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SslSignHash

関数

SSL秘密鍵でハッシュ値に署名する。

DLLncrypt.dll呼出規約winapi

シグネチャ

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

HRESULT SslSignHash(
    NCRYPT_PROV_HANDLE hSslProvider,
    NCRYPT_KEY_HANDLE hPrivateKey,
    BYTE* pbHashValue,
    DWORD cbHashValue,
    BYTE* pbSignature,   // optional
    DWORD cbSignature,
    DWORD* pcbResult,
    DWORD dwFlags
);

パラメーター

名前	型	方向	説明
hSslProvider	NCRYPT_PROV_HANDLE	in	Schannel SSLプロバイダのハンドル。
hPrivateKey	NCRYPT_KEY_HANDLE	in	署名に使用する秘密鍵のハンドル。
pbHashValue	BYTE*	in	署名対象のハッシュ値へのポインタ。
cbHashValue	DWORD	in	pbHashValueのバイト数。
pbSignature	BYTE*	outoptional	生成した署名を書き込む出力バッファ。
cbSignature	DWORD	in	pbSignatureのバイト数。
pcbResult	DWORD*	out	実際に書き込まれた署名のバイト数を受け取る出力先。
dwFlags	DWORD	in	動作を制御するフラグ。

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT SslSignHash(
    NCRYPT_PROV_HANDLE hSslProvider,
    NCRYPT_KEY_HANDLE hPrivateKey,
    BYTE* pbHashValue,
    DWORD cbHashValue,
    BYTE* pbSignature,   // optional
    DWORD cbSignature,
    DWORD* pcbResult,
    DWORD dwFlags
);

[DllImport("ncrypt.dll", ExactSpelling = true)]
static extern int SslSignHash(
    UIntPtr hSslProvider,   // NCRYPT_PROV_HANDLE
    UIntPtr hPrivateKey,   // NCRYPT_KEY_HANDLE
    IntPtr pbHashValue,   // BYTE*
    uint cbHashValue,   // DWORD
    IntPtr pbSignature,   // BYTE* optional, out
    uint cbSignature,   // DWORD
    out uint pcbResult,   // DWORD* out
    uint dwFlags   // DWORD
);

<DllImport("ncrypt.dll", ExactSpelling:=True)>
Public Shared Function SslSignHash(
    hSslProvider As UIntPtr,   ' NCRYPT_PROV_HANDLE
    hPrivateKey As UIntPtr,   ' NCRYPT_KEY_HANDLE
    pbHashValue As IntPtr,   ' BYTE*
    cbHashValue As UInteger,   ' DWORD
    pbSignature As IntPtr,   ' BYTE* optional, out
    cbSignature As UInteger,   ' DWORD
    <Out> ByRef pcbResult As UInteger,   ' DWORD* out
    dwFlags As UInteger   ' DWORD
) As Integer
End Function

' hSslProvider : NCRYPT_PROV_HANDLE
' hPrivateKey : NCRYPT_KEY_HANDLE
' pbHashValue : BYTE*
' cbHashValue : DWORD
' pbSignature : BYTE* optional, out
' cbSignature : DWORD
' pcbResult : DWORD* out
' dwFlags : DWORD
Declare PtrSafe Function SslSignHash Lib "ncrypt" ( _
    ByVal hSslProvider As LongPtr, _
    ByVal hPrivateKey As LongPtr, _
    ByVal pbHashValue As LongPtr, _
    ByVal cbHashValue As Long, _
    ByVal pbSignature As LongPtr, _
    ByVal cbSignature As Long, _
    ByRef pcbResult 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

