ホーム › Security.Cryptography › SslExportKeyingMaterial

SslExportKeyingMaterial

関数

SSLマスター鍵から鍵生成材料をエクスポートする。

DLLncrypt.dll呼出規約winapi

シグネチャ

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

HRESULT SslExportKeyingMaterial(
    NCRYPT_PROV_HANDLE hSslProvider,
    NCRYPT_KEY_HANDLE hMasterKey,
    LPSTR sLabel,
    BYTE* pbRandoms,   // optional
    DWORD cbRandoms,
    BYTE* pbContextValue,   // optional
    WORD cbContextValue,
    BYTE* pbOutput,
    DWORD cbOutput,
    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。
hMasterKey	NCRYPT_KEY_HANDLE	in	鍵素材を導出する元のマスター鍵ハンドル。
sLabel	LPSTR	in	RFC5705に基づくエクスポート用ラベル文字列(ANSI)。
pbRandoms	BYTE*	inoptional	クライアント/サーバランダム値を連結したデータへのポインタ。
cbRandoms	DWORD	in	pbRandomsのバイト数。
pbContextValue	BYTE*	inoptional	オプションのコンテキスト値データへのポインタ。NULL可。
cbContextValue	WORD	in	pbContextValueのバイト数(WORD)。
pbOutput	BYTE*	out	導出した鍵素材を書き込む出力バッファ。
cbOutput	DWORD	in	pbOutputのバイト数。要求する鍵素材長を表す。
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 SslExportKeyingMaterial(
    NCRYPT_PROV_HANDLE hSslProvider,
    NCRYPT_KEY_HANDLE hMasterKey,
    LPSTR sLabel,
    BYTE* pbRandoms,   // optional
    DWORD cbRandoms,
    BYTE* pbContextValue,   // optional
    WORD cbContextValue,
    BYTE* pbOutput,
    DWORD cbOutput,
    DWORD dwFlags
);

[DllImport("ncrypt.dll", ExactSpelling = true)]
static extern int SslExportKeyingMaterial(
    UIntPtr hSslProvider,   // NCRYPT_PROV_HANDLE
    UIntPtr hMasterKey,   // NCRYPT_KEY_HANDLE
    [MarshalAs(UnmanagedType.LPStr)] string sLabel,   // LPSTR
    IntPtr pbRandoms,   // BYTE* optional
    uint cbRandoms,   // DWORD
    IntPtr pbContextValue,   // BYTE* optional
    ushort cbContextValue,   // WORD
    IntPtr pbOutput,   // BYTE* out
    uint cbOutput,   // DWORD
    uint dwFlags   // DWORD
);

<DllImport("ncrypt.dll", ExactSpelling:=True)>
Public Shared Function SslExportKeyingMaterial(
    hSslProvider As UIntPtr,   ' NCRYPT_PROV_HANDLE
    hMasterKey As UIntPtr,   ' NCRYPT_KEY_HANDLE
    <MarshalAs(UnmanagedType.LPStr)> sLabel As String,   ' LPSTR
    pbRandoms As IntPtr,   ' BYTE* optional
    cbRandoms As UInteger,   ' DWORD
    pbContextValue As IntPtr,   ' BYTE* optional
    cbContextValue As UShort,   ' WORD
    pbOutput As IntPtr,   ' BYTE* out
    cbOutput As UInteger,   ' DWORD
    dwFlags As UInteger   ' DWORD
) As Integer
End Function

' hSslProvider : NCRYPT_PROV_HANDLE
' hMasterKey : NCRYPT_KEY_HANDLE
' sLabel : LPSTR
' pbRandoms : BYTE* optional
' cbRandoms : DWORD
' pbContextValue : BYTE* optional
' cbContextValue : WORD
' pbOutput : BYTE* out
' cbOutput : DWORD
' dwFlags : DWORD
Declare PtrSafe Function SslExportKeyingMaterial Lib "ncrypt" ( _
    ByVal hSslProvider As LongPtr, _
    ByVal hMasterKey As LongPtr, _
    ByVal sLabel As String, _
    ByVal pbRandoms As LongPtr, _
    ByVal cbRandoms As Long, _
    ByVal pbContextValue As LongPtr, _
    ByVal cbContextValue As Integer, _
    ByVal pbOutput As LongPtr, _
    ByVal cbOutput 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

