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GenerateDerivedKey

関数
ラベルとノンスから派生鍵を生成する。
DLLinfocardapi.dll呼出規約winapi

シグネチャ

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

HRESULT GenerateDerivedKey(
    INFORMATIONCARD_CRYPTO_HANDLE* hCrypto,
    DWORD cbLabel,
    BYTE* pLabel,
    DWORD cbNonce,
    BYTE* pNonce,
    DWORD derivedKeyLength,
    DWORD offset,
    LPCWSTR algId,
    DWORD* pcbKey,
    BYTE** ppKey
);

パラメーター

名前型方向説明
hCryptoINFORMATIONCARD_CRYPTO_HANDLE*in鍵導出の基となる暗号化操作ハンドルINFORMATIONCARD_CRYPTO_HANDLE。
cbLabelDWORDinpLabelが指すラベルのバイト数。
pLabelBYTE*in導出に使うラベル(コンテキスト)データへのポインタ。
cbNonceDWORDinpNonceが指すナンスのバイト数。
pNonceBYTE*in導出に使うナンスデータへのポインタ。
derivedKeyLengthDWORDin導出する鍵のビット長。
offsetDWORDin導出鍵を取り出すビットオフセット。
algIdLPCWSTRin導出アルゴリズムを示す識別子文字列。
pcbKeyDWORD*out出力された導出鍵のバイト数を受け取る出力先。
ppKeyBYTE**out導出された鍵を格納したバッファへのポインタを受け取る出力先。

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT GenerateDerivedKey(
    INFORMATIONCARD_CRYPTO_HANDLE* hCrypto,
    DWORD cbLabel,
    BYTE* pLabel,
    DWORD cbNonce,
    BYTE* pNonce,
    DWORD derivedKeyLength,
    DWORD offset,
    LPCWSTR algId,
    DWORD* pcbKey,
    BYTE** ppKey
);
[DllImport("infocardapi.dll", ExactSpelling = true)]
static extern int GenerateDerivedKey(
    IntPtr hCrypto,   // INFORMATIONCARD_CRYPTO_HANDLE*
    uint cbLabel,   // DWORD
    IntPtr pLabel,   // BYTE*
    uint cbNonce,   // DWORD
    IntPtr pNonce,   // BYTE*
    uint derivedKeyLength,   // DWORD
    uint offset,   // DWORD
    [MarshalAs(UnmanagedType.LPWStr)] string algId,   // LPCWSTR
    out uint pcbKey,   // DWORD* out
    IntPtr ppKey   // BYTE** out
);
<DllImport("infocardapi.dll", ExactSpelling:=True)>
Public Shared Function GenerateDerivedKey(
    hCrypto As IntPtr,   ' INFORMATIONCARD_CRYPTO_HANDLE*
    cbLabel As UInteger,   ' DWORD
    pLabel As IntPtr,   ' BYTE*
    cbNonce As UInteger,   ' DWORD
    pNonce As IntPtr,   ' BYTE*
    derivedKeyLength As UInteger,   ' DWORD
    offset As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPWStr)> algId As String,   ' LPCWSTR
    <Out> ByRef pcbKey As UInteger,   ' DWORD* out
    ppKey As IntPtr   ' BYTE** out
) As Integer
End Function
' hCrypto : INFORMATIONCARD_CRYPTO_HANDLE*
' cbLabel : DWORD
' pLabel : BYTE*
' cbNonce : DWORD
' pNonce : BYTE*
' derivedKeyLength : DWORD
' offset : DWORD
' algId : LPCWSTR
' pcbKey : DWORD* out
' ppKey : BYTE** out
Declare PtrSafe Function GenerateDerivedKey Lib "infocardapi" ( _
    ByVal hCrypto As LongPtr, _
    ByVal cbLabel As Long, _
    ByVal pLabel As LongPtr, _
    ByVal cbNonce As Long, _
    ByVal pNonce As LongPtr, _
    ByVal derivedKeyLength As Long, _
    ByVal offset As Long, _
    ByVal algId As LongPtr, _
    ByRef pcbKey As Long, _
    ByVal ppKey As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。
