

    // Generating Random Numbers
    CryptoApiRandomGenerator randomGenerator = new CryptoApiRandomGenerator();
    SecureRandom random = new SecureRandom(randomGenerator);

    // The Certificate Generator
    X509V3CertificateGenerator certificateGenerator = new X509V3CertificateGenerator();

    // Serial Number
    BigInteger serialNumber = BigIntegers.CreateRandomInRange(BigInteger.One, BigInteger.ValueOf(Int64.MaxValue), random);
    certificateGenerator.SetSerialNumber(serialNumber);

    // Signature Algorithm
    const string signatureAlgorithm = "SHA256WithRSA";
    certificateGenerator.SetSignatureAlgorithm(signatureAlgorithm);

    // Issuer and Subject Name
    X509Name subjectDN = new X509Name(subjectName);
    X509Name issuerDN = new X509Name(issuerName);
    certificateGenerator.SetIssuerDN(issuerDN);
    certificateGenerator.SetSubjectDN(subjectDN);

    // Valid For
    DateTime notBefore = DateTime.UtcNow.Date;
    DateTime notAfter = notBefore.AddYears(2);

    certificateGenerator.SetNotBefore(notBefore);
    certificateGenerator.SetNotAfter(notAfter);

    // Subject Public Key
    AsymmetricCipherKeyPair subjectKeyPair;
    var keyGenerationParameters = new KeyGenerationParameters(random, keyStrength);
    var keyPairGenerator = new RsaKeyPairGenerator();
    keyPairGenerator.Init(keyGenerationParameters);
    subjectKeyPair = keyPairGenerator.GenerateKeyPair();

    certificateGenerator.SetPublicKey(subjectKeyPair.Public);

    // Generating the Certificate
    AsymmetricCipherKeyPair issuerKeyPair = subjectKeyPair;

    // Selfsign certificate
    Org.BouncyCastle.X509.X509Certificate certificate = certificateGenerator.Generate(issuerPrivKey, random);


    // Corresponding private key
    PrivateKeyInfo info = PrivateKeyInfoFactory.CreatePrivateKeyInfo(subjectKeyPair.Private);


    // Merge into X509Certificate2
    X509Certificate2 x509 = new System.Security.Cryptography.X509Certificates.X509Certificate2(certificate.GetEncoded());

    Asn1Sequence seq = (Asn1Sequence)Asn1Object.FromByteArray(info.PrivateKey.GetDerEncoded());
    if (seq.Count != 9)
    {
        //throw new PemException("malformed sequence in RSA private key");
    }

    RsaPrivateKeyStructure rsa = new RsaPrivateKeyStructure(seq);
    RsaPrivateCrtKeyParameters rsaparams = new RsaPrivateCrtKeyParameters(
        rsa.Modulus, rsa.PublicExponent, rsa.PrivateExponent, rsa.Prime1, rsa.Prime2, rsa.Exponent1, rsa.Exponent2, rsa.Coefficient);

    x509.PrivateKey = ToDotNetKey(rsaparams); //x509.PrivateKey = DotNetUtilities.ToRSA(rsaparams);
    return x509;
}

public static AsymmetricAlgorithm ToDotNetKey(RsaPrivateCrtKeyParameters privateKey)
{
    var cspParams = new CspParameters
    {
        KeyContainerName = Guid.NewGuid().ToString(),
        KeyNumber = (int)KeyNumber.Exchange,
        Flags = CspProviderFlags.UseMachineKeyStore
    };

    var rsaProvider = new RSACryptoServiceProvider(cspParams);
    var parameters = new RSAParameters
    {
        Modulus = privateKey.Modulus.ToByteArrayUnsigned(),
        P = privateKey.P.ToByteArrayUnsigned(),
        Q = privateKey.Q.ToByteArrayUnsigned(),
        DP = privateKey.DP.ToByteArrayUnsigned(),
        DQ = privateKey.DQ.ToByteArrayUnsigned(),
        InverseQ = privateKey.QInv.ToByteArrayUnsigned(),
        D = privateKey.Exponent.ToByteArrayUnsigned(),
        Exponent = privateKey.PublicExponent.ToByteArrayUnsigned()
    };

    rsaProvider.ImportParameters(parameters);
    return rsaProvider;
}

public static X509Certificate2 GenerateCACertificate(string subjectName, ref AsymmetricKeyParameter CaPrivateKey)
{
    const int keyStrength = 2048;

    // Generating Random Numbers
    CryptoApiRandomGenerator randomGenerator = new CryptoApiRandomGenerator();
    SecureRandom random = new SecureRandom(randomGenerator);

    // The Certificate Generator
    X509V3CertificateGenerator certificateGenerator = new X509V3CertificateGenerator();

