// 上位 CA によって署名されている証明書の作成
public Certificate(PrivKey thisCertPrivateKey, CertificateStore parentCertificate, CertificateOptions options, CertificateOptions?alternativeIssuerDN = null)
{
X509Name name = options.GenerateName();
X509V3CertificateGenerator gen = new X509V3CertificateGenerator();
gen.SetSerialNumber(new BigInteger(options.Serial.ToArray()));
if (alternativeIssuerDN == null)
{
gen.SetIssuerDN(parentCertificate.PrimaryCertificate.CertData.IssuerDN);
}
else
{
gen.SetIssuerDN(alternativeIssuerDN.GenerateName());
}
gen.SetSubjectDN(name);
gen.SetNotBefore(DateTime.Now.AddDays(-1));
gen.SetNotAfter(options.Expires.UtcDateTime);
gen.SetPublicKey(thisCertPrivateKey.PublicKey.PublicKeyData);
X509Extension extConst = new X509Extension(true, new DerOctetString(new BasicConstraints(false)));
gen.AddExtension(X509Extensions.BasicConstraints, true, extConst.GetParsedValue());
X509Extension extBasicUsage = new X509Extension(false, new DerOctetString(new KeyUsage(options.KeyUsages)));
gen.AddExtension(X509Extensions.KeyUsage, false, extBasicUsage.GetParsedValue());
X509Extension extExtendedUsage = new X509Extension(false, new DerOctetString(new ExtendedKeyUsage(options.ExtendedKeyUsages)));
gen.AddExtension(X509Extensions.ExtendedKeyUsage, false, extExtendedUsage.GetParsedValue());
X509Extension altName = new X509Extension(false, new DerOctetString(options.GenerateAltNames()));
gen.AddExtension(X509Extensions.SubjectAlternativeName, false, altName.GetParsedValue());
this.CertData = gen.Generate(new Asn1SignatureFactory(options.GetSignatureAlgorithmOid(), parentCertificate.PrimaryPrivateKey.PrivateKeyData.Private, PkiUtil.NewSecureRandom()));
InitFields();
}
GenerateX509Certificate(string certName)
{
var keypairgen = new RsaKeyPairGenerator();
keypairgen.Init(new KeyGenerationParameters(new SecureRandom(new CryptoApiRandomGenerator()), 2048));
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.MaxValue);
gen.SetNotBefore(DateTime.Now.Subtract(new TimeSpan(7, 0, 0, 0)));
gen.SetSignatureAlgorithm("MD5WithRSA");
gen.SetPublicKey(keypair.Public);
var newCert = gen.Generate(keypair.Private);
var cert = DotNetUtilities.ToX509Certificate(newCert);
var certBytes = cert.Export(X509ContentType.Pkcs12, "password");
var cert2 = new X509Certificate2(certBytes, "password");
var rsaPriv = DotNetUtilities.ToRSA(keypair.Private as RsaPrivateCrtKeyParameters);
var csp = new CspParameters {
KeyContainerName = "KeyContainer"
};
var rsaPrivate = new RSACryptoServiceProvider(csp);
rsaPrivate.ImportParameters(rsaPriv.ExportParameters(true));
cert2.PrivateKey = rsaPrivate;
return(cert2);
}
/// <summary>
/// Generates the certificate for <see cref="ChallengeTypes.TlsAlpn01" /> validation.
/// </summary>
/// <param name="key">The key.</param>
/// <param name="token">The <see cref="ChallengeTypes.TlsAlpn01" /> token.</param>
/// <param name="subjectName">Name of the subject.</param>
/// <param name="certificateKey">The certificate key pair.</param>
/// <returns>The tls-alpn-01 certificate in PEM.</returns>
public static string TlsAlpnCertificate(this IKey key, string token, string subjectName, IKey certificateKey)
{
var keyAuthz = key.KeyAuthorization(token);
var hashed = DigestUtilities.CalculateDigest("SHA256", Encoding.UTF8.GetBytes(keyAuthz));
var(_, keyPair) = signatureAlgorithmProvider.GetKeyPair(certificateKey.ToDer());
var signatureFactory = new Asn1SignatureFactory(certificateKey.Algorithm.ToPkcsObjectId(), keyPair.Private, new SecureRandom());
var gen = new X509V3CertificateGenerator();
var certName = new X509Name($"CN={subjectName}");
var serialNo = BigInteger.ProbablePrime(120, new SecureRandom());
gen.SetSerialNumber(serialNo);
gen.SetSubjectDN(certName);
gen.SetIssuerDN(certName);
gen.SetNotBefore(DateTime.UtcNow);
gen.SetNotAfter(DateTime.UtcNow.AddDays(7));
gen.SetPublicKey(keyPair.Public);
// SAN for validation
var gns = new[] { new GeneralName(GeneralName.DnsName, subjectName) };
gen.AddExtension(X509Extensions.SubjectAlternativeName.Id, false, new GeneralNames(gns));
// ACME-TLS/1
gen.AddExtension(
acmeValidationV1Id,
true,
hashed);
var newCert = gen.Generate(signatureFactory);
using (var sr = new StringWriter())
{
var pemWriter = new PemWriter(sr);
pemWriter.WriteObject(newCert);
return(sr.ToString());
}
}
/// <summary>
/// Renews a <see cref="X509Certificate2"/>. This keeps all but the serial number, effective date, and expiration date./>
/// </summary>
/// <param name="certificate">Certificate being renewed</param>
/// <param name="effectiveDate">New effective date</param>
/// <param name="expirationDate">New expiration date</param>
/// <param name="caCertificate">Signing certificate</param>
/// <returns>New <seealso cref="X509Certificate2"/> renewed from <paramref name="certificate"/></returns>
public static X509Certificate2 Renew(X509Certificate2 certificate, DateTime effectiveDate, DateTime expirationDate,
X509Certificate2 caCertificate)
{
AsymmetricKeyParameter signingKey = caCertificate == null ? null : Certificate.TransformRSAPrivateKey((RSACryptoServiceProvider)caCertificate.PrivateKey);
var privateKeyParameter = TransformRSAPrivateKey((RSACryptoServiceProvider)certificate.PrivateKey);
var bcCert = DotNetUtilities.FromX509Certificate(certificate);
var publicKeyParameter = bcCert.GetPublicKey();
AsymmetricCipherKeyPair keyPair = new AsymmetricCipherKeyPair(publicKeyParameter, privateKeyParameter);
X509V3CertificateGenerator certGen = new X509V3CertificateGenerator();
BigInteger serialNumber = CreateSerialNumber();
certGen.SetSerialNumber(serialNumber);
certGen.SetIssuerDN(bcCert.IssuerDN);
// Converted time to Universal Time so that the time set when calling Generate is the same as the time specified
certGen.SetNotBefore(effectiveDate.ToUniversalTime());
certGen.SetNotAfter(expirationDate.ToUniversalTime());
certGen.SetSubjectDN(bcCert.SubjectDN);
certGen.SetPublicKey(keyPair.Public);
certGen.SetSignatureAlgorithm(SIGNATURE_ALGORITHM);
// Copy all extensions
foreach (var ext in certificate.Extensions)
{
certGen.CopyAndAddExtension(ext.Oid.Value, ext.Critical, bcCert);
}
Org.BouncyCastle.X509.X509Certificate bcNewCert = certGen.Generate(signingKey ?? keyPair.Private);
X509Certificate2 dotNetCert = new X509Certificate2(bcNewCert.GetEncoded())
{
// Restore private key
PrivateKey = certificate.PrivateKey
};
return(dotNetCert);
}
public static AsymmetricKeyParameter CreatePrivateKeyResource(string subjectName = "CN=root")
{
const 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(long.MaxValue), random);
certificateGenerator.SetSerialNumber(serialNumber);
// 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(70);
certificateGenerator.SetNotBefore(notBefore);
certificateGenerator.SetNotAfter(notAfter);
// Subject Public Key
var keyGenerationParameters = new KeyGenerationParameters(random, keyStrength);
var keyPairGenerator = new RsaKeyPairGenerator();
keyPairGenerator.Init(keyGenerationParameters);
var subjectKeyPair = keyPairGenerator.GenerateKeyPair();
return(subjectKeyPair.Private);
}
/// <summary>
/// Generate the certificate
/// </summary>
/// <param name="certName">Certificate name</param>
/// <param name="certPublicKey">Certificate public key</param>
/// <param name="certPublicKeyInfo">Certificate public key info</param>
/// <param name="issuer">Issuer name</param>
/// <param name="issuerPublicKey">Issuer public key</param>
/// <param name="issuerPrivateKey">Issuer private key</param>
/// <param name="issuerSerialNumber">Issuer serial number</param>
/// <returns>X509Certificate2 Certificate</returns>
private X509Certificate2 GenerateCertificate(X509Name certName, AsymmetricKeyParameter certPublicKey, SubjectPublicKeyInfo certPublicKeyInfo,