import ctypes
from ctypes import wintypes

GenerateDerivedKey = ctypes.windll.infocardapi.GenerateDerivedKey
GenerateDerivedKey.restype = ctypes.c_int
GenerateDerivedKey.argtypes = [
    ctypes.c_void_p,  # hCrypto : INFORMATIONCARD_CRYPTO_HANDLE*
    wintypes.DWORD,  # cbLabel : DWORD
    ctypes.POINTER(ctypes.c_ubyte),  # pLabel : BYTE*
    wintypes.DWORD,  # cbNonce : DWORD
    ctypes.POINTER(ctypes.c_ubyte),  # pNonce : BYTE*
    wintypes.DWORD,  # derivedKeyLength : DWORD
    wintypes.DWORD,  # offset : DWORD
    wintypes.LPCWSTR,  # algId : LPCWSTR
    ctypes.POINTER(wintypes.DWORD),  # pcbKey : DWORD* out
    ctypes.c_void_p,  # ppKey : BYTE** out
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('infocardapi.dll')
GenerateDerivedKey = Fiddle::Function.new(
  lib['GenerateDerivedKey'],
  [
    Fiddle::TYPE_VOIDP,  # hCrypto : INFORMATIONCARD_CRYPTO_HANDLE*
    -Fiddle::TYPE_INT,  # cbLabel : DWORD
    Fiddle::TYPE_VOIDP,  # pLabel : BYTE*
    -Fiddle::TYPE_INT,  # cbNonce : DWORD
    Fiddle::TYPE_VOIDP,  # pNonce : BYTE*
    -Fiddle::TYPE_INT,  # derivedKeyLength : DWORD
    -Fiddle::TYPE_INT,  # offset : DWORD
    Fiddle::TYPE_VOIDP,  # algId : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pcbKey : DWORD* out
    Fiddle::TYPE_VOIDP,  # ppKey : BYTE** out
  ],
  Fiddle::TYPE_INT)
#[link(name = "infocardapi")]
extern "system" {
    fn GenerateDerivedKey(
        hCrypto: *mut INFORMATIONCARD_CRYPTO_HANDLE,  // INFORMATIONCARD_CRYPTO_HANDLE*
        cbLabel: u32,  // DWORD
        pLabel: *mut u8,  // BYTE*
        cbNonce: u32,  // DWORD
        pNonce: *mut u8,  // BYTE*
        derivedKeyLength: u32,  // DWORD
        offset: u32,  // DWORD
        algId: *const u16,  // LPCWSTR
        pcbKey: *mut u32,  // DWORD* out
        ppKey: *mut *mut u8  // BYTE** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("infocardapi.dll")]
public static extern int GenerateDerivedKey(IntPtr hCrypto, uint cbLabel, IntPtr pLabel, uint cbNonce, IntPtr pNonce, uint derivedKeyLength, uint offset, [MarshalAs(UnmanagedType.LPWStr)] string algId, out uint pcbKey, IntPtr ppKey);
"@
$api = Add-Type -MemberDefinition $sig -Name 'infocardapi_GenerateDerivedKey' -Namespace Win32 -PassThru
# $api::GenerateDerivedKey(hCrypto, cbLabel, pLabel, cbNonce, pNonce, derivedKeyLength, offset, algId, pcbKey, ppKey)
#uselib "infocardapi.dll"
#func global GenerateDerivedKey "GenerateDerivedKey" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; GenerateDerivedKey varptr(hCrypto), cbLabel, varptr(pLabel), cbNonce, varptr(pNonce), derivedKeyLength, offset, algId, varptr(pcbKey), varptr(ppKey)   ; 戻り値は stat
; hCrypto : INFORMATIONCARD_CRYPTO_HANDLE* -> "sptr"
; cbLabel : DWORD -> "sptr"
; pLabel : BYTE* -> "sptr"
; cbNonce : DWORD -> "sptr"
; pNonce : BYTE* -> "sptr"
