ホーム › Security.Cryptography › CryptEncodeObjectEx

CryptEncodeObjectEx

関数

構造体を指定エンコード形式に符号化する拡張版関数。

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 CryptEncodeObjectEx(
    CERT_QUERY_ENCODING_TYPE dwCertEncodingType,
    LPCSTR lpszStructType,
    const void* pvStructInfo,
    CRYPT_ENCODE_OBJECT_FLAGS dwFlags,
    CRYPT_ENCODE_PARA* pEncodePara,   // optional
    void* pvEncoded,   // optional
    DWORD* pcbEncoded
);

パラメーター

名前	型	方向
dwCertEncodingType	CERT_QUERY_ENCODING_TYPE	in
lpszStructType	LPCSTR	in
pvStructInfo	void*	in
dwFlags	CRYPT_ENCODE_OBJECT_FLAGS	in
pEncodePara	CRYPT_ENCODE_PARA*	inoptional
pvEncoded	void*	outoptional
pcbEncoded	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 CryptEncodeObjectEx(
    CERT_QUERY_ENCODING_TYPE dwCertEncodingType,
    LPCSTR lpszStructType,
    const void* pvStructInfo,
    CRYPT_ENCODE_OBJECT_FLAGS dwFlags,
    CRYPT_ENCODE_PARA* pEncodePara,   // optional
    void* pvEncoded,   // optional
    DWORD* pcbEncoded
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("CRYPT32.dll", SetLastError = true, ExactSpelling = true)]
static extern bool CryptEncodeObjectEx(
    uint dwCertEncodingType,   // CERT_QUERY_ENCODING_TYPE
    [MarshalAs(UnmanagedType.LPStr)] string lpszStructType,   // LPCSTR
    IntPtr pvStructInfo,   // void*
    uint dwFlags,   // CRYPT_ENCODE_OBJECT_FLAGS
    IntPtr pEncodePara,   // CRYPT_ENCODE_PARA* optional
    IntPtr pvEncoded,   // void* optional, out
    ref uint pcbEncoded   // DWORD* in/out
);

<DllImport("CRYPT32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CryptEncodeObjectEx(
    dwCertEncodingType As UInteger,   ' CERT_QUERY_ENCODING_TYPE
    <MarshalAs(UnmanagedType.LPStr)> lpszStructType As String,   ' LPCSTR
    pvStructInfo As IntPtr,   ' void*
    dwFlags As UInteger,   ' CRYPT_ENCODE_OBJECT_FLAGS
    pEncodePara As IntPtr,   ' CRYPT_ENCODE_PARA* optional
    pvEncoded As IntPtr,   ' void* optional, out
    ByRef pcbEncoded As UInteger   ' DWORD* in/out
) As Boolean
End Function

' dwCertEncodingType : CERT_QUERY_ENCODING_TYPE
' lpszStructType : LPCSTR
' pvStructInfo : void*
' dwFlags : CRYPT_ENCODE_OBJECT_FLAGS
' pEncodePara : CRYPT_ENCODE_PARA* optional
' pvEncoded : void* optional, out
' pcbEncoded : DWORD* in/out
Declare PtrSafe Function CryptEncodeObjectEx Lib "crypt32" ( _
    ByVal dwCertEncodingType As Long, _
    ByVal lpszStructType As String, _
    ByVal pvStructInfo As LongPtr, _
    ByVal dwFlags As Long, _
    ByVal pEncodePara As LongPtr, _
    ByVal pvEncoded As LongPtr, _
    ByRef pcbEncoded 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