X509Name issuer, AsymmetricKeyParameter issuerPublicKey, AsymmetricKeyParameter issuerPrivateKey, BigInteger issuerSerialNumber)
{
var randomGenerator = new CryptoApiRandomGenerator();
var random = new SecureRandom(randomGenerator);
ISignatureFactory factory = new Asn1SignatureFactory("SHA256withRSA", issuerPrivateKey, random);
X509V3CertificateGenerator builder = new X509V3CertificateGenerator();
builder.SetSerialNumber(new BigInteger(16, new SecureRandom(randomGenerator)));
builder.SetIssuerDN(issuer);
builder.SetSubjectDN(certName);
builder.SetPublicKey(certPublicKey);
builder.SetNotBefore(DateTime.UtcNow);
builder.SetNotAfter(DateTime.UtcNow.AddDays(_config.DeviceCertificateValidityDays));
builder.AddExtension(X509Extensions.KeyUsage.Id, true, new X509KeyUsage(X509KeyUsage.DigitalSignature | X509KeyUsage.KeyEncipherment));
builder.AddExtension(X509Extensions.BasicConstraints.Id, true, new BasicConstraints(false));
var subjectAlternativeNames = new Asn1Encodable[] { new GeneralName(GeneralName.DnsName, certName.GetValueList()[0].ToString()) };
var subjectAlternativeNamesExtension = new DerSequence(subjectAlternativeNames);
builder.AddExtension(X509Extensions.SubjectAlternativeName.Id, false, subjectAlternativeNamesExtension);
builder.AddExtension(X509Extensions.ExtendedKeyUsage.Id, false, new ExtendedKeyUsage(new KeyPurposeID[]
{
KeyPurposeID.IdKPClientAuth,
KeyPurposeID.IdKPServerAuth
}
));
builder.AddExtension(X509Extensions.AuthorityKeyIdentifier.Id, false, GetAuthorityKeyIdentifier(issuer, issuerPublicKey, issuerSerialNumber));
builder.AddExtension(X509Extensions.SubjectKeyIdentifier.Id, false, new SubjectKeyIdentifier(certPublicKeyInfo));
// Sign the certificate
Org.BouncyCastle.X509.X509Certificate newCertificate = builder.Generate(factory);
return(new X509Certificate2(DotNetUtilities.ToX509Certificate(newCertificate)));
}
public static X509Certificate2 CreateCertificate(string certName, X509Certificate2 ca, int keyStrength)
{
var caCert = DotNetUtilities.FromX509Certificate(ca);
var random = new SecureRandom(new CryptoApiRandomGenerator());
var keyPairGen = new RsaKeyPairGenerator();
keyPairGen.Init(new KeyGenerationParameters(random, keyStrength));
AsymmetricCipherKeyPair keyPair = keyPairGen.GenerateKeyPair();
var certificateGenerator = new X509V3CertificateGenerator();
var CN = new X509Name("CN=" + certName);
var SN = BigInteger.ProbablePrime(120, random);
certificateGenerator.SetSerialNumber(SN);
certificateGenerator.SetSubjectDN(CN);
certificateGenerator.SetIssuerDN(caCert.IssuerDN);
certificateGenerator.SetNotAfter(DateTime.MaxValue);
certificateGenerator.SetNotBefore(DateTime.UtcNow.Subtract(new TimeSpan(1, 0, 0, 0)));
certificateGenerator.SetPublicKey(keyPair.Public);
certificateGenerator.AddExtension(X509Extensions.SubjectKeyIdentifier, false, new SubjectKeyIdentifierStructure(keyPair.Public));
certificateGenerator.AddExtension(X509Extensions.AuthorityKeyIdentifier, false, new AuthorityKeyIdentifierStructure(caCert.GetPublicKey()));
var caKeyPair = DotNetUtilities.GetKeyPair(ca.PrivateKey);
ISignatureFactory signatureFactory = new Asn1SignatureFactory("SHA512WITHRSA", caKeyPair.Private, random);
var certificate = certificateGenerator.Generate(signatureFactory);
certificate.Verify(caCert.GetPublicKey());
byte[] pkcs12Bytes = DotNetUtilities.ToX509Certificate(certificate).Export(X509ContentType.Pkcs12, Settings.CertificatePassword);
var certificate2 = new X509Certificate2(pkcs12Bytes, Settings.CertificatePassword);
certificate2.PrivateKey = DotNetUtilities.ToRSA(keyPair.Private as RsaPrivateCrtKeyParameters);
return(certificate2);
}
public static Org.BouncyCastle.X509.X509Certificate CreateCert(String cn,
AsymmetricKeyParameter pubKey,
AsymmetricKeyParameter privKey)
{
X509V3CertificateGenerator certGen = new X509V3CertificateGenerator();
certGen.SetSerialNumber(BigInteger.One);
certGen.SetIssuerDN(new X509Name(cn));
certGen.SetNotBefore(DateTime.UtcNow.AddDays(-30));
certGen.SetNotAfter(DateTime.UtcNow.AddDays(30));
certGen.SetSubjectDN(new X509Name(cn));
certGen.SetPublicKey(pubKey);
certGen.SetSignatureAlgorithm("SHA1WithRSAEncryption");
Org.BouncyCastle.X509.X509Certificate cert = certGen.Generate(privKey);
cert.CheckValidity(DateTime.UtcNow);
cert.Verify(pubKey);
return(cert);
}
public static X509Certificate GenerateEndEntityCert(
AsymmetricKeyParameter entityKey,
AsymmetricKeyParameter caKey,
X509Certificate caCert)
{
X509V3CertificateGenerator certGen = new X509V3CertificateGenerator();
certGen.SetSerialNumber(BigInteger.One);
certGen.SetIssuerDN(PrincipalUtilities.GetSubjectX509Principal(caCert));
certGen.SetNotBefore(DateTime.UtcNow.AddSeconds(-50));
certGen.SetNotAfter(DateTime.UtcNow.AddSeconds(50));
certGen.SetSubjectDN(new X509Name("CN=Test End Certificate"));
certGen.SetPublicKey(entityKey);
certGen.SetSignatureAlgorithm("SHA256WithRSAEncryption");
certGen.AddExtension(X509Extensions.AuthorityKeyIdentifier, false, new AuthorityKeyIdentifierStructure(caCert));
certGen.AddExtension(X509Extensions.SubjectKeyIdentifier, false, new SubjectKeyIdentifierStructure(entityKey));
certGen.AddExtension(X509Extensions.BasicConstraints, true, new BasicConstraints(false));
certGen.AddExtension(X509Extensions.KeyUsage, true, new KeyUsage(KeyUsage.DigitalSignature | KeyUsage.KeyEncipherment));
return(certGen.Generate(caKey));
}
public static Tuple <SigningCredentials, X509Certificate2> GenerateSigningInformation()
{
var kp = GenereateKeys();
var gen = new X509V3CertificateGenerator();
var certName = new X509Name("CN=Test_" + Guid.NewGuid());
var serialNo = BigInteger.ProbablePrime(120, new Random());
gen.SetSerialNumber(serialNo);
gen.SetSubjectDN(certName);
gen.SetIssuerDN(certName);
gen.SetNotAfter(DateTime.Now.AddYears(100));
gen.SetNotBefore(DateTime.Now.Subtract(new TimeSpan(7, 0, 0, 0)));
gen.SetPublicKey(kp.Public);
gen.AddExtension(
X509Extensions.AuthorityKeyIdentifier.Id,
false,
new AuthorityKeyIdentifier(
SubjectPublicKeyInfoFactory.CreateSubjectPublicKeyInfo(kp.Public),
new GeneralNames(new GeneralName(certName)),
serialNo));
gen.AddExtension(
X509Extensions.ExtendedKeyUsage.Id,
false,
new ExtendedKeyUsage(new ArrayList()
{
new DerObjectIdentifier("1.3.6.1.5.5.7.3.1")
}));
var signatureFactory = new Asn1SignatureFactory("MD5WithRSA", kp.Private);
var x509Certificate = new X509Certificate2(gen.Generate(signatureFactory).GetEncoded());
var rsa = ToRsaParameters((RsaPrivateCrtKeyParameters)kp.Private);
var signingCredentials = new SigningCredentials(new RsaSecurityKey(rsa), SecurityAlgorithms.RsaSha256Signature);
return(new Tuple <SigningCredentials, X509Certificate2>(signingCredentials, x509Certificate));
}
public static X509Certificate2 SampleTEST(SecureString samplPwd)
{
// Keypair Generator
RsaKeyPairGenerator kpGenerator = new RsaKeyPairGenerator();
kpGenerator.Init(new KeyGenerationParameters(new SecureRandom(new CryptoApiRandomGenerator()), 2048));
// Create a keypair
AsymmetricCipherKeyPair kp = kpGenerator.GenerateKeyPair();
var privateKey = (RsaPrivateCrtKeyParameters)kp.Private;
// Certificate Generator
X509V3CertificateGenerator cGenerator = new X509V3CertificateGenerator();
cGenerator.SetSerialNumber(BigInteger.ProbablePrime(120, new Random()));
cGenerator.SetSubjectDN(new X509Name("CN=" + "azureworking"));
cGenerator.SetIssuerDN(new X509Name("CN=" + "azureworking"));
cGenerator.SetNotBefore(DateTime.Now.Date.Subtract(new TimeSpan(10, 0, 0, 0)));
cGenerator.SetNotAfter(DateTime.Now.Add(new TimeSpan(365, 0, 0, 0))); // Expire in 1 year
const string signatureAlgorithm = "SHA1WithRSA";
cGenerator.SetSignatureAlgorithm(signatureAlgorithm);
cGenerator.SetPublicKey(kp.Public); // Only the public key should be used here!
