ホーム › Security.Cryptography › CertGetIssuerCertificateFromStore

CertGetIssuerCertificateFromStore

関数

ストアからサブジェクト証明書の発行者証明書を取得する。

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>

CERT_CONTEXT* CertGetIssuerCertificateFromStore(
    HCERTSTORE hCertStore,
    const CERT_CONTEXT* pSubjectContext,
    const CERT_CONTEXT* pPrevIssuerContext,   // optional
    DWORD* pdwFlags
);

パラメーター

名前	型	方向
hCertStore	HCERTSTORE	in
pSubjectContext	CERT_CONTEXT*	in
pPrevIssuerContext	CERT_CONTEXT*	inoptional
pdwFlags	DWORD*	inout

戻り値の型: CERT_CONTEXT*

各言語での呼び出し定義

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

CERT_CONTEXT* CertGetIssuerCertificateFromStore(
    HCERTSTORE hCertStore,
    const CERT_CONTEXT* pSubjectContext,
    const CERT_CONTEXT* pPrevIssuerContext,   // optional
    DWORD* pdwFlags
);

[DllImport("CRYPT32.dll", SetLastError = true, ExactSpelling = true)]
static extern IntPtr CertGetIssuerCertificateFromStore(
    IntPtr hCertStore,   // HCERTSTORE
    IntPtr pSubjectContext,   // CERT_CONTEXT*
    IntPtr pPrevIssuerContext,   // CERT_CONTEXT* optional
    ref uint pdwFlags   // DWORD* in/out
);

<DllImport("CRYPT32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CertGetIssuerCertificateFromStore(
    hCertStore As IntPtr,   ' HCERTSTORE
    pSubjectContext As IntPtr,   ' CERT_CONTEXT*
    pPrevIssuerContext As IntPtr,   ' CERT_CONTEXT* optional
    ByRef pdwFlags As UInteger   ' DWORD* in/out
) As IntPtr
End Function

' hCertStore : HCERTSTORE
' pSubjectContext : CERT_CONTEXT*
' pPrevIssuerContext : CERT_CONTEXT* optional
' pdwFlags : DWORD* in/out
Declare PtrSafe Function CertGetIssuerCertificateFromStore Lib "crypt32" ( _
    ByVal hCertStore As LongPtr, _
    ByVal pSubjectContext As LongPtr, _
    ByVal pPrevIssuerContext As LongPtr, _
    ByRef pdwFlags As Long) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

CertGetIssuerCertificateFromStore = ctypes.windll.crypt32.CertGetIssuerCertificateFromStore
CertGetIssuerCertificateFromStore.restype = ctypes.c_void_p
CertGetIssuerCertificateFromStore.argtypes = [
    wintypes.HANDLE,  # hCertStore : HCERTSTORE
    ctypes.c_void_p,  # pSubjectContext : CERT_CONTEXT*
    ctypes.c_void_p,  # pPrevIssuerContext : CERT_CONTEXT* optional
    ctypes.POINTER(wintypes.DWORD),  # pdwFlags : DWORD* in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CRYPT32.dll')
CertGetIssuerCertificateFromStore = Fiddle::Function.new(
  lib['CertGetIssuerCertificateFromStore'],
  [
    Fiddle::TYPE_VOIDP,  # hCertStore : HCERTSTORE
    Fiddle::TYPE_VOIDP,  # pSubjectContext : CERT_CONTEXT*
    Fiddle::TYPE_VOIDP,  # pPrevIssuerContext : CERT_CONTEXT* optional
    Fiddle::TYPE_VOIDP,  # pdwFlags : DWORD* in/out
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "crypt32")]
extern "system" {
    fn CertGetIssuerCertificateFromStore(
        hCertStore: *mut core::ffi::c_void,  // HCERTSTORE
        pSubjectContext: *const CERT_CONTEXT,  // CERT_CONTEXT*
        pPrevIssuerContext: *const CERT_CONTEXT,  // CERT_CONTEXT* optional
        pdwFlags: *mut u32  // DWORD* in/out
    ) -> *mut CERT_CONTEXT;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("CRYPT32.dll", SetLastError = true)]
public static extern IntPtr CertGetIssuerCertificateFromStore(IntPtr hCertStore, IntPtr pSubjectContext, IntPtr pPrevIssuerContext, ref uint pdwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CRYPT32_CertGetIssuerCertificateFromStore' -Namespace Win32 -PassThru
# $api::CertGetIssuerCertificateFromStore(hCertStore, pSubjectContext, pPrevIssuerContext, pdwFlags)

