IdentityShroud/IdentityShroud.Api/Apis/Mappers/KeyMapper.cs

using IdentityShroud.Core.Messages;
using IdentityShroud.Core.Model;
using IdentityShroud.Core.Security.Keys;

namespace IdentityShroud.Api.Mappers;

public class KeyMapper(IKeyProviderFactory keyProviderFactory)
{
    public JsonWebKeySet KeyListToJsonWebKeySet(IEnumerable<RealmSigningKey> keys)
    {
        JsonWebKeySet wks = new();
        foreach (var k in keys)
        {
            IKeyProvider provider = keyProviderFactory.CreateProvider(k.KeyType);
            if (provider.IsPublic)
            {
                JsonWebKey jwk = new()
                {
                    KeyId = k.Id.ToString(),
                    KeyType = k.KeyType,
                    Use = "sig",
                };

                provider.SetJwkParameters(k.PublicKeyParameters!, jwk);
                wks.Keys.Add(jwk);
            }
        }
        return wks;
    }
}