internal static byte[] GetCertificateProperty(IntPtr certificateContext,
CertificateProperty property)
{
Debug.Assert(certificateContext != IntPtr.Zero, "certificateContext != IntPtr.Zero");
byte[] buffer = null;
int bufferSize = 0;
if (!UnsafeNativeMethods.CertGetCertificateContextProperty(certificateContext,
property,
buffer,
ref bufferSize))
{
ErrorCode errorCode = (ErrorCode)Marshal.GetLastWin32Error();
if (errorCode != ErrorCode.MoreData)
{
throw new CryptographicException((int)errorCode);
}
}
buffer = new byte[bufferSize];
if (!UnsafeNativeMethods.CertGetCertificateContextProperty(certificateContext,
property,
buffer,
ref bufferSize))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
return(buffer);
}
public static byte[] GetCertificateProperty(IntPtr certificateContext, CertificateProperty property)
{
byte[] buffer = null;
var bufferSize = 0;
// ReSharper disable once ExpressionIsAlwaysNull
if (!CertGetCertificateContextProperty(certificateContext, property, buffer, ref bufferSize))
{
// ReSharper disable once InconsistentNaming
const int ERROR_MORE_DATA = 0x000000ea;
var errorCode = Marshal.GetLastWin32Error();
if (errorCode != ERROR_MORE_DATA)
{
throw new CryptographicException(errorCode);
}
}
buffer = new byte[bufferSize];
if (!CertGetCertificateContextProperty(certificateContext, property, buffer, ref bufferSize))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
return(buffer);
}
internal static byte[] GetCertificateProperty(SafeCertContextHandle certificateContext,
CertificateProperty property)
{
Debug.Assert(certificateContext != null, "certificateContext != null");
Debug.Assert(!certificateContext.IsClosed && !certificateContext.IsInvalid,
"!certificateContext.IsClosed && !certificateContext.IsInvalid");
byte[] buffer = null;
int bufferSize = 0;
if (!UnsafeNativeMethods.CertGetCertificateContextProperty(certificateContext,
property,
buffer,
ref bufferSize))
{
ErrorCode errorCode = (ErrorCode)Marshal.GetLastWin32Error();
if (errorCode != ErrorCode.MoreData)
{
throw new CryptographicException((int)errorCode);
}
}
buffer = new byte[bufferSize];
if (!UnsafeNativeMethods.CertGetCertificateContextProperty(certificateContext,
property,
buffer,
ref bufferSize))
{
throw new CryptographicException(Marshal.GetLastWin32Error());
}
return(buffer);
}
/// <summary>
/// Get a property of a certificate formatted as a structure
/// </summary>
public static T GetCertificateProperty <T>(IntPtr certificateContext, CertificateProperty property) where T : struct
{
var rawProperty = GetCertificateProperty(certificateContext, property);
var gcHandle = GCHandle.Alloc(rawProperty, GCHandleType.Pinned);
var typedProperty = (T)Marshal.PtrToStructure(gcHandle.AddrOfPinnedObject(), typeof(T));
gcHandle.Free();
return(typedProperty);
}
public static bool HasProperty(IntPtr certificateContext, CertificateProperty property)
{
byte[] buffer = null;
var bufferSize = 0;
// ReSharper disable once ExpressionIsAlwaysNull
var hasProperty = CertGetCertificateContextProperty(certificateContext, property, buffer, ref bufferSize);
// ReSharper disable once InconsistentNaming
const int ERROR_MORE_DATA = 0x000000ea;
return(hasProperty || Marshal.GetLastWin32Error() == ERROR_MORE_DATA);
}
internal static bool HasCertificateProperty(IntPtr certificateContext,
CertificateProperty property)
