SslComputeFinishedHash

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

HRESULT SslComputeFinishedHash(
    NCRYPT_PROV_HANDLE hSslProvider,
    NCRYPT_KEY_HANDLE hMasterKey,
    NCRYPT_HASH_HANDLE hHandshakeHash,
    BYTE* pbOutput,
    DWORD cbOutput,
    DWORD dwFlags
);

<DllImport("ncrypt.dll", ExactSpelling:=True)>
Public Shared Function SslComputeFinishedHash(
    hSslProvider As UIntPtr,   ' NCRYPT_PROV_HANDLE
    hMasterKey As UIntPtr,   ' NCRYPT_KEY_HANDLE
    hHandshakeHash As UIntPtr,   ' NCRYPT_HASH_HANDLE
    pbOutput As IntPtr,   ' BYTE* out
    cbOutput As UInteger,   ' DWORD
    dwFlags As UInteger   ' DWORD
) As Integer
End Function

' hSslProvider : NCRYPT_PROV_HANDLE
' hMasterKey : NCRYPT_KEY_HANDLE
' hHandshakeHash : NCRYPT_HASH_HANDLE
' pbOutput : BYTE* out
' cbOutput : DWORD
' dwFlags : DWORD
Declare PtrSafe Function SslComputeFinishedHash Lib "ncrypt" ( _
    ByVal hSslProvider As LongPtr, _
    ByVal hMasterKey As LongPtr, _
    ByVal hHandshakeHash As LongPtr, _
    ByVal pbOutput As LongPtr, _
    ByVal cbOutput As Long, _
    ByVal dwFlags 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

SslComputeFinishedHash = ctypes.windll.ncrypt.SslComputeFinishedHash
SslComputeFinishedHash.restype = ctypes.c_int
SslComputeFinishedHash.argtypes = [
    ctypes.c_size_t,  # hSslProvider : NCRYPT_PROV_HANDLE
    ctypes.c_size_t,  # hMasterKey : NCRYPT_KEY_HANDLE
    ctypes.c_size_t,  # hHandshakeHash : NCRYPT_HASH_HANDLE
    ctypes.POINTER(ctypes.c_ubyte),  # pbOutput : BYTE* out
    wintypes.DWORD,  # cbOutput : DWORD
    wintypes.DWORD,  # dwFlags : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ncrypt.dll')
SslComputeFinishedHash = Fiddle::Function.new(
  lib['SslComputeFinishedHash'],
  [
    Fiddle::TYPE_UINTPTR_T,  # hSslProvider : NCRYPT_PROV_HANDLE
    Fiddle::TYPE_UINTPTR_T,  # hMasterKey : NCRYPT_KEY_HANDLE
    Fiddle::TYPE_UINTPTR_T,  # hHandshakeHash : NCRYPT_HASH_HANDLE
    Fiddle::TYPE_VOIDP,  # pbOutput : BYTE* out
    -Fiddle::TYPE_INT,  # cbOutput : DWORD
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "ncrypt")]
extern "system" {
    fn SslComputeFinishedHash(
        hSslProvider: usize,  // NCRYPT_PROV_HANDLE
        hMasterKey: usize,  // NCRYPT_KEY_HANDLE
        hHandshakeHash: usize,  // NCRYPT_HASH_HANDLE
        pbOutput: *mut u8,  // BYTE* out
        cbOutput: u32,  // DWORD
        dwFlags: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ncrypt.dll")]
public static extern int SslComputeFinishedHash(UIntPtr hSslProvider, UIntPtr hMasterKey, UIntPtr hHandshakeHash, IntPtr pbOutput, uint cbOutput, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ncrypt_SslComputeFinishedHash' -Namespace Win32 -PassThru
# $api::SslComputeFinishedHash(hSslProvider, hMasterKey, hHandshakeHash, pbOutput, cbOutput, dwFlags)

