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BCryptEncrypt

関数

CNGの鍵を使いデータを暗号化する。

DLLbcrypt.dll呼出規約winapi対応OSWindows Vista 以降

シグネチャ

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

NTSTATUS BCryptEncrypt(
    BCRYPT_KEY_HANDLE hKey,
    BYTE* pbInput,   // optional
    DWORD cbInput,
    void* pPaddingInfo,   // optional
    BYTE* pbIV,   // optional
    DWORD cbIV,
    BYTE* pbOutput,   // optional
    DWORD cbOutput,
    DWORD* pcbResult,
    BCRYPT_FLAGS dwFlags
);

パラメーター

名前	型	方向
hKey	BCRYPT_KEY_HANDLE	inout
pbInput	BYTE*	inoptional
cbInput	DWORD	in
pPaddingInfo	void*	inoptional
pbIV	BYTE*	inoutoptional
cbIV	DWORD	in
pbOutput	BYTE*	outoptional
cbOutput	DWORD	in
pcbResult	DWORD*	out
dwFlags	BCRYPT_FLAGS	in

戻り値の型: NTSTATUS

各言語での呼び出し定義

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

NTSTATUS BCryptEncrypt(
    BCRYPT_KEY_HANDLE hKey,
    BYTE* pbInput,   // optional
    DWORD cbInput,
    void* pPaddingInfo,   // optional
    BYTE* pbIV,   // optional
    DWORD cbIV,
    BYTE* pbOutput,   // optional
    DWORD cbOutput,
    DWORD* pcbResult,
    BCRYPT_FLAGS dwFlags
);

[DllImport("bcrypt.dll", ExactSpelling = true)]
static extern int BCryptEncrypt(
    IntPtr hKey,   // BCRYPT_KEY_HANDLE in/out
    IntPtr pbInput,   // BYTE* optional
    uint cbInput,   // DWORD
    IntPtr pPaddingInfo,   // void* optional
    IntPtr pbIV,   // BYTE* optional, in/out
    uint cbIV,   // DWORD
    IntPtr pbOutput,   // BYTE* optional, out
    uint cbOutput,   // DWORD
    out uint pcbResult,   // DWORD* out
    uint dwFlags   // BCRYPT_FLAGS
);

<DllImport("bcrypt.dll", ExactSpelling:=True)>
Public Shared Function BCryptEncrypt(
    hKey As IntPtr,   ' BCRYPT_KEY_HANDLE in/out
    pbInput As IntPtr,   ' BYTE* optional
    cbInput As UInteger,   ' DWORD
    pPaddingInfo As IntPtr,   ' void* optional
    pbIV As IntPtr,   ' BYTE* optional, in/out
    cbIV As UInteger,   ' DWORD
    pbOutput As IntPtr,   ' BYTE* optional, out
    cbOutput As UInteger,   ' DWORD
    <Out> ByRef pcbResult As UInteger,   ' DWORD* out
    dwFlags As UInteger   ' BCRYPT_FLAGS
) As Integer
End Function

' hKey : BCRYPT_KEY_HANDLE in/out
' pbInput : BYTE* optional
' cbInput : DWORD
' pPaddingInfo : void* optional
' pbIV : BYTE* optional, in/out
' cbIV : DWORD
' pbOutput : BYTE* optional, out
' cbOutput : DWORD
' pcbResult : DWORD* out
' dwFlags : BCRYPT_FLAGS
Declare PtrSafe Function BCryptEncrypt Lib "bcrypt" ( _
    ByVal hKey As LongPtr, _
    ByVal pbInput As LongPtr, _
    ByVal cbInput As Long, _
    ByVal pPaddingInfo As LongPtr, _
    ByVal pbIV As LongPtr, _
    ByVal cbIV As Long, _
    ByVal pbOutput As LongPtr, _
    ByVal cbOutput As Long, _
    ByRef pcbResult 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