; derivedKeyLength : DWORD -> "sptr"
; offset : DWORD -> "sptr"
; algId : LPCWSTR -> "sptr"
; pcbKey : DWORD* out -> "sptr"
; ppKey : BYTE** out -> "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 "infocardapi.dll"
#cfunc global GenerateDerivedKey "GenerateDerivedKey" var, int, var, int, var, int, int, wstr, var, var
; res = GenerateDerivedKey(hCrypto, cbLabel, pLabel, cbNonce, pNonce, derivedKeyLength, offset, algId, pcbKey, ppKey)
; hCrypto : INFORMATIONCARD_CRYPTO_HANDLE* -> "var"
; cbLabel : DWORD -> "int"
; pLabel : BYTE* -> "var"
; cbNonce : DWORD -> "int"
; pNonce : BYTE* -> "var"
; derivedKeyLength : DWORD -> "int"
; offset : DWORD -> "int"
; algId : LPCWSTR -> "wstr"
; pcbKey : DWORD* out -> "var"
; ppKey : BYTE** out -> "var"
; ※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。
出力引数: 
; HRESULT GenerateDerivedKey(INFORMATIONCARD_CRYPTO_HANDLE* hCrypto, DWORD cbLabel, BYTE* pLabel, DWORD cbNonce, BYTE* pNonce, DWORD derivedKeyLength, DWORD offset, LPCWSTR algId, DWORD* pcbKey, BYTE** ppKey)
#uselib "infocardapi.dll"
#cfunc global GenerateDerivedKey "GenerateDerivedKey" var, int, var, int, var, int, int, wstr, var, var
; res = GenerateDerivedKey(hCrypto, cbLabel, pLabel, cbNonce, pNonce, derivedKeyLength, offset, algId, pcbKey, ppKey)
; hCrypto : INFORMATIONCARD_CRYPTO_HANDLE* -> "var"
; cbLabel : DWORD -> "int"
; pLabel : BYTE* -> "var"
; cbNonce : DWORD -> "int"
; pNonce : BYTE* -> "var"
; derivedKeyLength : DWORD -> "int"
; offset : DWORD -> "int"
; algId : LPCWSTR -> "wstr"
; pcbKey : DWORD* out -> "var"
; ppKey : BYTE** out -> "var"
; ※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 (
	infocardapi = windows.NewLazySystemDLL("infocardapi.dll")
	procGenerateDerivedKey = infocardapi.NewProc("GenerateDerivedKey")
)

// hCrypto (INFORMATIONCARD_CRYPTO_HANDLE*), cbLabel (DWORD), pLabel (BYTE*), cbNonce (DWORD), pNonce (BYTE*), derivedKeyLength (DWORD), offset (DWORD), algId (LPCWSTR), pcbKey (DWORD* out), ppKey (BYTE** out)
r1, _, err := procGenerateDerivedKey.Call(
	uintptr(hCrypto),
	uintptr(cbLabel),
	uintptr(pLabel),
	uintptr(cbNonce),
	uintptr(pNonce),
	uintptr(derivedKeyLength),
	uintptr(offset),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(algId))),
	uintptr(pcbKey),
	uintptr(ppKey),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT
function GenerateDerivedKey(
  hCrypto: Pointer;   // INFORMATIONCARD_CRYPTO_HANDLE*
  cbLabel: DWORD;   // DWORD
  pLabel: Pointer;   // BYTE*
  cbNonce: DWORD;   // DWORD
  pNonce: Pointer;   // BYTE*
  derivedKeyLength: DWORD;   // DWORD
  offset: DWORD;   // DWORD
  algId: PWideChar;   // LPCWSTR
  pcbKey: Pointer;   // DWORD* out
  ppKey: Pointer   // BYTE** out
): Integer; stdcall;
  external 'infocardapi.dll' name 'GenerateDerivedKey';
result := DllCall("infocardapi\GenerateDerivedKey"
