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ホームSecurity.Cryptography › SslLookupCipherLengths

SslLookupCipherLengths

関数
指定暗号スイートの鍵やMACなどの長さ情報を取得する。
DLLncrypt.dll呼出規約winapi

シグネチャ

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

HRESULT SslLookupCipherLengths(
    NCRYPT_PROV_HANDLE hSslProvider,
    DWORD dwProtocol,
    DWORD dwCipherSuite,
    DWORD dwKeyType,
    NCRYPT_SSL_CIPHER_LENGTHS* pCipherLengths,
    DWORD cbCipherLengths,
    DWORD dwFlags
);

パラメーター

名前方向
hSslProviderNCRYPT_PROV_HANDLEin
dwProtocolDWORDin
dwCipherSuiteDWORDin
dwKeyTypeDWORDin
pCipherLengthsNCRYPT_SSL_CIPHER_LENGTHS*out
cbCipherLengthsDWORDin
dwFlagsDWORDin

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT SslLookupCipherLengths(
    NCRYPT_PROV_HANDLE hSslProvider,
    DWORD dwProtocol,
    DWORD dwCipherSuite,
    DWORD dwKeyType,
    NCRYPT_SSL_CIPHER_LENGTHS* pCipherLengths,
    DWORD cbCipherLengths,
    DWORD dwFlags
);
[DllImport("ncrypt.dll", ExactSpelling = true)]
static extern int SslLookupCipherLengths(
    UIntPtr hSslProvider,   // NCRYPT_PROV_HANDLE
    uint dwProtocol,   // DWORD
    uint dwCipherSuite,   // DWORD
    uint dwKeyType,   // DWORD
    IntPtr pCipherLengths,   // NCRYPT_SSL_CIPHER_LENGTHS* out
    uint cbCipherLengths,   // DWORD
    uint dwFlags   // DWORD
);
<DllImport("ncrypt.dll", ExactSpelling:=True)>
Public Shared Function SslLookupCipherLengths(
    hSslProvider As UIntPtr,   ' NCRYPT_PROV_HANDLE
    dwProtocol As UInteger,   ' DWORD
    dwCipherSuite As UInteger,   ' DWORD
    dwKeyType As UInteger,   ' DWORD
    pCipherLengths As IntPtr,   ' NCRYPT_SSL_CIPHER_LENGTHS* out
    cbCipherLengths As UInteger,   ' DWORD
    dwFlags As UInteger   ' DWORD
) As Integer
End Function
' hSslProvider : NCRYPT_PROV_HANDLE
' dwProtocol : DWORD
' dwCipherSuite : DWORD
' dwKeyType : DWORD
' pCipherLengths : NCRYPT_SSL_CIPHER_LENGTHS* out
' cbCipherLengths : DWORD
' dwFlags : DWORD
Declare PtrSafe Function SslLookupCipherLengths Lib "ncrypt" ( _
    ByVal hSslProvider As LongPtr, _
    ByVal dwProtocol As Long, _
    ByVal dwCipherSuite As Long, _
    ByVal dwKeyType As Long, _
    ByVal pCipherLengths As LongPtr, _
    ByVal cbCipherLengths 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

