BouncyCastle的PrivateKey要X509Certificate2 PrivateKey

问题描述

我创建使用BouncyCastle的证书

I create a certificate using BouncyCastle

        var keypairgen = new RsaKeyPairGenerator();
        keypairgen.Init(new KeyGenerationParameters(new SecureRandom(new CryptoApiRandomGenerator()), 1024));

        var keypair = keypairgen.GenerateKeyPair();

        var gen = new X509V3CertificateGenerator();

        var CN = new X509Name("CN=" + certName);
        var SN = BigInteger.ProbablePrime(120, new Random());

        gen.SetSerialNumber(SN);
        gen.SetSubjectDN(CN);
        gen.SetIssuerDN(CN);
        gen.SetNotAfter(DateTime.Now.AddYears(1));
        gen.SetNotBefore(DateTime.Now.Subtract(new TimeSpan(7,0,0,0)));
        gen.SetSignatureAlgorithm("MD5WithRSA");
        gen.SetPublicKey(keypair.Public);

        gen.AddExtension(
            X509Extensions.AuthorityKeyIdentifier.Id,
            false,
            new AuthorityKeyIdentifier(
                SubjectPublicKeyInfoFactory.CreateSubjectPublicKeyInfo(keypair.Public),
                new GeneralNames(new GeneralName(CN)),
                SN
            ));

        gen.AddExtension(
            X509Extensions.ExtendedKeyUsage.Id,
            false,
            new ExtendedKeyUsage(new ArrayList()
            {
                new DerObjectIdentifier("1.3.6.1.5.5.7.3.1")
            }));

        var newCert = gen.Generate(keypair.Private);

本月底与

X509Certificate2 certificate = new X509Certificate2(DotNetUtilities.ToX509Certificate((Org.BouncyCastle.X509.X509Certificate)newCert));

现在，因为我的任务告诉我，来存储证书和PrivateKey在我需要一种方法来转换keypair.Private成X509Certificate2.Private的X509Certificate2对象。任何想法？

Now, because my assignment tells me to store both the Certificate and the PrivateKey in the X509Certificate2 object I need a way to convert the keypair.Private into a X509Certificate2.Private. Any ideas?

感谢。

推荐答案

如果你从this问题，你应该能够使用类似的东西来 DotNetUtilities.ToRSA（...）键，把它的返回值到 X509Certificate2 的 PrivateKey 。

If you look at the links from this question, you should be able to use something similar to DotNetUtilities.ToRSA(...) and put its return value into the X509Certificate2's PrivateKey.

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