private static X509Certificate createCertificate(
AsymmetricCipherKeyPair pair,
string country,
string organization,
string locality,
string state,
string emailAddress,
string commonName,
BigInteger serialNumber,
AsymmetricCipherKeyPair signer)
{
Hashtable attrs = new Hashtable();
attrs.Add(X509Name.C, country); // Country
attrs.Add(X509Name.O, organization); // Organization
attrs.Add(X509Name.L, locality); // Locality
attrs.Add(X509Name.ST, state); // State/Province
attrs.Add(X509Name.EmailAddress, emailAddress);
attrs.Add(X509Name.CN, commonName); // Common Name
// Create a certificate
X509V3CertificateGenerator certGen = new X509V3CertificateGenerator();
certGen.setSerialNumber(serialNumber);
certGen.setIssuerDN(new X509Name(attrs));
certGen.setNotBefore(DateTime.Today.Subtract(new TimeSpan(1, 0, 0, 0)));
certGen.setNotAfter(DateTime.Today.AddDays(365));
certGen.setSubjectDN(new X509Name(attrs));
certGen.setPublicKey(pair.getPublic());
certGen.setSignatureAlgorithm("SHA1WithRSAEncryption");
return(certGen.generateX509Certificate(signer.getPrivate()));
}
public ScrambledKeyPair(AsymmetricCipherKeyPair pPair)
{
_pair = pPair;
_publicKey = pPair.getPublic();
_scrambledModulus = scrambleModulus((_publicKey as RSAKeyParameters).getModulus());
_privateKey = pPair.getPrivate();
}
public ScrambledKeyPair(AsymmetricCipherKeyPair pPair)
{
_pair = pPair;
AsymmetricKeyParameter publicKey = pPair.getPublic();
RSAKeyParameters rsaKeyParameters = publicKey as RSAKeyParameters;
if (rsaKeyParameters != null)
{
ScrambledModulus = ScrambleModulus(rsaKeyParameters.getModulus());
}
PrivateKey = pPair.getPrivate();
}
private RSAKeyParameters generateKeys()
{
RSAKeyPairGenerator kpg = new RSAKeyPairGenerator();
RSAKeyGenerationParameters parms = new RSAKeyGenerationParameters(
BigInteger.valueOf(0x11), new SecureRandom(), keySize,
certainty);
kpg.init(parms);
AsymmetricCipherKeyPair pair = kpg.generateKeyPair();
privateKey = (RSAKeyParameters)pair.getPrivate();
return((RSAKeyParameters)pair.getPublic());
}