| 摘要 |
<p num="1"><br/><br/><br/> In one illustrative example, a method in a communication device adapted for <br/>communications using Hypertext Transport Protocol (HTTP) involves setting, at <br/>the <br/>communication device, an HTTP cookie which includes a user identification of a <br/>user of <br/>the communication device and a message portion which is signed with a digital <br/>signature of the user. The communication device sends, to an application <br/>server site via <br/>the communication network, a request message which includes the HTTP cookie. <br/>If <br/>verification of the digital signature at the application server site is <br/>successful, the <br/>communication device will receive access to an application service of the <br/>application <br/>server site. In one variation, the HTTP cookie is alternatively set with a <br/>group <br/>identification of a group with which the user is associated, and the message <br/>portion is <br/>signed with a digital signature of the group. The group may be a plurality of <br/>users <br/>associated with a service provider which provides the communication device <br/>access to a <br/>communication service in the communication network. In this case, the HTTP <br/>cookie <br/>may be set with a token retrieved from the service provider, where the token <br/>includes <br/>the digital signature of the service provider.<br/> |