SslSignHash = ctypes.windll.ncrypt.SslSignHash
SslSignHash.restype = ctypes.c_int
SslSignHash.argtypes = [
    ctypes.c_size_t,  # hSslProvider : NCRYPT_PROV_HANDLE
    ctypes.c_size_t,  # hPrivateKey : NCRYPT_KEY_HANDLE
    ctypes.POINTER(ctypes.c_ubyte),  # pbHashValue : BYTE*
    wintypes.DWORD,  # cbHashValue : DWORD
    ctypes.POINTER(ctypes.c_ubyte),  # pbSignature : BYTE* optional, out
    wintypes.DWORD,  # cbSignature : DWORD
    ctypes.POINTER(wintypes.DWORD),  # pcbResult : DWORD* out
    wintypes.DWORD,  # dwFlags : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ncrypt.dll')
SslSignHash = Fiddle::Function.new(
  lib['SslSignHash'],
  [
    Fiddle::TYPE_UINTPTR_T,  # hSslProvider : NCRYPT_PROV_HANDLE
    Fiddle::TYPE_UINTPTR_T,  # hPrivateKey : NCRYPT_KEY_HANDLE
    Fiddle::TYPE_VOIDP,  # pbHashValue : BYTE*
    -Fiddle::TYPE_INT,  # cbHashValue : DWORD
    Fiddle::TYPE_VOIDP,  # pbSignature : BYTE* optional, out
    -Fiddle::TYPE_INT,  # cbSignature : DWORD
    Fiddle::TYPE_VOIDP,  # pcbResult : DWORD* out
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "ncrypt")]
extern "system" {
    fn SslSignHash(
        hSslProvider: usize,  // NCRYPT_PROV_HANDLE
        hPrivateKey: usize,  // NCRYPT_KEY_HANDLE
        pbHashValue: *mut u8,  // BYTE*
        cbHashValue: u32,  // DWORD
        pbSignature: *mut u8,  // BYTE* optional, out
        cbSignature: u32,  // DWORD
        pcbResult: *mut u32,  // DWORD* out
        dwFlags: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ncrypt.dll")]
public static extern int SslSignHash(UIntPtr hSslProvider, UIntPtr hPrivateKey, IntPtr pbHashValue, uint cbHashValue, IntPtr pbSignature, uint cbSignature, out uint pcbResult, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ncrypt_SslSignHash' -Namespace Win32 -PassThru
# $api::SslSignHash(hSslProvider, hPrivateKey, pbHashValue, cbHashValue, pbSignature, cbSignature, pcbResult, dwFlags)

#uselib "ncrypt.dll"
#func global SslSignHash "SslSignHash" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; SslSignHash hSslProvider, hPrivateKey, varptr(pbHashValue), cbHashValue, varptr(pbSignature), cbSignature, varptr(pcbResult), dwFlags   ; 戻り値は stat
; hSslProvider : NCRYPT_PROV_HANDLE -> "sptr"
; hPrivateKey : NCRYPT_KEY_HANDLE -> "sptr"
; pbHashValue : BYTE* -> "sptr"
; cbHashValue : DWORD -> "sptr"
; pbSignature : BYTE* optional, out -> "sptr"
; cbSignature : DWORD -> "sptr"
; pcbResult : DWORD* out -> "sptr"
; dwFlags : DWORD -> "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。

出力引数:

