CRYPT_PROVIDER_FUNCTIONS

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct CRYPT_PROVIDER_FUNCTIONS
{
    public uint cbStruct;
    public IntPtr pfnAlloc;
    public IntPtr pfnFree;
    public IntPtr pfnAddStore2Chain;
    public IntPtr pfnAddSgnr2Chain;
    public IntPtr pfnAddCert2Chain;
    public IntPtr pfnAddPrivData2Chain;
    public IntPtr pfnInitialize;
    public IntPtr pfnObjectTrust;
    public IntPtr pfnSignatureTrust;
    public IntPtr pfnCertificateTrust;
    public IntPtr pfnFinalPolicy;
    public IntPtr pfnCertCheckPolicy;
    public IntPtr pfnTestFinalPolicy;
    public IntPtr psUIpfns;
    public IntPtr pfnCleanupPolicy;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure CRYPT_PROVIDER_FUNCTIONS
    Public cbStruct As UInteger
    Public pfnAlloc As IntPtr
    Public pfnFree As IntPtr
    Public pfnAddStore2Chain As IntPtr
    Public pfnAddSgnr2Chain As IntPtr
    Public pfnAddCert2Chain As IntPtr
    Public pfnAddPrivData2Chain As IntPtr
    Public pfnInitialize As IntPtr
    Public pfnObjectTrust As IntPtr
    Public pfnSignatureTrust As IntPtr
    Public pfnCertificateTrust As IntPtr
    Public pfnFinalPolicy As IntPtr
    Public pfnCertCheckPolicy As IntPtr
    Public pfnTestFinalPolicy As IntPtr
    Public psUIpfns As IntPtr
    Public pfnCleanupPolicy As IntPtr
End Structure

import ctypes
from ctypes import wintypes

class CRYPT_PROVIDER_FUNCTIONS(ctypes.Structure):
    _fields_ = [
        ("cbStruct", wintypes.DWORD),
        ("pfnAlloc", ctypes.c_void_p),
        ("pfnFree", ctypes.c_void_p),
        ("pfnAddStore2Chain", ctypes.c_void_p),
        ("pfnAddSgnr2Chain", ctypes.c_void_p),
        ("pfnAddCert2Chain", ctypes.c_void_p),
        ("pfnAddPrivData2Chain", ctypes.c_void_p),
        ("pfnInitialize", ctypes.c_void_p),
        ("pfnObjectTrust", ctypes.c_void_p),
        ("pfnSignatureTrust", ctypes.c_void_p),
        ("pfnCertificateTrust", ctypes.c_void_p),
        ("pfnFinalPolicy", ctypes.c_void_p),
        ("pfnCertCheckPolicy", ctypes.c_void_p),
        ("pfnTestFinalPolicy", ctypes.c_void_p),
        ("psUIpfns", ctypes.c_void_p),
        ("pfnCleanupPolicy", ctypes.c_void_p),
    ]

#[repr(C)]
pub struct CRYPT_PROVIDER_FUNCTIONS {
    pub cbStruct: u32,
    pub pfnAlloc: *mut core::ffi::c_void,
    pub pfnFree: *mut core::ffi::c_void,
    pub pfnAddStore2Chain: *mut core::ffi::c_void,
    pub pfnAddSgnr2Chain: *mut core::ffi::c_void,
    pub pfnAddCert2Chain: *mut core::ffi::c_void,
    pub pfnAddPrivData2Chain: *mut core::ffi::c_void,
    pub pfnInitialize: *mut core::ffi::c_void,
    pub pfnObjectTrust: *mut core::ffi::c_void,
    pub pfnSignatureTrust: *mut core::ffi::c_void,
    pub pfnCertificateTrust: *mut core::ffi::c_void,
    pub pfnFinalPolicy: *mut core::ffi::c_void,
    pub pfnCertCheckPolicy: *mut core::ffi::c_void,
    pub pfnTestFinalPolicy: *mut core::ffi::c_void,
    pub psUIpfns: *mut core::ffi::c_void,
    pub pfnCleanupPolicy: *mut core::ffi::c_void,
}