SslExportKeyingMaterial = ctypes.windll.ncrypt.SslExportKeyingMaterial
SslExportKeyingMaterial.restype = ctypes.c_int
SslExportKeyingMaterial.argtypes = [
    ctypes.c_size_t,  # hSslProvider : NCRYPT_PROV_HANDLE
    ctypes.c_size_t,  # hMasterKey : NCRYPT_KEY_HANDLE
    wintypes.LPCSTR,  # sLabel : LPSTR
    ctypes.POINTER(ctypes.c_ubyte),  # pbRandoms : BYTE* optional
    wintypes.DWORD,  # cbRandoms : DWORD
    ctypes.POINTER(ctypes.c_ubyte),  # pbContextValue : BYTE* optional
    ctypes.c_ushort,  # cbContextValue : WORD
    ctypes.POINTER(ctypes.c_ubyte),  # pbOutput : BYTE* out
    wintypes.DWORD,  # cbOutput : DWORD
    wintypes.DWORD,  # dwFlags : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ncrypt.dll')
SslExportKeyingMaterial = Fiddle::Function.new(
  lib['SslExportKeyingMaterial'],
  [
    Fiddle::TYPE_UINTPTR_T,  # hSslProvider : NCRYPT_PROV_HANDLE
    Fiddle::TYPE_UINTPTR_T,  # hMasterKey : NCRYPT_KEY_HANDLE
    Fiddle::TYPE_VOIDP,  # sLabel : LPSTR
    Fiddle::TYPE_VOIDP,  # pbRandoms : BYTE* optional
    -Fiddle::TYPE_INT,  # cbRandoms : DWORD
    Fiddle::TYPE_VOIDP,  # pbContextValue : BYTE* optional
    -Fiddle::TYPE_SHORT,  # cbContextValue : WORD
    Fiddle::TYPE_VOIDP,  # pbOutput : BYTE* out
    -Fiddle::TYPE_INT,  # cbOutput : DWORD
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "ncrypt")]
extern "system" {
    fn SslExportKeyingMaterial(
        hSslProvider: usize,  // NCRYPT_PROV_HANDLE
        hMasterKey: usize,  // NCRYPT_KEY_HANDLE
        sLabel: *mut u8,  // LPSTR
        pbRandoms: *mut u8,  // BYTE* optional
        cbRandoms: u32,  // DWORD
        pbContextValue: *mut u8,  // BYTE* optional
        cbContextValue: u16,  // WORD
        pbOutput: *mut u8,  // BYTE* out
        cbOutput: u32,  // DWORD
        dwFlags: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ncrypt.dll")]
public static extern int SslExportKeyingMaterial(UIntPtr hSslProvider, UIntPtr hMasterKey, [MarshalAs(UnmanagedType.LPStr)] string sLabel, IntPtr pbRandoms, uint cbRandoms, IntPtr pbContextValue, ushort cbContextValue, IntPtr pbOutput, uint cbOutput, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ncrypt_SslExportKeyingMaterial' -Namespace Win32 -PassThru
# $api::SslExportKeyingMaterial(hSslProvider, hMasterKey, sLabel, pbRandoms, cbRandoms, pbContextValue, cbContextValue, pbOutput, cbOutput, dwFlags)

