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CryptVerifyDetachedMessageHash

関数

分離ハッシュと元データを用いてハッシュを検証する。

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 CryptVerifyDetachedMessageHash(
    CRYPT_HASH_MESSAGE_PARA* pHashPara,
    BYTE* pbDetachedHashBlob,
    DWORD cbDetachedHashBlob,
    DWORD cToBeHashed,
    const BYTE** rgpbToBeHashed,
    DWORD* rgcbToBeHashed,
    BYTE* pbComputedHash,   // optional
    DWORD* pcbComputedHash   // optional
);

パラメーター

名前	型	方向
pHashPara	CRYPT_HASH_MESSAGE_PARA*	in
pbDetachedHashBlob	BYTE*	in
cbDetachedHashBlob	DWORD	in
cToBeHashed	DWORD	in
rgpbToBeHashed	BYTE**	in
rgcbToBeHashed	DWORD*	in
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 CryptVerifyDetachedMessageHash(
    CRYPT_HASH_MESSAGE_PARA* pHashPara,
    BYTE* pbDetachedHashBlob,
    DWORD cbDetachedHashBlob,
    DWORD cToBeHashed,
    const BYTE** rgpbToBeHashed,
    DWORD* rgcbToBeHashed,
    BYTE* pbComputedHash,   // optional
    DWORD* pcbComputedHash   // optional
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("CRYPT32.dll", SetLastError = true, ExactSpelling = true)]
static extern bool CryptVerifyDetachedMessageHash(
    IntPtr pHashPara,   // CRYPT_HASH_MESSAGE_PARA*
    IntPtr pbDetachedHashBlob,   // BYTE*
    uint cbDetachedHashBlob,   // DWORD
    uint cToBeHashed,   // DWORD
    IntPtr rgpbToBeHashed,   // BYTE**
    ref uint rgcbToBeHashed,   // DWORD*
    IntPtr pbComputedHash,   // BYTE* optional, out
    IntPtr pcbComputedHash   // DWORD* optional, in/out
);

<DllImport("CRYPT32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CryptVerifyDetachedMessageHash(
    pHashPara As IntPtr,   ' CRYPT_HASH_MESSAGE_PARA*
    pbDetachedHashBlob As IntPtr,   ' BYTE*
    cbDetachedHashBlob As UInteger,   ' DWORD
    cToBeHashed As UInteger,   ' DWORD
    rgpbToBeHashed As IntPtr,   ' BYTE**
    ByRef rgcbToBeHashed As UInteger,   ' DWORD*
    pbComputedHash As IntPtr,   ' BYTE* optional, out
    pcbComputedHash As IntPtr   ' DWORD* optional, in/out
) As Boolean
End Function

' pHashPara : CRYPT_HASH_MESSAGE_PARA*
' pbDetachedHashBlob : BYTE*
' cbDetachedHashBlob : DWORD
' cToBeHashed : DWORD
' rgpbToBeHashed : BYTE**
' rgcbToBeHashed : DWORD*
' pbComputedHash : BYTE* optional, out
' pcbComputedHash : DWORD* optional, in/out
Declare PtrSafe Function CryptVerifyDetachedMessageHash Lib "crypt32" ( _
    ByVal pHashPara As LongPtr, _
    ByVal pbDetachedHashBlob As LongPtr, _
    ByVal cbDetachedHashBlob As Long, _
    ByVal cToBeHashed As Long, _
    ByVal rgpbToBeHashed As LongPtr, _
    ByRef rgcbToBeHashed As Long, _
    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

