MUMBAI, India, Nov. 21 -- Intellectual Property India has published a patent application (202421037948 A) filed by Tata Consultancy Services Limited, Maharashtra, on May 14, 2024, for 'system and method for biometric privacy in single sign-on with conditional homomorphic proxy re-encryption.'
Inventor(s) include Maddali, Lakshmi Padmaja; and Narumanchi, Harika.
The application for the patent was published on Nov. 21, under issue no. 47/2025.
According to the abstract released by the Intellectual Property India: "The present disclosure provides biometric privacy in single sign-on with conditional homomorphic proxy re-encryption (CH-PRE). Conventional methods fail to provide authentication without revealing biometric data. In the present disclosure, when the user initiates a service request, a service provider redirects to 10 an identify provider. Further, user encrypts biometrics using CH-PRE, creates ciphertext and submits to the identity provider for authentication. The identity provider uses template matching algorithms to compare the user submitted encrypted biometrics with stored templates. The identity provider then transforms authentication result into a new ciphertext using re-encryption key provided by the 15 user and signs the resultant ciphertext. Further, the identity provider sends the re- encrypted authentication result along with the signature back to the service provider. Further, the service provider decrypts the resultant authentication result and verifies the authenticity by decrypting the homomorphically re-encrypted data using service provider private key, now having access to the authentication result."
Disclaimer: Curated by HT Syndication.
