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EnclaveUnsealData

関数
封印されたエンクレーブデータを復号し展開する。
DLLvertdll.dll呼出規約winapi対応OSWindows 10 以降
📘 Microsoft Learn (日本語) · English

シグネチャ

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

HRESULT EnclaveUnsealData(
    const void* ProtectedBlob,
    DWORD ProtectedBlobSize,
    void* DecryptedData,   // optional
    DWORD BufferSize,
    DWORD* DecryptedDataSize,
    ENCLAVE_IDENTITY* SealingIdentity,   // optional
    DWORD* UnsealingFlags   // optional
);

パラメーター

名前型方向説明
ProtectedBlobvoid*in復号する封印済みデータ(保護ブロブ)を指すバッファ。
ProtectedBlobSizeDWORDinProtectedBlobのサイズ(バイト)。
DecryptedDatavoid*outoptional復号した平文を受け取る出力バッファ。
BufferSizeDWORDinDecryptedDataバッファのサイズ(バイト)。
DecryptedDataSizeDWORD*out実際に必要/書込みされたサイズを受け取るDWORDへのポインタ。
SealingIdentityENCLAVE_IDENTITY*outoptional封印に使われたIDを受け取るENCLAVE_IDENTITY構造体へのポインタ。NULL可。
UnsealingFlagsDWORD*outoptional復号結果に関するフラグを受け取るDWORDへのポインタ。NULL可。

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT EnclaveUnsealData(
    const void* ProtectedBlob,
    DWORD ProtectedBlobSize,
    void* DecryptedData,   // optional
    DWORD BufferSize,
    DWORD* DecryptedDataSize,
    ENCLAVE_IDENTITY* SealingIdentity,   // optional
    DWORD* UnsealingFlags   // optional
);
[DllImport("vertdll.dll", ExactSpelling = true)]
static extern int EnclaveUnsealData(
    IntPtr ProtectedBlob,   // void*
    uint ProtectedBlobSize,   // DWORD
    IntPtr DecryptedData,   // void* optional, out
    uint BufferSize,   // DWORD
    out uint DecryptedDataSize,   // DWORD* out
    IntPtr SealingIdentity,   // ENCLAVE_IDENTITY* optional, out
    IntPtr UnsealingFlags   // DWORD* optional, out
);
<DllImport("vertdll.dll", ExactSpelling:=True)>
Public Shared Function EnclaveUnsealData(
    ProtectedBlob As IntPtr,   ' void*
    ProtectedBlobSize As UInteger,   ' DWORD
    DecryptedData As IntPtr,   ' void* optional, out
    BufferSize As UInteger,   ' DWORD
    <Out> ByRef DecryptedDataSize As UInteger,   ' DWORD* out
    SealingIdentity As IntPtr,   ' ENCLAVE_IDENTITY* optional, out
    UnsealingFlags As IntPtr   ' DWORD* optional, out
) As Integer
End Function
' ProtectedBlob : void*
' ProtectedBlobSize : DWORD
' DecryptedData : void* optional, out
' BufferSize : DWORD
' DecryptedDataSize : DWORD* out
' SealingIdentity : ENCLAVE_IDENTITY* optional, out
' UnsealingFlags : DWORD* optional, out
Declare PtrSafe Function EnclaveUnsealData Lib "vertdll" ( _
    ByVal ProtectedBlob As LongPtr, _
    ByVal ProtectedBlobSize As Long, _
    ByVal DecryptedData As LongPtr, _
    ByVal BufferSize As Long, _
    ByRef DecryptedDataSize As Long, _
    ByVal SealingIdentity As LongPtr, _
    ByVal UnsealingFlags 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