#uselib "ncrypt.dll"
#func global SslExportKeyingMaterial "SslExportKeyingMaterial" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; SslExportKeyingMaterial hSslProvider, hMasterKey, sLabel, varptr(pbRandoms), cbRandoms, varptr(pbContextValue), cbContextValue, varptr(pbOutput), cbOutput, dwFlags   ; 戻り値は stat
; hSslProvider : NCRYPT_PROV_HANDLE -> "sptr"
; hMasterKey : NCRYPT_KEY_HANDLE -> "sptr"
; sLabel : LPSTR -> "sptr"
; pbRandoms : BYTE* optional -> "sptr"
; cbRandoms : DWORD -> "sptr"
; pbContextValue : BYTE* optional -> "sptr"
; cbContextValue : WORD -> "sptr"
; pbOutput : BYTE* out -> "sptr"
; cbOutput : DWORD -> "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 SslExportKeyingMaterial "SslExportKeyingMaterial" sptr, sptr, str, var, int, var, int, var, int, int
; res = SslExportKeyingMaterial(hSslProvider, hMasterKey, sLabel, pbRandoms, cbRandoms, pbContextValue, cbContextValue, pbOutput, cbOutput, dwFlags)
; hSslProvider : NCRYPT_PROV_HANDLE -> "sptr"
; hMasterKey : NCRYPT_KEY_HANDLE -> "sptr"
; sLabel : LPSTR -> "str"
; pbRandoms : BYTE* optional -> "var"
; cbRandoms : DWORD -> "int"
; pbContextValue : BYTE* optional -> "var"
; cbContextValue : WORD -> "int"
; pbOutput : BYTE* out -> "var"
; cbOutput : DWORD -> "int"
; 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 SslExportKeyingMaterial "SslExportKeyingMaterial" sptr, sptr, str, sptr, int, sptr, int, sptr, int, int
; res = SslExportKeyingMaterial(hSslProvider, hMasterKey, sLabel, varptr(pbRandoms), cbRandoms, varptr(pbContextValue), cbContextValue, varptr(pbOutput), cbOutput, dwFlags)
; hSslProvider : NCRYPT_PROV_HANDLE -> "sptr"
; hMasterKey : NCRYPT_KEY_HANDLE -> "sptr"
; sLabel : LPSTR -> "str"
; pbRandoms : BYTE* optional -> "sptr"
; cbRandoms : DWORD -> "int"
; pbContextValue : BYTE* optional -> "sptr"
; cbContextValue : WORD -> "int"
; pbOutput : BYTE* out -> "sptr"
; cbOutput : DWORD -> "int"
; 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 SslExportKeyingMaterial(NCRYPT_PROV_HANDLE hSslProvider, NCRYPT_KEY_HANDLE hMasterKey, LPSTR sLabel, BYTE* pbRandoms, DWORD cbRandoms, BYTE* pbContextValue, WORD cbContextValue, BYTE* pbOutput, DWORD cbOutput, DWORD dwFlags)
#uselib "ncrypt.dll"
#cfunc global SslExportKeyingMaterial "SslExportKeyingMaterial" intptr, intptr, str, var, int, var, int, var, int, int
; res = SslExportKeyingMaterial(hSslProvider, hMasterKey, sLabel, pbRandoms, cbRandoms, pbContextValue, cbContextValue, pbOutput, cbOutput, dwFlags)
; hSslProvider : NCRYPT_PROV_HANDLE -> "intptr"
; hMasterKey : NCRYPT_KEY_HANDLE -> "intptr"
; sLabel : LPSTR -> "str"
; pbRandoms : BYTE* optional -> "var"
; cbRandoms : DWORD -> "int"
; pbContextValue : BYTE* optional -> "var"
; cbContextValue : WORD -> "int"
; pbOutput : BYTE* out -> "var"
; cbOutput : DWORD -> "int"
; 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 SslExportKeyingMaterial(NCRYPT_PROV_HANDLE hSslProvider, NCRYPT_KEY_HANDLE hMasterKey, LPSTR sLabel, BYTE* pbRandoms, DWORD cbRandoms, BYTE* pbContextValue, WORD cbContextValue, BYTE* pbOutput, DWORD cbOutput, DWORD dwFlags)
#uselib "ncrypt.dll"
#cfunc global SslExportKeyingMaterial "SslExportKeyingMaterial" intptr, intptr, str, intptr, int, intptr, int, intptr, int, int
; res = SslExportKeyingMaterial(hSslProvider, hMasterKey, sLabel, varptr(pbRandoms), cbRandoms, varptr(pbContextValue), cbContextValue, varptr(pbOutput), cbOutput, dwFlags)
; hSslProvider : NCRYPT_PROV_HANDLE -> "intptr"
; hMasterKey : NCRYPT_KEY_HANDLE -> "intptr"
; sLabel : LPSTR -> "str"
; pbRandoms : BYTE* optional -> "intptr"
; cbRandoms : DWORD -> "int"
; pbContextValue : BYTE* optional -> "intptr"
; cbContextValue : WORD -> "int"
; pbOutput : BYTE* out -> "intptr"
; cbOutput : DWORD -> "int"
; 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")
	procSslExportKeyingMaterial = ncrypt.NewProc("SslExportKeyingMaterial")
)

