4 papers
Exploiting Load/Store Leakage of Sparse Vectors for Key Recovery in HQC
Gustavo Banegas, Benjamin Smith, Jad Zahreddine
Hamming Quasi-Cyclic (HQC) is a code-based key encapsulation mechanism selected by NIST for standardization, making its resistance to implementation attacks critically important. W…
Compressed verification for post-quantum signatures with long-term public keys
Gustavo Banegas, Anaëlle Le Dévéhat, Benjamin Smith
Many signature applications-such as root certificates, secure software updates, and authentication protocols-involve long-lived public keys that are transferred or installed once a…
Fast and Frobenius: Rational Isogeny Evaluation over Finite Fields
Gustavo Banegas, Valerie Gilchrist, Anaëlle Le Dévéhat +1
Consider the problem of efficiently evaluating isogenies of elliptic curves over a finite field , where the kernel is a cyclic g…
Wavelet: Code-based postquantum signatures with fast verification on microcontrollers
Gustavo Banegas, Thomas Debris-Alazard, Milena Nedeljković +1
This work presents the first full implementation of Wave, a postquantum code-based signature scheme. We define Wavelet, a concrete Wave scheme at the 128-bit classical security lev…