CryptVerifyDetachedMessageHash = ctypes.windll.crypt32.CryptVerifyDetachedMessageHash
CryptVerifyDetachedMessageHash.restype = wintypes.BOOL
CryptVerifyDetachedMessageHash.argtypes = [
    ctypes.c_void_p,  # pHashPara : CRYPT_HASH_MESSAGE_PARA*
    ctypes.POINTER(ctypes.c_ubyte),  # pbDetachedHashBlob : BYTE*
    wintypes.DWORD,  # cbDetachedHashBlob : DWORD
    wintypes.DWORD,  # cToBeHashed : DWORD
    ctypes.c_void_p,  # rgpbToBeHashed : BYTE**
    ctypes.POINTER(wintypes.DWORD),  # rgcbToBeHashed : DWORD*
    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')
CryptVerifyDetachedMessageHash = Fiddle::Function.new(
  lib['CryptVerifyDetachedMessageHash'],
  [
    Fiddle::TYPE_VOIDP,  # pHashPara : CRYPT_HASH_MESSAGE_PARA*
    Fiddle::TYPE_VOIDP,  # pbDetachedHashBlob : BYTE*
    -Fiddle::TYPE_INT,  # cbDetachedHashBlob : DWORD
    -Fiddle::TYPE_INT,  # cToBeHashed : DWORD
    Fiddle::TYPE_VOIDP,  # rgpbToBeHashed : BYTE**
    Fiddle::TYPE_VOIDP,  # rgcbToBeHashed : DWORD*
    Fiddle::TYPE_VOIDP,  # pbComputedHash : BYTE* optional, out
    Fiddle::TYPE_VOIDP,  # pcbComputedHash : DWORD* optional, in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "crypt32")]
extern "system" {
    fn CryptVerifyDetachedMessageHash(
        pHashPara: *mut CRYPT_HASH_MESSAGE_PARA,  // CRYPT_HASH_MESSAGE_PARA*
        pbDetachedHashBlob: *mut u8,  // BYTE*
        cbDetachedHashBlob: u32,  // DWORD
        cToBeHashed: u32,  // DWORD
        rgpbToBeHashed: *const *const u8,  // BYTE**
        rgcbToBeHashed: *mut u32,  // DWORD*
        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 CryptVerifyDetachedMessageHash(IntPtr pHashPara, IntPtr pbDetachedHashBlob, uint cbDetachedHashBlob, uint cToBeHashed, IntPtr rgpbToBeHashed, ref uint rgcbToBeHashed, IntPtr pbComputedHash, IntPtr pcbComputedHash);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CRYPT32_CryptVerifyDetachedMessageHash' -Namespace Win32 -PassThru
# $api::CryptVerifyDetachedMessageHash(pHashPara, pbDetachedHashBlob, cbDetachedHashBlob, cToBeHashed, rgpbToBeHashed, rgcbToBeHashed, pbComputedHash, pcbComputedHash)

#uselib "CRYPT32.dll"
#func global CryptVerifyDetachedMessageHash "CryptVerifyDetachedMessageHash" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; CryptVerifyDetachedMessageHash varptr(pHashPara), varptr(pbDetachedHashBlob), cbDetachedHashBlob, cToBeHashed, varptr(rgpbToBeHashed), varptr(rgcbToBeHashed), varptr(pbComputedHash), varptr(pcbComputedHash)   ; 戻り値は stat
; pHashPara : CRYPT_HASH_MESSAGE_PARA* -> "sptr"
; pbDetachedHashBlob : BYTE* -> "sptr"
; cbDetachedHashBlob : DWORD -> "sptr"
; cToBeHashed : DWORD -> "sptr"
; rgpbToBeHashed : BYTE** -> "sptr"
; rgcbToBeHashed : DWORD* -> "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 CryptVerifyDetachedMessageHash "CryptVerifyDetachedMessageHash" var, var, int, int, var, var, var, var
; res = CryptVerifyDetachedMessageHash(pHashPara, pbDetachedHashBlob, cbDetachedHashBlob, cToBeHashed, rgpbToBeHashed, rgcbToBeHashed, pbComputedHash, pcbComputedHash)
; pHashPara : CRYPT_HASH_MESSAGE_PARA* -> "var"
; pbDetachedHashBlob : BYTE* -> "var"
; cbDetachedHashBlob : DWORD -> "int"
; cToBeHashed : DWORD -> "int"
; rgpbToBeHashed : BYTE** -> "var"
; rgcbToBeHashed : DWORD* -> "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 CryptVerifyDetachedMessageHash "CryptVerifyDetachedMessageHash" sptr, sptr, int, int, sptr, sptr, sptr, sptr
; res = CryptVerifyDetachedMessageHash(varptr(pHashPara), varptr(pbDetachedHashBlob), cbDetachedHashBlob, cToBeHashed, varptr(rgpbToBeHashed), varptr(rgcbToBeHashed), varptr(pbComputedHash), varptr(pcbComputedHash))
; pHashPara : CRYPT_HASH_MESSAGE_PARA* -> "sptr"
; pbDetachedHashBlob : BYTE* -> "sptr"
; cbDetachedHashBlob : DWORD -> "int"
; cToBeHashed : DWORD -> "int"
; rgpbToBeHashed : BYTE** -> "sptr"
; rgcbToBeHashed : DWORD* -> "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 CryptVerifyDetachedMessageHash(CRYPT_HASH_MESSAGE_PARA* pHashPara, BYTE* pbDetachedHashBlob, DWORD cbDetachedHashBlob, DWORD cToBeHashed, BYTE** rgpbToBeHashed, DWORD* rgcbToBeHashed, BYTE* pbComputedHash, DWORD* pcbComputedHash)
#uselib "CRYPT32.dll"
#cfunc global CryptVerifyDetachedMessageHash "CryptVerifyDetachedMessageHash" var, var, int, int, var, var, var, var
; res = CryptVerifyDetachedMessageHash(pHashPara, pbDetachedHashBlob, cbDetachedHashBlob, cToBeHashed, rgpbToBeHashed, rgcbToBeHashed, pbComputedHash, pcbComputedHash)
; pHashPara : CRYPT_HASH_MESSAGE_PARA* -> "var"
; pbDetachedHashBlob : BYTE* -> "var"
; cbDetachedHashBlob : DWORD -> "int"
; cToBeHashed : DWORD -> "int"
; rgpbToBeHashed : BYTE** -> "var"
; rgcbToBeHashed : DWORD* -> "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 CryptVerifyDetachedMessageHash(CRYPT_HASH_MESSAGE_PARA* pHashPara, BYTE* pbDetachedHashBlob, DWORD cbDetachedHashBlob, DWORD cToBeHashed, BYTE** rgpbToBeHashed, DWORD* rgcbToBeHashed, BYTE* pbComputedHash, DWORD* pcbComputedHash)
#uselib "CRYPT32.dll"
#cfunc global CryptVerifyDetachedMessageHash "CryptVerifyDetachedMessageHash" intptr, intptr, int, int, intptr, intptr, intptr, intptr
; res = CryptVerifyDetachedMessageHash(varptr(pHashPara), varptr(pbDetachedHashBlob), cbDetachedHashBlob, cToBeHashed, varptr(rgpbToBeHashed), varptr(rgcbToBeHashed), varptr(pbComputedHash), varptr(pcbComputedHash))
; pHashPara : CRYPT_HASH_MESSAGE_PARA* -> "intptr"
; pbDetachedHashBlob : BYTE* -> "intptr"
; cbDetachedHashBlob : DWORD -> "int"
; cToBeHashed : DWORD -> "int"
; rgpbToBeHashed : BYTE** -> "intptr"
; rgcbToBeHashed : DWORD* -> "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")
	procCryptVerifyDetachedMessageHash = crypt32.NewProc("CryptVerifyDetachedMessageHash")
)