// hSslProvider (NCRYPT_PROV_HANDLE), hMasterKey (NCRYPT_KEY_HANDLE), sLabel (LPSTR), pbRandoms (BYTE* optional), cbRandoms (DWORD), pbContextValue (BYTE* optional), cbContextValue (WORD), pbOutput (BYTE* out), cbOutput (DWORD), dwFlags (DWORD)
r1, _, err := procSslExportKeyingMaterial.Call(
	uintptr(hSslProvider),
	uintptr(hMasterKey),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(sLabel))),
	uintptr(pbRandoms),
	uintptr(cbRandoms),
	uintptr(pbContextValue),
	uintptr(cbContextValue),
	uintptr(pbOutput),
	uintptr(cbOutput),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function SslExportKeyingMaterial(
  hSslProvider: NativeUInt;   // NCRYPT_PROV_HANDLE
  hMasterKey: NativeUInt;   // NCRYPT_KEY_HANDLE
  sLabel: PAnsiChar;   // LPSTR
  pbRandoms: Pointer;   // BYTE* optional
  cbRandoms: DWORD;   // DWORD
  pbContextValue: Pointer;   // BYTE* optional
  cbContextValue: Word;   // WORD
  pbOutput: Pointer;   // BYTE* out
  cbOutput: DWORD;   // DWORD
  dwFlags: DWORD   // DWORD
): Integer; stdcall;
  external 'ncrypt.dll' name 'SslExportKeyingMaterial';

result := DllCall("ncrypt\SslExportKeyingMaterial"
    , "UPtr", hSslProvider   ; NCRYPT_PROV_HANDLE
    , "UPtr", hMasterKey   ; NCRYPT_KEY_HANDLE
    , "AStr", sLabel   ; LPSTR
    , "Ptr", pbRandoms   ; BYTE* optional
    , "UInt", cbRandoms   ; DWORD
    , "Ptr", pbContextValue   ; BYTE* optional
    , "UShort", cbContextValue   ; WORD
    , "Ptr", pbOutput   ; BYTE* out
    , "UInt", cbOutput   ; DWORD
    , "UInt", dwFlags   ; DWORD
    , "Int")   ; return: HRESULT

●SslExportKeyingMaterial(hSslProvider, hMasterKey, sLabel, pbRandoms, cbRandoms, pbContextValue, cbContextValue, pbOutput, cbOutput, dwFlags) = DLL("ncrypt.dll", "int SslExportKeyingMaterial(int, int, char*, void*, dword, void*, int, void*, dword, dword)")
# 呼び出し: SslExportKeyingMaterial(hSslProvider, hMasterKey, sLabel, pbRandoms, cbRandoms, pbContextValue, cbContextValue, pbOutput, cbOutput, dwFlags)
# hSslProvider : NCRYPT_PROV_HANDLE -> "int"
# hMasterKey : NCRYPT_KEY_HANDLE -> "int"
# sLabel : LPSTR -> "char*"
# pbRandoms : BYTE* optional -> "void*"
# cbRandoms : DWORD -> "dword"
# pbContextValue : BYTE* optional -> "void*"
# cbContextValue : WORD -> "int"
# pbOutput : BYTE* out -> "void*"
# cbOutput : DWORD -> "dword"
# 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 SslExportKeyingMaterial(
    hSslProvider: usize, // NCRYPT_PROV_HANDLE
    hMasterKey: usize, // NCRYPT_KEY_HANDLE
    sLabel: [*c]const u8, // LPSTR
    pbRandoms: [*c]u8, // BYTE* optional
    cbRandoms: u32, // DWORD
    pbContextValue: [*c]u8, // BYTE* optional
    cbContextValue: u16, // WORD
    pbOutput: [*c]u8, // BYTE* out
    cbOutput: u32, // DWORD
    dwFlags: u32 // DWORD
) callconv(std.os.windows.WINAPI) i32;

proc SslExportKeyingMaterial(
    hSslProvider: uint,  # NCRYPT_PROV_HANDLE
    hMasterKey: uint,  # NCRYPT_KEY_HANDLE
    sLabel: cstring,  # LPSTR
    pbRandoms: ptr uint8,  # BYTE* optional
    cbRandoms: uint32,  # DWORD
    pbContextValue: ptr uint8,  # BYTE* optional
    cbContextValue: uint16,  # WORD
    pbOutput: ptr uint8,  # BYTE* out
    cbOutput: uint32,  # DWORD
    dwFlags: uint32  # DWORD
): int32 {.importc: "SslExportKeyingMaterial", stdcall, dynlib: "ncrypt.dll".}