Org.BouncyCastle.X509.X509Certificate cert = cGenerator.Generate(kp.Private); // Create a self-signed cert
var dotNetPrivateKey = ToDotNetKey(privateKey);
byte[] certStream = DotNetUtilities.ToX509Certificate(cert).Export(X509ContentType.Pkcs12, samplPwd);
X509Certificate2 certToReturn = new X509Certificate2(certStream, samplPwd, X509KeyStorageFlags.Exportable | X509KeyStorageFlags.PersistKeySet);
certToReturn.PrivateKey = dotNetPrivateKey;
return(certToReturn);
}
public X509Certificate2 MakeCertificate(string password, string issuedToDomainName, string friendlyName, int validMonths)
{
_certificateGenerator.Reset();
_certificateGenerator.SetSignatureAlgorithm(SignatureAlgorithm);
var serialNumber = BigIntegers.CreateRandomInRange(BigInteger.One, BigInteger.ValueOf(Int64.MaxValue), _random);
_certificateGenerator.SetSerialNumber(serialNumber);
_certificateGenerator.SetSubjectDN(new X509Name(issuedToDomainName));
_certificateGenerator.SetIssuerDN(_issuer);
var utcNow = DateTime.UtcNow.AddDays(-1);
_certificateGenerator.SetNotBefore(utcNow);
_certificateGenerator.SetNotAfter(utcNow.AddMonths(validMonths));
var keyGenerationParameters = new KeyGenerationParameters(_random, _strength);
var keyPairGenerator = new RsaKeyPairGenerator();
keyPairGenerator.Init(keyGenerationParameters);
var subjectKeyPair = keyPairGenerator.GenerateKeyPair();
_certificateGenerator.SetPublicKey(subjectKeyPair.Public);
var issuerKeyPair = subjectKeyPair;
var certificate = _certificateGenerator.Generate(issuerKeyPair.Private, _random);
var store = new Pkcs12Store();
var certificateEntry = new X509CertificateEntry(certificate);
store.SetCertificateEntry(friendlyName, certificateEntry);
store.SetKeyEntry(friendlyName, new AsymmetricKeyEntry(subjectKeyPair.Private), new[] { certificateEntry });
using (var stream = new MemoryStream())
{
store.Save(stream, password.ToCharArray(), _random);
return(new X509Certificate2(stream.ToArray(), password, X509KeyStorageFlags.PersistKeySet | X509KeyStorageFlags.Exportable));
}
}
private static X509Certificate CreateCertificate(
AsymmetricKeyParameter certificatePublicKey,
Asn1SignatureFactory signatureFactory,
BigInteger serialNumber,
X509Name issuerName,
X509Name subjectName,
DateTimeOffset notBefore,
DateTimeOffset notAfter,
Action <X509V3CertificateGenerator> customizeCertificate)
{
var generator = new X509V3CertificateGenerator();
generator.SetSerialNumber(serialNumber);
generator.SetIssuerDN(issuerName);
generator.SetNotBefore(notBefore.UtcDateTime);
generator.SetNotAfter(notAfter.UtcDateTime);
generator.SetSubjectDN(subjectName);
generator.SetPublicKey(certificatePublicKey);
customizeCertificate(generator);
return(generator.Generate(signatureFactory));
}
public static X509Certificate GenerateCertificate(AsymmetricCipherKeyPair keyPair, string certName,
string signatureAlgorithm)
{
signatureAlgorithm = signatureAlgorithm ?? DefaultSignatureAlgorithm;
var gen = new X509V3CertificateGenerator();
var cn = new X509Name("CN=" + certName);
var serial = BigInteger.ProbablePrime(120, new Random());
gen.SetSerialNumber(serial);
gen.SetSubjectDN(cn);
gen.SetIssuerDN(cn);
gen.SetNotAfter(DateTime.MaxValue);
gen.SetNotBefore(DateTime.Now.Subtract(new TimeSpan(7, 0, 0, 0)));
gen.SetPublicKey(keyPair.Public);
var sf = new Asn1SignatureFactory(signatureAlgorithm, keyPair.Private);
var r = gen.Generate(sf);
return(DotNetUtilities.ToX509Certificate(r));
}
private static X509Certificate2 GenerateCA(string subjectName)
{
SecureRandom random = GetSecureRandom();
AsymmetricCipherKeyPair subjectKeyPair = GenerateKeyPair(random, 2048);
BigInteger serialNumber = GenerateSerialNumber(random);
var certificateGenerator = new X509V3CertificateGenerator();
certificateGenerator.AddIssuer(subjectName, subjectKeyPair, serialNumber);
certificateGenerator.SetSubjectDN(new X509Name(subjectName));
certificateGenerator.SetNotBefore(DateTime.UtcNow.Date);
certificateGenerator.SetNotAfter(DateTime.UtcNow.Date.AddYears(30));
certificateGenerator.SetPublicKey(subjectKeyPair.Public);
certificateGenerator.SetSerialNumber(serialNumber);
certificateGenerator.AddSubjectKeyIdentifier(subjectKeyPair);
certificateGenerator.AddBasicConstraints(isCertificateAuthority: true);
X509Certificate certificate = certificateGenerator.GenerateCertificateAsn1(subjectKeyPair, random);
return(ConvertCertificate(certificate, subjectKeyPair, random));
}
public void CreateCertificate(Key clientPublicKey, Key caPrivateKey, System.Security.Cryptography.X509Certificates.X509Certificate2 caCert)
{
if (_certificateDN != null)
{
DateTime startDate = DateTime.Now;
DateTime expiryDate = startDate.AddDays(365);
SecureRandom random = new SecureRandom(new CryptoApiRandomGenerator());
AsymmetricKeyParameter publicKey = clientPublicKey.GetPublicAsAsymmetricKeyParam;
var utilities = DotNetUtilities.FromX509Certificate(caCert);
ISignatureFactory signatureAlgorithm = new Asn1SignatureFactory("SHA256WITHRSA", caPrivateKey.GetPrivateAsAsymmetricKeyParam, random);
X509V3CertificateGenerator certGen = new X509V3CertificateGenerator();
X509Name subjectName = _certificateDN;
certGen.SetSerialNumber(BigInteger.ValueOf(DateTime.Now.Millisecond));
certGen.SetIssuerDN(utilities.SubjectDN);
certGen.SetNotBefore(startDate);
certGen.SetNotAfter(expiryDate);
certGen.SetSubjectDN(subjectName);
certGen.SetPublicKey(publicKey);
X509Certificate newCertificate = certGen.Generate(signatureAlgorithm);
_certificate = newCertificate;
SaveAsString();
}
}
public void CreateCertificate(Key clientPublicKey, Key caPrivateKey)
{
DateTime startDate = DateTime.Now;
DateTime expiryDate = startDate.AddDays(365);
SecureRandom random = new SecureRandom(new CryptoApiRandomGenerator());
AsymmetricKeyParameter publicKey = clientPublicKey.GetPublicAsAsymmetricKeyParam;
System.Security.Cryptography.X509Certificates.X509Certificate2 caCert2 = LoadPKCS12FromFile();
var utilities = DotNetUtilities.FromX509Certificate(caCert2);
ISignatureFactory signatureAlgorithm = new Asn1SignatureFactory("SHA256WITHRSA", caPrivateKey.GetPrivateAsAsymmetricKeyParam, random);
X509V3CertificateGenerator certGen = new X509V3CertificateGenerator();
X509Name subjectName = new X509Name("C=Poland, O=West Pomeranian University of Technology, OU=IT department, ST=Szczecin, CN=bm29690.wi.zut.edu.pl, serialNumber=29690, Surname=Maciej Bartłomiejczyk");
certGen.SetSerialNumber(BigInteger.ValueOf(DateTime.Now.Millisecond));
certGen.SetIssuerDN(utilities.SubjectDN);
certGen.SetNotBefore(startDate);
certGen.SetNotAfter(expiryDate);
certGen.SetSubjectDN(subjectName);
certGen.SetPublicKey(publicKey);
X509Certificate newCertificate = certGen.Generate(signatureAlgorithm);
_certificate = newCertificate;
}
public X509Certificate2 Generate()
{
subjectKeyPair = KeyRepository.Next();
if (Issuer == null)
{
issuerKeyPair = subjectKeyPair;
issuerName = SubjectName;
issuerSerialNumber = SerialNumber;
}
else
{
issuerName = Issuer.Subject;
issuerKeyPair = DotNetUtilities.GetKeyPair(Issuer.PrivateKey);
issuerSerialNumber = new BigInteger(Issuer.GetSerialNumber());
}
certificateGenerator.SetSerialNumber(SerialNumber);
certificateGenerator.SetSignatureAlgorithm("SHA256WithRSA");
certificateGenerator.SetIssuerDN(new X509Name(issuerName));
certificateGenerator.SetSubjectDN(new X509Name(SubjectName));
certificateGenerator.SetNotBefore(NotBefore);
certificateGenerator.SetNotAfter(NotAfter);
certificateGenerator.SetPublicKey(subjectKeyPair.Public);
AddAuthorityKeyIdentifier();
AddSubjectKeyIdentifier();
AddBasicConstraints();
AddKeyUsage();
AddExtendedKeyUsage();
AddSubjectAlternativeNames();
AddOcspPoints();
AddCrlDistributionPoints();
var certificate = certificateGenerator.Generate(issuerKeyPair.Private);
return(ConvertCertificate(certificate));
}
/// <summary>
/// Creates a new X509 certificate and returns its data in PEM format.
