ホーム › Security.Cryptography › CryptVerifyMessageHash

CryptVerifyMessageHash

関数

ハッシュ付きメッセージのハッシュ値を検証する。

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

シグネチャ

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

BOOL CryptVerifyMessageHash(
    CRYPT_HASH_MESSAGE_PARA* pHashPara,
    BYTE* pbHashedBlob,
    DWORD cbHashedBlob,
    BYTE* pbToBeHashed,   // optional
    DWORD* pcbToBeHashed,   // optional
    BYTE* pbComputedHash,   // optional
    DWORD* pcbComputedHash   // optional
);

パラメーター

名前	型	方向
pHashPara	CRYPT_HASH_MESSAGE_PARA*	in
pbHashedBlob	BYTE*	in
cbHashedBlob	DWORD	in
pbToBeHashed	BYTE*	outoptional
pcbToBeHashed	DWORD*	inoutoptional
pbComputedHash	BYTE*	outoptional
pcbComputedHash	DWORD*	inoutoptional

戻り値の型: BOOL

各言語での呼び出し定義

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

BOOL CryptVerifyMessageHash(
    CRYPT_HASH_MESSAGE_PARA* pHashPara,
    BYTE* pbHashedBlob,
    DWORD cbHashedBlob,
    BYTE* pbToBeHashed,   // optional
    DWORD* pcbToBeHashed,   // optional
    BYTE* pbComputedHash,   // optional
    DWORD* pcbComputedHash   // optional
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("CRYPT32.dll", SetLastError = true, ExactSpelling = true)]
static extern bool CryptVerifyMessageHash(
    IntPtr pHashPara,   // CRYPT_HASH_MESSAGE_PARA*
    IntPtr pbHashedBlob,   // BYTE*
    uint cbHashedBlob,   // DWORD
    IntPtr pbToBeHashed,   // BYTE* optional, out
    IntPtr pcbToBeHashed,   // DWORD* optional, in/out
    IntPtr pbComputedHash,   // BYTE* optional, out
    IntPtr pcbComputedHash   // DWORD* optional, in/out
);

<DllImport("CRYPT32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CryptVerifyMessageHash(
    pHashPara As IntPtr,   ' CRYPT_HASH_MESSAGE_PARA*
    pbHashedBlob As IntPtr,   ' BYTE*
    cbHashedBlob As UInteger,   ' DWORD
    pbToBeHashed As IntPtr,   ' BYTE* optional, out
    pcbToBeHashed As IntPtr,   ' DWORD* optional, in/out
    pbComputedHash As IntPtr,   ' BYTE* optional, out
    pcbComputedHash As IntPtr   ' DWORD* optional, in/out
) As Boolean
End Function

' pHashPara : CRYPT_HASH_MESSAGE_PARA*
' pbHashedBlob : BYTE*
' cbHashedBlob : DWORD
' pbToBeHashed : BYTE* optional, out
' pcbToBeHashed : DWORD* optional, in/out
' pbComputedHash : BYTE* optional, out
' pcbComputedHash : DWORD* optional, in/out
Declare PtrSafe Function CryptVerifyMessageHash Lib "crypt32" ( _
    ByVal pHashPara As LongPtr, _
    ByVal pbHashedBlob As LongPtr, _
    ByVal cbHashedBlob As Long, _
    ByVal pbToBeHashed As LongPtr, _
    ByVal pcbToBeHashed As LongPtr, _
    ByVal pbComputedHash As LongPtr, _
    ByVal pcbComputedHash 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

