ホーム › Security.Cryptography › CertOIDToAlgId

CertOIDToAlgId

関数

OID文字列をアルゴリズム識別子(ALG_ID)に変換する。

DLLCRYPT32.dll呼出規約winapi対応OSWindows XP 以降

シグネチャ

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

DWORD CertOIDToAlgId(
    LPCSTR pszObjId
);

パラメーター

名前	型	方向
pszObjId	LPCSTR	in

戻り値の型: DWORD

各言語での呼び出し定義

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

DWORD CertOIDToAlgId(
    LPCSTR pszObjId
);

[DllImport("CRYPT32.dll", ExactSpelling = true)]
static extern uint CertOIDToAlgId(
    [MarshalAs(UnmanagedType.LPStr)] string pszObjId   // LPCSTR
);

<DllImport("CRYPT32.dll", ExactSpelling:=True)>
Public Shared Function CertOIDToAlgId(
    <MarshalAs(UnmanagedType.LPStr)> pszObjId As String   ' LPCSTR
) As UInteger
End Function

' pszObjId : LPCSTR
Declare PtrSafe Function CertOIDToAlgId Lib "crypt32" ( _
    ByVal pszObjId As String) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

CertOIDToAlgId = ctypes.windll.crypt32.CertOIDToAlgId
CertOIDToAlgId.restype = wintypes.DWORD
CertOIDToAlgId.argtypes = [
    wintypes.LPCSTR,  # pszObjId : LPCSTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CRYPT32.dll')
CertOIDToAlgId = Fiddle::Function.new(
  lib['CertOIDToAlgId'],
  [
    Fiddle::TYPE_VOIDP,  # pszObjId : LPCSTR
  ],
  -Fiddle::TYPE_INT)

#[link(name = "crypt32")]
extern "system" {
    fn CertOIDToAlgId(
        pszObjId: *const u8  // LPCSTR
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("CRYPT32.dll")]
public static extern uint CertOIDToAlgId([MarshalAs(UnmanagedType.LPStr)] string pszObjId);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CRYPT32_CertOIDToAlgId' -Namespace Win32 -PassThru
# $api::CertOIDToAlgId(pszObjId)

#uselib "CRYPT32.dll"
#func global CertOIDToAlgId "CertOIDToAlgId" sptr
; CertOIDToAlgId pszObjId   ; 戻り値は stat
; pszObjId : LPCSTR -> "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。

#uselib "CRYPT32.dll"
#cfunc global CertOIDToAlgId "CertOIDToAlgId" str
; res = CertOIDToAlgId(pszObjId)
; pszObjId : LPCSTR -> "str"

; DWORD CertOIDToAlgId(LPCSTR pszObjId)
#uselib "CRYPT32.dll"
#cfunc global CertOIDToAlgId "CertOIDToAlgId" str
; res = CertOIDToAlgId(pszObjId)
; pszObjId : LPCSTR -> "str"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	crypt32 = windows.NewLazySystemDLL("CRYPT32.dll")
	procCertOIDToAlgId = crypt32.NewProc("CertOIDToAlgId")
)

// pszObjId (LPCSTR)
r1, _, err := procCertOIDToAlgId.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pszObjId))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function CertOIDToAlgId(
  pszObjId: PAnsiChar   // LPCSTR
): DWORD; stdcall;
  external 'CRYPT32.dll' name 'CertOIDToAlgId';

result := DllCall("CRYPT32\CertOIDToAlgId"
    , "AStr", pszObjId   ; LPCSTR
    , "UInt")   ; return: DWORD

●CertOIDToAlgId(pszObjId) = DLL("CRYPT32.dll", "dword CertOIDToAlgId(char*)")
# 呼び出し: CertOIDToAlgId(pszObjId)
# pszObjId : LPCSTR -> "char*"
# 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)。