BCryptEncrypt = ctypes.windll.bcrypt.BCryptEncrypt
BCryptEncrypt.restype = ctypes.c_int
BCryptEncrypt.argtypes = [
    wintypes.HANDLE,  # hKey : BCRYPT_KEY_HANDLE in/out
    ctypes.POINTER(ctypes.c_ubyte),  # pbInput : BYTE* optional
    wintypes.DWORD,  # cbInput : DWORD
    ctypes.POINTER(None),  # pPaddingInfo : void* optional
    ctypes.POINTER(ctypes.c_ubyte),  # pbIV : BYTE* optional, in/out
    wintypes.DWORD,  # cbIV : DWORD
    ctypes.POINTER(ctypes.c_ubyte),  # pbOutput : BYTE* optional, out
    wintypes.DWORD,  # cbOutput : DWORD
    ctypes.POINTER(wintypes.DWORD),  # pcbResult : DWORD* out
    wintypes.DWORD,  # dwFlags : BCRYPT_FLAGS
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('bcrypt.dll')
BCryptEncrypt = Fiddle::Function.new(
  lib['BCryptEncrypt'],
  [
    Fiddle::TYPE_VOIDP,  # hKey : BCRYPT_KEY_HANDLE in/out
    Fiddle::TYPE_VOIDP,  # pbInput : BYTE* optional
    -Fiddle::TYPE_INT,  # cbInput : DWORD
    Fiddle::TYPE_VOIDP,  # pPaddingInfo : void* optional
    Fiddle::TYPE_VOIDP,  # pbIV : BYTE* optional, in/out
    -Fiddle::TYPE_INT,  # cbIV : DWORD
    Fiddle::TYPE_VOIDP,  # pbOutput : BYTE* optional, out
    -Fiddle::TYPE_INT,  # cbOutput : DWORD
    Fiddle::TYPE_VOIDP,  # pcbResult : DWORD* out
    -Fiddle::TYPE_INT,  # dwFlags : BCRYPT_FLAGS
  ],
  Fiddle::TYPE_INT)

#[link(name = "bcrypt")]
extern "system" {
    fn BCryptEncrypt(
        hKey: *mut core::ffi::c_void,  // BCRYPT_KEY_HANDLE in/out
        pbInput: *mut u8,  // BYTE* optional
        cbInput: u32,  // DWORD
        pPaddingInfo: *mut (),  // void* optional
        pbIV: *mut u8,  // BYTE* optional, in/out
        cbIV: u32,  // DWORD
        pbOutput: *mut u8,  // BYTE* optional, out
        cbOutput: u32,  // DWORD
        pcbResult: *mut u32,  // DWORD* out
        dwFlags: u32  // BCRYPT_FLAGS
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("bcrypt.dll")]
public static extern int BCryptEncrypt(IntPtr hKey, IntPtr pbInput, uint cbInput, IntPtr pPaddingInfo, IntPtr pbIV, uint cbIV, IntPtr pbOutput, uint cbOutput, out uint pcbResult, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'bcrypt_BCryptEncrypt' -Namespace Win32 -PassThru
# $api::BCryptEncrypt(hKey, pbInput, cbInput, pPaddingInfo, pbIV, cbIV, pbOutput, cbOutput, pcbResult, dwFlags)

