Scale and performance in a distributed file system
ACM Transactions on Computer Systems (TOCS)
A cryptographic file system for UNIX
CCS '93 Proceedings of the 1st ACM conference on Computer and communications security
The mythical man-month (anniversary ed.)
The mythical man-month (anniversary ed.)
Smart Card Developer's Kit
Cracking DES: Secrets of Encryption Research, Wiretap Politics and Chip Design
Cracking DES: Secrets of Encryption Research, Wiretap Politics and Chip Design
On the Security of Remotely Keyed Encryption
FSE '97 Proceedings of the 4th International Workshop on Fast Software Encryption
A secure and reliable bootstrap architecture
SP '97 Proceedings of the 1997 IEEE Symposium on Security and Privacy
SSYM'00 Proceedings of the 9th conference on USENIX Security Symposium - Volume 9
Smartcard integration with Kerberos V5
WOST'99 Proceedings of the USENIX Workshop on Smartcard Technology on USENIX Workshop on Smartcard Technology
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Storing information securely is one of the most important roles expected for computer systems, but it is difficult to achieve with current commodity computers. The computers may yield secrets through physical breach, software bug exploitation, or password guessing attack. Even file systems that provide strong security, such as the cryptographic file system, are not perfect against these attacks. We have developed SC-CFS, a file system that encrypts files and takes advantage of a smartcard for per-file key generation. SC-CFS counters password guessing attack, and minimizes the damage caused by physical attack and bug exploitation. The performance of the system is not yet satisfactory, taking 300 ms for accessing a file.