pragma(lib, "ncrypt");
extern(Windows)
int SslExportKeyingMaterial(
    size_t hSslProvider,   // NCRYPT_PROV_HANDLE
    size_t hMasterKey,   // NCRYPT_KEY_HANDLE
    const(char)* sLabel,   // LPSTR
    ubyte* pbRandoms,   // BYTE* optional
    uint cbRandoms,   // DWORD
    ubyte* pbContextValue,   // BYTE* optional
    ushort cbContextValue,   // WORD
    ubyte* pbOutput,   // BYTE* out
    uint cbOutput,   // DWORD
    uint dwFlags   // DWORD
);

ccall((:SslExportKeyingMaterial, "ncrypt.dll"), stdcall, Int32,
      (Csize_t, Csize_t, Cstring, Ptr{UInt8}, UInt32, Ptr{UInt8}, UInt16, Ptr{UInt8}, UInt32, UInt32),
      hSslProvider, hMasterKey, sLabel, pbRandoms, cbRandoms, pbContextValue, cbContextValue, pbOutput, cbOutput, dwFlags)
# hSslProvider : NCRYPT_PROV_HANDLE -> Csize_t
# hMasterKey : NCRYPT_KEY_HANDLE -> Csize_t
# sLabel : LPSTR -> Cstring
# pbRandoms : BYTE* optional -> Ptr{UInt8}
# cbRandoms : DWORD -> UInt32
# pbContextValue : BYTE* optional -> Ptr{UInt8}
# cbContextValue : WORD -> UInt16
# pbOutput : BYTE* out -> Ptr{UInt8}
# cbOutput : DWORD -> 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 SslExportKeyingMaterial(
    uintptr_t hSslProvider,
    uintptr_t hMasterKey,
    const char* sLabel,
    uint8_t* pbRandoms,
    uint32_t cbRandoms,
    uint8_t* pbContextValue,
    uint16_t cbContextValue,
    uint8_t* pbOutput,
    uint32_t cbOutput,
    uint32_t dwFlags);
]]
local ncrypt = ffi.load("ncrypt")
-- ncrypt.SslExportKeyingMaterial(hSslProvider, hMasterKey, sLabel, pbRandoms, cbRandoms, pbContextValue, cbContextValue, pbOutput, cbOutput, dwFlags)
-- hSslProvider : NCRYPT_PROV_HANDLE
-- hMasterKey : NCRYPT_KEY_HANDLE
-- sLabel : LPSTR
-- pbRandoms : BYTE* optional
-- cbRandoms : DWORD
-- pbContextValue : BYTE* optional
-- cbContextValue : WORD
-- pbOutput : BYTE* out
-- cbOutput : DWORD
-- 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 SslExportKeyingMaterial = lib.func('__stdcall', 'SslExportKeyingMaterial', 'int32_t', ['uintptr_t', 'uintptr_t', 'str', 'uint8_t *', 'uint32_t', 'uint8_t *', 'uint16_t', 'uint8_t *', 'uint32_t', 'uint32_t']);
// SslExportKeyingMaterial(hSslProvider, hMasterKey, sLabel, pbRandoms, cbRandoms, pbContextValue, cbContextValue, pbOutput, cbOutput, dwFlags)
// hSslProvider : NCRYPT_PROV_HANDLE -> 'uintptr_t'
// hMasterKey : NCRYPT_KEY_HANDLE -> 'uintptr_t'
// sLabel : LPSTR -> 'str'
// pbRandoms : BYTE* optional -> 'uint8_t *'
// cbRandoms : DWORD -> 'uint32_t'
// pbContextValue : BYTE* optional -> 'uint8_t *'
// cbContextValue : WORD -> 'uint16_t'
// pbOutput : BYTE* out -> 'uint8_t *'
// cbOutput : DWORD -> '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", {
  SslExportKeyingMaterial: { parameters: ["usize", "usize", "buffer", "pointer", "u32", "pointer", "u16", "pointer", "u32", "u32"], result: "i32" },
});
// lib.symbols.SslExportKeyingMaterial(hSslProvider, hMasterKey, sLabel, pbRandoms, cbRandoms, pbContextValue, cbContextValue, pbOutput, cbOutput, dwFlags)
// hSslProvider : NCRYPT_PROV_HANDLE -> "usize"
// hMasterKey : NCRYPT_KEY_HANDLE -> "usize"
// sLabel : LPSTR -> "buffer"
// pbRandoms : BYTE* optional -> "pointer"
// cbRandoms : DWORD -> "u32"
// pbContextValue : BYTE* optional -> "pointer"
// cbContextValue : WORD -> "u16"
// pbOutput : BYTE* out -> "pointer"
// cbOutput : DWORD -> "u32"
// 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 SslExportKeyingMaterial(
    size_t hSslProvider,
    size_t hMasterKey,
    const char* sLabel,
    uint8_t* pbRandoms,
    uint32_t cbRandoms,
    uint8_t* pbContextValue,
    uint16_t cbContextValue,
    uint8_t* pbOutput,
    uint32_t cbOutput,
    uint32_t dwFlags);
C, "ncrypt.dll");
// $ffi->SslExportKeyingMaterial(hSslProvider, hMasterKey, sLabel, pbRandoms, cbRandoms, pbContextValue, cbContextValue, pbOutput, cbOutput, dwFlags);
// hSslProvider : NCRYPT_PROV_HANDLE
// hMasterKey : NCRYPT_KEY_HANDLE
// sLabel : LPSTR
// pbRandoms : BYTE* optional
// cbRandoms : DWORD
// pbContextValue : BYTE* optional
// cbContextValue : WORD
// pbOutput : BYTE* out
// cbOutput : DWORD
// 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 SslExportKeyingMaterial(
        long hSslProvider,   // NCRYPT_PROV_HANDLE
        long hMasterKey,   // NCRYPT_KEY_HANDLE
        String sLabel,   // LPSTR
        byte[] pbRandoms,   // BYTE* optional
        int cbRandoms,   // DWORD
        byte[] pbContextValue,   // BYTE* optional
        short cbContextValue,   // WORD
        byte[] pbOutput,   // BYTE* out
        int cbOutput,   // DWORD
        int dwFlags   // DWORD
    );
}

