Several optimizations to Qlapoti (Asiacrypt’25), an ideal-finding procedure at the heart of modern isogeny-based signature schemes, are presented and an additional tailored optimizations are introduced to the Qlapoti-optimized PRISM implementation (PKC’25, Journal of Cryptology), for which they introduce an additional tailored optimizations.
The SHA-3 functions are widely adopted in post-quantum cryptographic algorithms, yet their computation often constitutes a major performance bottleneck in these schemes. Although a variety of post-quantum cryptographic algorithms are designed to exploit the parallel processing capabilities of SIMD-accelerated SHA-3 on...
Run-Qing Xu, De-Biao He, Cong Peng et al.· IACR Transactions on Cryptog...· 0 citations
We present Tulva, a practical threshold FHE scheme which equips a base FHE scheme with an asynchronous threshold decryption mechanism in a modular way. Our scheme simultaneously (1) is compatible with virtually any base FHE scheme and leaves its ciphertexts unchanged apart from an appended random tag, (2) supports a wi...
Valerio Cini, Antonio Guimarães, Russell W. F. Lai et al.· 0 citations
The first ASIC evaluation of the Yeniaras-Cenk 5-way multiplier (U1-hybrid), synthesized to the Nangate 45 nm library and compared against the state-of-the-art parallel schoolbook multiplier of Peng et al. is presented.
This paper suggests that as a key exchange mechanism, BB84 should be run with security parameters comparable to those of ML-KEM, and analyzes performance implications if this choice is taken, and offers general guidelines for BB84 parameter selection.
Sara Nikula, Mari Muurman· Cryptography· 0 citations