DigitalData.Auth/DigitalData.Auth.Client/ClientPublicKey.cs

using DigitalData.Core.Abstractions.Security.Common;
using DigitalData.Core.Abstractions.Security.Key;
using DigitalData.Core.Security.RSAKey.Base;
using Microsoft.IdentityModel.Tokens;
using System.Security.Cryptography;

namespace DigitalData.Auth.Client;

/// <summary>
/// Represents a public RSA key, allowing dynamic updates and PEM import functionality.
/// </summary>
public class ClientPublicKey : RSAKeyBase, IAsymmetricTokenValidator, IUniqueSecurityContext
{
    public required string Issuer { get; init; }

    public required string Audience { get; init; }

    private string _content = string.Empty;

    public override string Content
    {
        get
        {
            return _content;
        }
        init
        {
            UpdateContent(value);
        }
    }

    internal void UpdateContent(string content)
    {
        _content = content;
        if (string.IsNullOrWhiteSpace(content))
            SecurityKey = new RsaSecurityKey(RSA.Create());
        else
        {
            RSA.ImportFromPem(content);
            SecurityKey = new RsaSecurityKey(RSA);
        }
    }

    public SecurityKey SecurityKey { get; private set; } = new RsaSecurityKey(RSA.Create());
}