///
/// <see cref="PatchingCertificatePem"/> is generated using this method.
/// </summary>
public string GenerateNewCertificatePem()
{
var randomGenerator = new CryptoApiRandomGenerator();
var random = new SecureRandom(randomGenerator);
var certificateGenerator = new X509V3CertificateGenerator();
var serialNumber = BigIntegers.CreateRandomInRange(BigInteger.One, BigInteger.ValueOf(Int64.MaxValue), random);
certificateGenerator.SetSerialNumber(serialNumber);
// TODO: Figure out ISignatureFactory to avoid these deprecated methods
#pragma warning disable 618
certificateGenerator.SetSignatureAlgorithm("SHA256WithRSA");
#pragma warning restore 618
var subjectDn = new X509Name("cn=Unknown");
var issuerDn = subjectDn;
certificateGenerator.SetIssuerDN(issuerDn);
certificateGenerator.SetSubjectDN(subjectDn);
certificateGenerator.SetNotBefore(DateTime.UtcNow.Date.AddYears(-10));
certificateGenerator.SetNotAfter(DateTime.UtcNow.Date.AddYears(50));
var keyGenerationParameters = new KeyGenerationParameters(random, 2048);
var keyPairGenerator = new RsaKeyPairGenerator();
keyPairGenerator.Init(keyGenerationParameters);
var subjectKeyPair = keyPairGenerator.GenerateKeyPair();
certificateGenerator.SetPublicKey(subjectKeyPair.Public);
// TODO: Figure out ISignatureFactory to avoid these deprecated methods
#pragma warning disable 618
X509Certificate cert = certificateGenerator.Generate(subjectKeyPair.Private);
#pragma warning restore 618
using var writer = new StringWriter();
var pemWriter = new Org.BouncyCastle.OpenSsl.PemWriter(writer);
pemWriter.WriteObject(new PemObject("CERTIFICATE", cert.GetEncoded()));
pemWriter.WriteObject(subjectKeyPair.Private);
return(writer.ToString());
}
public static SX.X509Certificate2 GenerateCA(
string name,
int keySize,
int days)
{
var key = GenerateRsaKeyPair(Random, keySize);
var cert = new X509V3CertificateGenerator();
var subject = new X509Name($"CN={name}");
cert.SetIssuerDN(subject);
cert.SetSubjectDN(subject);
cert.SetSerialNumber(GenerateSerialNumber(Random));
SetDateTime(cert, days);
cert.SetPublicKey(key.Public);
SetKeyUsageCA(cert);
SetBasicConstraints(cert, true);
SetExtendedKeyUsage(cert);
SetuthorityKeyIdentifier(cert, key.Public);
SetSubjectPublicKey(cert, key.Public);
var x509 = cert.Generate(new Asn1SignatureFactory(PkcsObjectIdentifiers.Sha256WithRsaEncryption.Id, key.Private));
return(AsForm(x509, key, Random));
}
public static X509Certificate2 CreateX509Certificate2()
{
// generate new key pair
var keypairgen = new RsaKeyPairGenerator();
keypairgen.Init(new KeyGenerationParameters(new SecureRandom(), 2048));
var keypair = keypairgen.GenerateKeyPair();
// generate x509
var signatureFactory = new Asn1SignatureFactory("SHA256WithRSA", keypair.Private, new SecureRandom());
var generator = new X509V3CertificateGenerator();
var commonName = new X509Name("CN=test");
var serialNumber = BigInteger.ProbablePrime(120, new SecureRandom());
generator.SetSerialNumber(serialNumber);
generator.SetSubjectDN(commonName);
generator.SetIssuerDN(commonName);
generator.SetNotAfter(DateTime.UtcNow.AddYears(99));
generator.SetNotBefore(DateTime.UtcNow);
generator.SetPublicKey(keypair.Public);
var bouncyCert = generator.Generate(signatureFactory);
// convert to .NET certificate
var store = new Pkcs12Store();
var alias = bouncyCert.SubjectDN.ToString();
var certificateEntry = new X509CertificateEntry(bouncyCert);
store.SetCertificateEntry(alias, certificateEntry);
store.SetKeyEntry(alias, new AsymmetricKeyEntry(keypair.Private), new[] { certificateEntry });
var stream = new MemoryStream();
const string password = "******";
store.Save(stream, password.ToCharArray(), new SecureRandom());
return(new X509Certificate2(stream.ToArray(), password, X509KeyStorageFlags.PersistKeySet | X509KeyStorageFlags.Exportable));
}
/// <summary>
/// Set all mandatory fields.
/// </summary>
/// <param name="cg">The cert generator</param>
private void CreateMandatoryFields(X509V3CertificateGenerator cg)
{
m_subjectDN = new CertificateFactoryX509Name(SubjectName.Name);
// subject and issuer DN
m_issuerDN = null;
if (IssuerCAKeyCert != null)
{
m_issuerDN = new CertificateFactoryX509Name(IssuerCAKeyCert.Subject);
}
else
{
// self signed
m_issuerDN = m_subjectDN;
}
cg.SetIssuerDN(m_issuerDN);
cg.SetSubjectDN(m_subjectDN);
// valid for
cg.SetNotBefore(NotBefore.ToUniversalTime());
cg.SetNotAfter(NotAfter.ToUniversalTime());
// serial number
cg.SetSerialNumber(new BigInteger(1, m_serialNumber.Reverse().ToArray()));
}
private static X509Certificate2 GenerateCert()
{
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=" + "Jabra test");
var SN = BigInteger.ProbablePrime(120, new Random());
gen.SetSerialNumber(SN);
gen.SetSubjectDN(CN);
gen.SetIssuerDN(CN);
gen.SetNotAfter(DateTime.MaxValue);
gen.SetNotBefore(DateTime.Now.Subtract(new TimeSpan(7, 0, 0, 0)));
gen.SetSignatureAlgorithm("MD5WithRSA");
gen.SetPublicKey(keypair.Public);
var newCert = gen.Generate(keypair.Private);
return(new X509Certificate2(DotNetUtilities.ToX509Certificate((Org.BouncyCastle.X509.X509Certificate)newCert)));
}
public static X509Certificate2 GenerateSelfSigned(TimeSpan lifetime)
{
Guid guid = Guid.NewGuid();
DateTime now = DateTime.UtcNow;
SecureRandom rand = new SecureRandom();
//Generate a key pair
RsaKeyPairGenerator keyGen = new RsaKeyPairGenerator();
keyGen.Init(new Org.BouncyCastle.Crypto.KeyGenerationParameters(rand, 1024));
AsymmetricCipherKeyPair key = keyGen.GenerateKeyPair();
//Generate a certificate
X509Name dn = new X509Name("CN=" + guid.ToString());
X509V3CertificateGenerator certGen = new X509V3CertificateGenerator();
certGen.SetIssuerDN(dn);
certGen.SetSerialNumber(new BigInteger(1, guid.ToByteArray()));
certGen.SetSignatureAlgorithm("SHA1WITHRSA");
certGen.SetSubjectDN(dn);
certGen.SetPublicKey(key.Public);
certGen.SetNotBefore(now);
certGen.SetNotAfter(now.Add(lifetime));
Org.BouncyCastle.X509.X509Certificate bcCert = certGen.Generate(key.Private);
//Save it as pkcs12
MemoryStream p12Stream = new MemoryStream();
Pkcs12Store p12 = new Pkcs12Store();
p12.SetKeyEntry("sts", new AsymmetricKeyEntry(key.Private), new X509CertificateEntry[] { new X509CertificateEntry(bcCert) });
p12.Save(p12Stream, p12TmpPwd.ToCharArray(), rand);