@[Link("ncrypt")]
lib Libncrypt
  fun SslExportKeyingMaterial = SslExportKeyingMaterial(
    hSslProvider : LibC::SizeT,   # NCRYPT_PROV_HANDLE
    hMasterKey : LibC::SizeT,   # NCRYPT_KEY_HANDLE
    sLabel : UInt8*,   # LPSTR
    pbRandoms : UInt8*,   # BYTE* optional
    cbRandoms : UInt32,   # DWORD
    pbContextValue : UInt8*,   # BYTE* optional
    cbContextValue : UInt16,   # WORD
    pbOutput : UInt8*,   # BYTE* out
    cbOutput : UInt32,   # DWORD
    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 SslExportKeyingMaterialNative = Int32 Function(UintPtr, UintPtr, Pointer<Utf8>, Pointer<Uint8>, Uint32, Pointer<Uint8>, Uint16, Pointer<Uint8>, Uint32, Uint32);
typedef SslExportKeyingMaterialDart = int Function(int, int, Pointer<Utf8>, Pointer<Uint8>, int, Pointer<Uint8>, int, Pointer<Uint8>, int, int);
final SslExportKeyingMaterial = DynamicLibrary.open('ncrypt.dll')
    .lookupFunction<SslExportKeyingMaterialNative, SslExportKeyingMaterialDart>('SslExportKeyingMaterial');
// hSslProvider : NCRYPT_PROV_HANDLE -> UintPtr
// hMasterKey : NCRYPT_KEY_HANDLE -> UintPtr
// sLabel : LPSTR -> Pointer<Utf8>
// pbRandoms : BYTE* optional -> Pointer<Uint8>
// cbRandoms : DWORD -> Uint32
// pbContextValue : BYTE* optional -> Pointer<Uint8>
// cbContextValue : WORD -> Uint16
// pbOutput : BYTE* out -> Pointer<Uint8>
// cbOutput : DWORD -> Uint32
// dwFlags : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function SslExportKeyingMaterial(
  hSslProvider: NativeUInt;   // NCRYPT_PROV_HANDLE
  hMasterKey: NativeUInt;   // NCRYPT_KEY_HANDLE
  sLabel: PAnsiChar;   // LPSTR
  pbRandoms: Pointer;   // BYTE* optional
  cbRandoms: DWORD;   // DWORD
  pbContextValue: Pointer;   // BYTE* optional
  cbContextValue: Word;   // WORD
  pbOutput: Pointer;   // BYTE* out
  cbOutput: DWORD;   // DWORD
  dwFlags: DWORD   // DWORD
): Integer; stdcall;
  external 'ncrypt.dll' name 'SslExportKeyingMaterial';

