Invention Grant
- Patent Title: Time-based digital signature
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Application No.: US16220798Application Date: 2018-12-14
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Publication No.: US10911243B1Publication Date: 2021-02-02
- Inventor: Phillip H. Griffin , Jeffrey J. Stapleton
- Applicant: Wells Fargo Bank, N.A.
- Applicant Address: US CA San Francisco
- Assignee: Wells Fargo Bank, N.A.
- Current Assignee: Wells Fargo Bank, N.A.
- Current Assignee Address: US CA San Francisco
- Agency: Foley & Lardner LLP
- Main IPC: H04L29/06
- IPC: H04L29/06 ; H04L9/32 ; G06F9/54

Abstract:
Various embodiments relate to a method performed by a processor of a computing system. An example method includes receiving, by a computing system, an event. The event is associated with a digital signature in a first time-based message. The event signals a change to a property of the digital signature. The first time-based message includes a first trusted time stamp token from a timing authority. The first trusted time stamp token is generated using a first hash of digitally signed content, the digitally signed content generated by digitally signing content. The first time-based message is retrieved. A second hash of the first trusted time stamp token is generated. The second hash is transmitted to a timing authority. A second trusted time stamp token is received from the trusted timing authority in response to transmitting the second hash. A second time-based message is generated including the second trusted time stamp token.
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