Invention Grant
- Patent Title: System and method for generating a server-assisted strong password from a weak secret
-
Application No.: US15814700Application Date: 2017-11-16
-
Publication No.: US10211981B2Publication Date: 2019-02-19
- Inventor: Jan L. Camenisch , Franz-Stefan Preiss , Kai Samelin , Dieter M. Sommer
- Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Applicant Address: US NY Armonk
- Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee Address: US NY Armonk
- Agency: Cantor Colburn LLP
- Agent David Quinn
- Main IPC: H04L9/08
- IPC: H04L9/08 ; H04L29/06 ; H04L9/32

Abstract:
Disclosed herein is a method for generating a high entropy password using a low entropy password and low-entropy login data comprising supplying the low entropy password to a system comprising a generating client and/or a recovery client; and at least n servers; submitting request data derived, at least in part, from the user's low entropy password, where the request data includes authentication data; engaging in a distributed protocol with at least t servers to generate high-entropy values based on stored cryptographic information and a set of authentication information stored on the at least n servers which is checked against the authentication data provided by the user and/or the generating client and/or a recovery client; and generating the high entropy password.
Public/Granted literature
- US20180076956A1 SYSTEM AND METHOD FOR GENERATING A SERVER-ASSISTED STRONG PASSWORD FROM A WEAK SECRET Public/Granted day:2018-03-15
Information query