namespace System.ServiceModel.Channels { internal static class TransportSecurityHelpers { public static ValueTask<(NetworkCredential credential, TokenImpersonationLevel impersonationLevel, AuthenticationLevel authenticationLevel)> GetSspiCredentialAsync(SecurityTokenProviderContainer tokenProvider, TimeSpan timeout); public static ValueTask<(NetworkCredential credential, bool extractGroupsForWindowsAccounts, TokenImpersonationLevel impersonationLevel, bool allowNtlm)> GetSspiCredentialCoreAsync(SspiSecurityTokenProvider tokenProvider, TimeSpan timeout); public static SspiSecurityTokenProvider GetSspiTokenProvider(SecurityTokenManager tokenManager, EndpointAddress target, Uri via, string transportScheme, AuthenticationSchemes authenticationScheme, ChannelParameterCollection channelParameters); public static SecurityTokenProvider GetDigestTokenProvider(SecurityTokenManager tokenManager, EndpointAddress target, Uri via, string transportScheme, AuthenticationSchemes authenticationScheme, ChannelParameterCollection channelParameters); public static SecurityTokenProvider GetCertificateTokenProvider(SecurityTokenManager tokenManager, EndpointAddress target, Uri via, string transportScheme, ChannelParameterCollection channelParameters); public static Task<NetworkCredential> GetUserNameCredentialAsync(SecurityTokenProviderContainer tokenProvider, TimeSpan timeout); public static SecurityTokenProvider GetUserNameTokenProvider(SecurityTokenManager tokenManager, EndpointAddress target, Uri via, string transportScheme, AuthenticationSchemes authenticationScheme, ChannelParameterCollection channelParameters); } }