CMSG_RECIPIENT_ENCRYPTED_KEY_INFO

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct CERT_ID
{
    public uint dwIdChoice;
    public _Anonymous_e__Union Anonymous;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct CRYPT_INTEGER_BLOB
{
    public uint cbData;
    public IntPtr pbData;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct FILETIME
{
    public uint dwLowDateTime;
    public uint dwHighDateTime;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct CMSG_RECIPIENT_ENCRYPTED_KEY_INFO
{
    public CERT_ID RecipientId;
    public CRYPT_INTEGER_BLOB EncryptedKey;
    public FILETIME Date;
    public IntPtr pOtherAttr;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure CERT_ID
    Public dwIdChoice As UInteger
    Public Anonymous As _Anonymous_e__Union
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure CRYPT_INTEGER_BLOB
    Public cbData As UInteger
    Public pbData As IntPtr
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure FILETIME
    Public dwLowDateTime As UInteger
    Public dwHighDateTime As UInteger
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure CMSG_RECIPIENT_ENCRYPTED_KEY_INFO
    Public RecipientId As CERT_ID
    Public EncryptedKey As CRYPT_INTEGER_BLOB
    Public Date As FILETIME
    Public pOtherAttr As IntPtr
End Structure

import ctypes
from ctypes import wintypes

class CERT_ID(ctypes.Structure):
    _fields_ = [
        ("dwIdChoice", wintypes.DWORD),
        ("Anonymous", _Anonymous_e__Union),
    ]

class CRYPT_INTEGER_BLOB(ctypes.Structure):
    _fields_ = [
        ("cbData", wintypes.DWORD),
        ("pbData", ctypes.c_void_p),
    ]

class FILETIME(ctypes.Structure):
    _fields_ = [
        ("dwLowDateTime", wintypes.DWORD),
        ("dwHighDateTime", wintypes.DWORD),
    ]

class CMSG_RECIPIENT_ENCRYPTED_KEY_INFO(ctypes.Structure):
    _fields_ = [
        ("RecipientId", CERT_ID),
        ("EncryptedKey", CRYPT_INTEGER_BLOB),
        ("Date", FILETIME),
        ("pOtherAttr", ctypes.c_void_p),
    ]

#[repr(C)]
pub struct CERT_ID {
    pub dwIdChoice: u32,
    pub Anonymous: _Anonymous_e__Union,
}

#[repr(C)]
pub struct CRYPT_INTEGER_BLOB {
    pub cbData: u32,
    pub pbData: *mut core::ffi::c_void,
}

#[repr(C)]
pub struct FILETIME {
    pub dwLowDateTime: u32,
    pub dwHighDateTime: u32,
}

#[repr(C)]
pub struct CMSG_RECIPIENT_ENCRYPTED_KEY_INFO {
    pub RecipientId: CERT_ID,
    pub EncryptedKey: CRYPT_INTEGER_BLOB,
    pub Date: FILETIME,
    pub pOtherAttr: *mut core::ffi::c_void,
}

import "golang.org/x/sys/windows"

type CERT_ID struct {
	dwIdChoice uint32
	Anonymous _Anonymous_e__Union
}

type CRYPT_INTEGER_BLOB struct {
	cbData uint32
	pbData uintptr
}

type FILETIME struct {
	dwLowDateTime uint32
	dwHighDateTime uint32
}

type CMSG_RECIPIENT_ENCRYPTED_KEY_INFO struct {
	RecipientId CERT_ID
	EncryptedKey CRYPT_INTEGER_BLOB
	Date FILETIME
	pOtherAttr uintptr
}

type
  CERT_ID = record
    dwIdChoice: DWORD;
    Anonymous: _Anonymous_e__Union;
  end;

  CRYPT_INTEGER_BLOB = record
    cbData: DWORD;
    pbData: Pointer;
  end;

  FILETIME = record
    dwLowDateTime: DWORD;
    dwHighDateTime: DWORD;
  end;

  CMSG_RECIPIENT_ENCRYPTED_KEY_INFO = record
    RecipientId: CERT_ID;
    EncryptedKey: CRYPT_INTEGER_BLOB;
    Date: FILETIME;
    pOtherAttr: Pointer;
  end;

const CERT_ID = extern struct {
    dwIdChoice: u32,
    Anonymous: _Anonymous_e__Union,
};

const CRYPT_INTEGER_BLOB = extern struct {
    cbData: u32,
    pbData: ?*anyopaque,
};

const FILETIME = extern struct {
    dwLowDateTime: u32,
    dwHighDateTime: u32,
};

const CMSG_RECIPIENT_ENCRYPTED_KEY_INFO = extern struct {
    RecipientId: CERT_ID,
    EncryptedKey: CRYPT_INTEGER_BLOB,
    Date: FILETIME,
    pOtherAttr: ?*anyopaque,
};

type
  CERT_ID {.bycopy.} = object
    dwIdChoice: uint32
    Anonymous: _Anonymous_e__Union

  CRYPT_INTEGER_BLOB {.bycopy.} = object
    cbData: uint32
    pbData: pointer

  FILETIME {.bycopy.} = object
    dwLowDateTime: uint32
    dwHighDateTime: uint32

  CMSG_RECIPIENT_ENCRYPTED_KEY_INFO {.bycopy.} = object
    RecipientId: CERT_ID
    EncryptedKey: CRYPT_INTEGER_BLOB
    Date: FILETIME
    pOtherAttr: pointer

struct CERT_ID
{
    uint dwIdChoice;
    _Anonymous_e__Union Anonymous;
}

struct CRYPT_INTEGER_BLOB
{
    uint cbData;
    void* pbData;
}

struct FILETIME
{
    uint dwLowDateTime;
    uint dwHighDateTime;
}

struct CMSG_RECIPIENT_ENCRYPTED_KEY_INFO
{
    CERT_ID RecipientId;
    CRYPT_INTEGER_BLOB EncryptedKey;
    FILETIME Date;
    void* pOtherAttr;
}