A proxy approach to e-mail security
Software—Practice & Experience
Protection and the control of information sharing in multics
Communications of the ACM
Identity-Based Encryption from the Weil Pairing
SIAM Journal on Computing
Good-Enough Security: Toward a Pragmatic Business-Driven Discipline
IEEE Internet Computing
User Interaction Design for Secure Systems
ICICS '02 Proceedings of the 4th International Conference on Information and Communications Security
The Resurrecting Duckling: Security Issues for Ad-hoc Wireless Networks
Proceedings of the 7th International Workshop on Security Protocols
An approach to usable security based on event monitoring and visualization
Proceedings of the 2002 workshop on New security paradigms
Moving from the design of usable security technologies to the design of useful secure applications
Proceedings of the 2002 workshop on New security paradigms
An improved e-mail security protocol
ACSAC '97 Proceedings of the 13th Annual Computer Security Applications Conference
Encrypted Key Exchange: Password-Based Protocols SecureAgainst Dictionary Attacks
SP '92 Proceedings of the 1992 IEEE Symposium on Security and Privacy
Usable Access Control for the World Wide Web
ACSAC '03 Proceedings of the 19th Annual Computer Security Applications Conference
In Search of Usable Security: Five Lessons from the Field
IEEE Security and Privacy
ssmail: Opportunistic Encryption in sendmail
LISA '99 Proceedings of the 13th USENIX conference on System administration
Enabling email confidentiality through the use of opportunistic encryption
dg.o '03 Proceedings of the 2003 annual national conference on Digital government research
Plug-and-play PKI: a PKI your mother can use
SSYM'03 Proceedings of the 12th conference on USENIX Security Symposium - Volume 12
Why Johnny can't encrypt: a usability evaluation of PGP 5.0
SSYM'99 Proceedings of the 8th conference on USENIX Security Symposium - Volume 8
Establishing identity without certification authorities
SSYM'96 Proceedings of the 6th conference on USENIX Security Symposium, Focusing on Applications of Cryptography - Volume 6
Compliance defects in public-key cryptography
SSYM'96 Proceedings of the 6th conference on USENIX Security Symposium, Focusing on Applications of Cryptography - Volume 6
Looking for trouble: understanding end-user security management
Proceedings of the 2007 symposium on Computer human interaction for the management of information technology
Secrets and lies in computer-mediated interaction: theory, methods and design.
CHI '08 Extended Abstracts on Human Factors in Computing Systems
Usable secure mailing lists with untrusted servers
Proceedings of the 8th Symposium on Identity and Trust on the Internet
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Support for strong electronic mail security is widely available yet only few communicants appear to make use of these features. Apparently, the operational overhead of security outweighs its perceived benefits. Towards increasing the benefits versus overhead ratio we follow an approach that considers security and usability tradeoffs from the outset. We separate key exchange from binding keys to identities. The best effort key exchange and key maintenance scheme that we devise operates transparently for the user. We also describe complementary visualization and interaction techniques that communicate the security state of sent and received mail to users in a non-intrusive fashion. Structured interviews were conducted with 19 users to assess the usability of the metaphors and the complementary visualizations of the security state. Towards a practical assessment of the overheads of binding keys to identities, we conducted a quantitative analysis of 17 users' anonymized mailbox extracts to determine which security mechanisms would be most appropriate for their communication patterns. We argue that for individual non-commercial users, out-of-band verification of keys could be more economical than building trust in public key certificates issued by third parties.