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CryptSignMessage

関数

データに署名してPKCS#7署名付きメッセージを生成する。

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 CryptSignMessage(
    CRYPT_SIGN_MESSAGE_PARA* pSignPara,
    BOOL fDetachedSignature,
    DWORD cToBeSigned,
    const BYTE** rgpbToBeSigned,   // optional
    DWORD* rgcbToBeSigned,
    BYTE* pbSignedBlob,   // optional
    DWORD* pcbSignedBlob
);

パラメーター

名前	型	方向
pSignPara	CRYPT_SIGN_MESSAGE_PARA*	in
fDetachedSignature	BOOL	in
cToBeSigned	DWORD	in
rgpbToBeSigned	BYTE**	inoptional
rgcbToBeSigned	DWORD*	in
pbSignedBlob	BYTE*	outoptional
pcbSignedBlob	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 CryptSignMessage(
    CRYPT_SIGN_MESSAGE_PARA* pSignPara,
    BOOL fDetachedSignature,
    DWORD cToBeSigned,
    const BYTE** rgpbToBeSigned,   // optional
    DWORD* rgcbToBeSigned,
    BYTE* pbSignedBlob,   // optional
    DWORD* pcbSignedBlob
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("CRYPT32.dll", SetLastError = true, ExactSpelling = true)]
static extern bool CryptSignMessage(
    IntPtr pSignPara,   // CRYPT_SIGN_MESSAGE_PARA*
    bool fDetachedSignature,   // BOOL
    uint cToBeSigned,   // DWORD
    IntPtr rgpbToBeSigned,   // BYTE** optional
    ref uint rgcbToBeSigned,   // DWORD*
    IntPtr pbSignedBlob,   // BYTE* optional, out
    ref uint pcbSignedBlob   // DWORD* in/out
);

<DllImport("CRYPT32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CryptSignMessage(
    pSignPara As IntPtr,   ' CRYPT_SIGN_MESSAGE_PARA*
    fDetachedSignature As Boolean,   ' BOOL
    cToBeSigned As UInteger,   ' DWORD
    rgpbToBeSigned As IntPtr,   ' BYTE** optional
    ByRef rgcbToBeSigned As UInteger,   ' DWORD*
    pbSignedBlob As IntPtr,   ' BYTE* optional, out
    ByRef pcbSignedBlob As UInteger   ' DWORD* in/out
) As Boolean
End Function

' pSignPara : CRYPT_SIGN_MESSAGE_PARA*
' fDetachedSignature : BOOL
' cToBeSigned : DWORD
' rgpbToBeSigned : BYTE** optional
' rgcbToBeSigned : DWORD*
' pbSignedBlob : BYTE* optional, out
' pcbSignedBlob : DWORD* in/out
Declare PtrSafe Function CryptSignMessage Lib "crypt32" ( _
    ByVal pSignPara As LongPtr, _
    ByVal fDetachedSignature As Long, _
    ByVal cToBeSigned As Long, _
    ByVal rgpbToBeSigned As LongPtr, _
    ByRef rgcbToBeSigned As Long, _
    ByVal pbSignedBlob As LongPtr, _
    ByRef pcbSignedBlob 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