#uselib "CRYPT32.dll"
#func global CertGetIssuerCertificateFromStore "CertGetIssuerCertificateFromStore" sptr, sptr, sptr, sptr
; CertGetIssuerCertificateFromStore hCertStore, varptr(pSubjectContext), varptr(pPrevIssuerContext), varptr(pdwFlags)   ; 戻り値は stat
; hCertStore : HCERTSTORE -> "sptr"
; pSubjectContext : CERT_CONTEXT* -> "sptr"
; pPrevIssuerContext : CERT_CONTEXT* optional -> "sptr"
; pdwFlags : 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 CertGetIssuerCertificateFromStore "CertGetIssuerCertificateFromStore" sptr, var, var, var
; res = CertGetIssuerCertificateFromStore(hCertStore, pSubjectContext, pPrevIssuerContext, pdwFlags)
; hCertStore : HCERTSTORE -> "sptr"
; pSubjectContext : CERT_CONTEXT* -> "var"
; pPrevIssuerContext : CERT_CONTEXT* optional -> "var"
; pdwFlags : 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 CertGetIssuerCertificateFromStore "CertGetIssuerCertificateFromStore" sptr, sptr, sptr, sptr
; res = CertGetIssuerCertificateFromStore(hCertStore, varptr(pSubjectContext), varptr(pPrevIssuerContext), varptr(pdwFlags))
; hCertStore : HCERTSTORE -> "sptr"
; pSubjectContext : CERT_CONTEXT* -> "sptr"
; pPrevIssuerContext : CERT_CONTEXT* optional -> "sptr"
; pdwFlags : 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:

; CERT_CONTEXT* CertGetIssuerCertificateFromStore(HCERTSTORE hCertStore, CERT_CONTEXT* pSubjectContext, CERT_CONTEXT* pPrevIssuerContext, DWORD* pdwFlags)
#uselib "CRYPT32.dll"
#cfunc global CertGetIssuerCertificateFromStore "CertGetIssuerCertificateFromStore" intptr, var, var, var
; res = CertGetIssuerCertificateFromStore(hCertStore, pSubjectContext, pPrevIssuerContext, pdwFlags)
; hCertStore : HCERTSTORE -> "intptr"
; pSubjectContext : CERT_CONTEXT* -> "var"
; pPrevIssuerContext : CERT_CONTEXT* optional -> "var"
; pdwFlags : 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。; CERT_CONTEXT* CertGetIssuerCertificateFromStore(HCERTSTORE hCertStore, CERT_CONTEXT* pSubjectContext, CERT_CONTEXT* pPrevIssuerContext, DWORD* pdwFlags)
#uselib "CRYPT32.dll"
#cfunc global CertGetIssuerCertificateFromStore "CertGetIssuerCertificateFromStore" intptr, intptr, intptr, intptr
; res = CertGetIssuerCertificateFromStore(hCertStore, varptr(pSubjectContext), varptr(pPrevIssuerContext), varptr(pdwFlags))
; hCertStore : HCERTSTORE -> "intptr"
; pSubjectContext : CERT_CONTEXT* -> "intptr"
; pPrevIssuerContext : CERT_CONTEXT* optional -> "intptr"
; pdwFlags : 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")
	procCertGetIssuerCertificateFromStore = crypt32.NewProc("CertGetIssuerCertificateFromStore")
)

// hCertStore (HCERTSTORE), pSubjectContext (CERT_CONTEXT*), pPrevIssuerContext (CERT_CONTEXT* optional), pdwFlags (DWORD* in/out)
r1, _, err := procCertGetIssuerCertificateFromStore.Call(
	uintptr(hCertStore),
	uintptr(pSubjectContext),
	uintptr(pPrevIssuerContext),
	uintptr(pdwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // CERT_CONTEXT*

function CertGetIssuerCertificateFromStore(
  hCertStore: THandle;   // HCERTSTORE
  pSubjectContext: Pointer;   // CERT_CONTEXT*
  pPrevIssuerContext: Pointer;   // CERT_CONTEXT* optional
  pdwFlags: Pointer   // DWORD* in/out
): Pointer; stdcall;
  external 'CRYPT32.dll' name 'CertGetIssuerCertificateFromStore';

result := DllCall("CRYPT32\CertGetIssuerCertificateFromStore"
    , "Ptr", hCertStore   ; HCERTSTORE
    , "Ptr", pSubjectContext   ; CERT_CONTEXT*
    , "Ptr", pPrevIssuerContext   ; CERT_CONTEXT* optional
    , "Ptr", pdwFlags   ; DWORD* in/out
    , "Ptr")   ; return: CERT_CONTEXT*

●CertGetIssuerCertificateFromStore(hCertStore, pSubjectContext, pPrevIssuerContext, pdwFlags) = DLL("CRYPT32.dll", "void* CertGetIssuerCertificateFromStore(void*, void*, void*, void*)")
# 呼び出し: CertGetIssuerCertificateFromStore(hCertStore, pSubjectContext, pPrevIssuerContext, pdwFlags)
# hCertStore : HCERTSTORE -> "void*"
# pSubjectContext : CERT_CONTEXT* -> "void*"
# pPrevIssuerContext : CERT_CONTEXT* optional -> "void*"
# pdwFlags : 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)。