ホーム › Security.Cryptography › BCryptConfigureContext

BCryptConfigureContext

関数

指定したCNGコンテキストの構成情報を設定する。

DLLbcrypt.dll呼出規約winapi対応OSWindows Vista 以降

シグネチャ

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

NTSTATUS BCryptConfigureContext(
    BCRYPT_TABLE dwTable,
    LPCWSTR pszContext,
    CRYPT_CONTEXT_CONFIG* pConfig
);

パラメーター

名前	型	方向
dwTable	BCRYPT_TABLE	in
pszContext	LPCWSTR	in
pConfig	CRYPT_CONTEXT_CONFIG*	in

戻り値の型: NTSTATUS

各言語での呼び出し定義

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

NTSTATUS BCryptConfigureContext(
    BCRYPT_TABLE dwTable,
    LPCWSTR pszContext,
    CRYPT_CONTEXT_CONFIG* pConfig
);

[DllImport("bcrypt.dll", ExactSpelling = true)]
static extern int BCryptConfigureContext(
    uint dwTable,   // BCRYPT_TABLE
    [MarshalAs(UnmanagedType.LPWStr)] string pszContext,   // LPCWSTR
    IntPtr pConfig   // CRYPT_CONTEXT_CONFIG*
);

<DllImport("bcrypt.dll", ExactSpelling:=True)>
Public Shared Function BCryptConfigureContext(
    dwTable As UInteger,   ' BCRYPT_TABLE
    <MarshalAs(UnmanagedType.LPWStr)> pszContext As String,   ' LPCWSTR
    pConfig As IntPtr   ' CRYPT_CONTEXT_CONFIG*
) As Integer
End Function

' dwTable : BCRYPT_TABLE
' pszContext : LPCWSTR
' pConfig : CRYPT_CONTEXT_CONFIG*
Declare PtrSafe Function BCryptConfigureContext Lib "bcrypt" ( _
    ByVal dwTable As Long, _
    ByVal pszContext As LongPtr, _
    ByVal pConfig 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

BCryptConfigureContext = ctypes.windll.bcrypt.BCryptConfigureContext
BCryptConfigureContext.restype = ctypes.c_int
BCryptConfigureContext.argtypes = [
    wintypes.DWORD,  # dwTable : BCRYPT_TABLE
    wintypes.LPCWSTR,  # pszContext : LPCWSTR
    ctypes.c_void_p,  # pConfig : CRYPT_CONTEXT_CONFIG*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('bcrypt.dll')
BCryptConfigureContext = Fiddle::Function.new(
  lib['BCryptConfigureContext'],
  [
    -Fiddle::TYPE_INT,  # dwTable : BCRYPT_TABLE
    Fiddle::TYPE_VOIDP,  # pszContext : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pConfig : CRYPT_CONTEXT_CONFIG*
  ],
  Fiddle::TYPE_INT)

#[link(name = "bcrypt")]
extern "system" {
    fn BCryptConfigureContext(
        dwTable: u32,  // BCRYPT_TABLE
        pszContext: *const u16,  // LPCWSTR
        pConfig: *mut CRYPT_CONTEXT_CONFIG  // CRYPT_CONTEXT_CONFIG*
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("bcrypt.dll")]
public static extern int BCryptConfigureContext(uint dwTable, [MarshalAs(UnmanagedType.LPWStr)] string pszContext, IntPtr pConfig);
"@
$api = Add-Type -MemberDefinition $sig -Name 'bcrypt_BCryptConfigureContext' -Namespace Win32 -PassThru
# $api::BCryptConfigureContext(dwTable, pszContext, pConfig)

#uselib "bcrypt.dll"
#func global BCryptConfigureContext "BCryptConfigureContext" sptr, sptr, sptr
; BCryptConfigureContext dwTable, pszContext, varptr(pConfig)   ; 戻り値は stat
; dwTable : BCRYPT_TABLE -> "sptr"
; pszContext : LPCWSTR -> "sptr"
; pConfig : CRYPT_CONTEXT_CONFIG* -> "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 "bcrypt.dll"
#cfunc global BCryptConfigureContext "BCryptConfigureContext" int, wstr, var
; res = BCryptConfigureContext(dwTable, pszContext, pConfig)
; dwTable : BCRYPT_TABLE -> "int"
; pszContext : LPCWSTR -> "wstr"
; pConfig : CRYPT_CONTEXT_CONFIG* -> "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 "bcrypt.dll"
#cfunc global BCryptConfigureContext "BCryptConfigureContext" int, wstr, sptr
; res = BCryptConfigureContext(dwTable, pszContext, varptr(pConfig))
; dwTable : BCRYPT_TABLE -> "int"
; pszContext : LPCWSTR -> "wstr"
; pConfig : CRYPT_CONTEXT_CONFIG* -> "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:

; NTSTATUS BCryptConfigureContext(BCRYPT_TABLE dwTable, LPCWSTR pszContext, CRYPT_CONTEXT_CONFIG* pConfig)
#uselib "bcrypt.dll"
#cfunc global BCryptConfigureContext "BCryptConfigureContext" int, wstr, var
; res = BCryptConfigureContext(dwTable, pszContext, pConfig)
; dwTable : BCRYPT_TABLE -> "int"
; pszContext : LPCWSTR -> "wstr"
; pConfig : CRYPT_CONTEXT_CONFIG* -> "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。; NTSTATUS BCryptConfigureContext(BCRYPT_TABLE dwTable, LPCWSTR pszContext, CRYPT_CONTEXT_CONFIG* pConfig)
#uselib "bcrypt.dll"
#cfunc global BCryptConfigureContext "BCryptConfigureContext" int, wstr, intptr
; res = BCryptConfigureContext(dwTable, pszContext, varptr(pConfig))
; dwTable : BCRYPT_TABLE -> "int"
; pszContext : LPCWSTR -> "wstr"
; pConfig : CRYPT_CONTEXT_CONFIG* -> "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 (
	bcrypt = windows.NewLazySystemDLL("bcrypt.dll")
	procBCryptConfigureContext = bcrypt.NewProc("BCryptConfigureContext")
)

// dwTable (BCRYPT_TABLE), pszContext (LPCWSTR), pConfig (CRYPT_CONTEXT_CONFIG*)
r1, _, err := procBCryptConfigureContext.Call(
	uintptr(dwTable),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszContext))),
	uintptr(pConfig),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // NTSTATUS

function BCryptConfigureContext(
  dwTable: DWORD;   // BCRYPT_TABLE
  pszContext: PWideChar;   // LPCWSTR
  pConfig: Pointer   // CRYPT_CONTEXT_CONFIG*
): Integer; stdcall;
  external 'bcrypt.dll' name 'BCryptConfigureContext';

result := DllCall("bcrypt\BCryptConfigureContext"
    , "UInt", dwTable   ; BCRYPT_TABLE
    , "WStr", pszContext   ; LPCWSTR
    , "Ptr", pConfig   ; CRYPT_CONTEXT_CONFIG*
    , "Int")   ; return: NTSTATUS

●BCryptConfigureContext(dwTable, pszContext, pConfig) = DLL("bcrypt.dll", "int BCryptConfigureContext(dword, char*, void*)")
# 呼び出し: BCryptConfigureContext(dwTable, pszContext, pConfig)
# dwTable : BCRYPT_TABLE -> "dword"
# pszContext : LPCWSTR -> "char*"
# pConfig : CRYPT_CONTEXT_CONFIG* -> "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)。