CryptSignMessage = ctypes.windll.crypt32.CryptSignMessage
CryptSignMessage.restype = wintypes.BOOL
CryptSignMessage.argtypes = [
    ctypes.c_void_p,  # pSignPara : CRYPT_SIGN_MESSAGE_PARA*
    wintypes.BOOL,  # fDetachedSignature : BOOL
    wintypes.DWORD,  # cToBeSigned : DWORD
    ctypes.c_void_p,  # rgpbToBeSigned : BYTE** optional
    ctypes.POINTER(wintypes.DWORD),  # rgcbToBeSigned : DWORD*
    ctypes.POINTER(ctypes.c_ubyte),  # pbSignedBlob : BYTE* optional, out
    ctypes.POINTER(wintypes.DWORD),  # pcbSignedBlob : DWORD* in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CRYPT32.dll')
CryptSignMessage = Fiddle::Function.new(
  lib['CryptSignMessage'],
  [
    Fiddle::TYPE_VOIDP,  # pSignPara : CRYPT_SIGN_MESSAGE_PARA*
    Fiddle::TYPE_INT,  # fDetachedSignature : BOOL
    -Fiddle::TYPE_INT,  # cToBeSigned : DWORD
    Fiddle::TYPE_VOIDP,  # rgpbToBeSigned : BYTE** optional
    Fiddle::TYPE_VOIDP,  # rgcbToBeSigned : DWORD*
    Fiddle::TYPE_VOIDP,  # pbSignedBlob : BYTE* optional, out
    Fiddle::TYPE_VOIDP,  # pcbSignedBlob : DWORD* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "crypt32")]
extern "system" {
    fn CryptSignMessage(
        pSignPara: *mut CRYPT_SIGN_MESSAGE_PARA,  // CRYPT_SIGN_MESSAGE_PARA*
        fDetachedSignature: i32,  // BOOL
        cToBeSigned: u32,  // DWORD
        rgpbToBeSigned: *const *const u8,  // BYTE** optional
        rgcbToBeSigned: *mut u32,  // DWORD*
        pbSignedBlob: *mut u8,  // BYTE* optional, out
        pcbSignedBlob: *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 CryptSignMessage(IntPtr pSignPara, bool fDetachedSignature, uint cToBeSigned, IntPtr rgpbToBeSigned, ref uint rgcbToBeSigned, IntPtr pbSignedBlob, ref uint pcbSignedBlob);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CRYPT32_CryptSignMessage' -Namespace Win32 -PassThru
# $api::CryptSignMessage(pSignPara, fDetachedSignature, cToBeSigned, rgpbToBeSigned, rgcbToBeSigned, pbSignedBlob, pcbSignedBlob)

#uselib "CRYPT32.dll"
#func global CryptSignMessage "CryptSignMessage" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; CryptSignMessage varptr(pSignPara), fDetachedSignature, cToBeSigned, varptr(rgpbToBeSigned), varptr(rgcbToBeSigned), varptr(pbSignedBlob), varptr(pcbSignedBlob)   ; 戻り値は stat
; pSignPara : CRYPT_SIGN_MESSAGE_PARA* -> "sptr"
; fDetachedSignature : BOOL -> "sptr"
; cToBeSigned : DWORD -> "sptr"
; rgpbToBeSigned : BYTE** optional -> "sptr"
; rgcbToBeSigned : DWORD* -> "sptr"
; pbSignedBlob : BYTE* optional, out -> "sptr"
; pcbSignedBlob : 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 CryptSignMessage "CryptSignMessage" var, int, int, var, var, var, var
; res = CryptSignMessage(pSignPara, fDetachedSignature, cToBeSigned, rgpbToBeSigned, rgcbToBeSigned, pbSignedBlob, pcbSignedBlob)
; pSignPara : CRYPT_SIGN_MESSAGE_PARA* -> "var"
; fDetachedSignature : BOOL -> "int"
; cToBeSigned : DWORD -> "int"
; rgpbToBeSigned : BYTE** optional -> "var"
; rgcbToBeSigned : DWORD* -> "var"
; pbSignedBlob : BYTE* optional, out -> "var"
; pcbSignedBlob : 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 CryptSignMessage "CryptSignMessage" sptr, int, int, sptr, sptr, sptr, sptr
; res = CryptSignMessage(varptr(pSignPara), fDetachedSignature, cToBeSigned, varptr(rgpbToBeSigned), varptr(rgcbToBeSigned), varptr(pbSignedBlob), varptr(pcbSignedBlob))
; pSignPara : CRYPT_SIGN_MESSAGE_PARA* -> "sptr"
; fDetachedSignature : BOOL -> "int"
; cToBeSigned : DWORD -> "int"
; rgpbToBeSigned : BYTE** optional -> "sptr"
; rgcbToBeSigned : DWORD* -> "sptr"
; pbSignedBlob : BYTE* optional, out -> "sptr"
; pcbSignedBlob : 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 CryptSignMessage(CRYPT_SIGN_MESSAGE_PARA* pSignPara, BOOL fDetachedSignature, DWORD cToBeSigned, BYTE** rgpbToBeSigned, DWORD* rgcbToBeSigned, BYTE* pbSignedBlob, DWORD* pcbSignedBlob)
#uselib "CRYPT32.dll"
#cfunc global CryptSignMessage "CryptSignMessage" var, int, int, var, var, var, var
; res = CryptSignMessage(pSignPara, fDetachedSignature, cToBeSigned, rgpbToBeSigned, rgcbToBeSigned, pbSignedBlob, pcbSignedBlob)
; pSignPara : CRYPT_SIGN_MESSAGE_PARA* -> "var"
; fDetachedSignature : BOOL -> "int"
; cToBeSigned : DWORD -> "int"
; rgpbToBeSigned : BYTE** optional -> "var"
; rgcbToBeSigned : DWORD* -> "var"
; pbSignedBlob : BYTE* optional, out -> "var"
; pcbSignedBlob : 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 CryptSignMessage(CRYPT_SIGN_MESSAGE_PARA* pSignPara, BOOL fDetachedSignature, DWORD cToBeSigned, BYTE** rgpbToBeSigned, DWORD* rgcbToBeSigned, BYTE* pbSignedBlob, DWORD* pcbSignedBlob)
#uselib "CRYPT32.dll"
#cfunc global CryptSignMessage "CryptSignMessage" intptr, int, int, intptr, intptr, intptr, intptr
; res = CryptSignMessage(varptr(pSignPara), fDetachedSignature, cToBeSigned, varptr(rgpbToBeSigned), varptr(rgcbToBeSigned), varptr(pbSignedBlob), varptr(pcbSignedBlob))
; pSignPara : CRYPT_SIGN_MESSAGE_PARA* -> "intptr"
; fDetachedSignature : BOOL -> "int"
; cToBeSigned : DWORD -> "int"
; rgpbToBeSigned : BYTE** optional -> "intptr"
; rgcbToBeSigned : DWORD* -> "intptr"
; pbSignedBlob : BYTE* optional, out -> "intptr"
; pcbSignedBlob : 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")
	procCryptSignMessage = crypt32.NewProc("CryptSignMessage")
)

