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BCryptImportKey

関数

キーBLOBからCNGの共通鍵をインポートする。

DLLbcrypt.dll呼出規約winapi対応OSWindows Vista 以降

シグネチャ

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

NTSTATUS BCryptImportKey(
    BCRYPT_ALG_HANDLE hAlgorithm,
    BCRYPT_KEY_HANDLE hImportKey,   // optional
    LPCWSTR pszBlobType,
    BCRYPT_KEY_HANDLE* phKey,
    BYTE* pbKeyObject,   // optional
    DWORD cbKeyObject,
    BYTE* pbInput,
    DWORD cbInput,
    DWORD dwFlags
);

パラメーター

名前	型	方向
hAlgorithm	BCRYPT_ALG_HANDLE	in
hImportKey	BCRYPT_KEY_HANDLE	inoptional
pszBlobType	LPCWSTR	in
phKey	BCRYPT_KEY_HANDLE*	out
pbKeyObject	BYTE*	outoptional
cbKeyObject	DWORD	in
pbInput	BYTE*	in
cbInput	DWORD	in
dwFlags	DWORD	in

戻り値の型: NTSTATUS

各言語での呼び出し定義

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

NTSTATUS BCryptImportKey(
    BCRYPT_ALG_HANDLE hAlgorithm,
    BCRYPT_KEY_HANDLE hImportKey,   // optional
    LPCWSTR pszBlobType,
    BCRYPT_KEY_HANDLE* phKey,
    BYTE* pbKeyObject,   // optional
    DWORD cbKeyObject,
    BYTE* pbInput,
    DWORD cbInput,
    DWORD dwFlags
);

[DllImport("bcrypt.dll", ExactSpelling = true)]
static extern int BCryptImportKey(
    IntPtr hAlgorithm,   // BCRYPT_ALG_HANDLE
    IntPtr hImportKey,   // BCRYPT_KEY_HANDLE optional
    [MarshalAs(UnmanagedType.LPWStr)] string pszBlobType,   // LPCWSTR
    IntPtr phKey,   // BCRYPT_KEY_HANDLE* out
    IntPtr pbKeyObject,   // BYTE* optional, out
    uint cbKeyObject,   // DWORD
    IntPtr pbInput,   // BYTE*
    uint cbInput,   // DWORD
    uint dwFlags   // DWORD
);

<DllImport("bcrypt.dll", ExactSpelling:=True)>
Public Shared Function BCryptImportKey(
    hAlgorithm As IntPtr,   ' BCRYPT_ALG_HANDLE
    hImportKey As IntPtr,   ' BCRYPT_KEY_HANDLE optional
    <MarshalAs(UnmanagedType.LPWStr)> pszBlobType As String,   ' LPCWSTR
    phKey As IntPtr,   ' BCRYPT_KEY_HANDLE* out
    pbKeyObject As IntPtr,   ' BYTE* optional, out
    cbKeyObject As UInteger,   ' DWORD
    pbInput As IntPtr,   ' BYTE*
    cbInput As UInteger,   ' DWORD
    dwFlags As UInteger   ' DWORD
) As Integer
End Function

' hAlgorithm : BCRYPT_ALG_HANDLE
' hImportKey : BCRYPT_KEY_HANDLE optional
' pszBlobType : LPCWSTR
' phKey : BCRYPT_KEY_HANDLE* out
' pbKeyObject : BYTE* optional, out
' cbKeyObject : DWORD
' pbInput : BYTE*
' cbInput : DWORD
' dwFlags : DWORD
Declare PtrSafe Function BCryptImportKey Lib "bcrypt" ( _
    ByVal hAlgorithm As LongPtr, _
    ByVal hImportKey As LongPtr, _
    ByVal pszBlobType As LongPtr, _
    ByVal phKey As LongPtr, _
    ByVal pbKeyObject As LongPtr, _
    ByVal cbKeyObject As Long, _
    ByVal pbInput As LongPtr, _
    ByVal cbInput 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