CryptEncodeObjectEx = ctypes.windll.crypt32.CryptEncodeObjectEx
CryptEncodeObjectEx.restype = wintypes.BOOL
CryptEncodeObjectEx.argtypes = [
    wintypes.DWORD,  # dwCertEncodingType : CERT_QUERY_ENCODING_TYPE
    wintypes.LPCSTR,  # lpszStructType : LPCSTR
    ctypes.POINTER(None),  # pvStructInfo : void*
    wintypes.DWORD,  # dwFlags : CRYPT_ENCODE_OBJECT_FLAGS
    ctypes.c_void_p,  # pEncodePara : CRYPT_ENCODE_PARA* optional
    ctypes.POINTER(None),  # pvEncoded : void* optional, out
    ctypes.POINTER(wintypes.DWORD),  # pcbEncoded : DWORD* in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CRYPT32.dll')
CryptEncodeObjectEx = Fiddle::Function.new(
  lib['CryptEncodeObjectEx'],
  [
    -Fiddle::TYPE_INT,  # dwCertEncodingType : CERT_QUERY_ENCODING_TYPE
    Fiddle::TYPE_VOIDP,  # lpszStructType : LPCSTR
    Fiddle::TYPE_VOIDP,  # pvStructInfo : void*
    -Fiddle::TYPE_INT,  # dwFlags : CRYPT_ENCODE_OBJECT_FLAGS
    Fiddle::TYPE_VOIDP,  # pEncodePara : CRYPT_ENCODE_PARA* optional
    Fiddle::TYPE_VOIDP,  # pvEncoded : void* optional, out
    Fiddle::TYPE_VOIDP,  # pcbEncoded : DWORD* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "crypt32")]
extern "system" {
    fn CryptEncodeObjectEx(
        dwCertEncodingType: u32,  // CERT_QUERY_ENCODING_TYPE
        lpszStructType: *const u8,  // LPCSTR
        pvStructInfo: *const (),  // void*
        dwFlags: u32,  // CRYPT_ENCODE_OBJECT_FLAGS
        pEncodePara: *mut CRYPT_ENCODE_PARA,  // CRYPT_ENCODE_PARA* optional
        pvEncoded: *mut (),  // void* optional, out
        pcbEncoded: *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 CryptEncodeObjectEx(uint dwCertEncodingType, [MarshalAs(UnmanagedType.LPStr)] string lpszStructType, IntPtr pvStructInfo, uint dwFlags, IntPtr pEncodePara, IntPtr pvEncoded, ref uint pcbEncoded);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CRYPT32_CryptEncodeObjectEx' -Namespace Win32 -PassThru
# $api::CryptEncodeObjectEx(dwCertEncodingType, lpszStructType, pvStructInfo, dwFlags, pEncodePara, pvEncoded, pcbEncoded)

#uselib "CRYPT32.dll"
#func global CryptEncodeObjectEx "CryptEncodeObjectEx" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; CryptEncodeObjectEx dwCertEncodingType, lpszStructType, pvStructInfo, dwFlags, varptr(pEncodePara), pvEncoded, varptr(pcbEncoded)   ; 戻り値は stat
; dwCertEncodingType : CERT_QUERY_ENCODING_TYPE -> "sptr"
; lpszStructType : LPCSTR -> "sptr"
; pvStructInfo : void* -> "sptr"
; dwFlags : CRYPT_ENCODE_OBJECT_FLAGS -> "sptr"
; pEncodePara : CRYPT_ENCODE_PARA* optional -> "sptr"
; pvEncoded : void* optional, out -> "sptr"
; pcbEncoded : 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 CryptEncodeObjectEx "CryptEncodeObjectEx" int, str, sptr, int, var, sptr, var
; res = CryptEncodeObjectEx(dwCertEncodingType, lpszStructType, pvStructInfo, dwFlags, pEncodePara, pvEncoded, pcbEncoded)
; dwCertEncodingType : CERT_QUERY_ENCODING_TYPE -> "int"
; lpszStructType : LPCSTR -> "str"
; pvStructInfo : void* -> "sptr"
; dwFlags : CRYPT_ENCODE_OBJECT_FLAGS -> "int"
; pEncodePara : CRYPT_ENCODE_PARA* optional -> "var"
; pvEncoded : void* optional, out -> "sptr"
; pcbEncoded : 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 CryptEncodeObjectEx "CryptEncodeObjectEx" int, str, sptr, int, sptr, sptr, sptr
; res = CryptEncodeObjectEx(dwCertEncodingType, lpszStructType, pvStructInfo, dwFlags, varptr(pEncodePara), pvEncoded, varptr(pcbEncoded))
; dwCertEncodingType : CERT_QUERY_ENCODING_TYPE -> "int"
; lpszStructType : LPCSTR -> "str"
; pvStructInfo : void* -> "sptr"
; dwFlags : CRYPT_ENCODE_OBJECT_FLAGS -> "int"
; pEncodePara : CRYPT_ENCODE_PARA* optional -> "sptr"
; pvEncoded : void* optional, out -> "sptr"
; pcbEncoded : 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 CryptEncodeObjectEx(CERT_QUERY_ENCODING_TYPE dwCertEncodingType, LPCSTR lpszStructType, void* pvStructInfo, CRYPT_ENCODE_OBJECT_FLAGS dwFlags, CRYPT_ENCODE_PARA* pEncodePara, void* pvEncoded, DWORD* pcbEncoded)
#uselib "CRYPT32.dll"
#cfunc global CryptEncodeObjectEx "CryptEncodeObjectEx" int, str, intptr, int, var, intptr, var
; res = CryptEncodeObjectEx(dwCertEncodingType, lpszStructType, pvStructInfo, dwFlags, pEncodePara, pvEncoded, pcbEncoded)
; dwCertEncodingType : CERT_QUERY_ENCODING_TYPE -> "int"
; lpszStructType : LPCSTR -> "str"
; pvStructInfo : void* -> "intptr"
; dwFlags : CRYPT_ENCODE_OBJECT_FLAGS -> "int"
; pEncodePara : CRYPT_ENCODE_PARA* optional -> "var"
; pvEncoded : void* optional, out -> "intptr"
; pcbEncoded : 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 CryptEncodeObjectEx(CERT_QUERY_ENCODING_TYPE dwCertEncodingType, LPCSTR lpszStructType, void* pvStructInfo, CRYPT_ENCODE_OBJECT_FLAGS dwFlags, CRYPT_ENCODE_PARA* pEncodePara, void* pvEncoded, DWORD* pcbEncoded)
#uselib "CRYPT32.dll"
#cfunc global CryptEncodeObjectEx "CryptEncodeObjectEx" int, str, intptr, int, intptr, intptr, intptr
; res = CryptEncodeObjectEx(dwCertEncodingType, lpszStructType, pvStructInfo, dwFlags, varptr(pEncodePara), pvEncoded, varptr(pcbEncoded))
; dwCertEncodingType : CERT_QUERY_ENCODING_TYPE -> "int"
; lpszStructType : LPCSTR -> "str"
; pvStructInfo : void* -> "intptr"
; dwFlags : CRYPT_ENCODE_OBJECT_FLAGS -> "int"
; pEncodePara : CRYPT_ENCODE_PARA* optional -> "intptr"
; pvEncoded : void* optional, out -> "intptr"
; pcbEncoded : 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")
	procCryptEncodeObjectEx = crypt32.NewProc("CryptEncodeObjectEx")
)

