public async Task GetNonce() { var privateKey = RSA.Create(RSAPrivateKey.Decode(TestData.PrivateRSA256KeyText)); var client = new AcmeClient(privateKey, directoryUrl: "https://acme-staging-v02.api.letsencrypt.org/directory"); await client.InitializeAsync(); var nonce = await client.GetNonceAsync(); await Task.Delay(1100); Assert.True(nonce.Age.TotalSeconds > 1); Assert.NotNull(nonce.Value); }