#uselib "ncrypt.dll"
#cfunc global SslSignHash "SslSignHash" sptr, sptr, var, int, var, int, var, int
; res = SslSignHash(hSslProvider, hPrivateKey, pbHashValue, cbHashValue, pbSignature, cbSignature, pcbResult, dwFlags)
; hSslProvider : NCRYPT_PROV_HANDLE -> "sptr"
; hPrivateKey : NCRYPT_KEY_HANDLE -> "sptr"
; pbHashValue : BYTE* -> "var"
; cbHashValue : DWORD -> "int"
; pbSignature : BYTE* optional, out -> "var"
; cbSignature : DWORD -> "int"
; pcbResult : DWORD* out -> "var"
; dwFlags : DWORD -> "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。#uselib "ncrypt.dll"
#cfunc global SslSignHash "SslSignHash" sptr, sptr, sptr, int, sptr, int, sptr, int
; res = SslSignHash(hSslProvider, hPrivateKey, varptr(pbHashValue), cbHashValue, varptr(pbSignature), cbSignature, varptr(pcbResult), dwFlags)
; hSslProvider : NCRYPT_PROV_HANDLE -> "sptr"
; hPrivateKey : NCRYPT_KEY_HANDLE -> "sptr"
; pbHashValue : BYTE* -> "sptr"
; cbHashValue : DWORD -> "int"
; pbSignature : BYTE* optional, out -> "sptr"
; cbSignature : DWORD -> "int"
; pcbResult : DWORD* out -> "sptr"
; dwFlags : DWORD -> "int"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; HRESULT SslSignHash(NCRYPT_PROV_HANDLE hSslProvider, NCRYPT_KEY_HANDLE hPrivateKey, BYTE* pbHashValue, DWORD cbHashValue, BYTE* pbSignature, DWORD cbSignature, DWORD* pcbResult, DWORD dwFlags)
#uselib "ncrypt.dll"
#cfunc global SslSignHash "SslSignHash" intptr, intptr, var, int, var, int, var, int
; res = SslSignHash(hSslProvider, hPrivateKey, pbHashValue, cbHashValue, pbSignature, cbSignature, pcbResult, dwFlags)
; hSslProvider : NCRYPT_PROV_HANDLE -> "intptr"
; hPrivateKey : NCRYPT_KEY_HANDLE -> "intptr"
; pbHashValue : BYTE* -> "var"
; cbHashValue : DWORD -> "int"
; pbSignature : BYTE* optional, out -> "var"
; cbSignature : DWORD -> "int"
; pcbResult : DWORD* out -> "var"
; dwFlags : DWORD -> "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。; HRESULT SslSignHash(NCRYPT_PROV_HANDLE hSslProvider, NCRYPT_KEY_HANDLE hPrivateKey, BYTE* pbHashValue, DWORD cbHashValue, BYTE* pbSignature, DWORD cbSignature, DWORD* pcbResult, DWORD dwFlags)
#uselib "ncrypt.dll"
#cfunc global SslSignHash "SslSignHash" intptr, intptr, intptr, int, intptr, int, intptr, int
; res = SslSignHash(hSslProvider, hPrivateKey, varptr(pbHashValue), cbHashValue, varptr(pbSignature), cbSignature, varptr(pcbResult), dwFlags)
; hSslProvider : NCRYPT_PROV_HANDLE -> "intptr"
; hPrivateKey : NCRYPT_KEY_HANDLE -> "intptr"
; pbHashValue : BYTE* -> "intptr"
; cbHashValue : DWORD -> "int"
; pbSignature : BYTE* optional, out -> "intptr"
; cbSignature : DWORD -> "int"
; pcbResult : DWORD* out -> "intptr"
; dwFlags : DWORD -> "int"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

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

var (
	ncrypt = windows.NewLazySystemDLL("ncrypt.dll")
	procSslSignHash = ncrypt.NewProc("SslSignHash")
)

// hSslProvider (NCRYPT_PROV_HANDLE), hPrivateKey (NCRYPT_KEY_HANDLE), pbHashValue (BYTE*), cbHashValue (DWORD), pbSignature (BYTE* optional, out), cbSignature (DWORD), pcbResult (DWORD* out), dwFlags (DWORD)
r1, _, err := procSslSignHash.Call(
	uintptr(hSslProvider),
	uintptr(hPrivateKey),
	uintptr(pbHashValue),
	uintptr(cbHashValue),
	uintptr(pbSignature),
	uintptr(cbSignature),
	uintptr(pcbResult),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function SslSignHash(
  hSslProvider: NativeUInt;   // NCRYPT_PROV_HANDLE
  hPrivateKey: NativeUInt;   // NCRYPT_KEY_HANDLE
  pbHashValue: Pointer;   // BYTE*
  cbHashValue: DWORD;   // DWORD
  pbSignature: Pointer;   // BYTE* optional, out
  cbSignature: DWORD;   // DWORD
  pcbResult: Pointer;   // DWORD* out
  dwFlags: DWORD   // DWORD
): Integer; stdcall;
  external 'ncrypt.dll' name 'SslSignHash';

result := DllCall("ncrypt\SslSignHash"
    , "UPtr", hSslProvider   ; NCRYPT_PROV_HANDLE
    , "UPtr", hPrivateKey   ; NCRYPT_KEY_HANDLE
    , "Ptr", pbHashValue   ; BYTE*
    , "UInt", cbHashValue   ; DWORD
    , "Ptr", pbSignature   ; BYTE* optional, out
    , "UInt", cbSignature   ; DWORD
    , "Ptr", pcbResult   ; DWORD* out
    , "UInt", dwFlags   ; DWORD
    , "Int")   ; return: HRESULT