// dwCertEncodingType (CERT_QUERY_ENCODING_TYPE), lpszStructType (LPCSTR), pvStructInfo (void*), dwFlags (CRYPT_ENCODE_OBJECT_FLAGS), pEncodePara (CRYPT_ENCODE_PARA* optional), pvEncoded (void* optional, out), pcbEncoded (DWORD* in/out)
r1, _, err := procCryptEncodeObjectEx.Call(
	uintptr(dwCertEncodingType),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpszStructType))),
	uintptr(pvStructInfo),
	uintptr(dwFlags),
	uintptr(pEncodePara),
	uintptr(pvEncoded),
	uintptr(pcbEncoded),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CryptEncodeObjectEx(
  dwCertEncodingType: DWORD;   // CERT_QUERY_ENCODING_TYPE
  lpszStructType: PAnsiChar;   // LPCSTR
  pvStructInfo: Pointer;   // void*
  dwFlags: DWORD;   // CRYPT_ENCODE_OBJECT_FLAGS
  pEncodePara: Pointer;   // CRYPT_ENCODE_PARA* optional
  pvEncoded: Pointer;   // void* optional, out
  pcbEncoded: Pointer   // DWORD* in/out
): BOOL; stdcall;
  external 'CRYPT32.dll' name 'CryptEncodeObjectEx';

result := DllCall("CRYPT32\CryptEncodeObjectEx"
    , "UInt", dwCertEncodingType   ; CERT_QUERY_ENCODING_TYPE
    , "AStr", lpszStructType   ; LPCSTR
    , "Ptr", pvStructInfo   ; void*
    , "UInt", dwFlags   ; CRYPT_ENCODE_OBJECT_FLAGS
    , "Ptr", pEncodePara   ; CRYPT_ENCODE_PARA* optional
    , "Ptr", pvEncoded   ; void* optional, out
    , "Ptr", pcbEncoded   ; DWORD* in/out
    , "Int")   ; return: BOOL

●CryptEncodeObjectEx(dwCertEncodingType, lpszStructType, pvStructInfo, dwFlags, pEncodePara, pvEncoded, pcbEncoded) = DLL("CRYPT32.dll", "bool CryptEncodeObjectEx(dword, char*, void*, dword, void*, void*, void*)")
# 呼び出し: CryptEncodeObjectEx(dwCertEncodingType, lpszStructType, pvStructInfo, dwFlags, pEncodePara, pvEncoded, pcbEncoded)
# dwCertEncodingType : CERT_QUERY_ENCODING_TYPE -> "dword"
# lpszStructType : LPCSTR -> "char*"
# pvStructInfo : void* -> "void*"
# dwFlags : CRYPT_ENCODE_OBJECT_FLAGS -> "dword"
# pEncodePara : CRYPT_ENCODE_PARA* optional -> "void*"
# pvEncoded : void* optional, out -> "void*"
# pcbEncoded : 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)。