Rudraksh: A compact and lightweight post-quantum key-encapsulation mechanism

Abstract: Resource-constrained devices such as wireless sensors and Internet of Things (IoT) devices have become ubiquitous in our digital ecosystem. These devices generate and handle a major part of our digital data. However, due to the impending threat of quantum computers on our existing public-key cryptographic schemes and the limited resources available on IoT devices, it is important to design lightweight post-quantum cryptographic (PQC) schemes suitable for these devices. In this work, we explored the design space of learning with error-based PQC schemes to design a lightweight key-encapsulation mechanism (KEM) suitable for resourceconstrained devices. We have done a scrupulous and extensive analysis and evaluation of different design elements, such as polynomial size, field modulus structure, reduction algorithm, and secret and error distribution of an LWE-based KEM. Our explorations led to the proposal of a lightweight PQC-KEM, Rudraksh, without compromising security. Our scheme pro.... https://tches.iacr.org/index.php/TCHES/article/view/12060

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Rudraksh: A compact and lightweight post-quantum key-encapsulation mechanism ; volume:2025 ; number:2 ; year:2025 ; IACR transactions on cryptographic hardware and embedded systems ; 2025, Heft 2 (2025)

Contributors, Places and Time

• Creator: Kundu, Suparna ; Ghosh, Archisman ; Karmakar, Angshuman ; Sen, Shreyas ; Verbauwhede, Ingrid

Further information

• DOI: 10.46586/tches.v2025.i2.647-680
• URN: urn:nbn:de:101:1-2503121758170.402148129228
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 15.08.2025, 7:33 AM CEST