//Load the pkcs12 as .Net Certificate
return(new X509Certificate2(p12Stream.ToArray(), p12TmpPwd, X509KeyStorageFlags.DefaultKeySet));
}
private static byte[] GenerateSelfSignedCertificate(string subjectName)
{
// Generating Random Numbers
CryptoApiRandomGenerator randomGenerator = new CryptoApiRandomGenerator();
SecureRandom random = new SecureRandom(randomGenerator);
// Subject Public Key
KeyGenerationParameters keyGenerationParameters = new KeyGenerationParameters(random, KeySize);
RsaKeyPairGenerator keyPairGenerator = new RsaKeyPairGenerator();
keyPairGenerator.Init(keyGenerationParameters);
AsymmetricCipherKeyPair subjectKeyPair = keyPairGenerator.GenerateKeyPair();
// The Certificate Generator
X509V3CertificateGenerator certificateGenerator = new X509V3CertificateGenerator();
certificateGenerator.SetSerialNumber(BigIntegers.CreateRandomInRange(BigInteger.One, BigInteger.ValueOf(long.MaxValue), random));
certificateGenerator.SetSignatureAlgorithm(SignatureAlgorithm);
certificateGenerator.SetIssuerDN(new X509Name(subjectName));
certificateGenerator.SetSubjectDN(new X509Name(subjectName));
certificateGenerator.SetNotBefore(DateTime.UtcNow.Date);
certificateGenerator.SetNotAfter(DateTime.UtcNow.Date);
certificateGenerator.AddExtension(X509Extensions.KeyUsage, true, new KeyUsage(KeyUsage.DigitalSignature | KeyUsage.KeyEncipherment));
certificateGenerator.AddExtension(X509Extensions.ExtendedKeyUsage.Id, false, new ExtendedKeyUsage(KeyPurposeID.IdKPServerAuth, KeyPurposeID.IdKPClientAuth));
certificateGenerator.SetPublicKey(subjectKeyPair.Public);
Org.BouncyCastle.X509.X509Certificate cert = certificateGenerator.Generate(subjectKeyPair.Private, random);
Pkcs12Store store = new Pkcs12StoreBuilder().SetUseDerEncoding(true).Build();
store.SetKeyEntry("unused", new AsymmetricKeyEntry(subjectKeyPair.Private), new X509CertificateEntry[] { new X509CertificateEntry(cert) });
using (MemoryStream stream = new MemoryStream())
{
store.Save(stream, new char[0], random);
return(stream.ToArray());
}
}
static X509V3CertificateGenerator GenerateTls(
X509Name issuerName,
AsymmetricKeyParameter issuerPublicKey,
X509Name subjectName,
AsymmetricKeyParameter subjectPublicKey,
int days,
string[] subjectNames
)
{
var cert = new X509V3CertificateGenerator();
cert.SetIssuerDN(issuerName);
cert.SetSubjectDN(subjectName);
cert.SetSerialNumber(GenerateSerialNumber(Random));
SetDateTime(cert, days);
cert.SetPublicKey(subjectPublicKey);
SetBasicConstraints(cert, false);
SetExtendedKeyUsage(cert);
SetuthorityKeyIdentifier(cert, issuerPublicKey);
SetKeyUsageTls(cert);
SetSubjectPublicKey(cert, subjectPublicKey);
SetSubjectAlternativeNames(cert, subjectNames);
return(cert);
}
/// <inheritdoc/>
public async Task <(X509Certificate Certificate, RsaKeyParameters Key)> GetLocalCertificateAsync(ApplicationDescription applicationDescription, ILogger logger = null)
{
string applicationUri = applicationDescription.ApplicationUri;
if (string.IsNullOrEmpty(applicationUri))
{
throw new ArgumentOutOfRangeException(nameof(applicationDescription), "Expecting ApplicationUri in the form of 'http://{hostname}/{appname}' -or- 'urn:{hostname}:{appname}'.");
}
string subjectName = null;
string hostName = null;
string appName = null;
UriBuilder appUri = new UriBuilder(applicationUri);
if (appUri.Scheme == "http" && !string.IsNullOrEmpty(appUri.Host))
{
var path = appUri.Path.Trim('/');
if (!string.IsNullOrEmpty(path))
{
hostName = appUri.Host;
appName = path;
subjectName = $"CN={appName},DC={hostName}";
}
}
if (appUri.Scheme == "urn")
{
var parts = appUri.Path.Split(new[] { ':' }, 2);
if (parts.Length == 2)
{
hostName = parts[0];
appName = parts[1];
subjectName = $"CN={appName},DC={hostName}";
}
}
if (subjectName == null)
{
throw new ArgumentOutOfRangeException(nameof(applicationDescription), "Expecting ApplicationUri in the form of 'http://{hostname}/{appname}' -or- 'urn:{hostname}:{appname}'.");
}
var crt = default(X509Certificate);
var key = default(RsaKeyParameters);
// Build 'own/certs' certificate store.
var ownCerts = new Org.BouncyCastle.Utilities.Collections.HashSet();
var ownCertsInfo = new DirectoryInfo(Path.Combine(this.pkiPath, "own", "certs"));
if (ownCertsInfo.Exists)
{
foreach (var info in ownCertsInfo.EnumerateFiles())
{
using (var crtStream = info.OpenRead())
{
var c = this.certParser.ReadCertificate(crtStream);
if (c != null)
{
ownCerts.Add(c);
}
}
}
}
IX509Store ownCertStore = X509StoreFactory.Create("Certificate/Collection", new X509CollectionStoreParameters(ownCerts));
// Select the newest certificate that matches by subject name.
var selector = new X509CertStoreSelector()
{
Subject = new X509Name(subjectName)
};
crt = ownCertStore.GetMatches(selector).OfType <X509Certificate>().OrderBy(c => c.NotBefore).LastOrDefault();
if (crt != null)
{
// If certificate found, verify alt-name, and retrieve private key.
var asn1OctetString = crt.GetExtensionValue(X509Extensions.SubjectAlternativeName);
if (asn1OctetString != null)
{
var asn1Object = X509ExtensionUtilities.FromExtensionValue(asn1OctetString);
GeneralNames gns = GeneralNames.GetInstance(asn1Object);
if (gns.GetNames().Any(n => n.TagNo == GeneralName.UniformResourceIdentifier && n.Name.ToString() == applicationUri))
{
var ki = new FileInfo(Path.Combine(this.pkiPath, "own", "private", $"{crt.SerialNumber}.key"));
if (ki.Exists)
{
using (var keyStream = new StreamReader(ki.OpenRead()))
{
var keyReader = new PemReader(keyStream);
var keyPair = keyReader.ReadObject() as AsymmetricCipherKeyPair;
if (keyPair != null)
{
key = keyPair.Private as RsaKeyParameters;
}
}
}
}
}
}
// If certificate and key are found, return to caller.
if (crt != null && key != null)
{
logger?.LogTrace($"Found certificate with subject alt name '{applicationUri}'.");
return(crt, key);
}
if (!this.CreateLocalCertificateIfNotExist)
{
return(null, null);
}
// Create new certificate
var subjectDN = new X509Name(subjectName);
// Create a keypair.
var kp = await Task.Run <AsymmetricCipherKeyPair>(() =>
{
RsaKeyPairGenerator kg = new RsaKeyPairGenerator();
kg.Init(new KeyGenerationParameters(this.rng, 2048));
return(kg.GenerateKeyPair());
});
key = kp.Private as RsaPrivateCrtKeyParameters;
// Create a certificate.