#uselib "ncrypt.dll"
#func global SslComputeFinishedHash "SslComputeFinishedHash" sptr, sptr, sptr, sptr, sptr, sptr
; SslComputeFinishedHash hSslProvider, hMasterKey, hHandshakeHash, varptr(pbOutput), cbOutput, dwFlags   ; 戻り値は stat
; hSslProvider : NCRYPT_PROV_HANDLE -> "sptr"
; hMasterKey : NCRYPT_KEY_HANDLE -> "sptr"
; hHandshakeHash : NCRYPT_HASH_HANDLE -> "sptr"
; pbOutput : BYTE* out -> "sptr"
; cbOutput : DWORD -> "sptr"
; dwFlags : DWORD -> "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 "ncrypt.dll"
#cfunc global SslComputeFinishedHash "SslComputeFinishedHash" sptr, sptr, sptr, var, int, int
; res = SslComputeFinishedHash(hSslProvider, hMasterKey, hHandshakeHash, pbOutput, cbOutput, dwFlags)
; hSslProvider : NCRYPT_PROV_HANDLE -> "sptr"
; hMasterKey : NCRYPT_KEY_HANDLE -> "sptr"
; hHandshakeHash : NCRYPT_HASH_HANDLE -> "sptr"
; pbOutput : BYTE* out -> "var"
; cbOutput : DWORD -> "int"
; dwFlags : DWORD -> "int"
; ※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。

; HRESULT SslComputeFinishedHash(NCRYPT_PROV_HANDLE hSslProvider, NCRYPT_KEY_HANDLE hMasterKey, NCRYPT_HASH_HANDLE hHandshakeHash, BYTE* pbOutput, DWORD cbOutput, DWORD dwFlags)
#uselib "ncrypt.dll"
#cfunc global SslComputeFinishedHash "SslComputeFinishedHash" intptr, intptr, intptr, var, int, int
; res = SslComputeFinishedHash(hSslProvider, hMasterKey, hHandshakeHash, pbOutput, cbOutput, dwFlags)
; hSslProvider : NCRYPT_PROV_HANDLE -> "intptr"
; hMasterKey : NCRYPT_KEY_HANDLE -> "intptr"
; hHandshakeHash : NCRYPT_HASH_HANDLE -> "intptr"
; pbOutput : BYTE* out -> "var"
; cbOutput : DWORD -> "int"
; dwFlags : DWORD -> "int"
; ※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 (
	ncrypt = windows.NewLazySystemDLL("ncrypt.dll")
	procSslComputeFinishedHash = ncrypt.NewProc("SslComputeFinishedHash")
)

// hSslProvider (NCRYPT_PROV_HANDLE), hMasterKey (NCRYPT_KEY_HANDLE), hHandshakeHash (NCRYPT_HASH_HANDLE), pbOutput (BYTE* out), cbOutput (DWORD), dwFlags (DWORD)
r1, _, err := procSslComputeFinishedHash.Call(
	uintptr(hSslProvider),
	uintptr(hMasterKey),
	uintptr(hHandshakeHash),
	uintptr(pbOutput),
	uintptr(cbOutput),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function SslComputeFinishedHash(
  hSslProvider: NativeUInt;   // NCRYPT_PROV_HANDLE
  hMasterKey: NativeUInt;   // NCRYPT_KEY_HANDLE
  hHandshakeHash: NativeUInt;   // NCRYPT_HASH_HANDLE
  pbOutput: Pointer;   // BYTE* out
  cbOutput: DWORD;   // DWORD
  dwFlags: DWORD   // DWORD
): Integer; stdcall;
  external 'ncrypt.dll' name 'SslComputeFinishedHash';

result := DllCall("ncrypt\SslComputeFinishedHash"
    , "UPtr", hSslProvider   ; NCRYPT_PROV_HANDLE
    , "UPtr", hMasterKey   ; NCRYPT_KEY_HANDLE
    , "UPtr", hHandshakeHash   ; NCRYPT_HASH_HANDLE
    , "Ptr", pbOutput   ; BYTE* out
    , "UInt", cbOutput   ; DWORD
    , "UInt", dwFlags   ; DWORD
    , "Int")   ; return: HRESULT

●SslComputeFinishedHash(hSslProvider, hMasterKey, hHandshakeHash, pbOutput, cbOutput, dwFlags) = DLL("ncrypt.dll", "int SslComputeFinishedHash(int, int, int, void*, dword, dword)")
# 呼び出し: SslComputeFinishedHash(hSslProvider, hMasterKey, hHandshakeHash, pbOutput, cbOutput, dwFlags)
# hSslProvider : NCRYPT_PROV_HANDLE -> "int"
# hMasterKey : NCRYPT_KEY_HANDLE -> "int"
# hHandshakeHash : NCRYPT_HASH_HANDLE -> "int"
# pbOutput : BYTE* out -> "void*"
# cbOutput : DWORD -> "dword"
# dwFlags : DWORD -> "dword"
# 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)。