ホーム › Security.Cryptography › CryptStringToBinaryW

CryptStringToBinaryW

関数

Base64などのUnicode文字列をバイナリデータに変換する。

DLLCRYPT32.dll文字セットUnicode (-W)呼出規約winapiSetLastErrorあり対応OSWindows XP 以降

シグネチャ

// CRYPT32.dll  (Unicode / -W)
#include <windows.h>

BOOL CryptStringToBinaryW(
    LPCWSTR pszString,
    DWORD cchString,
    CRYPT_STRING dwFlags,
    BYTE* pbBinary,   // optional
    DWORD* pcbBinary,
    DWORD* pdwSkip,   // optional
    DWORD* pdwFlags   // optional
);

パラメーター

名前	型	方向
pszString	LPCWSTR	in
cchString	DWORD	in
dwFlags	CRYPT_STRING	in
pbBinary	BYTE*	outoptional
pcbBinary	DWORD*	inout
pdwSkip	DWORD*	outoptional
pdwFlags	DWORD*	outoptional

戻り値の型: BOOL

各言語での呼び出し定義

// CRYPT32.dll  (Unicode / -W)
#include <windows.h>

BOOL CryptStringToBinaryW(
    LPCWSTR pszString,
    DWORD cchString,
    CRYPT_STRING dwFlags,
    BYTE* pbBinary,   // optional
    DWORD* pcbBinary,
    DWORD* pdwSkip,   // optional
    DWORD* pdwFlags   // optional
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("CRYPT32.dll", CharSet = CharSet.Unicode, SetLastError = true, ExactSpelling = true)]
static extern bool CryptStringToBinaryW(
    [MarshalAs(UnmanagedType.LPWStr)] string pszString,   // LPCWSTR
    uint cchString,   // DWORD
    uint dwFlags,   // CRYPT_STRING
    IntPtr pbBinary,   // BYTE* optional, out
    ref uint pcbBinary,   // DWORD* in/out
    IntPtr pdwSkip,   // DWORD* optional, out
    IntPtr pdwFlags   // DWORD* optional, out
);

<DllImport("CRYPT32.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CryptStringToBinaryW(
    <MarshalAs(UnmanagedType.LPWStr)> pszString As String,   ' LPCWSTR
    cchString As UInteger,   ' DWORD
    dwFlags As UInteger,   ' CRYPT_STRING
    pbBinary As IntPtr,   ' BYTE* optional, out
    ByRef pcbBinary As UInteger,   ' DWORD* in/out
    pdwSkip As IntPtr,   ' DWORD* optional, out
    pdwFlags As IntPtr   ' DWORD* optional, out
) As Boolean
End Function

' pszString : LPCWSTR
' cchString : DWORD
' dwFlags : CRYPT_STRING
' pbBinary : BYTE* optional, out
' pcbBinary : DWORD* in/out
' pdwSkip : DWORD* optional, out
' pdwFlags : DWORD* optional, out
Declare PtrSafe Function CryptStringToBinaryW Lib "crypt32" ( _
    ByVal pszString As LongPtr, _
    ByVal cchString As Long, _
    ByVal dwFlags As Long, _
    ByVal pbBinary As LongPtr, _
    ByRef pcbBinary As Long, _
    ByVal pdwSkip As LongPtr, _
    ByVal pdwFlags As LongPtr) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