    , "Ptr", hCrypto   ; INFORMATIONCARD_CRYPTO_HANDLE*
    , "UInt", cbLabel   ; DWORD
    , "Ptr", pLabel   ; BYTE*
    , "UInt", cbNonce   ; DWORD
    , "Ptr", pNonce   ; BYTE*
    , "UInt", derivedKeyLength   ; DWORD
    , "UInt", offset   ; DWORD
    , "WStr", algId   ; LPCWSTR
    , "Ptr", pcbKey   ; DWORD* out
    , "Ptr", ppKey   ; BYTE** out
    , "Int")   ; return: HRESULT
●GenerateDerivedKey(hCrypto, cbLabel, pLabel, cbNonce, pNonce, derivedKeyLength, offset, algId, pcbKey, ppKey) = DLL("infocardapi.dll", "int GenerateDerivedKey(void*, dword, void*, dword, void*, dword, dword, char*, void*, void*)")
# 呼び出し: GenerateDerivedKey(hCrypto, cbLabel, pLabel, cbNonce, pNonce, derivedKeyLength, offset, algId, pcbKey, ppKey)
# hCrypto : INFORMATIONCARD_CRYPTO_HANDLE* -> "void*"
# cbLabel : DWORD -> "dword"
# pLabel : BYTE* -> "void*"
# cbNonce : DWORD -> "dword"
# pNonce : BYTE* -> "void*"
# derivedKeyLength : DWORD -> "dword"
# offset : DWORD -> "dword"
# algId : LPCWSTR -> "char*"
# pcbKey : DWORD* out -> "void*"
# ppKey : BYTE** out -> "void*"
# 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 "infocardapi" fn GenerateDerivedKey(
    hCrypto: [*c]INFORMATIONCARD_CRYPTO_HANDLE, // INFORMATIONCARD_CRYPTO_HANDLE*
    cbLabel: u32, // DWORD
    pLabel: [*c]u8, // BYTE*
    cbNonce: u32, // DWORD
    pNonce: [*c]u8, // BYTE*
    derivedKeyLength: u32, // DWORD
    offset: u32, // DWORD
    algId: [*c]const u16, // LPCWSTR
    pcbKey: [*c]u32, // DWORD* out
    ppKey: [*c][*c]u8 // BYTE** out
) callconv(std.os.windows.WINAPI) i32;
proc GenerateDerivedKey(
    hCrypto: ptr INFORMATIONCARD_CRYPTO_HANDLE,  # INFORMATIONCARD_CRYPTO_HANDLE*
    cbLabel: uint32,  # DWORD
    pLabel: ptr uint8,  # BYTE*
    cbNonce: uint32,  # DWORD
    pNonce: ptr uint8,  # BYTE*
    derivedKeyLength: uint32,  # DWORD
    offset: uint32,  # DWORD
    algId: WideCString,  # LPCWSTR
    pcbKey: ptr uint32,  # DWORD* out
    ppKey: ptr uint8  # BYTE** out
): int32 {.importc: "GenerateDerivedKey", stdcall, dynlib: "infocardapi.dll".}
pragma(lib, "infocardapi");
extern(Windows)
int GenerateDerivedKey(
    INFORMATIONCARD_CRYPTO_HANDLE* hCrypto,   // INFORMATIONCARD_CRYPTO_HANDLE*
    uint cbLabel,   // DWORD
    ubyte* pLabel,   // BYTE*
    uint cbNonce,   // DWORD
    ubyte* pNonce,   // BYTE*
    uint derivedKeyLength,   // DWORD
    uint offset,   // DWORD
    const(wchar)* algId,   // LPCWSTR
    uint* pcbKey,   // DWORD* out
    ubyte** ppKey   // BYTE** out
);
ccall((:GenerateDerivedKey, "infocardapi.dll"), stdcall, Int32,
      (Ptr{INFORMATIONCARD_CRYPTO_HANDLE}, UInt32, Ptr{UInt8}, UInt32, Ptr{UInt8}, UInt32, UInt32, Cwstring, Ptr{UInt32}, Ptr{UInt8}),
      hCrypto, cbLabel, pLabel, cbNonce, pNonce, derivedKeyLength, offset, algId, pcbKey, ppKey)
