BG_AUTH_SCHEME enumeration
The BG_AUTH_SCHEME enumeration defines the constant values that specify the authentication scheme to use when a proxy or server requests user authentication.
Syntax
typedef enum {
BG_AUTH_SCHEME_BASIC = 1,
BG_AUTH_SCHEME_DIGEST,
BG_AUTH_SCHEME_NTLM,
BG_AUTH_SCHEME_NEGOTIATE,
BG_AUTH_SCHEME_PASSPORT
} BG_AUTH_SCHEME;
Constants
BG_AUTH_SCHEME_BASIC
Basic is a scheme in which the user name and password are sent in clear-text to the server or proxy.BG_AUTH_SCHEME_DIGEST
Digest is a challenge-response scheme that uses a server-specified data string for the challenge.BG_AUTH_SCHEME_NTLM
NTLM is a challenge-response scheme that uses the credentials of the user for authentication in a Windows network environment.BG_AUTH_SCHEME_NEGOTIATE
Simple and Protected Negotiation protocol (Snego) is a challenge-response scheme that negotiates with the server or proxy to determine which scheme to use for authentication. Examples are the Kerberos protocol and NTLM.BG_AUTH_SCHEME_PASSPORT
Passport is a centralized authentication service provided by Microsoft that offers a single logon for member sites.
Remarks
DO supports Passport authentication for explicit credentials only, not implicit credentials tied to the account.
The following table shows the authentication requests that DO does not support.
| Scenario not supported | Windows Server 2003 | Windows XP |
|---|---|---|
| Passport authentication on the server when the proxy requires authentication (using the HTTPS protocol). | Not supported | Not supported |
| Any authentication scheme on the server when the proxy requires Digest authentication. | Not supported | Not supported |
| Negotiate authentication on the server when the proxy requires Basic authentication. | Not supported | |
| Using HTTPS when the proxy requires Digest authentication. | Not supported |
Requirements
Minimum supported client |
Windows 10, version 1709 [desktop apps only] |
Minimum supported server |
Windows Server 2016 [desktop apps only] |
Header |
Deliveryoptimization.h |