{
Debug.Assert(certificateContext != IntPtr.Zero, "certificateContext != IntPtr.Zero");
byte[] buffer = null;
int bufferSize = 0;
bool gotProperty = UnsafeNativeMethods.CertGetCertificateContextProperty(certificateContext,
property,
buffer,
ref bufferSize);
return(gotProperty ||
(ErrorCode)Marshal.GetLastWin32Error() == ErrorCode.MoreData);
}
internal static T GetCertificateProperty <T>(IntPtr certificateContext,
CertificateProperty property) where T : struct
{
Debug.Assert(certificateContext != IntPtr.Zero, "certificateContext != IntPtr.Zero");
byte[] rawProperty = GetCertificateProperty(certificateContext, property);
Debug.Assert(rawProperty.Length >= Marshal.SizeOf(typeof(T)), "Property did not return expected structure");
unsafe
{
fixed(byte *pRawProperty = &rawProperty[0])
{
return((T)Marshal.PtrToStructure(new IntPtr(pRawProperty), typeof(T)));
}
}
}
internal static bool HasCertificateProperty(SafeCertContextHandle certificateContext,
CertificateProperty property)
{
Debug.Assert(certificateContext != null, "certificateContext != null");
Debug.Assert(!certificateContext.IsClosed && !certificateContext.IsInvalid, "!certificateContext.IsClosed && !certificateContext.IsInvalid");
byte[] buffer = null;
int bufferSize = 0;
bool gotProperty = UnsafeNativeMethods.CertGetCertificateContextProperty(certificateContext,
property,
buffer,
ref bufferSize);
return(gotProperty ||
(ErrorCode)Marshal.GetLastWin32Error() == ErrorCode.MoreData);
}
internal static T GetCertificateProperty <T>(SafeCertContextHandle certificateContext,
CertificateProperty property) where T : struct
{
Debug.Assert(certificateContext != null, "certificateContext != null");
Debug.Assert(!certificateContext.IsClosed && !certificateContext.IsInvalid, "!certificateContext.IsClosed && !certificateContext.IsInvalid");
byte[] rawProperty = GetCertificateProperty(certificateContext, property);
Debug.Assert(rawProperty.Length >= Marshal.SizeOf(typeof(T)), "Property did not return expected structure");
unsafe
{
fixed(byte *pRawProperty = &rawProperty[0])
{
return((T)Marshal.PtrToStructure(new IntPtr(pRawProperty), typeof(T)));
}
}
}
internal static extern bool CertSetCertificateContextProperty(SafeCertContextHandle pCertContext,
CertificateProperty dwPropId,
CertSetPropertyFlags dwFlags,
[In] ref CRYPT_KEY_PROV_INFO pvData);
internal static extern bool CertGetCertificateContextProperty(IntPtr pCertContext, CertificateProperty dwPropId,
[Out, MarshalAs(UnmanagedType.LPArray)] byte[] pvData, [In, Out] ref int pcbData);
public static extern bool CertSetCertificateContextProperty(
SafeCertContextHandle pCertContext,
CertificateProperty dwPropId,
CertificateSetPropertyFlags dwFlags,
[In] SafeNCryptKeyHandle keyHandle);
public static extern bool CertGetCertificateContextProperty(
SafeCertContextHandle pCertContext,
CertificateProperty dwPropId,
[Out] out IntPtr pvData,
[In, Out] ref int pcbData);
internal static extern bool CertSetCertificateContextProperty(
IntPtr pCertContext,
CertificateProperty propertyId,
uint dwFlags,
IntPtr pvData
);
private static extern bool CertSetCertificateContextProperty(SafeCertContextHandle pCertContext,
CertificateProperty dwPropId,
CertificatePropertySetFlags dwFlags,
[In] ref CERT_KEY_CONTEXT pvData);
/// <summary>
/// Gets the property value given the specified property name.
