MUMBAI, India, Nov. 21 -- Intellectual Property India has published a patent application (202544047333 A) filed by Google Llc, Mountain View, U.S.A., on May 16, for 'secure aggregation with one-shot clients.'
Inventor(s) include Gascon, Adrian; Raykova, Mariana; Bell-Clark, James Henry; Li, Baiyu; and Schoppmann, Phillipp.
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: "Methods and systems for implementing secure aggregation with one-shot clients are described herein. A server receives, from each client, (i) an encrypted client input represented by a client input encrypted by a Key-Additive Homomorphic Encryption (KAHE) scheme using a client key, and (ii) an encrypted client key represented by the client key encrypted by an Additive Homomorphic Encryption (AHE) scheme using a public key received by the client from a decryptor. The server adds the encrypted client input to a combination (e.g., a running sum) of encrypted client inputs received from at least some of the clients. The server further adds the encrypted client key to a combination (e.g., a running sum) of encrypted client keys received from the clients which supplied their client inputs to the server. The server then transmits, to the decryptor, the running sum of encrypted client keys. In response, the server receives, from the decryptor, a decrypted key produced by decrypting, using a secret key corresponding to the public key, the running sum of encrypted client keys. The server then decrypts, using the decrypted key, the running sum of encrypted client inputs."
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