    // Serial Number
    BigInteger serialNumber = BigIntegers.CreateRandomInRange(BigInteger.One, BigInteger.ValueOf(Int64.MaxValue), random);
    certificateGenerator.SetSerialNumber(serialNumber);

    // Signature Algorithm
    const string signatureAlgorithm = "SHA256WithRSA";
    certificateGenerator.SetSignatureAlgorithm(signatureAlgorithm);

    // Issuer and Subject Name
    X509Name subjectDN = new X509Name(subjectName);
    X509Name issuerDN = subjectDN;
    certificateGenerator.SetIssuerDN(issuerDN);
    certificateGenerator.SetSubjectDN(subjectDN);

    // Valid For
    DateTime notBefore = DateTime.UtcNow.Date;
    DateTime notAfter = notBefore.AddYears(2);

    certificateGenerator.SetNotBefore(notBefore);
    certificateGenerator.SetNotAfter(notAfter);

    // Subject Public Key
    AsymmetricCipherKeyPair subjectKeyPair;
    KeyGenerationParameters keyGenerationParameters = new KeyGenerationParameters(random, keyStrength);
    RsaKeyPairGenerator keyPairGenerator = new RsaKeyPairGenerator();
    keyPairGenerator.Init(keyGenerationParameters);
    subjectKeyPair = keyPairGenerator.GenerateKeyPair();

    certificateGenerator.SetPublicKey(subjectKeyPair.Public);

    // Generating the Certificate
    AsymmetricCipherKeyPair issuerKeyPair = subjectKeyPair;

    // Selfsign certificate
    Org.BouncyCastle.X509.X509Certificate certificate = certificateGenerator.Generate(issuerKeyPair.Private, random);
    X509Certificate2 x509 = new System.Security.Cryptography.X509Certificates.X509Certificate2(certificate.GetEncoded());

    CaPrivateKey = issuerKeyPair.Private;

    return x509;
    //return issuerKeyPair.Private;
}

public static bool addCertToStore(System.Security.Cryptography.X509Certificates.X509Certificate2 cert, System.Security.Cryptography.X509Certificates.StoreName st, System.Security.Cryptography.X509Certificates.StoreLocation sl)
{
    bool bRet = false;

    try
    {
        X509Store store = new X509Store(st, sl);
        store.Open(OpenFlags.ReadWrite);
        store.Add(cert);

        store.Close();
    }
    catch
    {

    }

    return bRet;
}

      2023-01-19 16:11 回答

    • 好的,感谢您的帮助,这里是工作代码:

      private void button_Click(object sender, EventArgs e)
{
    AsymmetricKeyParameter myCAprivateKey = null;

    // Generate a root CA cert and obtain the privateKey
    X509Certificate2 MyRootCAcert = GenerateCACertificate("CN=MYTESTCA", ref myCAprivateKey);

    // Add CA certificate to store
    addCertToStore(MyRootCAcert, StoreName.Root, StoreLocation.LocalMachine);

    // Generate certificate based on the CA certificate privateKey
    X509Certificate2 MyCert = GenerateSelfSignedCertificate("CN=127.0.01", "CN=MYTESTCA", myCAprivateKey);

    // Add certificate to store
    addCertToStore(MyCert, StoreName.My, StoreLocation.LocalMachine);

    MessageBox.Show("Done!");
}


public static X509Certificate2 GenerateSelfSignedCertificate(string subjectName, string issuerName, AsymmetricKeyParameter issuerPrivKey)
{
    const int keyStrength = 2048;

    // Generating Random Numbers
    CryptoApiRandomGenerator randomGenerator = new CryptoApiRandomGenerator();
    SecureRandom random = new SecureRandom(randomGenerator);

    // The Certificate Generator
    X509V3CertificateGenerator certificateGenerator = new X509V3CertificateGenerator();

    // Serial Number
    BigInteger serialNumber = BigIntegers.CreateRandomInRange(BigInteger.One, BigInteger.ValueOf(Int64.MaxValue), random);
    certificateGenerator.SetSerialNumber(serialNumber);

    // Signature Algorithm
    const string signatureAlgorithm = "SHA256WithRSA";
    certificateGenerator.SetSignatureAlgorithm(signatureAlgorithm);

    // Issuer and Subject Name
    X509Name subjectDN = new X509Name(subjectName);
    X509Name issuerDN = new X509Name(issuerName);
    certificateGenerator.SetIssuerDN(issuerDN);
    certificateGenerator.SetSubjectDN(subjectDN);

    // Valid For
    DateTime notBefore = DateTime.UtcNow.Date;
    DateTime notAfter = notBefore.AddYears(2);

    certificateGenerator.SetNotBefore(notBefore);
    certificateGenerator.SetNotAfter(notAfter);

