Invention Grant
- Patent Title: Secure messaging with disposable keys
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Application No.: US15588420Application Date: 2017-05-05
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Publication No.: US10020938B2Publication Date: 2018-07-10
- Inventor: Edwin A. Suominen
- Applicant: Callahan Cellular L.L.C.
- Applicant Address: US DE Wilmington
- Assignee: Callahan Cellular L.L.C.
- Current Assignee: Callahan Cellular L.L.C.
- Current Assignee Address: US DE Wilmington
- Agency: Knobbe Martens Olson & Bear LLP
- Main IPC: H04L9/08
- IPC: H04L9/08 ; H04L29/06 ; H04L9/32 ; H04L29/08

Abstract:
Methods, apparatus, and systems are disclosed for, among other things, secure passphrase handling for computing devices. In one respect, a method is provided. The method includes receiving a plurality of passphrase elements from an input device. The method also includes performing a sequence of secure delay processing operations, each operation generating a delayed output value from an initial value. The passphrase is verified upon completion of the sequence of secure delay processing operations. Further, initial values of respective secure delay processing operations are based on respective passphrase elements and, for each secure delay processing operation after a first secure delay processing operation, a delayed output value from at least one other secure delay processing operations.
Public/Granted literature
- US20170244561A1 SECURE MESSAGING WITH DISPOSABLE KEYS Public/Granted day:2017-08-24
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