CryptVerifyMessageHash = ctypes.windll.crypt32.CryptVerifyMessageHash
CryptVerifyMessageHash.restype = wintypes.BOOL
CryptVerifyMessageHash.argtypes = [
    ctypes.c_void_p,  # pHashPara : CRYPT_HASH_MESSAGE_PARA*
    ctypes.POINTER(ctypes.c_ubyte),  # pbHashedBlob : BYTE*
    wintypes.DWORD,  # cbHashedBlob : DWORD
    ctypes.POINTER(ctypes.c_ubyte),  # pbToBeHashed : BYTE* optional, out
    ctypes.POINTER(wintypes.DWORD),  # pcbToBeHashed : DWORD* optional, in/out
    ctypes.POINTER(ctypes.c_ubyte),  # pbComputedHash : BYTE* optional, out
    ctypes.POINTER(wintypes.DWORD),  # pcbComputedHash : DWORD* optional, in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CRYPT32.dll')
CryptVerifyMessageHash = Fiddle::Function.new(
  lib['CryptVerifyMessageHash'],
  [
    Fiddle::TYPE_VOIDP,  # pHashPara : CRYPT_HASH_MESSAGE_PARA*
    Fiddle::TYPE_VOIDP,  # pbHashedBlob : BYTE*
    -Fiddle::TYPE_INT,  # cbHashedBlob : DWORD
    Fiddle::TYPE_VOIDP,  # pbToBeHashed : BYTE* optional, out
    Fiddle::TYPE_VOIDP,  # pcbToBeHashed : DWORD* optional, in/out
    Fiddle::TYPE_VOIDP,  # pbComputedHash : BYTE* optional, out
    Fiddle::TYPE_VOIDP,  # pcbComputedHash : DWORD* optional, in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "crypt32")]
extern "system" {
    fn CryptVerifyMessageHash(
        pHashPara: *mut CRYPT_HASH_MESSAGE_PARA,  // CRYPT_HASH_MESSAGE_PARA*
        pbHashedBlob: *mut u8,  // BYTE*
        cbHashedBlob: u32,  // DWORD
        pbToBeHashed: *mut u8,  // BYTE* optional, out
        pcbToBeHashed: *mut u32,  // DWORD* optional, in/out
        pbComputedHash: *mut u8,  // BYTE* optional, out
        pcbComputedHash: *mut u32  // DWORD* optional, 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 CryptVerifyMessageHash(IntPtr pHashPara, IntPtr pbHashedBlob, uint cbHashedBlob, IntPtr pbToBeHashed, IntPtr pcbToBeHashed, IntPtr pbComputedHash, IntPtr pcbComputedHash);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CRYPT32_CryptVerifyMessageHash' -Namespace Win32 -PassThru
# $api::CryptVerifyMessageHash(pHashPara, pbHashedBlob, cbHashedBlob, pbToBeHashed, pcbToBeHashed, pbComputedHash, pcbComputedHash)

#uselib "CRYPT32.dll"
#func global CryptVerifyMessageHash "CryptVerifyMessageHash" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; CryptVerifyMessageHash varptr(pHashPara), varptr(pbHashedBlob), cbHashedBlob, varptr(pbToBeHashed), varptr(pcbToBeHashed), varptr(pbComputedHash), varptr(pcbComputedHash)   ; 戻り値は stat
; pHashPara : CRYPT_HASH_MESSAGE_PARA* -> "sptr"
; pbHashedBlob : BYTE* -> "sptr"
; cbHashedBlob : DWORD -> "sptr"
; pbToBeHashed : BYTE* optional, out -> "sptr"
; pcbToBeHashed : DWORD* optional, in/out -> "sptr"
; pbComputedHash : BYTE* optional, out -> "sptr"
; pcbComputedHash : DWORD* optional, 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 CryptVerifyMessageHash "CryptVerifyMessageHash" var, var, int, var, var, var, var
; res = CryptVerifyMessageHash(pHashPara, pbHashedBlob, cbHashedBlob, pbToBeHashed, pcbToBeHashed, pbComputedHash, pcbComputedHash)
; pHashPara : CRYPT_HASH_MESSAGE_PARA* -> "var"
; pbHashedBlob : BYTE* -> "var"
; cbHashedBlob : DWORD -> "int"
; pbToBeHashed : BYTE* optional, out -> "var"
; pcbToBeHashed : DWORD* optional, in/out -> "var"
; pbComputedHash : BYTE* optional, out -> "var"
; pcbComputedHash : DWORD* optional, 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 CryptVerifyMessageHash "CryptVerifyMessageHash" sptr, sptr, int, sptr, sptr, sptr, sptr
; res = CryptVerifyMessageHash(varptr(pHashPara), varptr(pbHashedBlob), cbHashedBlob, varptr(pbToBeHashed), varptr(pcbToBeHashed), varptr(pbComputedHash), varptr(pcbComputedHash))
; pHashPara : CRYPT_HASH_MESSAGE_PARA* -> "sptr"
; pbHashedBlob : BYTE* -> "sptr"
; cbHashedBlob : DWORD -> "int"
; pbToBeHashed : BYTE* optional, out -> "sptr"
; pcbToBeHashed : DWORD* optional, in/out -> "sptr"
; pbComputedHash : BYTE* optional, out -> "sptr"
; pcbComputedHash : DWORD* optional, 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 CryptVerifyMessageHash(CRYPT_HASH_MESSAGE_PARA* pHashPara, BYTE* pbHashedBlob, DWORD cbHashedBlob, BYTE* pbToBeHashed, DWORD* pcbToBeHashed, BYTE* pbComputedHash, DWORD* pcbComputedHash)
#uselib "CRYPT32.dll"
#cfunc global CryptVerifyMessageHash "CryptVerifyMessageHash" var, var, int, var, var, var, var
; res = CryptVerifyMessageHash(pHashPara, pbHashedBlob, cbHashedBlob, pbToBeHashed, pcbToBeHashed, pbComputedHash, pcbComputedHash)
; pHashPara : CRYPT_HASH_MESSAGE_PARA* -> "var"
; pbHashedBlob : BYTE* -> "var"
; cbHashedBlob : DWORD -> "int"
; pbToBeHashed : BYTE* optional, out -> "var"
; pcbToBeHashed : DWORD* optional, in/out -> "var"
; pbComputedHash : BYTE* optional, out -> "var"
; pcbComputedHash : DWORD* optional, 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 CryptVerifyMessageHash(CRYPT_HASH_MESSAGE_PARA* pHashPara, BYTE* pbHashedBlob, DWORD cbHashedBlob, BYTE* pbToBeHashed, DWORD* pcbToBeHashed, BYTE* pbComputedHash, DWORD* pcbComputedHash)
#uselib "CRYPT32.dll"
#cfunc global CryptVerifyMessageHash "CryptVerifyMessageHash" intptr, intptr, int, intptr, intptr, intptr, intptr
; res = CryptVerifyMessageHash(varptr(pHashPara), varptr(pbHashedBlob), cbHashedBlob, varptr(pbToBeHashed), varptr(pcbToBeHashed), varptr(pbComputedHash), varptr(pcbComputedHash))
; pHashPara : CRYPT_HASH_MESSAGE_PARA* -> "intptr"
; pbHashedBlob : BYTE* -> "intptr"
; cbHashedBlob : DWORD -> "int"
; pbToBeHashed : BYTE* optional, out -> "intptr"
; pcbToBeHashed : DWORD* optional, in/out -> "intptr"
; pbComputedHash : BYTE* optional, out -> "intptr"
; pcbComputedHash : DWORD* optional, 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")
	procCryptVerifyMessageHash = crypt32.NewProc("CryptVerifyMessageHash")
)