●SslSignHash(hSslProvider, hPrivateKey, pbHashValue, cbHashValue, pbSignature, cbSignature, pcbResult, dwFlags) = DLL("ncrypt.dll", "int SslSignHash(int, int, void*, dword, void*, dword, void*, dword)")
# 呼び出し: SslSignHash(hSslProvider, hPrivateKey, pbHashValue, cbHashValue, pbSignature, cbSignature, pcbResult, dwFlags)
# hSslProvider : NCRYPT_PROV_HANDLE -> "int"
# hPrivateKey : NCRYPT_KEY_HANDLE -> "int"
# pbHashValue : BYTE* -> "void*"
# cbHashValue : DWORD -> "dword"
# pbSignature : BYTE* optional, out -> "void*"
# cbSignature : DWORD -> "dword"
# pcbResult : DWORD* out -> "void*"
# dwFlags : DWORD -> "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)。

const std = @import("std");

extern "ncrypt" fn SslSignHash(
    hSslProvider: usize, // NCRYPT_PROV_HANDLE
    hPrivateKey: usize, // NCRYPT_KEY_HANDLE
    pbHashValue: [*c]u8, // BYTE*
    cbHashValue: u32, // DWORD
    pbSignature: [*c]u8, // BYTE* optional, out
    cbSignature: u32, // DWORD
    pcbResult: [*c]u32, // DWORD* out
    dwFlags: u32 // DWORD
) callconv(std.os.windows.WINAPI) i32;

proc SslSignHash(
    hSslProvider: uint,  # NCRYPT_PROV_HANDLE
    hPrivateKey: uint,  # NCRYPT_KEY_HANDLE
    pbHashValue: ptr uint8,  # BYTE*
    cbHashValue: uint32,  # DWORD
    pbSignature: ptr uint8,  # BYTE* optional, out
    cbSignature: uint32,  # DWORD
    pcbResult: ptr uint32,  # DWORD* out
    dwFlags: uint32  # DWORD
): int32 {.importc: "SslSignHash", stdcall, dynlib: "ncrypt.dll".}

pragma(lib, "ncrypt");
extern(Windows)
int SslSignHash(
    size_t hSslProvider,   // NCRYPT_PROV_HANDLE
    size_t hPrivateKey,   // NCRYPT_KEY_HANDLE
    ubyte* pbHashValue,   // BYTE*
    uint cbHashValue,   // DWORD
    ubyte* pbSignature,   // BYTE* optional, out
    uint cbSignature,   // DWORD
    uint* pcbResult,   // DWORD* out
    uint dwFlags   // DWORD
);