import "golang.org/x/sys/windows"

type CRYPT_PROVIDER_FUNCTIONS struct {
	cbStruct uint32
	pfnAlloc uintptr
	pfnFree uintptr
	pfnAddStore2Chain uintptr
	pfnAddSgnr2Chain uintptr
	pfnAddCert2Chain uintptr
	pfnAddPrivData2Chain uintptr
	pfnInitialize uintptr
	pfnObjectTrust uintptr
	pfnSignatureTrust uintptr
	pfnCertificateTrust uintptr
	pfnFinalPolicy uintptr
	pfnCertCheckPolicy uintptr
	pfnTestFinalPolicy uintptr
	psUIpfns uintptr
	pfnCleanupPolicy uintptr
}

type
  CRYPT_PROVIDER_FUNCTIONS = record
    cbStruct: DWORD;
    pfnAlloc: Pointer;
    pfnFree: Pointer;
    pfnAddStore2Chain: Pointer;
    pfnAddSgnr2Chain: Pointer;
    pfnAddCert2Chain: Pointer;
    pfnAddPrivData2Chain: Pointer;
    pfnInitialize: Pointer;
    pfnObjectTrust: Pointer;
    pfnSignatureTrust: Pointer;
    pfnCertificateTrust: Pointer;
    pfnFinalPolicy: Pointer;
    pfnCertCheckPolicy: Pointer;
    pfnTestFinalPolicy: Pointer;
    psUIpfns: Pointer;
    pfnCleanupPolicy: Pointer;
  end;

const CRYPT_PROVIDER_FUNCTIONS = extern struct {
    cbStruct: u32,
    pfnAlloc: ?*anyopaque,
    pfnFree: ?*anyopaque,
    pfnAddStore2Chain: ?*anyopaque,
    pfnAddSgnr2Chain: ?*anyopaque,
    pfnAddCert2Chain: ?*anyopaque,
    pfnAddPrivData2Chain: ?*anyopaque,
    pfnInitialize: ?*anyopaque,
    pfnObjectTrust: ?*anyopaque,
    pfnSignatureTrust: ?*anyopaque,
    pfnCertificateTrust: ?*anyopaque,
    pfnFinalPolicy: ?*anyopaque,
    pfnCertCheckPolicy: ?*anyopaque,
    pfnTestFinalPolicy: ?*anyopaque,
    psUIpfns: ?*anyopaque,
    pfnCleanupPolicy: ?*anyopaque,
};

type
  CRYPT_PROVIDER_FUNCTIONS {.bycopy.} = object
    cbStruct: uint32
    pfnAlloc: pointer
    pfnFree: pointer
    pfnAddStore2Chain: pointer
    pfnAddSgnr2Chain: pointer
    pfnAddCert2Chain: pointer
    pfnAddPrivData2Chain: pointer
    pfnInitialize: pointer
    pfnObjectTrust: pointer
    pfnSignatureTrust: pointer
    pfnCertificateTrust: pointer
    pfnFinalPolicy: pointer
    pfnCertCheckPolicy: pointer
    pfnTestFinalPolicy: pointer
    psUIpfns: pointer
    pfnCleanupPolicy: pointer

struct CRYPT_PROVIDER_FUNCTIONS
{
    uint cbStruct;
    void* pfnAlloc;
    void* pfnFree;
    void* pfnAddStore2Chain;
    void* pfnAddSgnr2Chain;
    void* pfnAddCert2Chain;
    void* pfnAddPrivData2Chain;
    void* pfnInitialize;
    void* pfnObjectTrust;
    void* pfnSignatureTrust;
    void* pfnCertificateTrust;
    void* pfnFinalPolicy;
    void* pfnCertCheckPolicy;
    void* pfnTestFinalPolicy;
    void* psUIpfns;
    void* pfnCleanupPolicy;
}