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CryptHashCertificate2

関数

CNGハッシュアルゴリズムでエンコード済みデータのハッシュを計算する。

DLLCRYPT32.dll呼出規約winapiSetLastErrorあり対応OSWindows Vista 以降

シグネチャ

// CRYPT32.dll
#include <windows.h>

BOOL CryptHashCertificate2(
    LPCWSTR pwszCNGHashAlgid,
    DWORD dwFlags,
    void* pvReserved,   // optional
    const BYTE* pbEncoded,   // optional
    DWORD cbEncoded,
    BYTE* pbComputedHash,   // optional
    DWORD* pcbComputedHash
);

パラメーター

名前	型	方向
pwszCNGHashAlgid	LPCWSTR	in
dwFlags	DWORD	in
pvReserved	void*	optional
pbEncoded	BYTE*	inoptional
cbEncoded	DWORD	in
pbComputedHash	BYTE*	outoptional
pcbComputedHash	DWORD*	inout

戻り値の型: BOOL

各言語での呼び出し定義

// CRYPT32.dll
#include <windows.h>

BOOL CryptHashCertificate2(
    LPCWSTR pwszCNGHashAlgid,
    DWORD dwFlags,
    void* pvReserved,   // optional
    const BYTE* pbEncoded,   // optional
    DWORD cbEncoded,
    BYTE* pbComputedHash,   // optional
    DWORD* pcbComputedHash
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("CRYPT32.dll", SetLastError = true, ExactSpelling = true)]
static extern bool CryptHashCertificate2(
    [MarshalAs(UnmanagedType.LPWStr)] string pwszCNGHashAlgid,   // LPCWSTR
    uint dwFlags,   // DWORD
    IntPtr pvReserved,   // void* optional
    IntPtr pbEncoded,   // BYTE* optional
    uint cbEncoded,   // DWORD
    IntPtr pbComputedHash,   // BYTE* optional, out
    ref uint pcbComputedHash   // DWORD* in/out
);

<DllImport("CRYPT32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CryptHashCertificate2(
    <MarshalAs(UnmanagedType.LPWStr)> pwszCNGHashAlgid As String,   ' LPCWSTR
    dwFlags As UInteger,   ' DWORD
    pvReserved As IntPtr,   ' void* optional
    pbEncoded As IntPtr,   ' BYTE* optional
    cbEncoded As UInteger,   ' DWORD
    pbComputedHash As IntPtr,   ' BYTE* optional, out
    ByRef pcbComputedHash As UInteger   ' DWORD* in/out
) As Boolean
End Function

' pwszCNGHashAlgid : LPCWSTR
' dwFlags : DWORD
' pvReserved : void* optional
' pbEncoded : BYTE* optional
' cbEncoded : DWORD
' pbComputedHash : BYTE* optional, out
' pcbComputedHash : DWORD* in/out
Declare PtrSafe Function CryptHashCertificate2 Lib "crypt32" ( _
    ByVal pwszCNGHashAlgid As LongPtr, _
    ByVal dwFlags As Long, _
    ByVal pvReserved As LongPtr, _
    ByVal pbEncoded As LongPtr, _
    ByVal cbEncoded As Long, _
    ByVal pbComputedHash As LongPtr, _
    ByRef pcbComputedHash 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

