BCryptVerifySignature

// bcrypt.dll
#include <windows.h>

NTSTATUS BCryptVerifySignature(
    BCRYPT_KEY_HANDLE hKey,
    void* pPaddingInfo,   // optional
    BYTE* pbHash,
    DWORD cbHash,
    BYTE* pbSignature,
    DWORD cbSignature,
    BCRYPT_FLAGS dwFlags
);

<DllImport("bcrypt.dll", ExactSpelling:=True)>
Public Shared Function BCryptVerifySignature(
    hKey As IntPtr,   ' BCRYPT_KEY_HANDLE
    pPaddingInfo As IntPtr,   ' void* optional
    pbHash As IntPtr,   ' BYTE*
    cbHash As UInteger,   ' DWORD
    pbSignature As IntPtr,   ' BYTE*
    cbSignature As UInteger,   ' DWORD
    dwFlags As UInteger   ' BCRYPT_FLAGS
) As Integer
End Function

' hKey : BCRYPT_KEY_HANDLE
' pPaddingInfo : void* optional
' pbHash : BYTE*
' cbHash : DWORD
' pbSignature : BYTE*
' cbSignature : DWORD
' dwFlags : BCRYPT_FLAGS
Declare PtrSafe Function BCryptVerifySignature Lib "bcrypt" ( _
    ByVal hKey As LongPtr, _
    ByVal pPaddingInfo As LongPtr, _
    ByVal pbHash As LongPtr, _
    ByVal cbHash As Long, _
    ByVal pbSignature As LongPtr, _
    ByVal cbSignature As Long, _
    ByVal dwFlags As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

BCryptVerifySignature = ctypes.windll.bcrypt.BCryptVerifySignature
BCryptVerifySignature.restype = ctypes.c_int
BCryptVerifySignature.argtypes = [
    wintypes.HANDLE,  # hKey : BCRYPT_KEY_HANDLE
    ctypes.POINTER(None),  # pPaddingInfo : void* optional
    ctypes.POINTER(ctypes.c_ubyte),  # pbHash : BYTE*
    wintypes.DWORD,  # cbHash : DWORD
    ctypes.POINTER(ctypes.c_ubyte),  # pbSignature : BYTE*
    wintypes.DWORD,  # cbSignature : DWORD
    wintypes.DWORD,  # dwFlags : BCRYPT_FLAGS
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('bcrypt.dll')
BCryptVerifySignature = Fiddle::Function.new(
  lib['BCryptVerifySignature'],
  [
    Fiddle::TYPE_VOIDP,  # hKey : BCRYPT_KEY_HANDLE
    Fiddle::TYPE_VOIDP,  # pPaddingInfo : void* optional
    Fiddle::TYPE_VOIDP,  # pbHash : BYTE*
    -Fiddle::TYPE_INT,  # cbHash : DWORD
    Fiddle::TYPE_VOIDP,  # pbSignature : BYTE*
    -Fiddle::TYPE_INT,  # cbSignature : DWORD
    -Fiddle::TYPE_INT,  # dwFlags : BCRYPT_FLAGS
  ],
  Fiddle::TYPE_INT)

#[link(name = "bcrypt")]
extern "system" {
    fn BCryptVerifySignature(
        hKey: *mut core::ffi::c_void,  // BCRYPT_KEY_HANDLE
        pPaddingInfo: *mut (),  // void* optional
        pbHash: *mut u8,  // BYTE*
        cbHash: u32,  // DWORD
        pbSignature: *mut u8,  // BYTE*
        cbSignature: u32,  // DWORD
        dwFlags: u32  // BCRYPT_FLAGS
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("bcrypt.dll")]
public static extern int BCryptVerifySignature(IntPtr hKey, IntPtr pPaddingInfo, IntPtr pbHash, uint cbHash, IntPtr pbSignature, uint cbSignature, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'bcrypt_BCryptVerifySignature' -Namespace Win32 -PassThru
# $api::BCryptVerifySignature(hKey, pPaddingInfo, pbHash, cbHash, pbSignature, cbSignature, dwFlags)

#uselib "bcrypt.dll"
#func global BCryptVerifySignature "BCryptVerifySignature" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; BCryptVerifySignature hKey, pPaddingInfo, varptr(pbHash), cbHash, varptr(pbSignature), cbSignature, dwFlags   ; 戻り値は stat
; hKey : BCRYPT_KEY_HANDLE -> "sptr"
; pPaddingInfo : void* optional -> "sptr"
; pbHash : BYTE* -> "sptr"
; cbHash : DWORD -> "sptr"
; pbSignature : BYTE* -> "sptr"
; cbSignature : DWORD -> "sptr"
; dwFlags : BCRYPT_FLAGS -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