# hCrypto : INFORMATIONCARD_CRYPTO_HANDLE* -> Ptr{INFORMATIONCARD_CRYPTO_HANDLE}
# cbLabel : DWORD -> UInt32
# pLabel : BYTE* -> Ptr{UInt8}
# cbNonce : DWORD -> UInt32
# pNonce : BYTE* -> Ptr{UInt8}
# derivedKeyLength : DWORD -> UInt32
# offset : DWORD -> UInt32
# algId : LPCWSTR -> Cwstring
# pcbKey : DWORD* out -> Ptr{UInt32}
# ppKey : BYTE** out -> Ptr{UInt8}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
local ffi = require("ffi")
ffi.cdef[[
int32_t GenerateDerivedKey(
    void* hCrypto,
    uint32_t cbLabel,
    uint8_t* pLabel,
    uint32_t cbNonce,
    uint8_t* pNonce,
    uint32_t derivedKeyLength,
    uint32_t offset,
    const uint16_t* algId,
    uint32_t* pcbKey,
    uint8_t** ppKey);
]]
local infocardapi = ffi.load("infocardapi")
-- infocardapi.GenerateDerivedKey(hCrypto, cbLabel, pLabel, cbNonce, pNonce, derivedKeyLength, offset, algId, pcbKey, ppKey)
-- hCrypto : INFORMATIONCARD_CRYPTO_HANDLE*
-- cbLabel : DWORD
-- pLabel : BYTE*
-- cbNonce : DWORD
-- pNonce : BYTE*
-- derivedKeyLength : DWORD
-- offset : DWORD
-- algId : LPCWSTR
-- pcbKey : DWORD* out
-- ppKey : BYTE** out
-- 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('infocardapi.dll');
const GenerateDerivedKey = lib.func('__stdcall', 'GenerateDerivedKey', 'int32_t', ['void *', 'uint32_t', 'uint8_t *', 'uint32_t', 'uint8_t *', 'uint32_t', 'uint32_t', 'str16', 'uint32_t *', 'uint8_t *']);
// GenerateDerivedKey(hCrypto, cbLabel, pLabel, cbNonce, pNonce, derivedKeyLength, offset, algId, pcbKey, ppKey)
// hCrypto : INFORMATIONCARD_CRYPTO_HANDLE* -> 'void *'
// cbLabel : DWORD -> 'uint32_t'
// pLabel : BYTE* -> 'uint8_t *'
// cbNonce : DWORD -> 'uint32_t'
// pNonce : BYTE* -> 'uint8_t *'
// derivedKeyLength : DWORD -> 'uint32_t'
// offset : DWORD -> 'uint32_t'
// algId : LPCWSTR -> 'str16'
// pcbKey : DWORD* out -> 'uint32_t *'
// ppKey : BYTE** out -> 'uint8_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("infocardapi.dll", {
  GenerateDerivedKey: { parameters: ["pointer", "u32", "pointer", "u32", "pointer", "u32", "u32", "buffer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.GenerateDerivedKey(hCrypto, cbLabel, pLabel, cbNonce, pNonce, derivedKeyLength, offset, algId, pcbKey, ppKey)
// hCrypto : INFORMATIONCARD_CRYPTO_HANDLE* -> "pointer"
// cbLabel : DWORD -> "u32"
// pLabel : BYTE* -> "pointer"
// cbNonce : DWORD -> "u32"
// pNonce : BYTE* -> "pointer"
// derivedKeyLength : DWORD -> "u32"
// offset : DWORD -> "u32"
// algId : LPCWSTR -> "buffer"
// pcbKey : DWORD* out -> "pointer"
// ppKey : BYTE** out -> "pointer"
// 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 GenerateDerivedKey(
    void* hCrypto,
    uint32_t cbLabel,
    uint8_t* pLabel,
    uint32_t cbNonce,
    uint8_t* pNonce,
    uint32_t derivedKeyLength,
    uint32_t offset,
    const uint16_t* algId,
    uint32_t* pcbKey,
    uint8_t** ppKey);
