A Side-Channel Protected and High-Performance Hardware Implementation for EdDSA25519
This paper presents a high-performance and secure hardware implementation of the Edwards-Curve Digital Signature Algorithm (EdDSA25519). Using the fixed-base signed multi-comb and the k-ary algorithms for scalar multiplication, the proposed design achieves 307%, 253%, and 48% faster performance in k...
| Authors: | , , , |
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| Format: | article |
| Status: | Published version |
| Publication Date: | 2025 |
| Country: | España |
| Institution: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repository: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/402069 |
| Online Access: | http://hdl.handle.net/10261/402069 https://api.elsevier.com/content/abstract/scopus_id/105010050043 |
| Access Level: | Open access |
| Keyword: | EdDSA25519 Elliptic curve cryptography Hardware implementation High-performance Side-channel attacks TVLA |
| Summary: | This paper presents a high-performance and secure hardware implementation of the Edwards-Curve Digital Signature Algorithm (EdDSA25519). Using the fixed-base signed multi-comb and the k-ary algorithms for scalar multiplication, the proposed design achieves 307%, 253%, and 48% faster performance in key generation, signature generation, and signature verification, respectively, compared to the fastest previous hardware implementation in the state-of-the-art. When compared to the software-based OpenSSL implementation, our design demonstrates timing performance improvements ranging from 1000% to 2200%. Additionally, we integrate robust Side-Channel Attack (SCA) countermeasures and validate their effectiveness through Test Vector Leakage Assessment (TVLA). The results demonstrate increased resistance to Simple Power Analysis (SPA) and Differential Power Analysis (DPA), offering a hardware-based secure solution for modern cryptographic applications. |
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