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eprint.ing.bot
A Sparse Polynomial Multiplier for HQC Integrating Parallelism and Power-Based Side-Channel Countermeasures (Jaeho Jeon, Suseong Lee, Myeongjun Kim, Eunyoung Seo, Myunghyun Cho, Seonggyeom Kim, Bo Gyeong Kang, Young-Sik Kim) ia.cr/2025/2003
Abstract. The Hamming Quasi-Cyclic (HQC) scheme has recently been standardized as a post-quantum key encapsulation mechanism (KEM), emphasizing the importance of efficient and secure hardware realizations on embedded platforms. However, HQC relies heavily on sparse–dense polynomial multiplications, where conventional shift-and-add architectures remain both performance- and security-critical. In FPGA implementations, these multiplications dominate execution time—occupying 59.5%, 56.1%, and 58.3% of the total latency for KeyGen, Encap, and Decap, respectively—and are further vulnerable to correlation power analysis (CPA) due to deterministic, index-driven memory access patterns. As countermeasures, parallelization improves performance at the cost of additional area. Dummy insertion with random shuffling mitigates leakage but incurs extra cycle overhead. To address this, we propose a co-designed dummy-inserted parallel shift-and-add multiplier for HQC. The design integrates dummy insertion and two-index parallelism in a complementary manner, achieving reduced cycles with area efficiency while providing intrinsic resistance to CPA. Implemented on a Xilinx Artix-7 FPGA, the proposed architecture achieves up to a 1.25× speedup over the baseline sequential multiplier while maintaining near–state-of-the-art area–time efficiency—incurring only a 1.16× AT overhead to simultaneously deliver accelerated performance and CPA resistance. Test Vector Leakage Assessment (TVLA) measurements and theoretical analysis confirm that the parallel architecture effectively suppresses power-based side-channel leakage and provides inherent resistance against CPA—reducing significant leakage points from 4.29% to 0.09%. This work demonstrates that performance and side-channel resistance can be jointly optimized through synergistic hardware–algorithm co-design, offering a practical and scalable HQC accelerator for post-quantum embedded systems. Image showing part 2 of abstract.
October 30, 2025 at 1:15 PM
cinemacoreen.bsky.social
🇰🇷🎂 Quel est votre film préféré avec YOO Oh-sung 유오성 dont ce sont les 59 ans ?
* The Great Battle 안시성 de KIM Kwang-sik 김광식 : www.facebook.com/cin... & www.universcine.com/...
* Friend 친구 de Kwak Gyeong-taek 곽경택 : www.canalplus.com/ci...
September 11, 2025 at 5:00 PM
yejipink543210.bsky.social
#Gim #Mingi was a tong gitaartist of the 70s. Most of the tong gita artists were from prestigious universities. It was the case for #Gim #Mingi, too, who studied at Seoul Natuonal University, where he was discovered by #Choi #Gyeong-sik. He helped the young artist to get a recording contract.
April 8, 2025 at 3:07 AM
fetchfeeds.bsky.social
"Colour Connection(Representative U Hyun Sik) reveals 1st live performance of 3-member Kpop Virtual Idol Group 'The Flash'. The live show took place during the NRP x NEXEED Gyeong https://fefd.link/n9ReD
February 5, 2025 at 3:34 AM
kdramanews.bsky.social
Netflix releases new poster for upcoming kdrama #SquidGame2.

Gi-hun, Player 456
Myung-gi, Player 333
Dae-ho, Player 388
Gyeong-seok, Player 246
Hyun-ju, Player 120
Yong-sik, Player 007
Geum-ja, Player 149
Jung-bae, Player 390
Jun-hee, Player 222
December 5, 2024 at 12:12 PM
thefilmupdates.bsky.social
Netflix has released a look at the players for ‘SQUID GAME’ Season 2:

Gi-hun, Player 456
Myung-gi, Player 333
Dae-ho, Player 388
Gyeong-seok, Player 246
Hyun-ju, Player 120
Yong-sik, Player 007
Geum-ja, Player 149
Jung-bae, Player 390
Jun-hee, Player 222
December 4, 2024 at 11:16 PM
sofiaroratto.bsky.social
E o Gyeong Jong ensinando o Geun Sik a tirar foto hahaha
October 6, 2024 at 11:54 PM
cinemacoreen.bsky.social
🇰🇷🎂 Quel est votre film préféré avec YOO Oh-sung 유오성 dont ce sont les 58 ans ?
* The Great Battle 안시성 de KIM Kwang-sik 김광식 : www.facebook.com/cin... & www.universcine.com/...
* Friend 친구 de Kwak Gyeong-taek 곽경택 : www.canalplus.com/ci...
September 11, 2024 at 5:00 PM
sheepchase.net
Repost with a photo of your favourite villain.
Choi Min-sik as Jang gyeong-cheol In I Saw The Devil.
August 11, 2024 at 10:52 PM
encoreedusud.bsky.social
Les ventes de Viagra vendu par une société pharmaceutique coréenne, entre janvier et août ont augmenté de 10% sur un an et la clientèle de la clinique d'urologie masculine Park Gyeong-sik à Songpa (Séoul) a augmenté de 20 à 30%.
January 8, 2025 at 10:20 AM