using System;

using System.Collections.Generic;

using System.Linq;

using System.Security.Cryptography;

using System.Formats.Asn1;

​

public class Program

{

    public static void Main()

    {

        var payload = CreateAuthenticodeContentInfo("1.3.6.1.4.1.311.2.1.15", "2.16.840.1.101.3.4.2.3", new byte[] { 0x00, 0x01, 0x02, 0x03 });

        Console.WriteLine(string.Join(", ", payload.Select(x => $"0x{x:x2}")));

        Console.WriteLine(string.Join("", payload.Select(x => x.ToString("x2"))));

    }

    private static byte[] CreateAuthenticodeContentInfo(string spcIndirectDataContent_data_type, string spcIndirectDataContent_messageDigest_digestAlgorithm_algorithm, byte[] spcIndirectDataContent_messageDigest_digest)

    {

        var writer = new AsnWriter(AsnEncodingRules.BER);

        writer.PushSequence(); // Start SpcIndirectDataContent

        writer.PushSequence(); // Start SpcIndirectDataContent.data

        writer.WriteObjectIdentifier(spcIndirectDataContent_data_type); // SpcIndirectDataContent.data.type

        writer.WriteNull(); // SpcIndirectDataContent.data.value

        writer.PopSequence(); // End SpcIndirectDataContent.data

        writer.PushSequence(); // Start SpcIndirectDataContent.messageDigest

        writer.PushSequence(); // Start SpcIndirectDataContent.messageDigest.digestAlgorithm

        writer.WriteObjectIdentifier(spcIndirectDataContent_messageDigest_digestAlgorithm_algorithm);

        writer.WriteNull();

        writer.PopSequence(); // End SpcIndirectDataContent.messageDigest.digestAlgorithm

        writer.WriteOctetString(spcIndirectDataContent_messageDigest_digest); // SpcIndirectDataContent.messageDigest.digest

        writer.PopSequence(); // End SpcIndirectDataContent.messageDigest

        writer.PopSequence(); // End SpcIndirectDataContent

        return writer.Encode();

    }

}