CryptHashCertificate2 = ctypes.windll.crypt32.CryptHashCertificate2
CryptHashCertificate2.restype = wintypes.BOOL
CryptHashCertificate2.argtypes = [
    wintypes.LPCWSTR,  # pwszCNGHashAlgid : LPCWSTR
    wintypes.DWORD,  # dwFlags : DWORD
    ctypes.POINTER(None),  # pvReserved : void* optional
    ctypes.POINTER(ctypes.c_ubyte),  # pbEncoded : BYTE* optional
    wintypes.DWORD,  # cbEncoded : DWORD
    ctypes.POINTER(ctypes.c_ubyte),  # pbComputedHash : BYTE* optional, out
    ctypes.POINTER(wintypes.DWORD),  # pcbComputedHash : DWORD* in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CRYPT32.dll')
CryptHashCertificate2 = Fiddle::Function.new(
  lib['CryptHashCertificate2'],
  [
    Fiddle::TYPE_VOIDP,  # pwszCNGHashAlgid : LPCWSTR
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
    Fiddle::TYPE_VOIDP,  # pvReserved : void* optional
    Fiddle::TYPE_VOIDP,  # pbEncoded : BYTE* optional
    -Fiddle::TYPE_INT,  # cbEncoded : DWORD
    Fiddle::TYPE_VOIDP,  # pbComputedHash : BYTE* optional, out
    Fiddle::TYPE_VOIDP,  # pcbComputedHash : DWORD* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "crypt32")]
extern "system" {
    fn CryptHashCertificate2(
        pwszCNGHashAlgid: *const u16,  // LPCWSTR
        dwFlags: u32,  // DWORD
        pvReserved: *mut (),  // void* optional
        pbEncoded: *const u8,  // BYTE* optional
        cbEncoded: u32,  // DWORD
        pbComputedHash: *mut u8,  // BYTE* optional, out
        pcbComputedHash: *mut u32  // DWORD* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("CRYPT32.dll", SetLastError = true)]
public static extern bool CryptHashCertificate2([MarshalAs(UnmanagedType.LPWStr)] string pwszCNGHashAlgid, uint dwFlags, IntPtr pvReserved, IntPtr pbEncoded, uint cbEncoded, IntPtr pbComputedHash, ref uint pcbComputedHash);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CRYPT32_CryptHashCertificate2' -Namespace Win32 -PassThru
# $api::CryptHashCertificate2(pwszCNGHashAlgid, dwFlags, pvReserved, pbEncoded, cbEncoded, pbComputedHash, pcbComputedHash)

#uselib "CRYPT32.dll"
#func global CryptHashCertificate2 "CryptHashCertificate2" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; CryptHashCertificate2 pwszCNGHashAlgid, dwFlags, pvReserved, varptr(pbEncoded), cbEncoded, varptr(pbComputedHash), varptr(pcbComputedHash)   ; 戻り値は stat
; pwszCNGHashAlgid : LPCWSTR -> "sptr"
; dwFlags : DWORD -> "sptr"
; pvReserved : void* optional -> "sptr"
; pbEncoded : BYTE* optional -> "sptr"
; cbEncoded : DWORD -> "sptr"
; pbComputedHash : BYTE* optional, out -> "sptr"
; pcbComputedHash : DWORD* in/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 "CRYPT32.dll"
#cfunc global CryptHashCertificate2 "CryptHashCertificate2" wstr, int, sptr, var, int, var, var
; res = CryptHashCertificate2(pwszCNGHashAlgid, dwFlags, pvReserved, pbEncoded, cbEncoded, pbComputedHash, pcbComputedHash)
; pwszCNGHashAlgid : LPCWSTR -> "wstr"
; dwFlags : DWORD -> "int"
; pvReserved : void* optional -> "sptr"
; pbEncoded : BYTE* optional -> "var"
; cbEncoded : DWORD -> "int"
; pbComputedHash : BYTE* optional, out -> "var"
; pcbComputedHash : DWORD* in/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 CryptHashCertificate2 "CryptHashCertificate2" wstr, int, sptr, sptr, int, sptr, sptr
; res = CryptHashCertificate2(pwszCNGHashAlgid, dwFlags, pvReserved, varptr(pbEncoded), cbEncoded, varptr(pbComputedHash), varptr(pcbComputedHash))
; pwszCNGHashAlgid : LPCWSTR -> "wstr"
; dwFlags : DWORD -> "int"
; pvReserved : void* optional -> "sptr"
; pbEncoded : BYTE* optional -> "sptr"
; cbEncoded : DWORD -> "int"
; pbComputedHash : BYTE* optional, out -> "sptr"
; pcbComputedHash : DWORD* in/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 CryptHashCertificate2(LPCWSTR pwszCNGHashAlgid, DWORD dwFlags, void* pvReserved, BYTE* pbEncoded, DWORD cbEncoded, BYTE* pbComputedHash, DWORD* pcbComputedHash)
#uselib "CRYPT32.dll"
#cfunc global CryptHashCertificate2 "CryptHashCertificate2" wstr, int, intptr, var, int, var, var
; res = CryptHashCertificate2(pwszCNGHashAlgid, dwFlags, pvReserved, pbEncoded, cbEncoded, pbComputedHash, pcbComputedHash)
; pwszCNGHashAlgid : LPCWSTR -> "wstr"
; dwFlags : DWORD -> "int"
; pvReserved : void* optional -> "intptr"
; pbEncoded : BYTE* optional -> "var"
; cbEncoded : DWORD -> "int"
; pbComputedHash : BYTE* optional, out -> "var"
; pcbComputedHash : DWORD* in/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 CryptHashCertificate2(LPCWSTR pwszCNGHashAlgid, DWORD dwFlags, void* pvReserved, BYTE* pbEncoded, DWORD cbEncoded, BYTE* pbComputedHash, DWORD* pcbComputedHash)
#uselib "CRYPT32.dll"
#cfunc global CryptHashCertificate2 "CryptHashCertificate2" wstr, int, intptr, intptr, int, intptr, intptr
; res = CryptHashCertificate2(pwszCNGHashAlgid, dwFlags, pvReserved, varptr(pbEncoded), cbEncoded, varptr(pbComputedHash), varptr(pcbComputedHash))
; pwszCNGHashAlgid : LPCWSTR -> "wstr"
; dwFlags : DWORD -> "int"
; pvReserved : void* optional -> "intptr"
; pbEncoded : BYTE* optional -> "intptr"
; cbEncoded : DWORD -> "int"
; pbComputedHash : BYTE* optional, out -> "intptr"
; pcbComputedHash : DWORD* in/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")
	procCryptHashCertificate2 = crypt32.NewProc("CryptHashCertificate2")
)