X509V3CertificateGenerator cg = new X509V3CertificateGenerator();
var subjectSN = BigInteger.ProbablePrime(120, this.rng);
cg.SetSerialNumber(subjectSN);
cg.SetSubjectDN(subjectDN);
cg.SetIssuerDN(subjectDN);
cg.SetNotBefore(DateTime.Now.Date.ToUniversalTime());
cg.SetNotAfter(DateTime.Now.Date.ToUniversalTime().AddYears(25));
cg.SetPublicKey(kp.Public);
cg.AddExtension(
X509Extensions.BasicConstraints.Id,
true,
new BasicConstraints(false));
cg.AddExtension(
X509Extensions.SubjectKeyIdentifier.Id,
false,
new SubjectKeyIdentifier(SubjectPublicKeyInfoFactory.CreateSubjectPublicKeyInfo(kp.Public)));
cg.AddExtension(
X509Extensions.AuthorityKeyIdentifier.Id,
false,
new AuthorityKeyIdentifier(SubjectPublicKeyInfoFactory.CreateSubjectPublicKeyInfo(kp.Public), new GeneralNames(new GeneralName(subjectDN)), subjectSN));
cg.AddExtension(
X509Extensions.SubjectAlternativeName,
false,
new GeneralNames(new[] { new GeneralName(GeneralName.UniformResourceIdentifier, applicationUri), new GeneralName(GeneralName.DnsName, hostName) }));
cg.AddExtension(
X509Extensions.KeyUsage,
true,
new KeyUsage(KeyUsage.DataEncipherment | KeyUsage.DigitalSignature | KeyUsage.NonRepudiation | KeyUsage.KeyCertSign | KeyUsage.KeyEncipherment));
cg.AddExtension(
X509Extensions.ExtendedKeyUsage,
true,
new ExtendedKeyUsage(KeyPurposeID.IdKPClientAuth, KeyPurposeID.IdKPServerAuth));
crt = cg.Generate(new Asn1SignatureFactory("SHA256WITHRSA", key, this.rng));
logger?.LogTrace($"Created certificate with subject alt name '{applicationUri}'.");
var keyInfo = new FileInfo(Path.Combine(this.pkiPath, "own", "private", $"{crt.SerialNumber}.key"));
if (!keyInfo.Directory.Exists)
{
Directory.CreateDirectory(keyInfo.DirectoryName);
}
else if (keyInfo.Exists)
{
keyInfo.Delete();
}
using (var keystream = new StreamWriter(keyInfo.OpenWrite()))
{
var pemwriter = new PemWriter(keystream);
pemwriter.WriteObject(key);
}
var crtInfo = new FileInfo(Path.Combine(this.pkiPath, "own", "certs", $"{crt.SerialNumber}.crt"));
if (!crtInfo.Directory.Exists)
{
Directory.CreateDirectory(crtInfo.DirectoryName);
}
else if (crtInfo.Exists)
{
crtInfo.Delete();
}
using (var crtstream = new StreamWriter(crtInfo.OpenWrite()))
{
var pemwriter = new PemWriter(crtstream);
pemwriter.WriteObject(crt);
}
return(crt, key);
}
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);
// Subject Public Key
AsymmetricCipherKeyPair subjectKeyPair;
var keyGenerationParameters = new KeyGenerationParameters(random, keyStrength);
var keyPairGenerator = new RsaKeyPairGenerator();
keyPairGenerator.Init(keyGenerationParameters);
subjectKeyPair = keyPairGenerator.GenerateKeyPair();
// Issuer and Subject Name
var subjectDN = new X509Name(subjectName);
var issuerDN = subjectDN;
certificateGenerator.SetIssuerDN(issuerDN);
certificateGenerator.SetSubjectDN(subjectDN);
// certificateGenerator.AddExtension(X509Extensions.BasicConstraints, true, new BasicConstraints(false));
certificateGenerator.AddExtension(X509Extensions.AuthorityKeyIdentifier, true, new AuthorityKeyIdentifier(SubjectPublicKeyInfoFactory.CreateSubjectPublicKeyInfo(subjectKeyPair.Public), new GeneralNames(new GeneralName(issuerDN)), serialNumber));
// Valid For
var notBefore = DateTime.UtcNow.Date;
var notAfter = notBefore.AddYears(2);
certificateGenerator.SetNotBefore(notBefore);
certificateGenerator.SetNotAfter(notAfter);
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
X509Store store = new X509Store(StoreName.Root, StoreLocation.LocalMachine);
store.Open(OpenFlags.ReadWrite);
store.Add(x509);
store.Close();
store = new X509Store(StoreName.TrustedPublisher, StoreLocation.LocalMachine);
store.Open(OpenFlags.ReadWrite);
store.Add(x509);
store.Close();
RsaPrivateCrtKeyParameters rsaparams = (RsaPrivateCrtKeyParameters)issuerKeyPair.Private;
x509.PrivateKey = DotNetUtilities.ToRSA(rsaparams);
store = new X509Store("PrivateCertStore", StoreLocation.CurrentUser);
store.Open(OpenFlags.ReadWrite);
store.Add(x509);
store.Close();
return(issuerKeyPair.Private);
}
/// <summary>
/// Creates a self signed application instance certificate.
/// </summary>
/// <param name="storeType">Type of certificate store (Directory) <see cref="CertificateStoreType"/>.</param>
/// <param name="storePath">The store path (syntax depends on storeType).</param>
/// <param name="password">The password to use to protect the certificate.</param>
/// <param name="applicationUri">The application uri (created if not specified).</param>
/// <param name="applicationName">Name of the application (optional if subjectName is specified).</param>
/// <param name="subjectName">The subject used to create the certificate (optional if applicationName is specified).</param>
/// <param name="domainNames">The domain names that can be used to access the server machine (defaults to local computer name if not specified).</param>
/// <param name="keySize">Size of the key (1024, 2048 or 4096).</param>
/// <param name="startTime">The start time.</param>
/// <param name="lifetimeInMonths">The lifetime of the key in months.</param>
/// <param name="hashSizeInBits">The hash size in bits.</param>
/// <param name="isCA">if set to <c>true</c> then a CA certificate is created.</param>
/// <param name="issuerCAKeyCert">The CA cert with the CA private key.</param>
/// <returns>The certificate with a private key.</returns>
public static X509Certificate2 CreateCertificate(
string storeType,
string storePath,
string password,
string applicationUri,
string applicationName,
string subjectName,
IList <String> domainNames,
ushort keySize,
DateTime startTime,
ushort lifetimeInMonths,
ushort hashSizeInBits,
bool isCA,
X509Certificate2 issuerCAKeyCert)
{
if (!String.IsNullOrEmpty(storeType) &&
storeType != CertificateStoreType.Directory)
{
throw new NotSupportedException("Cannot create a certificate for a non directory store.");
}
if (issuerCAKeyCert != null)
{
if (!issuerCAKeyCert.HasPrivateKey)
{
throw new NotSupportedException("Cannot sign with a CA certificate without a private key.");
}
throw new NotSupportedException("Signing with an issuer CA certificate is currently unsupported.");
}
// set default values.
SetSuitableDefaults(
ref applicationUri,
ref applicationName,
ref subjectName,
ref domainNames,
ref keySize,
ref lifetimeInMonths,
isCA);
// cert generators
SecureRandom random = new SecureRandom();
X509V3CertificateGenerator cg = new X509V3CertificateGenerator();
// Serial Number
BigInteger serialNumber = BigIntegers.CreateRandomInRange(BigInteger.One, BigInteger.ValueOf(Int64.MaxValue), random);
cg.SetSerialNumber(serialNumber);
// build name attributes
var nameOids = new ArrayList();
nameOids.Add(X509Name.DC);
nameOids.Add(X509Name.CN);
var nameValues = new ArrayList();
nameValues.Add(domainNames[0]);
nameValues.Add(applicationName);
// self signed
X509Name subjectDN = new X509Name(nameOids, nameValues);
X509Name issuerDN = subjectDN;
cg.SetIssuerDN(issuerDN);
cg.SetSubjectDN(subjectDN);
// valid for
cg.SetNotBefore(startTime);
cg.SetNotAfter(startTime.AddMonths(lifetimeInMonths));
// Private/Public Key
AsymmetricCipherKeyPair subjectKeyPair;
var keyGenerationParameters = new KeyGenerationParameters(random, keySize);
var keyPairGenerator = new RsaKeyPairGenerator();
keyPairGenerator.Init(keyGenerationParameters);
subjectKeyPair = keyPairGenerator.GenerateKeyPair();
cg.SetPublicKey(subjectKeyPair.Public);
// add extensions
// Subject key identifier
cg.AddExtension(X509Extensions.SubjectKeyIdentifier.Id, false,
new SubjectKeyIdentifier(SubjectPublicKeyInfoFactory.CreateSubjectPublicKeyInfo(subjectKeyPair.Public)));
// Basic constraints
cg.AddExtension(X509Extensions.BasicConstraints.Id, true, new BasicConstraints(isCA));
// Authority Key identifier
var issuerKeyPair = subjectKeyPair;
var issuerSerialNumber = serialNumber;
cg.AddExtension(X509Extensions.AuthorityKeyIdentifier.Id, false,
new AuthorityKeyIdentifier(SubjectPublicKeyInfoFactory.CreateSubjectPublicKeyInfo(subjectKeyPair.Public),
new GeneralNames(new GeneralName(issuerDN)), issuerSerialNumber));
if (!isCA)
{
// Key usage
cg.AddExtension(X509Extensions.KeyUsage, true,
new KeyUsage(KeyUsage.DataEncipherment | KeyUsage.DigitalSignature |
KeyUsage.NonRepudiation | KeyUsage.KeyCertSign | KeyUsage.KeyEncipherment));
// Extended Key usage
cg.AddExtension(X509Extensions.ExtendedKeyUsage, true,
new ExtendedKeyUsage(new List <DerObjectIdentifier>()
{
new DerObjectIdentifier("1.3.6.1.5.5.7.3.1"), // server auth
new DerObjectIdentifier("1.3.6.1.5.5.7.3.2"), // client auth
}));
// subject alternate name
cg.AddExtension(X509Extensions.SubjectAlternativeName, false,
new GeneralNames(new GeneralName[] {
new GeneralName(GeneralName.UniformResourceIdentifier, applicationUri),
new GeneralName(GeneralName.DnsName, domainNames[0])
}));
}
else
{
// Key usage CA
cg.AddExtension(X509Extensions.KeyUsage, true,
new KeyUsage(KeyUsage.CrlSign | KeyUsage.DigitalSignature | KeyUsage.KeyCertSign));
}
// sign certificate
ISignatureFactory signatureFactory =
new Asn1SignatureFactory((hashSizeInBits < 256) ? "SHA1WITHRSA" : "SHA256WITHRSA", subjectKeyPair.Private, random);
Org.BouncyCastle.X509.X509Certificate x509 = cg.Generate(signatureFactory);
// create pkcs12 store for cert and private key
X509Certificate2 certificate = null;
using (MemoryStream pfxData = new MemoryStream())
{
Pkcs12Store pkcsStore = new Pkcs12StoreBuilder().Build();
X509CertificateEntry[] chain = new X509CertificateEntry[1];
string passcode = "passcode";
chain[0] = new X509CertificateEntry(x509);
pkcsStore.SetKeyEntry(applicationName, new AsymmetricKeyEntry(subjectKeyPair.Private), chain);
pkcsStore.Save(pfxData, passcode.ToCharArray(), random);
// merge into X509Certificate2
certificate = CreateCertificateFromPKCS12(pfxData.ToArray(), passcode);
}
Utils.Trace(Utils.TraceMasks.Security, "Created new certificate: {0}", certificate.Thumbprint);
// add cert to the store.
