Qualcomm Incorporated

Indranil Banerjee

Rosario Cammarota

Nidish Ramachandra Kamath

Deepti Mani

Can Acar

Matthew Scott McGregor

Srilekha Krishnamurthy

Ge Wang

Dmitry Beransky

Techniques for mitigating side-channel attacks on cryptographic algorithms are provided. An example method according to these techniques includes applying a block cipher algorithm to an input data to generate a cryptographic output, such that applying the block cipher to input data comprises modifying an output of a stage of the block cipher algorithm such that each output of the stage of the block cipher algorithm has a constant Hamming weight, and outputting the cryptographic output.

Lightweight mitigation against first-order probing side-channel attacks on block ciphers

Mesh communications aspects are disclosed in which multiple mobile devices located within a communication area perform direct communication to establish a mesh network. Each device node included in the mesh network provides power profile information to the other nodes on the network. As mesh messages are generated for transmission by the nodes onto the mesh network, an adaptive routing mechanism determines the transmission route based on the power profile of the proposed target node. The selective and adaptive routing determination allows for power to be efficiently conserved within the mesh network.

Power optimized behavior in mesh networks

Growing community of inventors

San Diego, CA, United States of America

Indranil Banerjee