Invention Grant
- Patent Title: Secure container based protection of password accessible master encryption keys
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Application No.: US15869133Application Date: 2018-01-12
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Publication No.: US10693641B2Publication Date: 2020-06-23
- Inventor: Neil Patrick Adams , Catalin Visinescu
- Applicant: BlackBerry Limited
- Applicant Address: CA Waterloo Ontario
- Assignee: BlackBerry Limited
- Current Assignee: BlackBerry Limited
- Current Assignee Address: CA Waterloo Ontario
- Agency: Fleit Intellectual Property Law
- Agent Jeffrey N. Giunta
- Main IPC: H04L9/08
- IPC: H04L9/08 ; H04L9/32 ; G06F21/45 ; G06F21/62 ; G06F7/58

Abstract:
Systems and methods for maintaining encryption keys are disclosed. An encrypted master key is determined by encrypting a master key based on an initial user password and discarding the master key. The encrypted master key is stored. A request for the master key including a present user password is received and verified based on comparison to the initial user password. Based on failure of verifying the present user password, a failed attempt counter that is maintained within a secure container is created. User password based access to the master key is locked out based on the failed attempt counter exceeding a defined value.
Public/Granted literature
- US20190222419A1 SECURE CONTAINER BASED PROTECTION OF PASSWORD ACCESSIBLE MASTER ENCRYPTION KEYS Public/Granted day:2019-07-18
Information query