#uselib "bcrypt.dll"
#func global BCryptEncrypt "BCryptEncrypt" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; BCryptEncrypt hKey, varptr(pbInput), cbInput, pPaddingInfo, varptr(pbIV), cbIV, varptr(pbOutput), cbOutput, varptr(pcbResult), dwFlags   ; 戻り値は stat
; hKey : BCRYPT_KEY_HANDLE in/out -> "sptr"
; pbInput : BYTE* optional -> "sptr"
; cbInput : DWORD -> "sptr"
; pPaddingInfo : void* optional -> "sptr"
; pbIV : BYTE* optional, in/out -> "sptr"
; cbIV : DWORD -> "sptr"
; pbOutput : BYTE* optional, out -> "sptr"
; cbOutput : DWORD -> "sptr"
; pcbResult : DWORD* out -> "sptr"
; dwFlags : BCRYPT_FLAGS -> "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 BCryptEncrypt "BCryptEncrypt" sptr, var, int, sptr, var, int, var, int, var, int
; res = BCryptEncrypt(hKey, pbInput, cbInput, pPaddingInfo, pbIV, cbIV, pbOutput, cbOutput, pcbResult, dwFlags)
; hKey : BCRYPT_KEY_HANDLE in/out -> "sptr"
; pbInput : BYTE* optional -> "var"
; cbInput : DWORD -> "int"
; pPaddingInfo : void* optional -> "sptr"
; pbIV : BYTE* optional, in/out -> "var"
; cbIV : DWORD -> "int"
; pbOutput : BYTE* optional, out -> "var"
; cbOutput : DWORD -> "int"
; pcbResult : DWORD* out -> "var"
; dwFlags : BCRYPT_FLAGS -> "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 BCryptEncrypt "BCryptEncrypt" sptr, sptr, int, sptr, sptr, int, sptr, int, sptr, int
; res = BCryptEncrypt(hKey, varptr(pbInput), cbInput, pPaddingInfo, varptr(pbIV), cbIV, varptr(pbOutput), cbOutput, varptr(pcbResult), dwFlags)
; hKey : BCRYPT_KEY_HANDLE in/out -> "sptr"
; pbInput : BYTE* optional -> "sptr"
; cbInput : DWORD -> "int"
; pPaddingInfo : void* optional -> "sptr"
; pbIV : BYTE* optional, in/out -> "sptr"
; cbIV : DWORD -> "int"
; pbOutput : BYTE* optional, out -> "sptr"
; cbOutput : DWORD -> "int"
; pcbResult : DWORD* out -> "sptr"
; dwFlags : BCRYPT_FLAGS -> "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 BCryptEncrypt(BCRYPT_KEY_HANDLE hKey, BYTE* pbInput, DWORD cbInput, void* pPaddingInfo, BYTE* pbIV, DWORD cbIV, BYTE* pbOutput, DWORD cbOutput, DWORD* pcbResult, BCRYPT_FLAGS dwFlags)
#uselib "bcrypt.dll"
#cfunc global BCryptEncrypt "BCryptEncrypt" intptr, var, int, intptr, var, int, var, int, var, int
; res = BCryptEncrypt(hKey, pbInput, cbInput, pPaddingInfo, pbIV, cbIV, pbOutput, cbOutput, pcbResult, dwFlags)
; hKey : BCRYPT_KEY_HANDLE in/out -> "intptr"
; pbInput : BYTE* optional -> "var"
; cbInput : DWORD -> "int"
; pPaddingInfo : void* optional -> "intptr"
; pbIV : BYTE* optional, in/out -> "var"
; cbIV : DWORD -> "int"
; pbOutput : BYTE* optional, out -> "var"
; cbOutput : DWORD -> "int"
; pcbResult : DWORD* out -> "var"
; dwFlags : BCRYPT_FLAGS -> "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 BCryptEncrypt(BCRYPT_KEY_HANDLE hKey, BYTE* pbInput, DWORD cbInput, void* pPaddingInfo, BYTE* pbIV, DWORD cbIV, BYTE* pbOutput, DWORD cbOutput, DWORD* pcbResult, BCRYPT_FLAGS dwFlags)
#uselib "bcrypt.dll"
#cfunc global BCryptEncrypt "BCryptEncrypt" intptr, intptr, int, intptr, intptr, int, intptr, int, intptr, int
; res = BCryptEncrypt(hKey, varptr(pbInput), cbInput, pPaddingInfo, varptr(pbIV), cbIV, varptr(pbOutput), cbOutput, varptr(pcbResult), dwFlags)
; hKey : BCRYPT_KEY_HANDLE in/out -> "intptr"
; pbInput : BYTE* optional -> "intptr"
; cbInput : DWORD -> "int"
; pPaddingInfo : void* optional -> "intptr"
; pbIV : BYTE* optional, in/out -> "intptr"
; cbIV : DWORD -> "int"
; pbOutput : BYTE* optional, out -> "intptr"
; cbOutput : DWORD -> "int"
; pcbResult : DWORD* out -> "intptr"
; dwFlags : BCRYPT_FLAGS -> "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")
	procBCryptEncrypt = bcrypt.NewProc("BCryptEncrypt")
)