EnclaveUnsealData = ctypes.windll.vertdll.EnclaveUnsealData
EnclaveUnsealData.restype = ctypes.c_int
EnclaveUnsealData.argtypes = [
    ctypes.POINTER(None),  # ProtectedBlob : void*
    wintypes.DWORD,  # ProtectedBlobSize : DWORD
    ctypes.POINTER(None),  # DecryptedData : void* optional, out
    wintypes.DWORD,  # BufferSize : DWORD
    ctypes.POINTER(wintypes.DWORD),  # DecryptedDataSize : DWORD* out
    ctypes.c_void_p,  # SealingIdentity : ENCLAVE_IDENTITY* optional, out
    ctypes.POINTER(wintypes.DWORD),  # UnsealingFlags : DWORD* optional, out
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('vertdll.dll')
EnclaveUnsealData = Fiddle::Function.new(
  lib['EnclaveUnsealData'],
  [
    Fiddle::TYPE_VOIDP,  # ProtectedBlob : void*
    -Fiddle::TYPE_INT,  # ProtectedBlobSize : DWORD
    Fiddle::TYPE_VOIDP,  # DecryptedData : void* optional, out
    -Fiddle::TYPE_INT,  # BufferSize : DWORD
    Fiddle::TYPE_VOIDP,  # DecryptedDataSize : DWORD* out
    Fiddle::TYPE_VOIDP,  # SealingIdentity : ENCLAVE_IDENTITY* optional, out
    Fiddle::TYPE_VOIDP,  # UnsealingFlags : DWORD* optional, out
  ],
  Fiddle::TYPE_INT)
#[link(name = "vertdll")]
extern "system" {
    fn EnclaveUnsealData(
        ProtectedBlob: *const (),  // void*
        ProtectedBlobSize: u32,  // DWORD
        DecryptedData: *mut (),  // void* optional, out
        BufferSize: u32,  // DWORD
        DecryptedDataSize: *mut u32,  // DWORD* out
        SealingIdentity: *mut ENCLAVE_IDENTITY,  // ENCLAVE_IDENTITY* optional, out
        UnsealingFlags: *mut u32  // DWORD* optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("vertdll.dll")]
public static extern int EnclaveUnsealData(IntPtr ProtectedBlob, uint ProtectedBlobSize, IntPtr DecryptedData, uint BufferSize, out uint DecryptedDataSize, IntPtr SealingIdentity, IntPtr UnsealingFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'vertdll_EnclaveUnsealData' -Namespace Win32 -PassThru
# $api::EnclaveUnsealData(ProtectedBlob, ProtectedBlobSize, DecryptedData, BufferSize, DecryptedDataSize, SealingIdentity, UnsealingFlags)
#uselib "vertdll.dll"
#func global EnclaveUnsealData "EnclaveUnsealData" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; EnclaveUnsealData ProtectedBlob, ProtectedBlobSize, DecryptedData, BufferSize, varptr(DecryptedDataSize), varptr(SealingIdentity), varptr(UnsealingFlags)   ; 戻り値は stat
; ProtectedBlob : void* -> "sptr"
; ProtectedBlobSize : DWORD -> "sptr"
; DecryptedData : void* optional, out -> "sptr"
; BufferSize : DWORD -> "sptr"
; DecryptedDataSize : DWORD* out -> "sptr"
; SealingIdentity : ENCLAVE_IDENTITY* optional, out -> "sptr"
; UnsealingFlags : DWORD* optional, 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 "vertdll.dll"
#cfunc global EnclaveUnsealData "EnclaveUnsealData" sptr, int, sptr, int, var, var, var
; res = EnclaveUnsealData(ProtectedBlob, ProtectedBlobSize, DecryptedData, BufferSize, DecryptedDataSize, SealingIdentity, UnsealingFlags)
; ProtectedBlob : void* -> "sptr"
; ProtectedBlobSize : DWORD -> "int"
; DecryptedData : void* optional, out -> "sptr"
; BufferSize : DWORD -> "int"
; DecryptedDataSize : DWORD* out -> "var"
; SealingIdentity : ENCLAVE_IDENTITY* optional, out -> "var"
; UnsealingFlags : DWORD* optional, 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。
出力引数: 
; HRESULT EnclaveUnsealData(void* ProtectedBlob, DWORD ProtectedBlobSize, void* DecryptedData, DWORD BufferSize, DWORD* DecryptedDataSize, ENCLAVE_IDENTITY* SealingIdentity, DWORD* UnsealingFlags)
#uselib "vertdll.dll"
#cfunc global EnclaveUnsealData "EnclaveUnsealData" intptr, int, intptr, int, var, var, var
; res = EnclaveUnsealData(ProtectedBlob, ProtectedBlobSize, DecryptedData, BufferSize, DecryptedDataSize, SealingIdentity, UnsealingFlags)
; ProtectedBlob : void* -> "intptr"
; ProtectedBlobSize : DWORD -> "int"
; DecryptedData : void* optional, out -> "intptr"
; BufferSize : DWORD -> "int"
; DecryptedDataSize : DWORD* out -> "var"
; SealingIdentity : ENCLAVE_IDENTITY* optional, out -> "var"
; UnsealingFlags : DWORD* optional, 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。
import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	vertdll = windows.NewLazySystemDLL("vertdll.dll")
	procEnclaveUnsealData = vertdll.NewProc("EnclaveUnsealData")
)

