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[英]BouncyCastle PrivateKey To X509Certificate2 PrivateKey (ECC)
[英]BouncyCastle PrivateKey To X509Certificate2 PrivateKey
我使用 BouncyCastle 创建证书
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);
这结束了
X509Certificate2 certificate = new X509Certificate2(DotNetUtilities.ToX509Certificate((Org.BouncyCastle.X509.X509Certificate)newCert));
现在,因为我的任务告诉我将证书和 PrivateKey 都存储在 X509Certificate2 object 中,所以我需要一种将 keypair.Private 转换为 X509Certificate2.Private 的方法。 有任何想法吗?
谢谢。
只是冗长,这是创建 X509Certificate2 证书后添加的完整代码:
RSA rsaPriv = DotNetUtilities.ToRSA(keypair.Private as RsaPrivateCrtKeyParameters);
certificate.PrivateKey = rsaPriv;
(当然可以优化成一行。)
对于任何试图将 X509Certificate2 导出到 PKCS12 并保留私钥的人。 这是我必须做的:
// Convert BouncyCastle X509 Certificate to .NET's X509Certificate
var cert = DotNetUtilities.ToX509Certificate(certificate);
var certBytes = cert.Export(X509ContentType.Pkcs12, "password");
// Convert X509Certificate to X509Certificate2
var cert2 = new X509Certificate2(certBytes, "password");
// Convert BouncyCastle Private Key to RSA
var rsaPriv = DotNetUtilities.ToRSA(issuerKeyPair.Private as RsaPrivateCrtKeyParameters);
// Setup RSACryptoServiceProvider with "KeyContainerName" set
var csp = new CspParameters();
csp.KeyContainerName = "KeyContainer";
var rsaPrivate = new RSACryptoServiceProvider(csp);
// Import private key from BouncyCastle's rsa
rsaPrivate.ImportParameters(rsaPriv.ExportParameters(true));
// Set private key on our X509Certificate2
cert2.PrivateKey = rsaPrivate;
// Export Certificate with private key
File.WriteAllBytes(@"C:\Temp\cert.pfx", cert2.Export(X509ContentType.Pkcs12, "password"));
如果您查看此问题的链接,您应该能够使用类似于DotNetUtilities.ToRSA(...)
的内容并将其返回值放入X509Certificate2
的PrivateKey
中。
我想分享我的方法:
pfx 到 System.Security.Cryptography.X509Certificates.X509Certificate2 使用充气城堡。
public static X509Certificate2 OpenCertificate(string pfxPath, string contrasenia)
{
System.Security.Cryptography.X509Certificates.X509Certificate2 x509 = default(System.Security.Cryptography.X509Certificates.X509Certificate2);
MemoryStream ms = new MemoryStream(File.ReadAllBytes(pfxPath));
Org.BouncyCastle.Pkcs.Pkcs12Store st = new Org.BouncyCastle.Pkcs.Pkcs12Store(ms, contrasenia.ToCharArray());
var alias = st.Aliases.Cast<string>().FirstOrDefault(p => st.IsCertificateEntry(p));
Org.BouncyCastle.Pkcs.X509CertificateEntry keyEntryX = st.GetCertificate(alias);
x509 = new System.Security.Cryptography.X509Certificates.X509Certificate2(DotNetUtilities.ToX509Certificate(keyEntryX.Certificate));
alias = st.Aliases.Cast<string>().FirstOrDefault(p => st.IsKeyEntry(p));
Org.BouncyCastle.Pkcs.AsymmetricKeyEntry keyEntry = st.GetKey(alias);
System.Security.Cryptography.RSACryptoServiceProvider intermediateProvider = (System.Security.Cryptography.RSACryptoServiceProvider)Org.BouncyCastle.Security.DotNetUtilities.ToRSA((Org.BouncyCastle.Crypto.Parameters.RsaPrivateCrtKeyParameters)keyEntry.Key);
x509.PrivateKey = intermediateProvider;
return x509;
}
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