C, "infocardapi.dll");
// $ffi->GenerateDerivedKey(hCrypto, cbLabel, pLabel, cbNonce, pNonce, derivedKeyLength, offset, algId, pcbKey, ppKey);
// hCrypto : INFORMATIONCARD_CRYPTO_HANDLE*
// cbLabel : DWORD
// pLabel : BYTE*
// cbNonce : DWORD
// pNonce : BYTE*
// derivedKeyLength : DWORD
// offset : DWORD
// algId : LPCWSTR
// pcbKey : DWORD* out
// ppKey : BYTE** out
// 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 Infocardapi extends StdCallLibrary {
    Infocardapi INSTANCE = Native.load("infocardapi", Infocardapi.class);
    int GenerateDerivedKey(
        Pointer hCrypto,   // INFORMATIONCARD_CRYPTO_HANDLE*
        int cbLabel,   // DWORD
        byte[] pLabel,   // BYTE*
        int cbNonce,   // DWORD
        byte[] pNonce,   // BYTE*
        int derivedKeyLength,   // DWORD
        int offset,   // DWORD
        WString algId,   // LPCWSTR
        IntByReference pcbKey,   // DWORD* out
        Pointer ppKey   // BYTE** out
    );
}
@[Link("infocardapi")]
lib Libinfocardapi
  fun GenerateDerivedKey = GenerateDerivedKey(
    hCrypto : INFORMATIONCARD_CRYPTO_HANDLE*,   # INFORMATIONCARD_CRYPTO_HANDLE*
    cbLabel : UInt32,   # DWORD
    pLabel : UInt8*,   # BYTE*
    cbNonce : UInt32,   # DWORD
    pNonce : UInt8*,   # BYTE*
    derivedKeyLength : UInt32,   # DWORD
    offset : UInt32,   # DWORD
    algId : UInt16*,   # LPCWSTR
    pcbKey : UInt32*,   # DWORD* out
    ppKey : UInt8**   # BYTE** out
  ) : 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 GenerateDerivedKeyNative = Int32 Function(Pointer<Void>, Uint32, Pointer<Uint8>, Uint32, Pointer<Uint8>, Uint32, Uint32, Pointer<Utf16>, Pointer<Uint32>, Pointer<Uint8>);
typedef GenerateDerivedKeyDart = int Function(Pointer<Void>, int, Pointer<Uint8>, int, Pointer<Uint8>, int, int, Pointer<Utf16>, Pointer<Uint32>, Pointer<Uint8>);
final GenerateDerivedKey = DynamicLibrary.open('infocardapi.dll')
    .lookupFunction<GenerateDerivedKeyNative, GenerateDerivedKeyDart>('GenerateDerivedKey');
// hCrypto : INFORMATIONCARD_CRYPTO_HANDLE* -> Pointer<Void>
// cbLabel : DWORD -> Uint32
// pLabel : BYTE* -> Pointer<Uint8>
// cbNonce : DWORD -> Uint32
// pNonce : BYTE* -> Pointer<Uint8>
// derivedKeyLength : DWORD -> Uint32
// offset : DWORD -> Uint32
// algId : LPCWSTR -> Pointer<Utf16>
// pcbKey : DWORD* out -> Pointer<Uint32>
// ppKey : BYTE** out -> Pointer<Uint8>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。
{$mode objfpc}{$H+}
function GenerateDerivedKey(
  hCrypto: Pointer;   // INFORMATIONCARD_CRYPTO_HANDLE*
  cbLabel: DWORD;   // DWORD
  pLabel: Pointer;   // BYTE*
  cbNonce: DWORD;   // DWORD
  pNonce: Pointer;   // BYTE*
  derivedKeyLength: DWORD;   // DWORD
  offset: DWORD;   // DWORD
  algId: PWideChar;   // LPCWSTR
  pcbKey: Pointer;   // DWORD* out
  ppKey: Pointer   // BYTE** out