// ProtectedBlob (void*), ProtectedBlobSize (DWORD), DecryptedData (void* optional, out), BufferSize (DWORD), DecryptedDataSize (DWORD* out), SealingIdentity (ENCLAVE_IDENTITY* optional, out), UnsealingFlags (DWORD* optional, out)
r1, _, err := procEnclaveUnsealData.Call(
	uintptr(ProtectedBlob),
	uintptr(ProtectedBlobSize),
	uintptr(DecryptedData),
	uintptr(BufferSize),
	uintptr(DecryptedDataSize),
	uintptr(SealingIdentity),
	uintptr(UnsealingFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT
function EnclaveUnsealData(
  ProtectedBlob: Pointer;   // void*
  ProtectedBlobSize: DWORD;   // DWORD
  DecryptedData: Pointer;   // void* optional, out
  BufferSize: DWORD;   // DWORD
  DecryptedDataSize: Pointer;   // DWORD* out
  SealingIdentity: Pointer;   // ENCLAVE_IDENTITY* optional, out
  UnsealingFlags: Pointer   // DWORD* optional, out
): Integer; stdcall;
  external 'vertdll.dll' name 'EnclaveUnsealData';
result := DllCall("vertdll\EnclaveUnsealData"
    , "Ptr", ProtectedBlob   ; void*
    , "UInt", ProtectedBlobSize   ; DWORD
    , "Ptr", DecryptedData   ; void* optional, out
    , "UInt", BufferSize   ; DWORD
    , "Ptr", DecryptedDataSize   ; DWORD* out
    , "Ptr", SealingIdentity   ; ENCLAVE_IDENTITY* optional, out
    , "Ptr", UnsealingFlags   ; DWORD* optional, out
    , "Int")   ; return: HRESULT
●EnclaveUnsealData(ProtectedBlob, ProtectedBlobSize, DecryptedData, BufferSize, DecryptedDataSize, SealingIdentity, UnsealingFlags) = DLL("vertdll.dll", "int EnclaveUnsealData(void*, dword, void*, dword, void*, void*, void*)")
# 呼び出し: EnclaveUnsealData(ProtectedBlob, ProtectedBlobSize, DecryptedData, BufferSize, DecryptedDataSize, SealingIdentity, UnsealingFlags)
# ProtectedBlob : void* -> "void*"
# ProtectedBlobSize : DWORD -> "dword"
# DecryptedData : void* optional, out -> "void*"
# BufferSize : DWORD -> "dword"
# DecryptedDataSize : DWORD* out -> "void*"
# SealingIdentity : ENCLAVE_IDENTITY* optional, out -> "void*"
# UnsealingFlags : DWORD* optional, 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)。
const std = @import("std");