// pHashPara (CRYPT_HASH_MESSAGE_PARA*), pbDetachedHashBlob (BYTE*), cbDetachedHashBlob (DWORD), cToBeHashed (DWORD), rgpbToBeHashed (BYTE**), rgcbToBeHashed (DWORD*), pbComputedHash (BYTE* optional, out), pcbComputedHash (DWORD* optional, in/out)
r1, _, err := procCryptVerifyDetachedMessageHash.Call(
	uintptr(pHashPara),
	uintptr(pbDetachedHashBlob),
	uintptr(cbDetachedHashBlob),
	uintptr(cToBeHashed),
	uintptr(rgpbToBeHashed),
	uintptr(rgcbToBeHashed),
	uintptr(pbComputedHash),
	uintptr(pcbComputedHash),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CryptVerifyDetachedMessageHash(
  pHashPara: Pointer;   // CRYPT_HASH_MESSAGE_PARA*
  pbDetachedHashBlob: Pointer;   // BYTE*
  cbDetachedHashBlob: DWORD;   // DWORD
  cToBeHashed: DWORD;   // DWORD
  rgpbToBeHashed: Pointer;   // BYTE**
  rgcbToBeHashed: Pointer;   // DWORD*
  pbComputedHash: Pointer;   // BYTE* optional, out
  pcbComputedHash: Pointer   // DWORD* optional, in/out
): BOOL; stdcall;
  external 'CRYPT32.dll' name 'CryptVerifyDetachedMessageHash';

result := DllCall("CRYPT32\CryptVerifyDetachedMessageHash"
    , "Ptr", pHashPara   ; CRYPT_HASH_MESSAGE_PARA*
    , "Ptr", pbDetachedHashBlob   ; BYTE*
    , "UInt", cbDetachedHashBlob   ; DWORD
    , "UInt", cToBeHashed   ; DWORD
    , "Ptr", rgpbToBeHashed   ; BYTE**
    , "Ptr", rgcbToBeHashed   ; DWORD*
    , "Ptr", pbComputedHash   ; BYTE* optional, out
    , "Ptr", pcbComputedHash   ; DWORD* optional, in/out
    , "Int")   ; return: BOOL

●CryptVerifyDetachedMessageHash(pHashPara, pbDetachedHashBlob, cbDetachedHashBlob, cToBeHashed, rgpbToBeHashed, rgcbToBeHashed, pbComputedHash, pcbComputedHash) = DLL("CRYPT32.dll", "bool CryptVerifyDetachedMessageHash(void*, void*, dword, dword, void*, void*, void*, void*)")
# 呼び出し: CryptVerifyDetachedMessageHash(pHashPara, pbDetachedHashBlob, cbDetachedHashBlob, cToBeHashed, rgpbToBeHashed, rgcbToBeHashed, pbComputedHash, pcbComputedHash)
# pHashPara : CRYPT_HASH_MESSAGE_PARA* -> "void*"
# pbDetachedHashBlob : BYTE* -> "void*"
# cbDetachedHashBlob : DWORD -> "dword"
# cToBeHashed : DWORD -> "dword"
# rgpbToBeHashed : BYTE** -> "void*"
# rgcbToBeHashed : DWORD* -> "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)。