// pSignPara (CRYPT_SIGN_MESSAGE_PARA*), fDetachedSignature (BOOL), cToBeSigned (DWORD), rgpbToBeSigned (BYTE** optional), rgcbToBeSigned (DWORD*), pbSignedBlob (BYTE* optional, out), pcbSignedBlob (DWORD* in/out)
r1, _, err := procCryptSignMessage.Call(
	uintptr(pSignPara),
	uintptr(fDetachedSignature),
	uintptr(cToBeSigned),
	uintptr(rgpbToBeSigned),
	uintptr(rgcbToBeSigned),
	uintptr(pbSignedBlob),
	uintptr(pcbSignedBlob),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CryptSignMessage(
  pSignPara: Pointer;   // CRYPT_SIGN_MESSAGE_PARA*
  fDetachedSignature: BOOL;   // BOOL
  cToBeSigned: DWORD;   // DWORD
  rgpbToBeSigned: Pointer;   // BYTE** optional
  rgcbToBeSigned: Pointer;   // DWORD*
  pbSignedBlob: Pointer;   // BYTE* optional, out
  pcbSignedBlob: Pointer   // DWORD* in/out
): BOOL; stdcall;
  external 'CRYPT32.dll' name 'CryptSignMessage';

result := DllCall("CRYPT32\CryptSignMessage"
    , "Ptr", pSignPara   ; CRYPT_SIGN_MESSAGE_PARA*
    , "Int", fDetachedSignature   ; BOOL
    , "UInt", cToBeSigned   ; DWORD
    , "Ptr", rgpbToBeSigned   ; BYTE** optional
    , "Ptr", rgcbToBeSigned   ; DWORD*
    , "Ptr", pbSignedBlob   ; BYTE* optional, out
    , "Ptr", pcbSignedBlob   ; DWORD* in/out
    , "Int")   ; return: BOOL

●CryptSignMessage(pSignPara, fDetachedSignature, cToBeSigned, rgpbToBeSigned, rgcbToBeSigned, pbSignedBlob, pcbSignedBlob) = DLL("CRYPT32.dll", "bool CryptSignMessage(void*, bool, dword, void*, void*, void*, void*)")
# 呼び出し: CryptSignMessage(pSignPara, fDetachedSignature, cToBeSigned, rgpbToBeSigned, rgcbToBeSigned, pbSignedBlob, pcbSignedBlob)
# pSignPara : CRYPT_SIGN_MESSAGE_PARA* -> "void*"
# fDetachedSignature : BOOL -> "bool"
# cToBeSigned : DWORD -> "dword"
# rgpbToBeSigned : BYTE** optional -> "void*"
# rgcbToBeSigned : DWORD* -> "void*"
# pbSignedBlob : BYTE* optional, out -> "void*"
# pcbSignedBlob : 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)。