using System.Text;

namespace StellaOps.AuditPack.Services;

public sealed partial class AirGapTrustStoreIntegration
{
    private static string DetectAlgorithm(byte[] keyBytes)
    {
        var pem = Encoding.UTF8.GetString(keyBytes);
        if (pem.Contains("EC PRIVATE KEY") || pem.Contains("EC PUBLIC KEY"))
        {
            return "ES256";
        }

        if (pem.Contains("RSA PRIVATE KEY") || pem.Contains("RSA PUBLIC KEY"))
        {
            return "RS256";
        }

        return "unknown";
    }
}