/// </summary>
/// <param name="propName">The property name</param>
/// <returns>The property value object</returns>
public object GetProperty(CertificateProperty propName)
{
object retVal = null;
if (m_propertyBag == null) m_propertyBag = new Hashtable();
if (m_propertyBag.Contains(propName))
{
retVal = m_propertyBag[propName] as Byte[];
}
else
{
byte[] propValue = new byte[2048];
byte[] propLen = new byte[4];
CryptokiAttribute[] props = new CryptokiAttribute[] {
new CryptokiAttribute((CryptokiAttribute.CryptokiType)propName, propValue),
new CryptokiAttribute( CryptokiAttribute.CryptokiType.ValueLen, propLen ),
};
if(GetAttributeValues(ref props))
{
switch(propName)
{
case CertificateProperty.KeyType:
retVal = (KeyType)Utility.ConvertToInt32(propValue);
break;
case CertificateProperty.SignatureAlgorithm:
retVal = (MechanismType)Utility.ConvertToInt32(propValue);
break;
case CertificateProperty.Issuer:
case CertificateProperty.Subject:
retVal = new string(UTF8Encoding.UTF8.GetChars(propValue));
break;
case CertificateProperty.SerialNumber:
case CertificateProperty.RawBytes:
{
int len = Utility.ConvertToInt32(propLen);
if (len < propValue.Length)
{
byte[] tmp = new byte[len];
Array.Copy(propValue, tmp, len);
propValue = tmp;
}
}
retVal = propValue;
break;
case CertificateProperty.EffectiveDate:
case CertificateProperty.ExpirationDate:
DATE_TIME_INFO dti = new DATE_TIME_INFO(propValue);
retVal = new DateTime(dti.year, dti.month, dti.day, dti.hour, dti.minute, dti.second, dti.msec);
break;
}
}
if (retVal != null)
{
m_propertyBag[propName] = retVal;
}
}
return retVal;
}
internal static extern bool CertSetCertificateContextProperty(SafeCertContextHandle pCertContext,
CertificateProperty dwPropId,
CertificatePropertySetFlags dwFlags,
[In] ref CERT_KEY_CONTEXT pvData);
internal static extern bool CertSetCertificateContextProperty(IntPtr pCertContext, CertificateProperty propertyId, uint dwFlags, IntPtr pvData);
/// <summary>
/// Gets the property value given the specified property name.
/// </summary>
/// <param name="propName">The property name</param>
/// <returns>The property value object</returns>
public object GetProperty(CertificateProperty propName)
{
object retVal = null;
if (m_propertyBag == null)
{
m_propertyBag = new Hashtable();
}
if (m_propertyBag.Contains(propName))
{
retVal = m_propertyBag[propName] as Byte[];
}
else
{
byte[] propValue = new byte[2048];
byte[] propLen = new byte[4];
CryptokiAttribute[] props = new CryptokiAttribute[] {
new CryptokiAttribute((CryptokiAttribute.CryptokiType)propName, propValue),
new CryptokiAttribute(CryptokiAttribute.CryptokiType.ValueLen, propLen),
};
if (GetAttributeValues(ref props))
{
switch (propName)
{
case CertificateProperty.KeyType:
retVal = (KeyType)Utility.ConvertToInt32(propValue);
break;
case CertificateProperty.SignatureAlgorithm:
retVal = (MechanismType)Utility.ConvertToInt32(propValue);
break;
case CertificateProperty.Issuer:
case CertificateProperty.Subject:
retVal = new string(UTF8Encoding.UTF8.GetChars(propValue));
break;
case CertificateProperty.SerialNumber:
case CertificateProperty.RawBytes:
{
int len = Utility.ConvertToInt32(propLen);
if (len < propValue.Length)
{
byte[] tmp = new byte[len];
Array.Copy(propValue, tmp, len);
propValue = tmp;
}
}
retVal = propValue;
break;
case CertificateProperty.EffectiveDate:
case CertificateProperty.ExpirationDate:
DATE_TIME_INFO dti = new DATE_TIME_INFO(propValue);
retVal = new DateTime(dti.year, dti.month, dti.day, dti.hour, dti.minute, dti.second, dti.msec);
break;
}
}
if (retVal != null)
{
m_propertyBag[propName] = retVal;
}
}
return(retVal);
}
