public bool AddContactCertificate(string strContactID, X509Certificate cert)
{
if (strContactID == null || strContactID.Length == 0)
{
throw new ArgumentException("Invalid contact ID", "strContactID");
}
if (cert == null)
{
throw new ArgumentNullException("cert", "Invalid Contact X509 Certificate");
}
// Prevent any attempt to add multiple certificates for a contact
if (IsContactCertificateInStore(strContactID))
{
return(true);
}
bool bRetVal = true;
// Use CAPICOM (v2.0) support to add certificate
StoreClass store = new StoreClass();
store.Open(CAPICOM_STORE_LOCATION.CAPICOM_LOCAL_MACHINE_STORE,
X509CertificateStore.MyStore,
CAPICOM_STORE_OPEN_MODE.CAPICOM_STORE_OPEN_EXISTING_ONLY |
CAPICOM_STORE_OPEN_MODE.CAPICOM_STORE_OPEN_MAXIMUM_ALLOWED
);
// Store certificate
// Convert cert to base64 string
string strBase64Cert = cert.ToBase64String();
// Save to temp file
string strTempFile = Guid.NewGuid().ToString();
StreamWriter sw = new StreamWriter(File.Create(strTempFile));
sw.Write(strBase64Cert);
sw.Flush();
sw.Close();
// Load cert from temp file
store.Load(strTempFile, Constants.DEFAULT_CERT_PSWD, CAPICOM_KEY_STORAGE_FLAG.CAPICOM_KEY_STORAGE_DEFAULT | CAPICOM_KEY_STORAGE_FLAG.CAPICOM_KEY_STORAGE_EXPORTABLE);
// Delete temp file
File.Delete(strTempFile);
// Close store
store.CloseHandle(store.StoreHandle);
// Return true
return(bRetVal);
}
public bool RemoveContactCertificate(string strContactID)
{
if (strContactID == null || strContactID.Length == 0)
{
throw new ArgumentException("Invalid contact ID", "strContactID");
}
// Prevent any attempt to add multiple certificates for a contact
if (!IsContactCertificateInStore(strContactID))
{
return(true);
}
bool bRetVal = true;
// Use CAPICOM (v2.0) support to remove certificate
StoreClass store = new StoreClass();
store.Open(CAPICOM_STORE_LOCATION.CAPICOM_LOCAL_MACHINE_STORE,
X509CertificateStore.MyStore,
CAPICOM_STORE_OPEN_MODE.CAPICOM_STORE_OPEN_EXISTING_ONLY |
CAPICOM_STORE_OPEN_MODE.CAPICOM_STORE_OPEN_MAXIMUM_ALLOWED
);
// Remove "CN=" prefix from contact ID
// Hack because CAPICOM Find by Subject name will not ignore the "CN="
// unlike Microsoft.Web.Services.Security.X509.X509CertificateStore
int nStart = strContactID.LastIndexOf("=");
strContactID = strContactID.Substring(nStart + 1);
// Find the cert to remove
Certificates certCol = ((Certificates)store.Certificates).Find(CAPICOM_CERTIFICATE_FIND_TYPE.CAPICOM_CERTIFICATE_FIND_SUBJECT_NAME, strContactID, false);
IEnumerator it = certCol.GetEnumerator();
while (it.MoveNext())
{
store.Remove((Certificate)it.Current);
}
// Close store
store.CloseHandle(store.StoreHandle);
return(bRetVal);
}