CERT_AUTHORITY_KEY_ID2_INFO

using System;
using System.Runtime.InteropServices;

[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 CERT_ALT_NAME_INFO
{
    public uint cAltEntry;
    public IntPtr rgAltEntry;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct CERT_AUTHORITY_KEY_ID2_INFO
{
    public CRYPT_INTEGER_BLOB KeyId;
    public CERT_ALT_NAME_INFO AuthorityCertIssuer;
    public CRYPT_INTEGER_BLOB AuthorityCertSerialNumber;
}

Imports System.Runtime.InteropServices

<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 CERT_ALT_NAME_INFO
    Public cAltEntry As UInteger
    Public rgAltEntry As IntPtr
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure CERT_AUTHORITY_KEY_ID2_INFO
    Public KeyId As CRYPT_INTEGER_BLOB
    Public AuthorityCertIssuer As CERT_ALT_NAME_INFO
    Public AuthorityCertSerialNumber As CRYPT_INTEGER_BLOB
End Structure

import ctypes
from ctypes import wintypes

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

class CERT_ALT_NAME_INFO(ctypes.Structure):
    _fields_ = [
        ("cAltEntry", wintypes.DWORD),
        ("rgAltEntry", ctypes.c_void_p),
    ]

class CERT_AUTHORITY_KEY_ID2_INFO(ctypes.Structure):
    _fields_ = [
        ("KeyId", CRYPT_INTEGER_BLOB),
        ("AuthorityCertIssuer", CERT_ALT_NAME_INFO),
        ("AuthorityCertSerialNumber", CRYPT_INTEGER_BLOB),
    ]

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

#[repr(C)]
pub struct CERT_ALT_NAME_INFO {
    pub cAltEntry: u32,
    pub rgAltEntry: *mut core::ffi::c_void,
}

#[repr(C)]
pub struct CERT_AUTHORITY_KEY_ID2_INFO {
    pub KeyId: CRYPT_INTEGER_BLOB,
    pub AuthorityCertIssuer: CERT_ALT_NAME_INFO,
    pub AuthorityCertSerialNumber: CRYPT_INTEGER_BLOB,
}

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

type CRYPT_INTEGER_BLOB struct {
	cbData uint32
	pbData uintptr
}

type CERT_ALT_NAME_INFO struct {
	cAltEntry uint32
	rgAltEntry uintptr
}

type CERT_AUTHORITY_KEY_ID2_INFO struct {
	KeyId CRYPT_INTEGER_BLOB
	AuthorityCertIssuer CERT_ALT_NAME_INFO
	AuthorityCertSerialNumber CRYPT_INTEGER_BLOB
}

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

  CERT_ALT_NAME_INFO = record
    cAltEntry: DWORD;
    rgAltEntry: Pointer;
  end;

  CERT_AUTHORITY_KEY_ID2_INFO = record
    KeyId: CRYPT_INTEGER_BLOB;
    AuthorityCertIssuer: CERT_ALT_NAME_INFO;
    AuthorityCertSerialNumber: CRYPT_INTEGER_BLOB;
  end;

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

const CERT_ALT_NAME_INFO = extern struct {
    cAltEntry: u32,
    rgAltEntry: ?*anyopaque,
};

const CERT_AUTHORITY_KEY_ID2_INFO = extern struct {
    KeyId: CRYPT_INTEGER_BLOB,
    AuthorityCertIssuer: CERT_ALT_NAME_INFO,
    AuthorityCertSerialNumber: CRYPT_INTEGER_BLOB,
};

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

  CERT_ALT_NAME_INFO {.bycopy.} = object
    cAltEntry: uint32
    rgAltEntry: pointer

  CERT_AUTHORITY_KEY_ID2_INFO {.bycopy.} = object
    KeyId: CRYPT_INTEGER_BLOB
    AuthorityCertIssuer: CERT_ALT_NAME_INFO
    AuthorityCertSerialNumber: CRYPT_INTEGER_BLOB

struct CRYPT_INTEGER_BLOB
{
    uint cbData;
    void* pbData;
}

struct CERT_ALT_NAME_INFO
{
    uint cAltEntry;
    void* rgAltEntry;
}

struct CERT_AUTHORITY_KEY_ID2_INFO
{
    CRYPT_INTEGER_BLOB KeyId;
    CERT_ALT_NAME_INFO AuthorityCertIssuer;
    CRYPT_INTEGER_BLOB AuthorityCertSerialNumber;
}