    // Subject Public Key
    AsymmetricCipherKeyPair subjectKeyPair;
    var keyGenerationParameters = new KeyGenerationParameters(random, keyStrength);
    var keyPairGenerator = new RsaKeyPairGenerator();
    keyPairGenerator.Init(keyGenerationParameters);
    subjectKeyPair = keyPairGenerator.GenerateKeyPair();

    certificateGenerator.SetPublicKey(subjectKeyPair.Public);

    // Generating the Certificate
    AsymmetricCipherKeyPair issuerKeyPair = subjectKeyPair;

    // Selfsign certificate
    Org.BouncyCastle.X509.X509Certificate certificate = certificateGenerator.Generate(issuerPrivKey, random);

    // Corresponding private key
    PrivateKeyInfo info = PrivateKeyInfoFactory.CreatePrivateKeyInfo(subjectKeyPair.Private);

    // Merge into X509Certificate2
    X509Certificate2 x509 = new System.Security.Cryptography.X509Certificates.X509Certificate2(certificate.GetEncoded());

    Asn1Sequence seq = (Asn1Sequence)Asn1Object.FromByteArray(info.PrivateKey.GetDerEncoded());
    if (seq.Count != 9)
    {
        //throw new PemException("malformed sequence in RSA private key");
    }

    RsaPrivateKeyStructure rsa = new RsaPrivateKeyStructure(seq);
    RsaPrivateCrtKeyParameters rsaparams = new RsaPrivateCrtKeyParameters(
        rsa.Modulus, rsa.PublicExponent, rsa.PrivateExponent, rsa.Prime1, rsa.Prime2, rsa.Exponent1, rsa.Exponent2, rsa.Coefficient);

    x509.PrivateKey = DotNetUtilities.ToRSA(rsaparams);
    return x509;

}

public static X509Certificate2 GenerateCACertificate(string subjectName, ref AsymmetricKeyParameter CaPrivateKey)
{
    const int keyStrength = 2048;

    // Generating Random Numbers
    CryptoApiRandomGenerator randomGenerator = new CryptoApiRandomGenerator();
    SecureRandom random = new SecureRandom(randomGenerator);

    // The Certificate Generator
    X509V3CertificateGenerator certificateGenerator = new X509V3CertificateGenerator();

    // Serial Number
    BigInteger serialNumber = BigIntegers.CreateRandomInRange(BigInteger.One, BigInteger.ValueOf(Int64.MaxValue), random);
    certificateGenerator.SetSerialNumber(serialNumber);

    // Signature Algorithm
    const string signatureAlgorithm = "SHA256WithRSA";
    certificateGenerator.SetSignatureAlgorithm(signatureAlgorithm);

    // Issuer and Subject Name
    X509Name subjectDN = new X509Name(subjectName);
    X509Name issuerDN = subjectDN;
    certificateGenerator.SetIssuerDN(issuerDN);
    certificateGenerator.SetSubjectDN(subjectDN);

    // Valid For
    DateTime notBefore = DateTime.UtcNow.Date;
    DateTime notAfter = notBefore.AddYears(2);

    certificateGenerator.SetNotBefore(notBefore);
    certificateGenerator.SetNotAfter(notAfter);

    // Subject Public Key
    AsymmetricCipherKeyPair subjectKeyPair;
    KeyGenerationParameters keyGenerationParameters = new KeyGenerationParameters(random, keyStrength);
    RsaKeyPairGenerator keyPairGenerator = new RsaKeyPairGenerator();
    keyPairGenerator.Init(keyGenerationParameters);
    subjectKeyPair = keyPairGenerator.GenerateKeyPair();

    certificateGenerator.SetPublicKey(subjectKeyPair.Public);

    // Generating the Certificate
    AsymmetricCipherKeyPair issuerKeyPair = subjectKeyPair;

    // Selfsign certificate
    Org.BouncyCastle.X509.X509Certificate certificate = certificateGenerator.Generate(issuerKeyPair.Private, random);
    X509Certificate2 x509 = new System.Security.Cryptography.X509Certificates.X509Certificate2(certificate.GetEncoded());

    CaPrivateKey = issuerKeyPair.Private;

    return x509;
    //return issuerKeyPair.Private;
}

public static bool addCertToStore(System.Security.Cryptography.X509Certificates.X509Certificate2 cert, System.Security.Cryptography.X509Certificates.StoreName st, System.Security.Cryptography.X509Certificates.StoreLocation sl)
{
    bool bRet = false;

    try
    {
        X509Store store = new X509Store(st, sl);
        store.Open(OpenFlags.ReadWrite);
        store.Add(cert);

        store.Close();
    }
    catch
    {

    }
    return bRet;
}

      2023-01-19 16:12 回答
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