extern "vertdll" fn EnclaveUnsealData(
    ProtectedBlob: ?*anyopaque, // void*
    ProtectedBlobSize: u32, // DWORD
    DecryptedData: ?*anyopaque, // void* optional, out
    BufferSize: u32, // DWORD
    DecryptedDataSize: [*c]u32, // DWORD* out
    SealingIdentity: [*c]ENCLAVE_IDENTITY, // ENCLAVE_IDENTITY* optional, out
    UnsealingFlags: [*c]u32 // DWORD* optional, out
) callconv(std.os.windows.WINAPI) i32;
proc EnclaveUnsealData(
    ProtectedBlob: pointer,  # void*
    ProtectedBlobSize: uint32,  # DWORD
    DecryptedData: pointer,  # void* optional, out
    BufferSize: uint32,  # DWORD
    DecryptedDataSize: ptr uint32,  # DWORD* out
    SealingIdentity: ptr ENCLAVE_IDENTITY,  # ENCLAVE_IDENTITY* optional, out
    UnsealingFlags: ptr uint32  # DWORD* optional, out
): int32 {.importc: "EnclaveUnsealData", stdcall, dynlib: "vertdll.dll".}
pragma(lib, "vertdll");
extern(Windows)
int EnclaveUnsealData(
    void* ProtectedBlob,   // void*
    uint ProtectedBlobSize,   // DWORD
    void* DecryptedData,   // void* optional, out
    uint BufferSize,   // DWORD
    uint* DecryptedDataSize,   // DWORD* out
    ENCLAVE_IDENTITY* SealingIdentity,   // ENCLAVE_IDENTITY* optional, out
    uint* UnsealingFlags   // DWORD* optional, out
);
ccall((:EnclaveUnsealData, "vertdll.dll"), stdcall, Int32,
      (Ptr{Cvoid}, UInt32, Ptr{Cvoid}, UInt32, Ptr{UInt32}, Ptr{ENCLAVE_IDENTITY}, Ptr{UInt32}),
      ProtectedBlob, ProtectedBlobSize, DecryptedData, BufferSize, DecryptedDataSize, SealingIdentity, UnsealingFlags)
# ProtectedBlob : void* -> Ptr{Cvoid}
# ProtectedBlobSize : DWORD -> UInt32
# DecryptedData : void* optional, out -> Ptr{Cvoid}
# BufferSize : DWORD -> UInt32
# DecryptedDataSize : DWORD* out -> Ptr{UInt32}
# SealingIdentity : ENCLAVE_IDENTITY* optional, out -> Ptr{ENCLAVE_IDENTITY}
# UnsealingFlags : DWORD* optional, out -> Ptr{UInt32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
local ffi = require("ffi")
ffi.cdef[[
int32_t EnclaveUnsealData(
    void* ProtectedBlob,
    uint32_t ProtectedBlobSize,
    void* DecryptedData,
    uint32_t BufferSize,
    uint32_t* DecryptedDataSize,
    void* SealingIdentity,
    uint32_t* UnsealingFlags);
]]
local vertdll = ffi.load("vertdll")
-- vertdll.EnclaveUnsealData(ProtectedBlob, ProtectedBlobSize, DecryptedData, BufferSize, DecryptedDataSize, SealingIdentity, UnsealingFlags)
-- ProtectedBlob : void*
-- ProtectedBlobSize : DWORD
-- DecryptedData : void* optional, out
-- BufferSize : DWORD
-- DecryptedDataSize : DWORD* out
-- SealingIdentity : ENCLAVE_IDENTITY* optional, out
-- UnsealingFlags : DWORD* optional, out
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
const koffi = require('koffi');
const lib = koffi.load('vertdll.dll');
const EnclaveUnsealData = lib.func('__stdcall', 'EnclaveUnsealData', 'int32_t', ['void *', 'uint32_t', 'void *', 'uint32_t', 'uint32_t *', 'void *', 'uint32_t *']);
// EnclaveUnsealData(ProtectedBlob, ProtectedBlobSize, DecryptedData, BufferSize, DecryptedDataSize, SealingIdentity, UnsealingFlags)
// ProtectedBlob : void* -> 'void *'
// ProtectedBlobSize : DWORD -> 'uint32_t'
// DecryptedData : void* optional, out -> 'void *'
// BufferSize : DWORD -> 'uint32_t'
// DecryptedDataSize : DWORD* out -> 'uint32_t *'
// SealingIdentity : ENCLAVE_IDENTITY* optional, out -> 'void *'
// UnsealingFlags : DWORD* optional, out -> 'uint32_t *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。
const lib = Deno.dlopen("vertdll.dll", {
  EnclaveUnsealData: { parameters: ["pointer", "u32", "pointer", "u32", "pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.EnclaveUnsealData(ProtectedBlob, ProtectedBlobSize, DecryptedData, BufferSize, DecryptedDataSize, SealingIdentity, UnsealingFlags)
// ProtectedBlob : void* -> "pointer"
// ProtectedBlobSize : DWORD -> "u32"
// DecryptedData : void* optional, out -> "pointer"
// BufferSize : DWORD -> "u32"
