internal X509CertificateContextProperty(X509Certificate2 cert, X509CertificatePropertyType propID)
{
if (IntPtr.Zero.Equals(cert.Handle))
{
throw new UninitializedObjectException();
}
Certificate = cert;
PropertyName = propID;
}
internal X509CertificateContextProperty(X509Certificate2 cert, X509CertificatePropertyType propID, Byte[] bytes)
: this(cert, propID)
{
switch (propID)
{
// DWORD
case X509CertificatePropertyType.AccessState:
case X509CertificatePropertyType.KeySpec:
case X509CertificatePropertyType.PublicKeyLength:
case X509CertificatePropertyType.PublicKeyCngLength:
initializeDword(bytes);
break;
// string
case X509CertificatePropertyType.CNGSignatureHashAlgorithm:
case X509CertificatePropertyType.PvkFile:
case X509CertificatePropertyType.FriendlyName:
case X509CertificatePropertyType.Description:
case X509CertificatePropertyType.AutoenrollmentTemplateName:
case X509CertificatePropertyType.StatusInfo:
case X509CertificatePropertyType.RequestOriginatorMachine:
case X509CertificatePropertyType.OcspCachePrefix:
initializeString(bytes);
break;
// ASN.1
case X509CertificatePropertyType.EnhancedKeyUsage:
case X509CertificatePropertyType.RootProgramCertificatePolicies:
case X509CertificatePropertyType.CTLNextUpdateLocation:
case X509CertificatePropertyType.OcspResponse:
initializeAsn1(bytes);
break;
case X509CertificatePropertyType.CEPEnrollmentInfo:
case X509CertificatePropertyType.EnrollmentInfo:
initializeStruct(bytes);
break;
// byte[]
default:
initializeHash(bytes);
break;
}
}
internal X509CertificateContextProperty(X509Certificate2 cert, X509CertificatePropertyType propID, IntPtr data)
: this(cert, propID)
{
initializeStruct(data);
}
/// <summary>
/// Gets a specified certificate context property.
/// </summary>
/// <param name="cert">Certificate.</param>
/// <param name="propID">Property ID to retrieve.</param>
/// <exception cref="ArgumentNullException">
/// <strong>cert</strong> parameter is null reference.
/// </exception>
/// <exception cref="UninitializedObjectException">
/// Certificate object is not initialized and is empty.
/// </exception>
/// <exception cref="Exception">
/// Requested context property is not found for the current certificate object.
/// </exception>
/// <returns>Specified certificate context property.</returns>
public static X509CertificateContextProperty GetCertificateContextProperty(this X509Certificate2 cert, X509CertificatePropertyType propID)
{
if (cert == null)
{
throw new ArgumentNullException(nameof(cert));
}
if (IntPtr.Zero.Equals(cert.Handle))
{
throw new UninitializedObjectException();
}
UInt32 pcbData = 0;
switch (propID)
{
case X509CertificatePropertyType.Handle:
case X509CertificatePropertyType.KeyContext:
case X509CertificatePropertyType.ProviderInfo:
if (!Crypt32.CertGetCertificateContextProperty(cert.Handle, propID, IntPtr.Zero, ref pcbData))
{
throw new Exception("No such property.");
}
IntPtr ptr = Marshal.AllocHGlobal((Int32)pcbData);
Crypt32.CertGetCertificateContextProperty(cert.Handle, propID, ptr, ref pcbData);
try {
return(new X509CertificateContextProperty(cert, propID, ptr));
} finally {
Marshal.FreeHGlobal(ptr);
}
// byte[]
default:
if (!Crypt32.CertGetCertificateContextProperty(cert.Handle, propID, null, ref pcbData))
{
throw new Exception("No such property.");
}
Byte[] bytes = new Byte[pcbData];
Crypt32.CertGetCertificateContextProperty(cert.Handle, propID, bytes, ref pcbData);
return(new X509CertificateContextProperty(cert, propID, bytes));
}
}
internal static extern Boolean CertSetCertificateContextProperty(
[In] IntPtr pCertContext,
[In] X509CertificatePropertyType dwPropId,
[In] UInt32 dwFlags,
[In] IntPtr pvData
);
internal static extern Boolean CertGetCertificateContextProperty(
[In] IntPtr pCertContext,
[In] X509CertificatePropertyType dwPropId,
[Out] Byte[] pvData,
[In, Out] ref UInt32 pcbData
);