// pHashPara (CRYPT_HASH_MESSAGE_PARA*), pbHashedBlob (BYTE*), cbHashedBlob (DWORD), pbToBeHashed (BYTE* optional, out), pcbToBeHashed (DWORD* optional, in/out), pbComputedHash (BYTE* optional, out), pcbComputedHash (DWORD* optional, in/out)
r1, _, err := procCryptVerifyMessageHash.Call(
	uintptr(pHashPara),
	uintptr(pbHashedBlob),
	uintptr(cbHashedBlob),
	uintptr(pbToBeHashed),
	uintptr(pcbToBeHashed),
	uintptr(pbComputedHash),
	uintptr(pcbComputedHash),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CryptVerifyMessageHash(
  pHashPara: Pointer;   // CRYPT_HASH_MESSAGE_PARA*
  pbHashedBlob: Pointer;   // BYTE*
  cbHashedBlob: DWORD;   // DWORD
  pbToBeHashed: Pointer;   // BYTE* optional, out
  pcbToBeHashed: Pointer;   // DWORD* optional, in/out
  pbComputedHash: Pointer;   // BYTE* optional, out
  pcbComputedHash: Pointer   // DWORD* optional, in/out
): BOOL; stdcall;
  external 'CRYPT32.dll' name 'CryptVerifyMessageHash';

result := DllCall("CRYPT32\CryptVerifyMessageHash"
    , "Ptr", pHashPara   ; CRYPT_HASH_MESSAGE_PARA*
    , "Ptr", pbHashedBlob   ; BYTE*
    , "UInt", cbHashedBlob   ; DWORD
    , "Ptr", pbToBeHashed   ; BYTE* optional, out
    , "Ptr", pcbToBeHashed   ; DWORD* optional, in/out
    , "Ptr", pbComputedHash   ; BYTE* optional, out
    , "Ptr", pcbComputedHash   ; DWORD* optional, in/out
    , "Int")   ; return: BOOL

●CryptVerifyMessageHash(pHashPara, pbHashedBlob, cbHashedBlob, pbToBeHashed, pcbToBeHashed, pbComputedHash, pcbComputedHash) = DLL("CRYPT32.dll", "bool CryptVerifyMessageHash(void*, void*, dword, void*, void*, void*, void*)")
# 呼び出し: CryptVerifyMessageHash(pHashPara, pbHashedBlob, cbHashedBlob, pbToBeHashed, pcbToBeHashed, pbComputedHash, pcbComputedHash)
# pHashPara : CRYPT_HASH_MESSAGE_PARA* -> "void*"
# pbHashedBlob : BYTE* -> "void*"
# cbHashedBlob : DWORD -> "dword"
# pbToBeHashed : BYTE* optional, out -> "void*"
# pcbToBeHashed : DWORD* optional, in/out -> "void*"
# pbComputedHash : BYTE* optional, out -> "void*"
# pcbComputedHash : DWORD* optional, 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)。