在dotnet核心2.0中实现自定义密钥库

using Microsoft.AspNetCore.DataProtection.KeyManagement;

public class CustomKeyRing : IKeyRing
{
    private readonly List<IKey> _keys;

    public CustomKeyRing()
    {
        _keys = new List<IKey>();
    }

    public IReadOnlyCollection<IKey> GetAllKeys()
    {
        return _keys.AsReadOnly();
    }

    public IKey GetCurrentKey()
    {
        return _keys.LastOrDefault();
    }

    public IKey CreateNewKey(DateTimeOffset activationDate, DateTimeOffset expirationDate)
    {
        var newKey = new CustomKey(activationDate, expirationDate);
        _keys.Add(newKey);
        return newKey;
    }
}

services.AddSingleton<IKeyRing, CustomKeyRing>();

using Microsoft.AspNetCore.DataProtection;

public class MyService
{
    private readonly IDataProtector _protector;

    public MyService(IDataProtectionProvider dataProtectionProvider)
    {
        _protector = dataProtectionProvider.CreateProtector("my-purpose");
    }

    public string ProtectData(string data)
    {
        return _protector.Protect(data);
    }

    public string UnprotectData(string protectedData)
    {
        return _protector.Unprotect(protectedData);
    }
}