Patent ID: 11900368
Assignee: VIJAY MADISETTI
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 5:
6. The method of claim 5 further comprising:
computing a cypher key using a function that uses first authentication output as an input;
computing an integrity key using a function that uses first authentication output as an input;
receiving at the verifier server an encrypted integrity-protected message from the client application, the encrypted integrity-protected message being the concatenation of an encrypted message and an integrity value; and
performing a message authentication procedure comprising:
decrypting the encrypted message with the cypher key, defining a decrypted message; and
comparing the integrity value with the output of an integrity algorithm using the integrity key and the decrypted message as inputs, defining a local integrity value;

wherein the encrypted integrity-protected message is authenticated if the integrity value equals the local integrity value.