// pwszCNGHashAlgid (LPCWSTR), dwFlags (DWORD), pvReserved (void* optional), pbEncoded (BYTE* optional), cbEncoded (DWORD), pbComputedHash (BYTE* optional, out), pcbComputedHash (DWORD* in/out)
r1, _, err := procCryptHashCertificate2.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pwszCNGHashAlgid))),
	uintptr(dwFlags),
	uintptr(pvReserved),
	uintptr(pbEncoded),
	uintptr(cbEncoded),
	uintptr(pbComputedHash),
	uintptr(pcbComputedHash),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CryptHashCertificate2(
  pwszCNGHashAlgid: PWideChar;   // LPCWSTR
  dwFlags: DWORD;   // DWORD
  pvReserved: Pointer;   // void* optional
  pbEncoded: Pointer;   // BYTE* optional
  cbEncoded: DWORD;   // DWORD
  pbComputedHash: Pointer;   // BYTE* optional, out
  pcbComputedHash: Pointer   // DWORD* in/out
): BOOL; stdcall;
  external 'CRYPT32.dll' name 'CryptHashCertificate2';

result := DllCall("CRYPT32\CryptHashCertificate2"
    , "WStr", pwszCNGHashAlgid   ; LPCWSTR
    , "UInt", dwFlags   ; DWORD
    , "Ptr", pvReserved   ; void* optional
    , "Ptr", pbEncoded   ; BYTE* optional
    , "UInt", cbEncoded   ; DWORD
    , "Ptr", pbComputedHash   ; BYTE* optional, out
    , "Ptr", pcbComputedHash   ; DWORD* in/out
    , "Int")   ; return: BOOL

●CryptHashCertificate2(pwszCNGHashAlgid, dwFlags, pvReserved, pbEncoded, cbEncoded, pbComputedHash, pcbComputedHash) = DLL("CRYPT32.dll", "bool CryptHashCertificate2(char*, dword, void*, void*, dword, void*, void*)")
# 呼び出し: CryptHashCertificate2(pwszCNGHashAlgid, dwFlags, pvReserved, pbEncoded, cbEncoded, pbComputedHash, pcbComputedHash)
# pwszCNGHashAlgid : LPCWSTR -> "char*"
# dwFlags : DWORD -> "dword"
# pvReserved : void* optional -> "void*"
# pbEncoded : BYTE* optional -> "void*"
# cbEncoded : DWORD -> "dword"
# pbComputedHash : BYTE* optional, out -> "void*"
# pcbComputedHash : DWORD* in/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)。