// DecryptedDataSize : DWORD* out -> "pointer"
// SealingIdentity : ENCLAVE_IDENTITY* optional, out -> "pointer"
// UnsealingFlags : DWORD* optional, out -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。
<?php
$ffi = FFI::cdef(<<<C
int32_t EnclaveUnsealData(
    void* ProtectedBlob,
    uint32_t ProtectedBlobSize,
    void* DecryptedData,
    uint32_t BufferSize,
    uint32_t* DecryptedDataSize,
    void* SealingIdentity,
    uint32_t* UnsealingFlags);
C, "vertdll.dll");
// $ffi->EnclaveUnsealData(ProtectedBlob, ProtectedBlobSize, DecryptedData, BufferSize, DecryptedDataSize, SealingIdentity, UnsealingFlags);
// ProtectedBlob : void*
// ProtectedBlobSize : DWORD
// DecryptedData : void* optional, out
// BufferSize : DWORD
// DecryptedDataSize : DWORD* out
// SealingIdentity : ENCLAVE_IDENTITY* optional, out
// UnsealingFlags : DWORD* optional, out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。
import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Vertdll extends StdCallLibrary {
    Vertdll INSTANCE = Native.load("vertdll", Vertdll.class);
    int EnclaveUnsealData(
        Pointer ProtectedBlob,   // void*
        int ProtectedBlobSize,   // DWORD
        Pointer DecryptedData,   // void* optional, out
        int BufferSize,   // DWORD
        IntByReference DecryptedDataSize,   // DWORD* out
        Pointer SealingIdentity,   // ENCLAVE_IDENTITY* optional, out
        IntByReference UnsealingFlags   // DWORD* optional, out
    );
}
@[Link("vertdll")]
lib Libvertdll
  fun EnclaveUnsealData = EnclaveUnsealData(
    ProtectedBlob : Void*,   # void*
    ProtectedBlobSize : UInt32,   # DWORD
    DecryptedData : Void*,   # void* optional, out
    BufferSize : UInt32,   # DWORD
    DecryptedDataSize : UInt32*,   # DWORD* out
    SealingIdentity : ENCLAVE_IDENTITY*,   # ENCLAVE_IDENTITY* optional, out
    UnsealingFlags : UInt32*   # DWORD* optional, out
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。
import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef EnclaveUnsealDataNative = Int32 Function(Pointer<Void>, Uint32, Pointer<Void>, Uint32, Pointer<Uint32>, Pointer<Void>, Pointer<Uint32>);
typedef EnclaveUnsealDataDart = int Function(Pointer<Void>, int, Pointer<Void>, int, Pointer<Uint32>, Pointer<Void>, Pointer<Uint32>);
final EnclaveUnsealData = DynamicLibrary.open('vertdll.dll')
    .lookupFunction<EnclaveUnsealDataNative, EnclaveUnsealDataDart>('EnclaveUnsealData');
// ProtectedBlob : void* -> Pointer<Void>
// ProtectedBlobSize : DWORD -> Uint32
// DecryptedData : void* optional, out -> Pointer<Void>
// BufferSize : DWORD -> Uint32
// DecryptedDataSize : DWORD* out -> Pointer<Uint32>
// SealingIdentity : ENCLAVE_IDENTITY* optional, out -> Pointer<Void>
// UnsealingFlags : DWORD* optional, out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。
{$mode objfpc}{$H+}
function EnclaveUnsealData(
  ProtectedBlob: Pointer;   // void*
  ProtectedBlobSize: DWORD;   // DWORD
  DecryptedData: Pointer;   // void* optional, out
  BufferSize: DWORD;   // DWORD
  DecryptedDataSize: Pointer;   // DWORD* out
  SealingIdentity: Pointer;   // ENCLAVE_IDENTITY* optional, out
  UnsealingFlags: Pointer   // DWORD* optional, out
): Integer; stdcall;
  external 'vertdll.dll' name 'EnclaveUnsealData';
import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "EnclaveUnsealData"
  c_EnclaveUnsealData :: Ptr () -> Word32 -> Ptr () -> Word32 -> Ptr Word32 -> Ptr () -> Ptr Word32 -> IO Int32
-- ProtectedBlob : void* -> Ptr ()
-- ProtectedBlobSize : DWORD -> Word32
-- DecryptedData : void* optional, out -> Ptr ()
-- BufferSize : DWORD -> Word32
-- DecryptedDataSize : DWORD* out -> Ptr Word32
-- SealingIdentity : ENCLAVE_IDENTITY* optional, out -> Ptr ()
-- UnsealingFlags : DWORD* optional, out -> Ptr Word32
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。
open Ctypes
open Foreign

