public static string CanonicalizeKey(string someKeyXml)
{
SimpleRSAPubKey newKey = new SimpleRSAPubKey();
newKey.exponent = SimpleRSAPubKey.GetExponent(someKeyXml);
newKey.modulus = SimpleRSAPubKey.GetModulus(someKeyXml);
return(newKey.ToString());
}
private static void GetKeyIdentifiers(X509Certificate2 certificate,
out string kiCAPI,
out string kiThumbprintSHA1,
out string kiRFC3280,
out string kiIssuerSerial,
out bool onlyIssuerSerialIsDefined,
out SimpleRSAPubKey publicKey)
{
const string SubjectKeyIdentifierOID = "2.5.29.14";
X509SubjectKeyIdentifierExtension extensionSKI =
certificate.Extensions[SubjectKeyIdentifierOID] as X509SubjectKeyIdentifierExtension;
onlyIssuerSerialIsDefined = extensionSKI != null;
if (onlyIssuerSerialIsDefined)
{
kiIssuerSerial = ASNDecode(extensionSKI.RawData);
kiCAPI = kiIssuerSerial;
kiThumbprintSHA1 = kiIssuerSerial;
kiRFC3280 = kiIssuerSerial;
}
else
{
kiIssuerSerial = String.Empty;
PublicKey pk = certificate.PublicKey;
X509SubjectKeyIdentifierExtension extensionCAPI = new
X509SubjectKeyIdentifierExtension(pk,
X509SubjectKeyIdentifierHashAlgorithm.CapiSha1, false);
X509SubjectKeyIdentifierExtension extensionRfc3280 = new
X509SubjectKeyIdentifierExtension(pk,
X509SubjectKeyIdentifierHashAlgorithm.ShortSha1, false);
kiCAPI = ASNDecode(extensionCAPI.RawData);
kiThumbprintSHA1 = Convert.ToBase64String(certificate.GetCertHash());
kiRFC3280 = ASNDecode(extensionRfc3280.RawData);
}
publicKey = new SimpleRSAPubKey(certificate);
}