#uselib "bcrypt.dll"
#cfunc global BCryptVerifySignature "BCryptVerifySignature" sptr, sptr, var, int, var, int, int
; res = BCryptVerifySignature(hKey, pPaddingInfo, pbHash, cbHash, pbSignature, cbSignature, dwFlags)
; hKey : BCRYPT_KEY_HANDLE -> "sptr"
; pPaddingInfo : void* optional -> "sptr"
; pbHash : BYTE* -> "var"
; cbHash : DWORD -> "int"
; pbSignature : BYTE* -> "var"
; cbSignature : DWORD -> "int"
; dwFlags : BCRYPT_FLAGS -> "int"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; NTSTATUS BCryptVerifySignature(BCRYPT_KEY_HANDLE hKey, void* pPaddingInfo, BYTE* pbHash, DWORD cbHash, BYTE* pbSignature, DWORD cbSignature, BCRYPT_FLAGS dwFlags)
#uselib "bcrypt.dll"
#cfunc global BCryptVerifySignature "BCryptVerifySignature" intptr, intptr, var, int, var, int, int
; res = BCryptVerifySignature(hKey, pPaddingInfo, pbHash, cbHash, pbSignature, cbSignature, dwFlags)
; hKey : BCRYPT_KEY_HANDLE -> "intptr"
; pPaddingInfo : void* optional -> "intptr"
; pbHash : BYTE* -> "var"
; cbHash : DWORD -> "int"
; pbSignature : BYTE* -> "var"
; cbSignature : DWORD -> "int"
; dwFlags : BCRYPT_FLAGS -> "int"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	bcrypt = windows.NewLazySystemDLL("bcrypt.dll")
	procBCryptVerifySignature = bcrypt.NewProc("BCryptVerifySignature")
)

// hKey (BCRYPT_KEY_HANDLE), pPaddingInfo (void* optional), pbHash (BYTE*), cbHash (DWORD), pbSignature (BYTE*), cbSignature (DWORD), dwFlags (BCRYPT_FLAGS)
r1, _, err := procBCryptVerifySignature.Call(
	uintptr(hKey),
	uintptr(pPaddingInfo),
	uintptr(pbHash),
	uintptr(cbHash),
	uintptr(pbSignature),
	uintptr(cbSignature),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // NTSTATUS

function BCryptVerifySignature(
  hKey: THandle;   // BCRYPT_KEY_HANDLE
  pPaddingInfo: Pointer;   // void* optional
  pbHash: Pointer;   // BYTE*
  cbHash: DWORD;   // DWORD
  pbSignature: Pointer;   // BYTE*
  cbSignature: DWORD;   // DWORD
  dwFlags: DWORD   // BCRYPT_FLAGS
): Integer; stdcall;
  external 'bcrypt.dll' name 'BCryptVerifySignature';

result := DllCall("bcrypt\BCryptVerifySignature"
    , "Ptr", hKey   ; BCRYPT_KEY_HANDLE
    , "Ptr", pPaddingInfo   ; void* optional
    , "Ptr", pbHash   ; BYTE*
    , "UInt", cbHash   ; DWORD
    , "Ptr", pbSignature   ; BYTE*
    , "UInt", cbSignature   ; DWORD
    , "UInt", dwFlags   ; BCRYPT_FLAGS
    , "Int")   ; return: NTSTATUS

●BCryptVerifySignature(hKey, pPaddingInfo, pbHash, cbHash, pbSignature, cbSignature, dwFlags) = DLL("bcrypt.dll", "int BCryptVerifySignature(void*, void*, void*, dword, void*, dword, dword)")
# 呼び出し: BCryptVerifySignature(hKey, pPaddingInfo, pbHash, cbHash, pbSignature, cbSignature, dwFlags)
# hKey : BCRYPT_KEY_HANDLE -> "void*"
# pPaddingInfo : void* optional -> "void*"
# pbHash : BYTE* -> "void*"
# cbHash : DWORD -> "dword"
# pbSignature : BYTE* -> "void*"
# cbSignature : DWORD -> "dword"
# dwFlags : BCRYPT_FLAGS -> "dword"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。