let enclaveunsealdata =
  foreign "EnclaveUnsealData"
    ((ptr void) @-> uint32_t @-> (ptr void) @-> uint32_t @-> (ptr uint32_t) @-> (ptr void) @-> (ptr uint32_t) @-> returning int32_t)
(* ProtectedBlob : void* -> (ptr void) *)
(* ProtectedBlobSize : DWORD -> uint32_t *)
(* DecryptedData : void* optional, out -> (ptr void) *)
(* BufferSize : DWORD -> uint32_t *)
(* DecryptedDataSize : DWORD* out -> (ptr uint32_t) *)
(* SealingIdentity : ENCLAVE_IDENTITY* optional, out -> (ptr void) *)
(* UnsealingFlags : DWORD* optional, out -> (ptr uint32_t) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)
(cffi:define-foreign-library vertdll (t "vertdll.dll"))
(cffi:use-foreign-library vertdll)

(cffi:defcfun ("EnclaveUnsealData" enclave-unseal-data :convention :stdcall) :int32
  (protected-blob :pointer)   ; void*
  (protected-blob-size :uint32)   ; DWORD
  (decrypted-data :pointer)   ; void* optional, out
  (buffer-size :uint32)   ; DWORD
  (decrypted-data-size :pointer)   ; DWORD* out
  (sealing-identity :pointer)   ; ENCLAVE_IDENTITY* optional, out
  (unsealing-flags :pointer))   ; DWORD* optional, out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。
use Win32::API;
my $EnclaveUnsealData = Win32::API::More->new('vertdll',
    'int EnclaveUnsealData(LPVOID ProtectedBlob, DWORD ProtectedBlobSize, LPVOID DecryptedData, DWORD BufferSize, LPVOID DecryptedDataSize, LPVOID SealingIdentity, LPVOID UnsealingFlags)');
# my $ret = $EnclaveUnsealData->Call($ProtectedBlob, $ProtectedBlobSize, $DecryptedData, $BufferSize, $DecryptedDataSize, $SealingIdentity, $UnsealingFlags);
# ProtectedBlob : void* -> LPVOID
# ProtectedBlobSize : DWORD -> DWORD
# DecryptedData : void* optional, out -> LPVOID
# BufferSize : DWORD -> DWORD
# DecryptedDataSize : DWORD* out -> LPVOID
# SealingIdentity : ENCLAVE_IDENTITY* optional, out -> LPVOID
# UnsealingFlags : DWORD* optional, out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。

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