CryptStringToBinaryW = ctypes.windll.crypt32.CryptStringToBinaryW
CryptStringToBinaryW.restype = wintypes.BOOL
CryptStringToBinaryW.argtypes = [
    wintypes.LPCWSTR,  # pszString : LPCWSTR
    wintypes.DWORD,  # cchString : DWORD
    wintypes.DWORD,  # dwFlags : CRYPT_STRING
    ctypes.POINTER(ctypes.c_ubyte),  # pbBinary : BYTE* optional, out
    ctypes.POINTER(wintypes.DWORD),  # pcbBinary : DWORD* in/out
    ctypes.POINTER(wintypes.DWORD),  # pdwSkip : DWORD* optional, out
    ctypes.POINTER(wintypes.DWORD),  # pdwFlags : DWORD* optional, out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CRYPT32.dll')
CryptStringToBinaryW = Fiddle::Function.new(
  lib['CryptStringToBinaryW'],
  [
    Fiddle::TYPE_VOIDP,  # pszString : LPCWSTR
    -Fiddle::TYPE_INT,  # cchString : DWORD
    -Fiddle::TYPE_INT,  # dwFlags : CRYPT_STRING
    Fiddle::TYPE_VOIDP,  # pbBinary : BYTE* optional, out
    Fiddle::TYPE_VOIDP,  # pcbBinary : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # pdwSkip : DWORD* optional, out
    Fiddle::TYPE_VOIDP,  # pdwFlags : DWORD* optional, out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "crypt32")]
extern "system" {
    fn CryptStringToBinaryW(
        pszString: *const u16,  // LPCWSTR
        cchString: u32,  // DWORD
        dwFlags: u32,  // CRYPT_STRING
        pbBinary: *mut u8,  // BYTE* optional, out
        pcbBinary: *mut u32,  // DWORD* in/out
        pdwSkip: *mut u32,  // DWORD* optional, out
        pdwFlags: *mut u32  // DWORD* optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("CRYPT32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern bool CryptStringToBinaryW([MarshalAs(UnmanagedType.LPWStr)] string pszString, uint cchString, uint dwFlags, IntPtr pbBinary, ref uint pcbBinary, IntPtr pdwSkip, IntPtr pdwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CRYPT32_CryptStringToBinaryW' -Namespace Win32 -PassThru
# $api::CryptStringToBinaryW(pszString, cchString, dwFlags, pbBinary, pcbBinary, pdwSkip, pdwFlags)

#uselib "CRYPT32.dll"
#func global CryptStringToBinaryW "CryptStringToBinaryW" wptr, wptr, wptr, wptr, wptr, wptr, wptr
; CryptStringToBinaryW pszString, cchString, dwFlags, varptr(pbBinary), varptr(pcbBinary), varptr(pdwSkip), varptr(pdwFlags)   ; 戻り値は stat
; pszString : LPCWSTR -> "wptr"
; cchString : DWORD -> "wptr"
; dwFlags : CRYPT_STRING -> "wptr"
; pbBinary : BYTE* optional, out -> "wptr"
; pcbBinary : DWORD* in/out -> "wptr"
; pdwSkip : DWORD* optional, out -> "wptr"
; pdwFlags : DWORD* optional, out -> "wptr"
; ※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 "CRYPT32.dll"
#cfunc global CryptStringToBinaryW "CryptStringToBinaryW" wstr, int, int, var, var, var, var
; res = CryptStringToBinaryW(pszString, cchString, dwFlags, pbBinary, pcbBinary, pdwSkip, pdwFlags)
; pszString : LPCWSTR -> "wstr"
; cchString : DWORD -> "int"
; dwFlags : CRYPT_STRING -> "int"
; pbBinary : BYTE* optional, out -> "var"
; pcbBinary : DWORD* in/out -> "var"
; pdwSkip : DWORD* optional, out -> "var"
; pdwFlags : DWORD* optional, 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。#uselib "CRYPT32.dll"
#cfunc global CryptStringToBinaryW "CryptStringToBinaryW" wstr, int, int, sptr, sptr, sptr, sptr
; res = CryptStringToBinaryW(pszString, cchString, dwFlags, varptr(pbBinary), varptr(pcbBinary), varptr(pdwSkip), varptr(pdwFlags))
; pszString : LPCWSTR -> "wstr"
; cchString : DWORD -> "int"
; dwFlags : CRYPT_STRING -> "int"
; pbBinary : BYTE* optional, out -> "sptr"
; pcbBinary : DWORD* in/out -> "sptr"
; pdwSkip : DWORD* optional, out -> "sptr"
; pdwFlags : DWORD* optional, out -> "sptr"
; ※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:

; BOOL CryptStringToBinaryW(LPCWSTR pszString, DWORD cchString, CRYPT_STRING dwFlags, BYTE* pbBinary, DWORD* pcbBinary, DWORD* pdwSkip, DWORD* pdwFlags)
#uselib "CRYPT32.dll"
#cfunc global CryptStringToBinaryW "CryptStringToBinaryW" wstr, int, int, var, var, var, var
; res = CryptStringToBinaryW(pszString, cchString, dwFlags, pbBinary, pcbBinary, pdwSkip, pdwFlags)
; pszString : LPCWSTR -> "wstr"
; cchString : DWORD -> "int"
; dwFlags : CRYPT_STRING -> "int"
; pbBinary : BYTE* optional, out -> "var"
; pcbBinary : DWORD* in/out -> "var"
; pdwSkip : DWORD* optional, out -> "var"
; pdwFlags : DWORD* optional, 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。; BOOL CryptStringToBinaryW(LPCWSTR pszString, DWORD cchString, CRYPT_STRING dwFlags, BYTE* pbBinary, DWORD* pcbBinary, DWORD* pdwSkip, DWORD* pdwFlags)
#uselib "CRYPT32.dll"
#cfunc global CryptStringToBinaryW "CryptStringToBinaryW" wstr, int, int, intptr, intptr, intptr, intptr
; res = CryptStringToBinaryW(pszString, cchString, dwFlags, varptr(pbBinary), varptr(pcbBinary), varptr(pdwSkip), varptr(pdwFlags))
; pszString : LPCWSTR -> "wstr"
; cchString : DWORD -> "int"
; dwFlags : CRYPT_STRING -> "int"
; pbBinary : BYTE* optional, out -> "intptr"
; pcbBinary : DWORD* in/out -> "intptr"
; pdwSkip : DWORD* optional, out -> "intptr"
; pdwFlags : DWORD* optional, out -> "intptr"
; ※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 (
	crypt32 = windows.NewLazySystemDLL("CRYPT32.dll")
	procCryptStringToBinaryW = crypt32.NewProc("CryptStringToBinaryW")
)

// pszString (LPCWSTR), cchString (DWORD), dwFlags (CRYPT_STRING), pbBinary (BYTE* optional, out), pcbBinary (DWORD* in/out), pdwSkip (DWORD* optional, out), pdwFlags (DWORD* optional, out)
r1, _, err := procCryptStringToBinaryW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszString))),
	uintptr(cchString),
	uintptr(dwFlags),
	uintptr(pbBinary),
	uintptr(pcbBinary),
	uintptr(pdwSkip),
	uintptr(pdwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CryptStringToBinaryW(
  pszString: PWideChar;   // LPCWSTR
  cchString: DWORD;   // DWORD
  dwFlags: DWORD;   // CRYPT_STRING
  pbBinary: Pointer;   // BYTE* optional, out
  pcbBinary: Pointer;   // DWORD* in/out
  pdwSkip: Pointer;   // DWORD* optional, out
  pdwFlags: Pointer   // DWORD* optional, out
): BOOL; stdcall;
  external 'CRYPT32.dll' name 'CryptStringToBinaryW';

result := DllCall("CRYPT32\CryptStringToBinaryW"
    , "WStr", pszString   ; LPCWSTR
    , "UInt", cchString   ; DWORD
    , "UInt", dwFlags   ; CRYPT_STRING
    , "Ptr", pbBinary   ; BYTE* optional, out
    , "Ptr", pcbBinary   ; DWORD* in/out
    , "Ptr", pdwSkip   ; DWORD* optional, out
    , "Ptr", pdwFlags   ; DWORD* optional, out
    , "Int")   ; return: BOOL

●CryptStringToBinaryW(pszString, cchString, dwFlags, pbBinary, pcbBinary, pdwSkip, pdwFlags) = DLL("CRYPT32.dll", "bool CryptStringToBinaryW(char*, dword, dword, void*, void*, void*, void*)")
# 呼び出し: CryptStringToBinaryW(pszString, cchString, dwFlags, pbBinary, pcbBinary, pdwSkip, pdwFlags)
# pszString : LPCWSTR -> "char*"
# cchString : DWORD -> "dword"
# dwFlags : CRYPT_STRING -> "dword"
# pbBinary : BYTE* optional, out -> "void*"
# pcbBinary : DWORD* in/out -> "void*"
# pdwSkip : DWORD* optional, out -> "void*"
# pdwFlags : DWORD* optional, 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。