BCryptImportKey = ctypes.windll.bcrypt.BCryptImportKey
BCryptImportKey.restype = ctypes.c_int
BCryptImportKey.argtypes = [
    wintypes.HANDLE,  # hAlgorithm : BCRYPT_ALG_HANDLE
    wintypes.HANDLE,  # hImportKey : BCRYPT_KEY_HANDLE optional
    wintypes.LPCWSTR,  # pszBlobType : LPCWSTR
    ctypes.c_void_p,  # phKey : BCRYPT_KEY_HANDLE* out
    ctypes.POINTER(ctypes.c_ubyte),  # pbKeyObject : BYTE* optional, out
    wintypes.DWORD,  # cbKeyObject : DWORD
    ctypes.POINTER(ctypes.c_ubyte),  # pbInput : BYTE*
    wintypes.DWORD,  # cbInput : DWORD
    wintypes.DWORD,  # dwFlags : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('bcrypt.dll')
BCryptImportKey = Fiddle::Function.new(
  lib['BCryptImportKey'],
  [
    Fiddle::TYPE_VOIDP,  # hAlgorithm : BCRYPT_ALG_HANDLE
    Fiddle::TYPE_VOIDP,  # hImportKey : BCRYPT_KEY_HANDLE optional
    Fiddle::TYPE_VOIDP,  # pszBlobType : LPCWSTR
    Fiddle::TYPE_VOIDP,  # phKey : BCRYPT_KEY_HANDLE* out
    Fiddle::TYPE_VOIDP,  # pbKeyObject : BYTE* optional, out
    -Fiddle::TYPE_INT,  # cbKeyObject : DWORD
    Fiddle::TYPE_VOIDP,  # pbInput : BYTE*
    -Fiddle::TYPE_INT,  # cbInput : DWORD
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "bcrypt")]
extern "system" {
    fn BCryptImportKey(
        hAlgorithm: *mut core::ffi::c_void,  // BCRYPT_ALG_HANDLE
        hImportKey: *mut core::ffi::c_void,  // BCRYPT_KEY_HANDLE optional
        pszBlobType: *const u16,  // LPCWSTR
        phKey: *mut *mut core::ffi::c_void,  // BCRYPT_KEY_HANDLE* out
        pbKeyObject: *mut u8,  // BYTE* optional, out
        cbKeyObject: u32,  // DWORD
        pbInput: *mut u8,  // BYTE*
        cbInput: u32,  // DWORD
        dwFlags: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("bcrypt.dll")]
public static extern int BCryptImportKey(IntPtr hAlgorithm, IntPtr hImportKey, [MarshalAs(UnmanagedType.LPWStr)] string pszBlobType, IntPtr phKey, IntPtr pbKeyObject, uint cbKeyObject, IntPtr pbInput, uint cbInput, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'bcrypt_BCryptImportKey' -Namespace Win32 -PassThru
# $api::BCryptImportKey(hAlgorithm, hImportKey, pszBlobType, phKey, pbKeyObject, cbKeyObject, pbInput, cbInput, dwFlags)

#uselib "bcrypt.dll"
#func global BCryptImportKey "BCryptImportKey" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; BCryptImportKey hAlgorithm, hImportKey, pszBlobType, phKey, varptr(pbKeyObject), cbKeyObject, varptr(pbInput), cbInput, dwFlags   ; 戻り値は stat
; hAlgorithm : BCRYPT_ALG_HANDLE -> "sptr"
; hImportKey : BCRYPT_KEY_HANDLE optional -> "sptr"
; pszBlobType : LPCWSTR -> "sptr"
; phKey : BCRYPT_KEY_HANDLE* out -> "sptr"
; pbKeyObject : BYTE* optional, out -> "sptr"
; cbKeyObject : DWORD -> "sptr"
; pbInput : BYTE* -> "sptr"
; cbInput : 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 "bcrypt.dll"
#cfunc global BCryptImportKey "BCryptImportKey" sptr, sptr, wstr, sptr, var, int, var, int, int
; res = BCryptImportKey(hAlgorithm, hImportKey, pszBlobType, phKey, pbKeyObject, cbKeyObject, pbInput, cbInput, dwFlags)
; hAlgorithm : BCRYPT_ALG_HANDLE -> "sptr"
; hImportKey : BCRYPT_KEY_HANDLE optional -> "sptr"
; pszBlobType : LPCWSTR -> "wstr"
; phKey : BCRYPT_KEY_HANDLE* out -> "sptr"
; pbKeyObject : BYTE* optional, out -> "var"
; cbKeyObject : DWORD -> "int"
; pbInput : BYTE* -> "var"
; cbInput : 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 "bcrypt.dll"
#cfunc global BCryptImportKey "BCryptImportKey" sptr, sptr, wstr, sptr, sptr, int, sptr, int, int
; res = BCryptImportKey(hAlgorithm, hImportKey, pszBlobType, phKey, varptr(pbKeyObject), cbKeyObject, varptr(pbInput), cbInput, dwFlags)
; hAlgorithm : BCRYPT_ALG_HANDLE -> "sptr"
; hImportKey : BCRYPT_KEY_HANDLE optional -> "sptr"
; pszBlobType : LPCWSTR -> "wstr"
; phKey : BCRYPT_KEY_HANDLE* out -> "sptr"
; pbKeyObject : BYTE* optional, out -> "sptr"
; cbKeyObject : DWORD -> "int"
; pbInput : BYTE* -> "sptr"
; cbInput : 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:

; NTSTATUS BCryptImportKey(BCRYPT_ALG_HANDLE hAlgorithm, BCRYPT_KEY_HANDLE hImportKey, LPCWSTR pszBlobType, BCRYPT_KEY_HANDLE* phKey, BYTE* pbKeyObject, DWORD cbKeyObject, BYTE* pbInput, DWORD cbInput, DWORD dwFlags)
#uselib "bcrypt.dll"
#cfunc global BCryptImportKey "BCryptImportKey" intptr, intptr, wstr, intptr, var, int, var, int, int
; res = BCryptImportKey(hAlgorithm, hImportKey, pszBlobType, phKey, pbKeyObject, cbKeyObject, pbInput, cbInput, dwFlags)
; hAlgorithm : BCRYPT_ALG_HANDLE -> "intptr"
; hImportKey : BCRYPT_KEY_HANDLE optional -> "intptr"
; pszBlobType : LPCWSTR -> "wstr"
; phKey : BCRYPT_KEY_HANDLE* out -> "intptr"
; pbKeyObject : BYTE* optional, out -> "var"
; cbKeyObject : DWORD -> "int"
; pbInput : BYTE* -> "var"
; cbInput : 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。; NTSTATUS BCryptImportKey(BCRYPT_ALG_HANDLE hAlgorithm, BCRYPT_KEY_HANDLE hImportKey, LPCWSTR pszBlobType, BCRYPT_KEY_HANDLE* phKey, BYTE* pbKeyObject, DWORD cbKeyObject, BYTE* pbInput, DWORD cbInput, DWORD dwFlags)
#uselib "bcrypt.dll"
#cfunc global BCryptImportKey "BCryptImportKey" intptr, intptr, wstr, intptr, intptr, int, intptr, int, int
; res = BCryptImportKey(hAlgorithm, hImportKey, pszBlobType, phKey, varptr(pbKeyObject), cbKeyObject, varptr(pbInput), cbInput, dwFlags)
; hAlgorithm : BCRYPT_ALG_HANDLE -> "intptr"
; hImportKey : BCRYPT_KEY_HANDLE optional -> "intptr"
; pszBlobType : LPCWSTR -> "wstr"
; phKey : BCRYPT_KEY_HANDLE* out -> "intptr"
; pbKeyObject : BYTE* optional, out -> "intptr"
; cbKeyObject : DWORD -> "int"
; pbInput : BYTE* -> "intptr"
; cbInput : 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 (
	bcrypt = windows.NewLazySystemDLL("bcrypt.dll")
	procBCryptImportKey = bcrypt.NewProc("BCryptImportKey")
)

// hAlgorithm (BCRYPT_ALG_HANDLE), hImportKey (BCRYPT_KEY_HANDLE optional), pszBlobType (LPCWSTR), phKey (BCRYPT_KEY_HANDLE* out), pbKeyObject (BYTE* optional, out), cbKeyObject (DWORD), pbInput (BYTE*), cbInput (DWORD), dwFlags (DWORD)
r1, _, err := procBCryptImportKey.Call(
	uintptr(hAlgorithm),
	uintptr(hImportKey),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszBlobType))),
	uintptr(phKey),
	uintptr(pbKeyObject),
	uintptr(cbKeyObject),
	uintptr(pbInput),
	uintptr(cbInput),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // NTSTATUS

function BCryptImportKey(
  hAlgorithm: THandle;   // BCRYPT_ALG_HANDLE
  hImportKey: THandle;   // BCRYPT_KEY_HANDLE optional
  pszBlobType: PWideChar;   // LPCWSTR
  phKey: Pointer;   // BCRYPT_KEY_HANDLE* out
  pbKeyObject: Pointer;   // BYTE* optional, out
  cbKeyObject: DWORD;   // DWORD
  pbInput: Pointer;   // BYTE*
  cbInput: DWORD;   // DWORD
  dwFlags: DWORD   // DWORD
): Integer; stdcall;
  external 'bcrypt.dll' name 'BCryptImportKey';

result := DllCall("bcrypt\BCryptImportKey"
    , "Ptr", hAlgorithm   ; BCRYPT_ALG_HANDLE
    , "Ptr", hImportKey   ; BCRYPT_KEY_HANDLE optional
    , "WStr", pszBlobType   ; LPCWSTR
    , "Ptr", phKey   ; BCRYPT_KEY_HANDLE* out
    , "Ptr", pbKeyObject   ; BYTE* optional, out
    , "UInt", cbKeyObject   ; DWORD
    , "Ptr", pbInput   ; BYTE*
    , "UInt", cbInput   ; DWORD
    , "UInt", dwFlags   ; DWORD
    , "Int")   ; return: NTSTATUS

●BCryptImportKey(hAlgorithm, hImportKey, pszBlobType, phKey, pbKeyObject, cbKeyObject, pbInput, cbInput, dwFlags) = DLL("bcrypt.dll", "int BCryptImportKey(void*, void*, char*, void*, void*, dword, void*, dword, dword)")
# 呼び出し: BCryptImportKey(hAlgorithm, hImportKey, pszBlobType, phKey, pbKeyObject, cbKeyObject, pbInput, cbInput, dwFlags)
# hAlgorithm : BCRYPT_ALG_HANDLE -> "void*"
# hImportKey : BCRYPT_KEY_HANDLE optional -> "void*"
# pszBlobType : LPCWSTR -> "char*"
# phKey : BCRYPT_KEY_HANDLE* out -> "void*"
# pbKeyObject : BYTE* optional, out -> "void*"
# cbKeyObject : DWORD -> "dword"
# pbInput : BYTE* -> "void*"
# cbInput : 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)。