if (!String.IsNullOrEmpty(storePath))
{
ICertificateStore store = null;
if (storeType == CertificateStoreType.Directory)
{
using (store = new DirectoryCertificateStore())
{
store.Open(storePath);
store.Add(certificate);
store.Close();
}
}
}
// note: this cert has a private key!
return(certificate);
}
static bool Gen(string summoner, string region, string password, string file)
{
try
{
//Later in your Code
//Requested Certificate Name
X509Name name = new X509Name("CN=" + summoner + " - " + region + ", OU=Ghostblade Replays, O=Arsslensoft");
//Key generation 2048bits
RsaKeyPairGenerator rkpg = new RsaKeyPairGenerator();
rkpg.Init(new KeyGenerationParameters(new SecureRandom(), 2048));
AsymmetricCipherKeyPair ackp = rkpg.GenerateKeyPair();
X509Certificate2 caCert = new X509Certificate2(GBReplay.Properties.Resources.GBSGN, "KGPAQW7894Q129D7Q1456W9A47897a9s7r5d6");
//PKCS #10 Certificate Signing Request
Pkcs10CertificationRequest csr = new Pkcs10CertificationRequest("SHA256WITHRSA", name, ackp.Public, null, ackp.Private);
AsymmetricKeyParameter publicKey = csr.GetPublicKey();
// Build a Version1 (No Extensions) Certificate
DateTime startDate = DateTime.Now.Subtract(new TimeSpan(1, 0, 0));
DateTime expiryDate = startDate.AddYears(5);
BigInteger serialNumber = new BigInteger(32, new Random());
X509V3CertificateGenerator certGen = new X509V3CertificateGenerator();
X509Name dnName = new X509Name(caCert.Subject);
certGen.SetSerialNumber(serialNumber);
certGen.SetIssuerDN(dnName);
certGen.SetNotBefore(startDate);
certGen.SetNotAfter(expiryDate);
certGen.SetSubjectDN(name);
certGen.SetSignatureAlgorithm("SHA256WITHRSA");
certGen.SetPublicKey(publicKey);
UserNotice unotice = new UserNotice(null, "This certificate must be only used with Ghostblade replays files. This certificate is a property of Arsslensoft any usage of its content without prior request is prohibited.");
PolicyQualifierInfo pqiunotice = new PolicyQualifierInfo(PolicyQualifierID.IdQtUnotice, unotice);
PolicyInformation p = new PolicyInformation(new DerObjectIdentifier("1.3.6.1.4.1.44215.1.3"), new DerSequence(new PolicyQualifierInfo[1] {
pqiunotice
}));
certGen.AddExtension(X509Extensions.BasicConstraints, true, new BasicConstraints(false));
certGen.AddExtension(X509Extensions.AuthorityKeyIdentifier, false, new AuthorityKeyIdentifierStructure(DotNetUtilities.FromX509Certificate(caCert).GetPublicKey()));
certGen.AddExtension(X509Extensions.SubjectKeyIdentifier, false, new SubjectKeyIdentifierStructure(publicKey));
certGen.AddExtension(X509Extensions.KeyUsage, false, new KeyUsage(KeyUsage.DigitalSignature));
certGen.AddExtension(X509Extensions.ExtendedKeyUsage, false, new ExtendedKeyUsage(new KeyPurposeID[] { KeyPurposeID.IdKPCodeSigning }));
certGen.AddExtension(X509Extensions.CertificatePolicies, false, new DerSequence(p));
Pkcs12Store pfx = new Pkcs12Store(new MemoryStream(GBReplay.Properties.Resources.GBSGN), "KGPAQW7894Q129D7Q1456W9A47897a9s7r5d6".ToCharArray());
string alias = null;
foreach (string al in pfx.Aliases)
{
if (pfx.IsKeyEntry(al) && pfx.GetKey(al).Key.IsPrivate)
{
alias = al;
break;
}
}
//get our Private Key to Sign with
// AsymmetricCipherKeyPair caPair = DotNetUtilities.GetKeyPair(caCert.PrivateKey);
AsymmetricKeyParameter caPair = pfx.GetKey(alias).Key;
Al.Security.X509.X509Certificate cert = certGen.Generate(caPair);
Pkcs12Store pk = new Pkcs12StoreBuilder().Build();
// Add a Certificate entry
X509CertificateEntry certEntry = new X509CertificateEntry(cert);
pk.SetCertificateEntry(cert.SubjectDN.ToString(), certEntry); // use DN as the Alias.
AsymmetricKeyEntry keyEntry = new AsymmetricKeyEntry(ackp.Private);
pk.SetKeyEntry(cert.SubjectDN.ToString(), keyEntry, new X509CertificateEntry[] { certEntry }); // Note that we only have 1 cert in the 'chain'
using (var filestream = new FileStream(file, FileMode.Create, FileAccess.ReadWrite))
pk.Save(filestream, password.ToCharArray(), new SecureRandom());
X509Certificate2 cer = new X509Certificate2(File.ReadAllBytes(file), password);
cer.Verify();
}
catch
{
return(false);
}
return(true);
}
public void TestCreationRSA()
{
IBigInteger rsaPubMod = new BigInteger(Base64.Decode("AIASoe2PQb1IP7bTyC9usjHP7FvnUMVpKW49iuFtrw/dMpYlsMMoIU2jupfifDpdFxIktSB4P+6Ymg5WjvHKTIrvQ7SR4zV4jaPTu56Ys0pZ9EDA6gb3HLjtU+8Bb1mfWM+yjKxcPDuFjwEtjGlPHg1Vq+CA9HNcMSKNn2+tW6qt"));
IBigInteger rsaPubExp = new BigInteger(Base64.Decode("EQ=="));
IBigInteger rsaPrivMod = new BigInteger(Base64.Decode("AIASoe2PQb1IP7bTyC9usjHP7FvnUMVpKW49iuFtrw/dMpYlsMMoIU2jupfifDpdFxIktSB4P+6Ymg5WjvHKTIrvQ7SR4zV4jaPTu56Ys0pZ9EDA6gb3HLjtU+8Bb1mfWM+yjKxcPDuFjwEtjGlPHg1Vq+CA9HNcMSKNn2+tW6qt"));
IBigInteger rsaPrivDP = new BigInteger(Base64.Decode("JXzfzG5v+HtLJIZqYMUefJfFLu8DPuJGaLD6lI3cZ0babWZ/oPGoJa5iHpX4Ul/7l3s1PFsuy1GhzCdOdlfRcQ=="));
IBigInteger rsaPrivDQ = new BigInteger(Base64.Decode("YNdJhw3cn0gBoVmMIFRZzflPDNthBiWy/dUMSRfJCxoZjSnr1gysZHK01HteV1YYNGcwPdr3j4FbOfri5c6DUQ=="));
IBigInteger rsaPrivExp = new BigInteger(Base64.Decode("DxFAOhDajr00rBjqX+7nyZ/9sHWRCCp9WEN5wCsFiWVRPtdB+NeLcou7mWXwf1Y+8xNgmmh//fPV45G2dsyBeZbXeJwB7bzx9NMEAfedchyOwjR8PYdjK3NpTLKtZlEJ6Jkh4QihrXpZMO4fKZWUm9bid3+lmiq43FwW+Hof8/E="));
IBigInteger rsaPrivP = new BigInteger(Base64.Decode("AJ9StyTVW+AL/1s7RBtFwZGFBgd3zctBqzzwKPda6LbtIFDznmwDCqAlIQH9X14X7UPLokCDhuAa76OnDXb1OiE="));
IBigInteger rsaPrivQ = new BigInteger(Base64.Decode("AM3JfD79dNJ5A3beScSzPtWxx/tSLi0QHFtkuhtSizeXdkv5FSba7lVzwEOGKHmW829bRoNxThDy4ds1IihW1w0="));
IBigInteger rsaPrivQinv = new BigInteger(Base64.Decode("Lt0g7wrsNsQxuDdB8q/rH8fSFeBXMGLtCIqfOec1j7FEIuYA/ACiRDgXkHa0WgN7nLXSjHoy630wC5Toq8vvUg=="));
RsaKeyParameters rsaPublic = new RsaKeyParameters(false, rsaPubMod, rsaPubExp);
RsaPrivateCrtKeyParameters rsaPrivate = new RsaPrivateCrtKeyParameters(rsaPrivMod, rsaPubExp, rsaPrivExp, rsaPrivP, rsaPrivQ, rsaPrivDP, rsaPrivDQ, rsaPrivQinv);
IDictionary attrs = new Hashtable();
attrs[X509Name.C] = "AU";
attrs[X509Name.O] = "The Legion of the Bouncy Castle";
attrs[X509Name.L] = "Melbourne";
attrs[X509Name.ST] = "Victoria";
attrs[X509Name.E] = "*****@*****.**";
IList ord = new ArrayList();
ord.Add(X509Name.C);
ord.Add(X509Name.O);
ord.Add(X509Name.L);
ord.Add(X509Name.ST);
ord.Add(X509Name.E);
IList values = new ArrayList();
values.Add("AU");
values.Add("The Legion of the Bouncy Castle");
