Patent · US Active

Adding privacy to standard credentials

US10243738B2 · kind B2 · utility

2Cited by

13References

19Claims

0Family size

Assignee

MICROSOFT TECHNOLOGY LICENSING, LLC · US

Inventors

Melissa E. Chase · Seattle, US
Payman Mohassel · San Jose, US
Chaya Ganesh · New York, US

Key dates

Filing date	Dec 4, 2015
Grant date	Mar 26, 2019
Priority date	—
Expiry date	May 4, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2209/50
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

Standardized digital signature schemes (e.g., Rivest-Shamir-Adleman (RSA), Digital Signature Algorithm (DSA), Elliptical Curve Digital Signature Algorithm (EC-DSA), etc.) may be employed to prove authenticity of a message containing credentials. Proving possession of valid credentials may be performed using a combination of garbled circuits with message authentication codes (MACs) and proof of knowledge protocols (e.g., Sigma protocol, Schnorr protocol, etc.). Such techniques may allow proving entities to prove possession of valid credentials using standardized signature schemes without revealing those credentials directly to a verifying entity.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.