// hKey (BCRYPT_KEY_HANDLE in/out), pbInput (BYTE* optional), cbInput (DWORD), pPaddingInfo (void* optional), pbIV (BYTE* optional, in/out), cbIV (DWORD), pbOutput (BYTE* optional, out), cbOutput (DWORD), pcbResult (DWORD* out), dwFlags (BCRYPT_FLAGS)
r1, _, err := procBCryptEncrypt.Call(
	uintptr(hKey),
	uintptr(pbInput),
	uintptr(cbInput),
	uintptr(pPaddingInfo),
	uintptr(pbIV),
	uintptr(cbIV),
	uintptr(pbOutput),
	uintptr(cbOutput),
	uintptr(pcbResult),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // NTSTATUS

function BCryptEncrypt(
  hKey: THandle;   // BCRYPT_KEY_HANDLE in/out
  pbInput: Pointer;   // BYTE* optional
  cbInput: DWORD;   // DWORD
  pPaddingInfo: Pointer;   // void* optional
  pbIV: Pointer;   // BYTE* optional, in/out
  cbIV: DWORD;   // DWORD
  pbOutput: Pointer;   // BYTE* optional, out
  cbOutput: DWORD;   // DWORD
  pcbResult: Pointer;   // DWORD* out
  dwFlags: DWORD   // BCRYPT_FLAGS
): Integer; stdcall;
  external 'bcrypt.dll' name 'BCryptEncrypt';

result := DllCall("bcrypt\BCryptEncrypt"
    , "Ptr", hKey   ; BCRYPT_KEY_HANDLE in/out
    , "Ptr", pbInput   ; BYTE* optional
    , "UInt", cbInput   ; DWORD
    , "Ptr", pPaddingInfo   ; void* optional
    , "Ptr", pbIV   ; BYTE* optional, in/out
    , "UInt", cbIV   ; DWORD
    , "Ptr", pbOutput   ; BYTE* optional, out
    , "UInt", cbOutput   ; DWORD
    , "Ptr", pcbResult   ; DWORD* out
    , "UInt", dwFlags   ; BCRYPT_FLAGS
    , "Int")   ; return: NTSTATUS

●BCryptEncrypt(hKey, pbInput, cbInput, pPaddingInfo, pbIV, cbIV, pbOutput, cbOutput, pcbResult, dwFlags) = DLL("bcrypt.dll", "int BCryptEncrypt(void*, void*, dword, void*, void*, dword, void*, dword, void*, dword)")
# 呼び出し: BCryptEncrypt(hKey, pbInput, cbInput, pPaddingInfo, pbIV, cbIV, pbOutput, cbOutput, pcbResult, dwFlags)
# hKey : BCRYPT_KEY_HANDLE in/out -> "void*"
# pbInput : BYTE* optional -> "void*"
# cbInput : DWORD -> "dword"
# pPaddingInfo : void* optional -> "void*"
# pbIV : BYTE* optional, in/out -> "void*"
# cbIV : DWORD -> "dword"
# pbOutput : BYTE* optional, out -> "void*"
# cbOutput : DWORD -> "dword"
# pcbResult : DWORD* out -> "void*"
# dwFlags : BCRYPT_FLAGS -> "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)。