Symbian OS Platform Security
vTPM: virtualizing the trusted platform module
USENIX-SS'06 Proceedings of the 15th conference on USENIX Security Symposium - Volume 15
Offline untrusted storage with immediate detection of forking and replay attacks
Proceedings of the 2007 ACM workshop on Scalable trusted computing
Embedded Trusted Computing with Authenticated Non-volatile Memory
Trust '08 Proceedings of the 1st international conference on Trusted Computing and Trust in Information Technologies: Trusted Computing - Challenges and Applications
The Trusted Execution Module: Commodity General-Purpose Trusted Computing
CARDIS '08 Proceedings of the 8th IFIP WG 8.8/11.2 international conference on Smart Card Research and Advanced Applications
Cellular Authentication for Mobile and Internet Services
Cellular Authentication for Mobile and Internet Services
On-board credentials with open provisioning
Proceedings of the 4th International Symposium on Information, Computer, and Communications Security
Secure data management in trusted computing
CHES'05 Proceedings of the 7th international conference on Cryptographic hardware and embedded systems
Towards user-friendly credential transfer on open credential platforms
ACNS'11 Proceedings of the 9th international conference on Applied cryptography and network security
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A generic credential platform realized using a hardware- based trusted execution environment (TrEE) provides a usable and inexpensive way to secure various applications and services. An important requirement for any credential platform is the ability to disable and restore credentials. In this paper, we raise the problem of temporary credential disabling from embedded TrEEs and explain why straightforward solutions fall short. We present two novel credential disabling approaches: one based on the presence check of a personal element, such as SIM card, and another utilizing a semi-trusted server. We have implemented the server-based credential disabling solution for mobile phones with M-Shield TrEE.