Invention Grant
- Patent Title: Determine approximate current time on a client using secure protocol metadata
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Application No.: US15041657Application Date: 2016-02-11
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Publication No.: US10069839B2Publication Date: 2018-09-04
- Inventor: Sarath Madakasira , Philip Joseph Hallin
- Applicant: Microsoft Technology Licensing, LLC
- Applicant Address: US WA Redmond
- Assignee: Microsoft Technology Licensing, LLC
- Current Assignee: Microsoft Technology Licensing, LLC
- Current Assignee Address: US WA Redmond
- Agency: Workman Nydegger
- Main IPC: H04L29/06
- IPC: H04L29/06

Abstract:
Establishing secure connections from a computing device to secure servers when the computing device starts with an incorrect system clock time that would ordinarily prohibit connection to the secure servers. A method includes attempting to access a plurality of secure servers. The method further includes, from each of the servers in the plurality of secure servers, receiving one or more certificates from the secure servers and metadata which includes a specification of time. The method further includes preventing secure applications from sending sensitive data to the plurality of secure servers until a system time has been approximated. The method further includes, from the secure specifications of time, approximating a current system time. The method further includes accessing another secure server using the approximated current system time and using the approximated current system time to validate a certificate from the other server.
Public/Granted literature
- US20170237737A1 Determine Approximate Current Time on a Client Using Secure Protocol Metadata Public/Granted day:2017-08-17
Information query