ccall((:SslSignHash, "ncrypt.dll"), stdcall, Int32,
      (Csize_t, Csize_t, Ptr{UInt8}, UInt32, Ptr{UInt8}, UInt32, Ptr{UInt32}, UInt32),
      hSslProvider, hPrivateKey, pbHashValue, cbHashValue, pbSignature, cbSignature, pcbResult, dwFlags)
# hSslProvider : NCRYPT_PROV_HANDLE -> Csize_t
# hPrivateKey : NCRYPT_KEY_HANDLE -> Csize_t
# pbHashValue : BYTE* -> Ptr{UInt8}
# cbHashValue : DWORD -> UInt32
# pbSignature : BYTE* optional, out -> Ptr{UInt8}
# cbSignature : DWORD -> UInt32
# pcbResult : DWORD* out -> Ptr{UInt32}
# dwFlags : DWORD -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t SslSignHash(
    uintptr_t hSslProvider,
    uintptr_t hPrivateKey,
    uint8_t* pbHashValue,
    uint32_t cbHashValue,
    uint8_t* pbSignature,
    uint32_t cbSignature,
    uint32_t* pcbResult,
    uint32_t dwFlags);
]]
local ncrypt = ffi.load("ncrypt")
-- ncrypt.SslSignHash(hSslProvider, hPrivateKey, pbHashValue, cbHashValue, pbSignature, cbSignature, pcbResult, dwFlags)
-- hSslProvider : NCRYPT_PROV_HANDLE
-- hPrivateKey : NCRYPT_KEY_HANDLE
-- pbHashValue : BYTE*
-- cbHashValue : DWORD
-- pbSignature : BYTE* optional, out
-- cbSignature : DWORD
-- pcbResult : DWORD* out
-- dwFlags : DWORD
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('ncrypt.dll');
const SslSignHash = lib.func('__stdcall', 'SslSignHash', 'int32_t', ['uintptr_t', 'uintptr_t', 'uint8_t *', 'uint32_t', 'uint8_t *', 'uint32_t', 'uint32_t *', 'uint32_t']);
// SslSignHash(hSslProvider, hPrivateKey, pbHashValue, cbHashValue, pbSignature, cbSignature, pcbResult, dwFlags)
// hSslProvider : NCRYPT_PROV_HANDLE -> 'uintptr_t'
// hPrivateKey : NCRYPT_KEY_HANDLE -> 'uintptr_t'
// pbHashValue : BYTE* -> 'uint8_t *'
// cbHashValue : DWORD -> 'uint32_t'
// pbSignature : BYTE* optional, out -> 'uint8_t *'
// cbSignature : DWORD -> 'uint32_t'
// pcbResult : DWORD* out -> 'uint32_t *'
// dwFlags : DWORD -> 'uint32_t'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("ncrypt.dll", {
  SslSignHash: { parameters: ["usize", "usize", "pointer", "u32", "pointer", "u32", "pointer", "u32"], result: "i32" },
});
// lib.symbols.SslSignHash(hSslProvider, hPrivateKey, pbHashValue, cbHashValue, pbSignature, cbSignature, pcbResult, dwFlags)
// hSslProvider : NCRYPT_PROV_HANDLE -> "usize"
// hPrivateKey : NCRYPT_KEY_HANDLE -> "usize"
// pbHashValue : BYTE* -> "pointer"
// cbHashValue : DWORD -> "u32"
// pbSignature : BYTE* optional, out -> "pointer"
// cbSignature : DWORD -> "u32"
// pcbResult : DWORD* out -> "pointer"
// dwFlags : DWORD -> "u32"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t SslSignHash(
    size_t hSslProvider,
    size_t hPrivateKey,
    uint8_t* pbHashValue,
    uint32_t cbHashValue,
    uint8_t* pbSignature,
    uint32_t cbSignature,
    uint32_t* pcbResult,
    uint32_t dwFlags);
C, "ncrypt.dll");
// $ffi->SslSignHash(hSslProvider, hPrivateKey, pbHashValue, cbHashValue, pbSignature, cbSignature, pcbResult, dwFlags);
// hSslProvider : NCRYPT_PROV_HANDLE
// hPrivateKey : NCRYPT_KEY_HANDLE
// pbHashValue : BYTE*
// cbHashValue : DWORD
// pbSignature : BYTE* optional, out
// cbSignature : DWORD
// pcbResult : DWORD* out
// dwFlags : DWORD
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Ncrypt extends StdCallLibrary {
    Ncrypt INSTANCE = Native.load("ncrypt", Ncrypt.class);
    int SslSignHash(
        long hSslProvider,   // NCRYPT_PROV_HANDLE
        long hPrivateKey,   // NCRYPT_KEY_HANDLE
        byte[] pbHashValue,   // BYTE*
        int cbHashValue,   // DWORD
        byte[] pbSignature,   // BYTE* optional, out
        int cbSignature,   // DWORD
        IntByReference pcbResult,   // DWORD* out
        int dwFlags   // DWORD
    );
}

