RT Journal Article T1 Domain-oriented masked bit-parallel finite-field multiplier against side-channel attacks A1 Imaña Pascual, José Luis A1 Dhooghe, Siemen AB Side-Channel Analysis(SCA) constitutes a serious threat to the security of implemented cryptosystems. In SCA, the attacker can obtain information leakage from a device executing cryptographic algorithms by means of the measure of side-channels such as power consumption, electromagnetic radiation and execution time. For this reason, effective countermeasures against SCA are indispensable in implemented cryptographic devices. The use of masking schemes (in which intermediate computations are independent from the sensible input data) constitutes the most effective approach to achieve resistance against physical attacks. Among the different masking methods proposed for hardware, domain-oriented masking is one of the most promising due to its lower implementation costs, level of security and glitch resistance. In this paper, a new bit-parallel first-order domain-oriented masked finite field multiplier is presented which incorporates the addition of fresh random values without increasing the computation delay. Explicit expressions for the computation of the new masked multiplier for the binary extension field used in the Advanced Encryption Standard(AES) are also given. PB Elsevier SN 1872-6119 YR 2023 FD 2023-08 LK https://hdl.handle.net/20.500.14352/73181 UL https://hdl.handle.net/20.500.14352/73181 LA eng NO CRUE-CSIC (Acuerdos Transformativos 2022)"The authors would like to thank the reviewers for their valuable comments to improve the quality of the paper.The work of José L. Imaña was supported by grant PID2021-123041OB-I00 funded by MCIN/AEI/ 10.13039/ 501100011033 and by “ERDF A way of making Europe”, and by the CM under grant S2018/TCS-4423. The work of Siemen Dhooghe was supported by a PhD Fellowship from the Research Foundation – Flanders (FWO)." NO Ministerio de Ciencia e Innovación (MCIN) NO Agencia Estatal de Investigación (AEI) NO European Regional Development Fund (ERDF) NO Universidad Complutense de Madrid NO The Research Foundation – Flanders (FWO) DS Docta Complutense RD 18 abr 2025