PeerConnectiveChat/PCC.Pocs/Pocs/RsaUtilityPoc.cs

using System.Diagnostics;
using System.Security.Cryptography;
using System.Text;
using PCC.App.Security;

namespace PCC.Pocs.Pocs
{
    internal static class RsaUtilityPoc
    {
        public static void RunPoc()
        {
            var (pub1, pri1) = RsaUtility.GeneratePKCS1(4096); // sender
            var (pub2, pri2) = RsaUtility.GeneratePKCS1(4096); // rec

            var rsaPub1 = RsaUtility.FromPKCS1PublicKey(pub1);
            var rsaPri1 = RsaUtility.FromPKCS1PrivateKey(pri1);

            var rsaPub2 = RsaUtility.FromPKCS1PublicKey(pub2);
            var rsaPri2 = RsaUtility.FromPKCS1PrivateKey(pri2);

            var rawText = RandomNumberGenerator.GetString(new[] { 'C', 'D' }, RandomNumberGenerator.GetInt32(10)) + "Brrr汉字Brrr:" + RandomNumberGenerator.GetString(new[] { 'A', 'B' }, 1024);
            var rawBytes = Encoding.UTF8.GetBytes(rawText);

            var encBytes = RsaUtility.EncryptAndSignature(rsaPub2, rawBytes, rsaPri1);
            var decBytes = RsaUtility.DecryptAndVerifySignature(rsaPri2, encBytes, rsaPub1);

            var decText = Encoding.UTF8.GetString(decBytes);

            var success = rawText == decText;
        }
    }
}