): Integer; stdcall;
  external 'infocardapi.dll' name 'GenerateDerivedKey';
import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "GenerateDerivedKey"
  c_GenerateDerivedKey :: Ptr () -> Word32 -> Ptr Word8 -> Word32 -> Ptr Word8 -> Word32 -> Word32 -> CWString -> Ptr Word32 -> Ptr Word8 -> IO Int32
-- hCrypto : INFORMATIONCARD_CRYPTO_HANDLE* -> Ptr ()
-- cbLabel : DWORD -> Word32
-- pLabel : BYTE* -> Ptr Word8
-- cbNonce : DWORD -> Word32
-- pNonce : BYTE* -> Ptr Word8
-- derivedKeyLength : DWORD -> Word32
-- offset : DWORD -> Word32
-- algId : LPCWSTR -> CWString
-- pcbKey : DWORD* out -> Ptr Word32
-- ppKey : BYTE** out -> Ptr Word8
-- 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 generatederivedkey =
  foreign "GenerateDerivedKey"
    ((ptr void) @-> uint32_t @-> (ptr uint8_t) @-> uint32_t @-> (ptr uint8_t) @-> uint32_t @-> uint32_t @-> (ptr uint16_t) @-> (ptr uint32_t) @-> (ptr uint8_t) @-> returning int32_t)
(* hCrypto : INFORMATIONCARD_CRYPTO_HANDLE* -> (ptr void) *)
(* cbLabel : DWORD -> uint32_t *)
(* pLabel : BYTE* -> (ptr uint8_t) *)
(* cbNonce : DWORD -> uint32_t *)
(* pNonce : BYTE* -> (ptr uint8_t) *)
(* derivedKeyLength : DWORD -> uint32_t *)
(* offset : DWORD -> uint32_t *)
(* algId : LPCWSTR -> (ptr uint16_t) *)
(* pcbKey : DWORD* out -> (ptr uint32_t) *)
(* ppKey : BYTE** out -> (ptr uint8_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 infocardapi (t "infocardapi.dll"))
(cffi:use-foreign-library infocardapi)

(cffi:defcfun ("GenerateDerivedKey" generate-derived-key :convention :stdcall) :int32
  (h-crypto :pointer)   ; INFORMATIONCARD_CRYPTO_HANDLE*
  (cb-label :uint32)   ; DWORD
  (p-label :pointer)   ; BYTE*
  (cb-nonce :uint32)   ; DWORD
  (p-nonce :pointer)   ; BYTE*
  (derived-key-length :uint32)   ; DWORD
  (offset :uint32)   ; DWORD
  (alg-id (:string :encoding :utf-16le))   ; LPCWSTR
  (pcb-key :pointer)   ; DWORD* out
  (pp-key :pointer))   ; BYTE** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。
use Win32::API;
my $GenerateDerivedKey = Win32::API::More->new('infocardapi',
    'int GenerateDerivedKey(LPVOID hCrypto, DWORD cbLabel, LPVOID pLabel, DWORD cbNonce, LPVOID pNonce, DWORD derivedKeyLength, DWORD offset, LPCWSTR algId, LPVOID pcbKey, LPVOID ppKey)');
# my $ret = $GenerateDerivedKey->Call($hCrypto, $cbLabel, $pLabel, $cbNonce, $pNonce, $derivedKeyLength, $offset, $algId, $pcbKey, $ppKey);
# hCrypto : INFORMATIONCARD_CRYPTO_HANDLE* -> LPVOID
# cbLabel : DWORD -> DWORD
# pLabel : BYTE* -> LPVOID
# cbNonce : DWORD -> DWORD
# pNonce : BYTE* -> LPVOID
# derivedKeyLength : DWORD -> DWORD
# offset : DWORD -> DWORD
# algId : LPCWSTR -> LPCWSTR
# pcbKey : DWORD* out -> LPVOID
# ppKey : BYTE** out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。

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