@[Link("ncrypt")]
lib Libncrypt
  fun SslSignHash = SslSignHash(
    hSslProvider : LibC::SizeT,   # NCRYPT_PROV_HANDLE
    hPrivateKey : LibC::SizeT,   # NCRYPT_KEY_HANDLE
    pbHashValue : UInt8*,   # BYTE*
    cbHashValue : UInt32,   # DWORD
    pbSignature : UInt8*,   # BYTE* optional, out
    cbSignature : UInt32,   # DWORD
    pcbResult : UInt32*,   # DWORD* out
    dwFlags : UInt32   # DWORD
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef SslSignHashNative = Int32 Function(UintPtr, UintPtr, Pointer<Uint8>, Uint32, Pointer<Uint8>, Uint32, Pointer<Uint32>, Uint32);
typedef SslSignHashDart = int Function(int, int, Pointer<Uint8>, int, Pointer<Uint8>, int, Pointer<Uint32>, int);
final SslSignHash = DynamicLibrary.open('ncrypt.dll')
    .lookupFunction<SslSignHashNative, SslSignHashDart>('SslSignHash');
// hSslProvider : NCRYPT_PROV_HANDLE -> UintPtr
// hPrivateKey : NCRYPT_KEY_HANDLE -> UintPtr
// pbHashValue : BYTE* -> Pointer<Uint8>
// cbHashValue : DWORD -> Uint32
// pbSignature : BYTE* optional, out -> Pointer<Uint8>
// cbSignature : DWORD -> Uint32
// pcbResult : DWORD* out -> Pointer<Uint32>
// dwFlags : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function SslSignHash(
  hSslProvider: NativeUInt;   // NCRYPT_PROV_HANDLE
  hPrivateKey: NativeUInt;   // NCRYPT_KEY_HANDLE
  pbHashValue: Pointer;   // BYTE*
  cbHashValue: DWORD;   // DWORD
  pbSignature: Pointer;   // BYTE* optional, out
  cbSignature: DWORD;   // DWORD
  pcbResult: Pointer;   // DWORD* out
  dwFlags: DWORD   // DWORD
): Integer; stdcall;
  external 'ncrypt.dll' name 'SslSignHash';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "SslSignHash"
  c_SslSignHash :: CUIntPtr -> CUIntPtr -> Ptr Word8 -> Word32 -> Ptr Word8 -> Word32 -> Ptr Word32 -> Word32 -> IO Int32
-- hSslProvider : NCRYPT_PROV_HANDLE -> CUIntPtr
-- hPrivateKey : NCRYPT_KEY_HANDLE -> CUIntPtr
-- pbHashValue : BYTE* -> Ptr Word8
-- cbHashValue : DWORD -> Word32
-- pbSignature : BYTE* optional, out -> Ptr Word8
-- cbSignature : DWORD -> Word32
-- pcbResult : DWORD* out -> Ptr Word32
-- dwFlags : DWORD -> Word32
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let sslsignhash =
  foreign "SslSignHash"
    (size_t @-> size_t @-> (ptr uint8_t) @-> uint32_t @-> (ptr uint8_t) @-> uint32_t @-> (ptr uint32_t) @-> uint32_t @-> returning int32_t)
(* hSslProvider : NCRYPT_PROV_HANDLE -> size_t *)
(* hPrivateKey : NCRYPT_KEY_HANDLE -> size_t *)
(* pbHashValue : BYTE* -> (ptr uint8_t) *)
(* cbHashValue : DWORD -> uint32_t *)
(* pbSignature : BYTE* optional, out -> (ptr uint8_t) *)
(* cbSignature : DWORD -> uint32_t *)
(* pcbResult : DWORD* out -> (ptr uint32_t) *)
(* dwFlags : DWORD -> uint32_t *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library ncrypt (t "ncrypt.dll"))
(cffi:use-foreign-library ncrypt)

(cffi:defcfun ("SslSignHash" ssl-sign-hash :convention :stdcall) :int32
  (h-ssl-provider :uint64)   ; NCRYPT_PROV_HANDLE
  (h-private-key :uint64)   ; NCRYPT_KEY_HANDLE
  (pb-hash-value :pointer)   ; BYTE*
  (cb-hash-value :uint32)   ; DWORD
  (pb-signature :pointer)   ; BYTE* optional, out
  (cb-signature :uint32)   ; DWORD
  (pcb-result :pointer)   ; DWORD* out
  (dw-flags :uint32))   ; DWORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $SslSignHash = Win32::API::More->new('ncrypt',
    'int SslSignHash(WPARAM hSslProvider, WPARAM hPrivateKey, LPVOID pbHashValue, DWORD cbHashValue, LPVOID pbSignature, DWORD cbSignature, LPVOID pcbResult, DWORD dwFlags)');
# my $ret = $SslSignHash->Call($hSslProvider, $hPrivateKey, $pbHashValue, $cbHashValue, $pbSignature, $cbSignature, $pcbResult, $dwFlags);
# hSslProvider : NCRYPT_PROV_HANDLE -> WPARAM
# hPrivateKey : NCRYPT_KEY_HANDLE -> WPARAM
# pbHashValue : BYTE* -> LPVOID
# cbHashValue : DWORD -> DWORD
# pbSignature : BYTE* optional, out -> LPVOID
# cbSignature : DWORD -> DWORD
# pcbResult : DWORD* out -> LPVOID
# dwFlags : DWORD -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。