A practical protocol for large group oriented networks
EUROCRYPT '89 Proceedings of the workshop on the theory and application of cryptographic techniques on Advances in cryptology
How to withstand mobile virus attacks (extended abstract)
PODC '91 Proceedings of the tenth annual ACM symposium on Principles of distributed computing
How to share a function securely
STOC '94 Proceedings of the twenty-sixth annual ACM symposium on Theory of computing
Proxy signatures for delegating signing operation
CCS '96 Proceedings of the 3rd ACM conference on Computer and communications security
Proactive public key and signature systems
Proceedings of the 4th ACM conference on Computer and communications security
The proactive security toolkit and applications
CCS '99 Proceedings of the 6th ACM conference on Computer and communications security
Untraceable electronic mail, return addresses, and digital pseudonyms
Communications of the ACM
PGP: Pretty Good Privacy
Code and Other Laws of Cyberspace
Code and Other Laws of Cyberspace
Society and Group Oriented Cryptography: A New Concept
CRYPTO '87 A Conference on the Theory and Applications of Cryptographic Techniques on Advances in Cryptology
CRYPTO '89 Proceedings of the 9th Annual International Cryptology Conference on Advances in Cryptology
Shared Generation of Authenticators and Signatures (Extended Abstract)
CRYPTO '91 Proceedings of the 11th Annual International Cryptology Conference on Advances in Cryptology
CRYPTO '97 Proceedings of the 17th Annual International Cryptology Conference on Advances in Cryptology
Optimal-resilience proactive public-key cryptosystems
FOCS '97 Proceedings of the 38th Annual Symposium on Foundations of Computer Science
A method for fast revocation of public key certificates and security capabilities
SSYM'01 Proceedings of the 10th conference on USENIX Security Symposium - Volume 10
A secure and optimally efficient multi-authority election scheme
EUROCRYPT'97 Proceedings of the 16th annual international conference on Theory and application of cryptographic techniques
An approach to enhance inter-provider roaming through secret sharing and its application to WLANs
Proceedings of the 3rd ACM international workshop on Wireless mobile applications and services on WLAN hotspots
Proceedings of the second ACM workshop on Security and privacy in smartphones and mobile devices
| Hi-index | 0.00 |
Threshold Cryptography (distributed key splitting) is traditionally employed as means to preserve the whole key against compromise, i.e., for risk reduction (coping with memory compromise) and availability (coping with denial of service). Recently, some functionality of splitting keys has been shown to be useful beyond preservation, yielding a small number of high-security, server-related applications. However, the business applications and market applicability of splitting keys is still not realized or analyzed. The goal of this position paper is to put forth the thesis that the full power of threshold cryptography as a useful and attractive tool is going to be unleashed only if the ability to split keys is given to end users (the masses). More specifically, we claim that threshold cryptographic operations (e.g. splitting a key) together with user capability to delegate (which we view as a necessary extension of PKI) should be part of the suite of operations available to end-users of a PKI (e.g., embedded in user crypto-APIs/user smartcards). This new tool ("split and delegate") will enable flexible key management at the user level, in contrast with the traditional rigidity of PKI. We note that threshold cryptography is currently mainly an idea find still not in the market (though some companies do offer split key in hardware or software). We believe that the economic value of the suggested user-based applications will be the central driving force behind any market adoption of threshold cryptography. We give an analysis of the potential business and of market penetration scenarios (such business analysis of suggested new cryptographic applications is often done but rarely published).