values.Add("Melbourne");
values.Add("Victoria");
values.Add("*****@*****.**");
X509V3CertificateGenerator certGen = new X509V3CertificateGenerator();
certGen.SetSerialNumber(BigInteger.One);
certGen.SetIssuerDN(new X509Name(ord, attrs));
certGen.SetNotBefore(DateTime.UtcNow.AddDays(-1));
certGen.SetNotAfter(DateTime.UtcNow.AddDays(1));
certGen.SetSubjectDN(new X509Name(ord, attrs));
certGen.SetPublicKey(rsaPublic);
certGen.SetSignatureAlgorithm("MD5WithRSAEncryption");
X509Certificate cert = certGen.Generate(rsaPrivate);
// Assert.IsTrue((cert.IsValidNow && cert.Verify(rsaPublic)),"Certificate failed to be valid (RSA)");
cert.CheckValidity();
cert.Verify(rsaPublic);
//Console.WriteLine(ASN1Dump.DumpAsString(cert.ToAsn1Object()));
ISet dummySet = cert.GetNonCriticalExtensionOids();
if (dummySet != null)
{
foreach (string key in dummySet)
{
Console.WriteLine("\t{0}:\t{1}", key);
}
}
Console.WriteLine();
dummySet = cert.GetNonCriticalExtensionOids();
if (dummySet != null)
{
foreach (string key in dummySet)
{
Console.WriteLine("\t{0}:\t{1}", key);
}
}
Console.WriteLine();
}
public void TestCreationECDSA()
{
IBigInteger ECParraGX = new BigInteger(Base64.Decode("D/qWPNyogWzMM7hkK+35BcPTWFc9Pyf7vTs8uaqv"));
IBigInteger ECParraGY = new BigInteger(Base64.Decode("AhQXGxb1olGRv6s1LPRfuatMF+cx3ZTGgzSE/Q5R"));
IBigInteger ECParraH = new BigInteger(Base64.Decode("AQ=="));
IBigInteger ECParraN = new BigInteger(Base64.Decode("f///////////////f///nl6an12QcfvRUiaIkJ0L"));
IBigInteger ECPubQX = new BigInteger(Base64.Decode("HWWi17Yb+Bm3PYr/DMjLOYNFhyOwX1QY7ZvqqM+l"));
IBigInteger ECPubQY = new BigInteger(Base64.Decode("JrlJfxu3WGhqwtL/55BOs/wsUeiDFsvXcGhB8DGx"));
IBigInteger ECPrivD = new BigInteger(Base64.Decode("GYQmd/NF1B+He1iMkWt3by2Az6Eu07t0ynJ4YCAo"));
FPCurve curve = new FPCurve(
new BigInteger("883423532389192164791648750360308885314476597252960362792450860609699839"), // q
new BigInteger("7fffffffffffffffffffffff7fffffffffff8000000000007ffffffffffc", 16), // a
new BigInteger("6b016c3bdcf18941d0d654921475ca71a9db2fb27d1d37796185c2942c0a", 16)); // b
ECDomainParameters ecDomain =
new ECDomainParameters(curve, new FPPoint(curve, curve.FromBigInteger(ECParraGX), curve.FromBigInteger(ECParraGY)), ECParraN);
ECPublicKeyParameters ecPub = new ECPublicKeyParameters(
"ECDSA",
new FPPoint(curve,
curve.FromBigInteger(ECPubQX),
curve.FromBigInteger(ECPubQY)),
ecDomain);
ECPrivateKeyParameters ecPriv = new ECPrivateKeyParameters("ECDSA", ECPrivD, ecDomain);
IDictionary attrs = new Hashtable();
attrs[X509Name.C] = "AU";
attrs[X509Name.O] = "The Legion of the Bouncy Castle";
attrs[X509Name.L] = "Melbourne";
attrs[X509Name.ST] = "Victoria";
attrs[X509Name.E] = "*****@*****.**";
IList ord = new ArrayList();
ord.Add(X509Name.C);
ord.Add(X509Name.O);
ord.Add(X509Name.L);
ord.Add(X509Name.ST);
ord.Add(X509Name.E);
IList values = new ArrayList();
values.Add("AU");
values.Add("The Legion of the Bouncy Castle");
values.Add("Melbourne");
values.Add("Victoria");
values.Add("*****@*****.**");
X509V3CertificateGenerator certGen = new X509V3CertificateGenerator();
certGen.SetSerialNumber(BigInteger.One);
certGen.SetIssuerDN(new X509Name(ord, attrs));
certGen.SetNotBefore(DateTime.Today.Subtract(new TimeSpan(1, 0, 0, 0)));
certGen.SetNotAfter(DateTime.Today.AddDays(1));
certGen.SetSubjectDN(new X509Name(ord, attrs));
certGen.SetPublicKey(ecPub);
certGen.SetSignatureAlgorithm("SHA1WITHECDSA");
X509Certificate cert = certGen.Generate(ecPriv);
// Assert.IsTrue((cert.IsValidNow && cert.Verify(ecPub)), "Certificate failed to be valid (ECDSA)");
cert.CheckValidity();
cert.Verify(ecPub);
ISet dummySet = cert.GetNonCriticalExtensionOids();
if (dummySet != null)
{
foreach (string key in dummySet)
{
Console.WriteLine("\t{0}:\t{1}", key);
}
}
Console.WriteLine();
dummySet = cert.GetNonCriticalExtensionOids();
if (dummySet != null)
{
foreach (string key in dummySet)
{
Console.WriteLine("\t{0}:\t{1}", key);
}
}
Console.WriteLine();
}
public void TestCreationDSA()
{
IBigInteger DSAParaG = new BigInteger(Base64.Decode("AL0fxOTq10OHFbCf8YldyGembqEu08EDVzxyLL29Zn/t4It661YNol1rnhPIs+cirw+yf9zeCe+KL1IbZ/qIMZM="));
IBigInteger DSAParaP = new BigInteger(Base64.Decode("AM2b/UeQA+ovv3dL05wlDHEKJ+qhnJBsRT5OB9WuyRC830G79y0R8wuq8jyIYWCYcTn1TeqVPWqiTv6oAoiEeOs="));
IBigInteger DSAParaQ = new BigInteger(Base64.Decode("AIlJT7mcKL6SUBMmvm24zX1EvjNx"));
IBigInteger DSAPublicY = new BigInteger(Base64.Decode("TtWy2GuT9yGBWOHi1/EpCDa/bWJCk2+yAdr56rAcqP0eHGkMnA9s9GJD2nGU8sFjNHm55swpn6JQb8q0agrCfw=="));
IBigInteger DsaPrivateX = new BigInteger(Base64.Decode("MMpBAxNlv7eYfxLTZ2BItJeD31A="));
DsaParameters para = new DsaParameters(DSAParaP, DSAParaQ, DSAParaG);
DsaPrivateKeyParameters dsaPriv = new DsaPrivateKeyParameters(DsaPrivateX, para);
DsaPublicKeyParameters dsaPub = new DsaPublicKeyParameters(DSAPublicY, para);
IDictionary attrs = new Hashtable();
attrs[X509Name.C] = "AU";
attrs[X509Name.O] = "The Legion of the Bouncy Castle";
attrs[X509Name.L] = "Melbourne";
attrs[X509Name.ST] = "Victoria";
attrs[X509Name.E] = "*****@*****.**";
IList ord = new ArrayList();
ord.Add(X509Name.C);
ord.Add(X509Name.O);
ord.Add(X509Name.L);
ord.Add(X509Name.ST);
ord.Add(X509Name.E);
IList values = new ArrayList();
values.Add("AU");
values.Add("The Legion of the Bouncy Castle");
values.Add("Melbourne");
values.Add("Victoria");
values.Add("*****@*****.**");
X509V3CertificateGenerator certGen = new X509V3CertificateGenerator();
certGen.SetSerialNumber(BigInteger.One);
certGen.SetIssuerDN(new X509Name(ord, attrs));
certGen.SetNotBefore(DateTime.UtcNow.AddDays(-1));
certGen.SetNotAfter(DateTime.UtcNow.AddDays(1));
certGen.SetSubjectDN(new X509Name(ord, attrs));
certGen.SetPublicKey(dsaPub);
certGen.SetSignatureAlgorithm("SHA1WITHDSA");
X509Certificate cert = certGen.Generate(dsaPriv);
// Assert.IsTrue((cert.IsValidNow && cert.Verify(dsaPub)), "Certificate failed to be valid (DSA Test)");
cert.CheckValidity();
cert.Verify(dsaPub);
ISet dummySet = cert.GetNonCriticalExtensionOids();
if (dummySet != null)
{
foreach (string key in dummySet)
{
Console.WriteLine("\t{0}:\t{1}", key);
}
}
Console.WriteLine();
dummySet = cert.GetNonCriticalExtensionOids();
if (dummySet != null)
{
foreach (string key in dummySet)
{
Console.WriteLine("\t{0}:\t{1}", key);
}
}
Console.WriteLine();
}