private string GetChalangeDnsText(Account account, string token)
{
var key = GetChalangeKey(account, token);
var hashed = Sha256HashProvider.ComputeHash(Encoding.UTF8.GetBytes(key));
return(JwsConvert.ToBase64String(hashed));
}
//
//private async Task<Authorization> DeactivateChallengeAsync(Uri location)
//{
// var auth = new Authorization { Status = AuthorizationStatus.Deactivated };
// var signedData = _jws.Sign(auth, location, location, Nonce);
// return await PostAsync<Authorization>(location, signedData);
//}
private string GetChalangeKey(Account account, string token)
{
var jwkJson = JsonConvert.SerializeObject(account.Key.Jwk, Formatting.None, _jsonSettings);
var jwkBytes = Encoding.UTF8.GetBytes(jwkJson);
var jwkThumbprint = Sha256HashProvider.ComputeHash(jwkBytes);
var jwkThumbprintEncoded = JwsConvert.ToBase64String(jwkThumbprint);
return($"{token}.{jwkThumbprintEncoded}");
}