public static unsafe bool DecodeObjectNoThrow <TState, TResult>(
this ReadOnlySpan <byte> encoded,
CryptDecodeObjectStructType lpszStructType,
TState state,
DecodedObjectReceiver <TState, TResult> receiver,
out TResult?result)
{
int cb = 0;
if (!Interop.crypt32.CryptDecodeObjectPointer(
Interop.Crypt32.CertEncodingType.All,
lpszStructType,
encoded,
Interop.Crypt32.CryptDecodeObjectFlags.None,
null,
ref cb))
{
result = default;
return(false);
}
const int MaxStackAllocSize = 256;
Span <byte> decoded = stackalloc byte[MaxStackAllocSize];
if ((uint)cb > MaxStackAllocSize)
{
decoded = new byte[cb];
}
fixed(byte *pDecoded = decoded)
{
if (!Interop.crypt32.CryptDecodeObjectPointer(
Interop.Crypt32.CertEncodingType.All,
lpszStructType,
encoded,
Interop.Crypt32.CryptDecodeObjectFlags.None,
pDecoded,
ref cb))
{
result = default;
return(false);
}
result = receiver(pDecoded, cb, state);
}
return(true);
}
public static void DecodeObject(this byte[] encoded, CryptDecodeObjectStructType lpszStructType, DecodedObjectReceiver receiver)
{
unsafe
{
int cb = 0;
if (!Interop.crypt32.CryptDecodeObjectPointer(CertEncodingType.All, lpszStructType, encoded, encoded.Length, CryptDecodeObjectFlags.None, null, ref cb))
throw Marshal.GetLastWin32Error().ToCryptographicException();
byte* decoded = stackalloc byte[cb];
if (!Interop.crypt32.CryptDecodeObjectPointer(CertEncodingType.All, lpszStructType, encoded, encoded.Length, CryptDecodeObjectFlags.None, (byte*)decoded, ref cb))
throw Marshal.GetLastWin32Error().ToCryptographicException();
receiver(decoded);
}
}
public static TResult DecodeObject <TResult>(
this byte[] encoded,
CryptDecodeObjectStructType lpszStructType,
DecodedObjectReceiver <TResult> receiver)
{
unsafe
{
int cb = 0;
if (!Interop.crypt32.CryptDecodeObjectPointer(
Interop.Crypt32.CertEncodingType.All,
lpszStructType,
encoded,
encoded.Length,
Interop.Crypt32.CryptDecodeObjectFlags.None,
null,
ref cb))
{
throw Marshal.GetLastPInvokeError().ToCryptographicException();
}
int MaxStackAllocSize = 256;
Span <byte> decoded = stackalloc byte[MaxStackAllocSize];
if ((uint)cb > MaxStackAllocSize)
{
decoded = new byte[cb];
}
fixed(byte *pDecoded = decoded)
{
if (!Interop.crypt32.CryptDecodeObjectPointer(
Interop.Crypt32.CertEncodingType.All,
lpszStructType,
encoded,
encoded.Length,
Interop.Crypt32.CryptDecodeObjectFlags.None,
pDecoded,
ref cb))
{
throw Marshal.GetLastPInvokeError().ToCryptographicException();
}
return(receiver(pDecoded, cb));
}
}
}
public static void DecodeObject(this byte[] encoded, string lpszStructType, DecodedObjectReceiver receiver)
{
unsafe
{
int cb = 0;
if (!Interop.crypt32.CryptDecodeObjectPointer(CertEncodingType.All, lpszStructType, encoded, encoded.Length, CryptDecodeObjectFlags.None, null, ref cb))
{
throw Marshal.GetLastWin32Error().ToCryptographicException();
}
byte *decoded = stackalloc byte[cb];
if (!Interop.crypt32.CryptDecodeObjectPointer(CertEncodingType.All, lpszStructType, encoded, encoded.Length, CryptDecodeObjectFlags.None, (byte *)decoded, ref cb))
{
throw Marshal.GetLastWin32Error().ToCryptographicException();
}
receiver(decoded);
}
}
public static bool DecodeObjectNoThrow(
this byte[] encoded,
CryptDecodeObjectStructType lpszStructType,
DecodedObjectReceiver receiver)
{
unsafe
{
int cb = 0;
if (!Interop.crypt32.CryptDecodeObjectPointer(
Interop.Crypt32.CertEncodingType.All,
lpszStructType,
encoded,
encoded.Length,
Interop.Crypt32.CryptDecodeObjectFlags.None,
null,
ref cb))
{
return(false);
}
byte *decoded = stackalloc byte[cb];
if (!Interop.crypt32.CryptDecodeObjectPointer(
Interop.Crypt32.CertEncodingType.All,
lpszStructType,
encoded,
encoded.Length,
Interop.Crypt32.CryptDecodeObjectFlags.None,
decoded,
ref cb))
{
return(false);
}
receiver(decoded, cb);
}
return(true);
}
public static TResult DecodeObject <TResult>(
this byte[] encoded,
CryptDecodeObjectStructType lpszStructType,
DecodedObjectReceiver <TResult> receiver)
{
unsafe
{
int cb = 0;
if (!Interop.crypt32.CryptDecodeObjectPointer(
Interop.Crypt32.CertEncodingType.All,
lpszStructType,
encoded,
encoded.Length,
Interop.Crypt32.CryptDecodeObjectFlags.None,
null,
ref cb))
{
throw Marshal.GetLastWin32Error().ToCryptographicException();
}
byte *decoded = stackalloc byte[cb];
if (!Interop.crypt32.CryptDecodeObjectPointer(
Interop.Crypt32.CertEncodingType.All,
lpszStructType,
encoded,
encoded.Length,
Interop.Crypt32.CryptDecodeObjectFlags.None,
decoded,
ref cb))
{
throw Marshal.GetLastWin32Error().ToCryptographicException();
}
return(receiver(decoded, cb));
}
}
public static bool DecodeObjectNoThrow(this byte[] encoded, CryptDecodeObjectStructType lpszStructType, DecodedObjectReceiver receiver)
{
unsafe
{
int cb = 0;
if (!Interop.crypt32.CryptDecodeObjectPointer(CertEncodingType.All, lpszStructType, encoded, encoded.Length, CryptDecodeObjectFlags.None, null, ref cb))
return false;
byte* decoded = stackalloc byte[cb];
if (!Interop.crypt32.CryptDecodeObjectPointer(CertEncodingType.All, lpszStructType, encoded, encoded.Length, CryptDecodeObjectFlags.None, (byte*)decoded, ref cb))
return false;
receiver(decoded);
}
return true;
}