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

foreign import stdcall safe "SslExportKeyingMaterial"
  c_SslExportKeyingMaterial :: CUIntPtr -> CUIntPtr -> CString -> Ptr Word8 -> Word32 -> Ptr Word8 -> Word16 -> Ptr Word8 -> Word32 -> Word32 -> IO Int32
-- hSslProvider : NCRYPT_PROV_HANDLE -> CUIntPtr
-- hMasterKey : NCRYPT_KEY_HANDLE -> CUIntPtr
-- sLabel : LPSTR -> CString
-- pbRandoms : BYTE* optional -> Ptr Word8
-- cbRandoms : DWORD -> Word32
-- pbContextValue : BYTE* optional -> Ptr Word8
-- cbContextValue : WORD -> Word16
-- pbOutput : BYTE* out -> Ptr Word8
-- cbOutput : DWORD -> 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 sslexportkeyingmaterial =
  foreign "SslExportKeyingMaterial"
    (size_t @-> size_t @-> string @-> (ptr uint8_t) @-> uint32_t @-> (ptr uint8_t) @-> uint16_t @-> (ptr uint8_t) @-> uint32_t @-> uint32_t @-> returning int32_t)
(* hSslProvider : NCRYPT_PROV_HANDLE -> size_t *)
(* hMasterKey : NCRYPT_KEY_HANDLE -> size_t *)
(* sLabel : LPSTR -> string *)
(* pbRandoms : BYTE* optional -> (ptr uint8_t) *)
(* cbRandoms : DWORD -> uint32_t *)
(* pbContextValue : BYTE* optional -> (ptr uint8_t) *)
(* cbContextValue : WORD -> uint16_t *)
(* pbOutput : BYTE* out -> (ptr uint8_t) *)
(* cbOutput : DWORD -> 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 ("SslExportKeyingMaterial" ssl-export-keying-material :convention :stdcall) :int32
  (h-ssl-provider :uint64)   ; NCRYPT_PROV_HANDLE
  (h-master-key :uint64)   ; NCRYPT_KEY_HANDLE
  (s-label :string)   ; LPSTR
  (pb-randoms :pointer)   ; BYTE* optional
  (cb-randoms :uint32)   ; DWORD
  (pb-context-value :pointer)   ; BYTE* optional
  (cb-context-value :uint16)   ; WORD
  (pb-output :pointer)   ; BYTE* out
  (cb-output :uint32)   ; DWORD
  (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 $SslExportKeyingMaterial = Win32::API::More->new('ncrypt',
    'int SslExportKeyingMaterial(WPARAM hSslProvider, WPARAM hMasterKey, LPCSTR sLabel, LPVOID pbRandoms, DWORD cbRandoms, LPVOID pbContextValue, WORD cbContextValue, LPVOID pbOutput, DWORD cbOutput, DWORD dwFlags)');
# my $ret = $SslExportKeyingMaterial->Call($hSslProvider, $hMasterKey, $sLabel, $pbRandoms, $cbRandoms, $pbContextValue, $cbContextValue, $pbOutput, $cbOutput, $dwFlags);
# hSslProvider : NCRYPT_PROV_HANDLE -> WPARAM
# hMasterKey : NCRYPT_KEY_HANDLE -> WPARAM
# sLabel : LPSTR -> LPCSTR
# pbRandoms : BYTE* optional -> LPVOID
# cbRandoms : DWORD -> DWORD
# pbContextValue : BYTE* optional -> LPVOID
# cbContextValue : WORD -> WORD
# pbOutput : BYTE* out -> LPVOID
# cbOutput : DWORD -> DWORD
# 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。