cscの作法 その219

概要

cscの作法、調べてみた。
BouncyCastle.dll使ってみた。
キーストア(p12)を叩いてみた。

サンプルコード

using System;
using System.Collections;
using System.Net;
using System.Net.Sockets;
using System.Net.Security;
using System.Security.Authentication;
using System.Text;
using System.Security.Cryptography.X509Certificates;
using System.IO;
using Org.BouncyCastle.X509;
using Org.BouncyCastle.Math;
using Org.BouncyCastle.Asn1.X509;
using Org.BouncyCastle.Asn1.Pkcs;
using Org.BouncyCastle.Crypto.Operators;
using Org.BouncyCastle.Security;
using Org.BouncyCastle.Asn1;
using Org.BouncyCastle.Crypto;
using Org.BouncyCastle.Crypto.Generators;
using Org.BouncyCastle.Crypto.Parameters;
using Org.BouncyCastle.Crypto.Prng;
using Org.BouncyCastle.OpenSsl;
using Org.BouncyCastle.Pkcs;

namespace app
{
	public class test0 {
		public static int Main(string[] args) {
			string pfxPath = "test5.p12";
			if (args == null ||args.Length < 1)
			{
				Console.WriteLine("p2 .p12");
			}
			pfxPath = args[0];
			FileStream fs = File.OpenRead(pfxPath);
			char[] passwd = "password".ToCharArray();
			Pkcs12Store store = new Pkcs12StoreBuilder().Build();
			store.Load(fs, passwd);
			string alias = null;
			foreach (string str in store.Aliases)
			{
				if (store.IsKeyEntry(str))
					alias = str;
			}
			if (alias == null)
			{
				Console.WriteLine("alias is empty");
			}
			else
				Console.WriteLine(alias);
			AsymmetricKeyEntry keyEntry = store.GetKey(alias);
			RsaKeyParameters priKey = (RsaKeyParameters) keyEntry.Key;
			X509CertificateEntry certEntry = store.GetCertificate(alias);
			Org.BouncyCastle.X509.X509Certificate x509cert = certEntry.Certificate;
			RsaKeyParameters pubKey = (RsaKeyParameters) x509cert.GetPublicKey();
			x509cert.Verify(pubKey);
			byte[] certByte = x509cert.GetEncoded();
			X509Certificate2 cert2 = new X509Certificate2(certByte);
			Console.WriteLine(cert2.ToString());
			return 0;
		}
	}
}

実行結果

c>p2 pkcs12.p12
localhost
[Subject]
  CN=localhost

[Issuer]
  CN=localhost

[Serial Number]
  562BE42564875E964A04E8468651092B631782B82B7EF0E5D14249E7B28D1D01

[Not Before]
  2022/06/24 9:00:00

[Not After]
  2023/06/24 9:00:00

[Thumbprint]
  6A9E328D46074BBCBCE93EE72576D7434161D242

以上。