Title
SANSCrypt: A Sporadic-Authentication-Based Sequential Logic Encryption Scheme
Abstract
We propose SANSCrypt, a novel sequential logic encryption scheme to protect integrated circuits against reverse engineering. Previous sequential encryption methods focus on modifying the circuit state machine such that the correct functionality can be accessed by applying the correct key sequence only once. Considering the risk associated with one-time authentication, SANSCrypt adopts a new temporal dimension to logic encryption, by requiring the user to sporadically perform multiple authentications according to a protocol based on pseudorandom number generation. Analysis and validation results on a set of benchmark circuits show that SANSCrypt offers a substantial output corruptibility if the key sequences are applied incorrectly. Moreover, it exhibits an exponential resilience to existing attacks, including SAT-based attacks, while maintaining a reasonably low overhead.
Year
DOI
Venue
2020
10.1109/VLSI-SOC46417.2020.9344079
2020 IFIP/IEEE 28th International Conference on Very Large Scale Integration (VLSI-SOC)
Keywords
DocType
ISSN
integrated circuit protection,reverse engineering,circuit state machine,one-time authentication,SANSCrypt,benchmark circuits,key sequences,SAT-based attacks,sporadic-authentication-based sequential logic encryption scheme,temporal dimension,pseudorandom number generation,authentication protocol
Conference
2324-8432
ISBN
Citations 
PageRank 
978-1-7281-5410-7
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Yinghua Hu100.68
Kaixin Yang201.01
Shahin Nazarian332738.55
Pierluigi Nuzzo430533.35