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Table 4 Sequence of messages and actions for user authentication ceremony

From: Local user-centric identity management

Nr. Message/action description
1. Server sends http digest access authentication challenge to client
2. Challenge from server is forwarded to OffPAD
3: OffPAD presents user authentication request to user
4. User approves authentication request
5. OffPAD computes response to challenge from server
6. Response is sent from OffPAD to client
7. Client forwards response to server
8. Server verifies response which completes user authentication