Patent ID: 8745715
Filing Date: 2014-06-03
Classification: H04L

Abstract:
1. A method for password-based authentication in a communication system including a group of at least two units associated with a common password, wherein each of said two units comprises at least one processor and at least one memory, said at least one memory containing instructions that, when executed by said at least one processor, are operative to perform the steps of: assigning individual authentication tokens to the respective units in the group based on the password such that each authentication token is irreversibly determined by the password; determining, in a first unit, a check token for a second unit based on the password inputted by a user of said first unit and the authentication token of the first unit, wherein the step of determining the check token comprises the steps of; sending the check token to the second unit; and, comparing, in the second unit, the check token with the authentication token of the second unit for authentication of the first unit towards the second unit, wherein said user of said first unit is authenticated if said check token is the same as said authentication token of said second unit.