Digest Challenge

The value of the Nextnonce directive is the nonce from the server to the client who wants to use for future authentication response. As a single execution or other changes, nonce the server can send authentication header with a Nextnonce field info. If the Nextnonce field is present should be used to construct the authorization header for your next order. The client can cause, that an application to authenticate the server with the scarf = TRUE. Server implementations should carefully consider the performance impact through this mechanism; Pipeline applications fail if every response includes a Nextnonce directive used the following query received from the server. Must be used for a limited period, eighth performance guarantee disjunctive, former Nuncio vs the pipeline request. Use of the nonce-count can retain the maximum benefit for the safety of a new server nonce without the harmful effects of the pipeline. QOP indicates the quality message security options apply to the response from the server. The auth value is available for authentication; the value of auth-int is authentication with integrity protection. The server must digest challenge use the same value for the message-QOP directive in reply, as it was posted in the corresponding application on the client. The compendium of the response in the response-auth optional directive supports mutual authentication, the test server, the user's mystery and QOP = auth-int white response provides limited integrity protection. The value of the response is calculated for a query condensed in the header of the approval, unless that QOP = auth Digest or A2 is not in the authorization request header, A2 =: Digest-URI value and if QOP = auth-int, A2 is A2 =: value Digest-URI: H (entidad-Cuerpo) Franks, and. Follow the standards of [page 16] RFC 2617 HTTP authentication June 1999 Digest-URI-value is the value of the URI in the authorization request header. The CN value Cnonce value must be in the client's request is for the response message. The response-auth, the Cnonce and guidelines, the nonce-count must be present and if QOP = auth or QOP = auth-int is specified. The authentication-info header is allowed in the trailer of a message through the fragmented HTTP transfer encoding. digest operation 3 3 received head approval, the server can verify their validity, researching with the user has sent the password. Then the server should lead to digest the same process (s. z. b. MD5) performed by the customer and compare the result with the value date of request-digest. Note that the HTTP server should know doesn't actually delete the password. H (A1) on the server is available, you can check the validity of an authorization header. Customer response, a challenge to a WWW-Authenticate-Login-Authentifizierung with this shelter space. The authentication session lasts until the customer a crime more than WWW-authenticate receives from any server in the security field. County and opaque values associated with an authentication session should not forget an account username, password, nonce, nonce, use the space to construct the authorization header in future requests in this protection. The authorization header may be included preemptively; This improves server efficiency and avoids trip around tools for authentication requests. The server can modify the header information of authorization to accept that the nonce value supplied is not so cool. Otherwise, the server may return a 401 response with a new nonce value, make sure that the client is; Repeat the query, specifying stale = TRUE with this response, it says that the server has returned to test the client with the new Nuncio, but without requiring a new username and password. As customer needs, given the opaque value back from the policy server for the duration of a session, to opaque data that is used for conveying information about the authentication session state. (Please note that any application can be achieved by inclusion of the State through the nonce as easily and securely). For example, a server may be responsible for the content, which is actually another authentication server. This includes an opaque directive and a directive of domain that contains a server URI that value first 401 response include, and ValueFranks. The authentication standard track RFC 2617 HTTP [Page 17] June 1999 contains status information. The client will retry the request, at which time the server can respond with a 301/302 redirection, pointing to the URI on the second server. The customer will be redirected to follow and pass an authorization, including the header. .