Paper Info
Title
Memory encryption for smart cards
Abstract
With the latest advances in attack methods, it has become increasingly more difficult to secure data stored on smart cards, especially on non-volatile memories (NVMs), which may store sensitive information such as cryptographic keys or program code. Lightweight and low-latency cryptographic modules are a promising solution to this problem. In this study, memory encryption schemes using counter (CTR) and XOR-Encrypt-XOR (XEX) modes of operation are adapted for the target application, and utilized using various implementations of the block ciphers AES and PRESENT. Both schemes are implemented with a block cipher-based address scrambling scheme, as well as a special write counter scheme in order to extend the lifetime of the encryption key in CTR-mode. Using the lightweight cipher PRESENT, it is possible to implement a smart card NVM encryption scheme with less than 6K gate equivalents and zero additional latency.
Year
DOI
Venue
2011
10.1007/978-3-642-27257-8_13
CARDIS
Keywords
Field
DocType
attack method,cryptographic key,smart card,block cipher-based address,smart card nvm encryption,lightweight cipher,memory encryption scheme,counter scheme,encryption key,low-latency cryptographic module,aes
Multiple encryption,Key Wrap,Computer security,Computer science,Disk encryption theory,Encryption,40-bit encryption,Probabilistic encryption,Triple DES,Computer hardware,On-the-fly encryption,Embedded system
Conference
Citations 
PageRank 
References 
4
0.55
14
Authors
3
Name
Order
Citations
PageRank
Baris Ege11008.64
Elif Bilge Kavun21149.89
Tolga Yalçin31209.20