SslLookupCipherLengths = ctypes.windll.ncrypt.SslLookupCipherLengths
SslLookupCipherLengths.restype = ctypes.c_int
SslLookupCipherLengths.argtypes = [
    ctypes.c_size_t,  # hSslProvider : NCRYPT_PROV_HANDLE
    wintypes.DWORD,  # dwProtocol : DWORD
    wintypes.DWORD,  # dwCipherSuite : DWORD
    wintypes.DWORD,  # dwKeyType : DWORD
    ctypes.c_void_p,  # pCipherLengths : NCRYPT_SSL_CIPHER_LENGTHS* out
    wintypes.DWORD,  # cbCipherLengths : DWORD
    wintypes.DWORD,  # dwFlags : DWORD
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ncrypt.dll')
SslLookupCipherLengths = Fiddle::Function.new(
  lib['SslLookupCipherLengths'],
  [
    Fiddle::TYPE_UINTPTR_T,  # hSslProvider : NCRYPT_PROV_HANDLE
    -Fiddle::TYPE_INT,  # dwProtocol : DWORD
    -Fiddle::TYPE_INT,  # dwCipherSuite : DWORD
    -Fiddle::TYPE_INT,  # dwKeyType : DWORD
    Fiddle::TYPE_VOIDP,  # pCipherLengths : NCRYPT_SSL_CIPHER_LENGTHS* out
    -Fiddle::TYPE_INT,  # cbCipherLengths : DWORD
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
  ],
  Fiddle::TYPE_INT)
#[link(name = "ncrypt")]
extern "system" {
    fn SslLookupCipherLengths(
        hSslProvider: usize,  // NCRYPT_PROV_HANDLE
        dwProtocol: u32,  // DWORD
        dwCipherSuite: u32,  // DWORD
        dwKeyType: u32,  // DWORD
        pCipherLengths: *mut NCRYPT_SSL_CIPHER_LENGTHS,  // NCRYPT_SSL_CIPHER_LENGTHS* out
        cbCipherLengths: u32,  // DWORD
        dwFlags: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("ncrypt.dll")]
public static extern int SslLookupCipherLengths(UIntPtr hSslProvider, uint dwProtocol, uint dwCipherSuite, uint dwKeyType, IntPtr pCipherLengths, uint cbCipherLengths, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ncrypt_SslLookupCipherLengths' -Namespace Win32 -PassThru
# $api::SslLookupCipherLengths(hSslProvider, dwProtocol, dwCipherSuite, dwKeyType, pCipherLengths, cbCipherLengths, dwFlags)
#uselib "ncrypt.dll"
#func global SslLookupCipherLengths "SslLookupCipherLengths" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; SslLookupCipherLengths hSslProvider, dwProtocol, dwCipherSuite, dwKeyType, varptr(pCipherLengths), cbCipherLengths, dwFlags   ; 戻り値は stat
; hSslProvider : NCRYPT_PROV_HANDLE -> "sptr"
; dwProtocol : DWORD -> "sptr"
; dwCipherSuite : DWORD -> "sptr"
; dwKeyType : DWORD -> "sptr"
; pCipherLengths : NCRYPT_SSL_CIPHER_LENGTHS* out -> "sptr"
; cbCipherLengths : 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。
出力引数:
#uselib "ncrypt.dll"
#cfunc global SslLookupCipherLengths "SslLookupCipherLengths" sptr, int, int, int, var, int, int
; res = SslLookupCipherLengths(hSslProvider, dwProtocol, dwCipherSuite, dwKeyType, pCipherLengths, cbCipherLengths, dwFlags)
; hSslProvider : NCRYPT_PROV_HANDLE -> "sptr"
; dwProtocol : DWORD -> "int"
; dwCipherSuite : DWORD -> "int"
; dwKeyType : DWORD -> "int"
; pCipherLengths : NCRYPT_SSL_CIPHER_LENGTHS* out -> "var"
; cbCipherLengths : 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。
出力引数:
; HRESULT SslLookupCipherLengths(NCRYPT_PROV_HANDLE hSslProvider, DWORD dwProtocol, DWORD dwCipherSuite, DWORD dwKeyType, NCRYPT_SSL_CIPHER_LENGTHS* pCipherLengths, DWORD cbCipherLengths, DWORD dwFlags)
#uselib "ncrypt.dll"
#cfunc global SslLookupCipherLengths "SslLookupCipherLengths" intptr, int, int, int, var, int, int
; res = SslLookupCipherLengths(hSslProvider, dwProtocol, dwCipherSuite, dwKeyType, pCipherLengths, cbCipherLengths, dwFlags)
; hSslProvider : NCRYPT_PROV_HANDLE -> "intptr"
; dwProtocol : DWORD -> "int"
; dwCipherSuite : DWORD -> "int"
; dwKeyType : DWORD -> "int"
; pCipherLengths : NCRYPT_SSL_CIPHER_LENGTHS* out -> "var"
; cbCipherLengths : 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")
	procSslLookupCipherLengths = ncrypt.NewProc("SslLookupCipherLengths")
)

// hSslProvider (NCRYPT_PROV_HANDLE), dwProtocol (DWORD), dwCipherSuite (DWORD), dwKeyType (DWORD), pCipherLengths (NCRYPT_SSL_CIPHER_LENGTHS* out), cbCipherLengths (DWORD), dwFlags (DWORD)
r1, _, err := procSslLookupCipherLengths.Call(
	uintptr(hSslProvider),
	uintptr(dwProtocol),
	uintptr(dwCipherSuite),
	uintptr(dwKeyType),
	uintptr(pCipherLengths),
	uintptr(cbCipherLengths),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT
function SslLookupCipherLengths(
  hSslProvider: NativeUInt;   // NCRYPT_PROV_HANDLE
  dwProtocol: DWORD;   // DWORD
  dwCipherSuite: DWORD;   // DWORD
  dwKeyType: DWORD;   // DWORD
  pCipherLengths: Pointer;   // NCRYPT_SSL_CIPHER_LENGTHS* out
  cbCipherLengths: DWORD;   // DWORD
  dwFlags: DWORD   // DWORD
): Integer; stdcall;
  external 'ncrypt.dll' name 'SslLookupCipherLengths';
result := DllCall("ncrypt\SslLookupCipherLengths"
    , "UPtr", hSslProvider   ; NCRYPT_PROV_HANDLE
    , "UInt", dwProtocol   ; DWORD
    , "UInt", dwCipherSuite   ; DWORD
    , "UInt", dwKeyType   ; DWORD
    , "Ptr", pCipherLengths   ; NCRYPT_SSL_CIPHER_LENGTHS* out
    , "UInt", cbCipherLengths   ; DWORD
    , "UInt", dwFlags   ; DWORD
    , "Int")   ; return: HRESULT
●SslLookupCipherLengths(hSslProvider, dwProtocol, dwCipherSuite, dwKeyType, pCipherLengths, cbCipherLengths, dwFlags) = DLL("ncrypt.dll", "int SslLookupCipherLengths(int, dword, dword, dword, void*, dword, dword)")
# 呼び出し: SslLookupCipherLengths(hSslProvider, dwProtocol, dwCipherSuite, dwKeyType, pCipherLengths, cbCipherLengths, dwFlags)
# hSslProvider : NCRYPT_PROV_HANDLE -> "int"
# dwProtocol : DWORD -> "dword"
# dwCipherSuite : DWORD -> "dword"
# dwKeyType : DWORD -> "dword"
# pCipherLengths : NCRYPT_SSL_CIPHER_LENGTHS* out -> "void*"
# cbCipherLengths : 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)。