private static X509Certificate2 LoadCertificateFromStore(string location) {
if (string.IsNullOrEmpty(location)) {
throw new ArgumentNullException("location");
}
// check for name:location\path style
var match = _certLocationParser.Match(location);
if (match.Success) {
X509Store store = null;
try {
StoreLocation storeLocation;
if (!Enum.TryParse(match.Value("location", ""), true, out storeLocation)) {
return null;
}
var storename = match.Value("name", "");
var cert = match.Value("cert", "");
store = new X509Store(storename, storeLocation);
if (store.Certificates.Count > 0) {
var certs = new X509Certificate2[store.Certificates.Count];
store.Certificates.CopyTo(certs, 0);
certs = certs.Where(each => each.HasPrivateKey).ToArray();
var matches = certs.Where(each => (!string.IsNullOrEmpty(each.Thumbprint)) && each.Thumbprint.Equals(cert, StringComparison.CurrentCultureIgnoreCase)).ToArray();
if (matches.Count() == 1) {
return matches.FirstOrDefault();
}
matches = certs.Where(each => (!string.IsNullOrEmpty(each.SubjectName.Name)) && each.SubjectName.Name.Equals(cert, StringComparison.CurrentCultureIgnoreCase)).ToArray();
if (matches.Count() == 1) {
return matches.FirstOrDefault();
}
}
} finally {
if (store != null) {
store.Close();
}
}
}
return null;
}
