How to prove yourself: practical solutions to identification and signature problems
Proceedings on Advances in cryptology---CRYPTO '86
Fast signature generation with a Fiat Shamir—like scheme
EUROCRYPT '90 Proceedings of the workshop on the theory and application of cryptographic techniques on Advances in cryptology
Simple forward-secure signatures from any signature scheme
Proceedings of the 7th ACM conference on Computer and communications security
Sec '01 Proceedings of the 16th international conference on Information security: Trusted information: the new decade challenge
Forward-Secure Threshold Signature Schemes
CT-RSA 2001 Proceedings of the 2001 Conference on Topics in Cryptology: The Cryptographer's Track at RSA
Robust Key-Evolving Public Key Encryption Schemes
ICICS '02 Proceedings of the 4th International Conference on Information and Communications Security
CRYPTO '97 Proceedings of the 17th Annual International Cryptology Conference on Advances in Cryptology
A Simplified Approach to Threshold and Proactive RSA
CRYPTO '98 Proceedings of the 18th Annual International Cryptology Conference on Advances in Cryptology
Key-Insulated Public Key Cryptosystems
EUROCRYPT '02 Proceedings of the International Conference on the Theory and Applications of Cryptographic Techniques: Advances in Cryptology
Strong Key-Insulated Signature Schemes
PKC '03 Proceedings of the 6th International Workshop on Theory and Practice in Public Key Cryptography: Public Key Cryptography
SiBIR: Signer-Base Intrusion-Resilient Signatures
CRYPTO '02 Proceedings of the 22nd Annual International Cryptology Conference on Advances in Cryptology
Delegation of cryptographic servers for capture-resilient devices
Distributed Computing
Ring signatures without random oracles
ASIACCS '06 Proceedings of the 2006 ACM Symposium on Information, computer and communications security
Forward-secure signatures with untrusted update
Proceedings of the 13th ACM conference on Computer and communications security
Dictionary attacks using keyboard acoustic emanations
Proceedings of the 13th ACM conference on Computer and communications security
Mobile device protection from loss and capture
Proceedings of the 1st international conference on PErvasive Technologies Related to Assistive Environments
Proceedings of the 4th annual workshop on Cyber security and information intelligence research: developing strategies to meet the cyber security and information intelligence challenges ahead
A forward-secure public-key encryption scheme
EUROCRYPT'03 Proceedings of the 22nd international conference on Theory and applications of cryptographic techniques
SCN'02 Proceedings of the 3rd international conference on Security in communication networks
Forward-secure signatures with fast key update
SCN'02 Proceedings of the 3rd international conference on Security in communication networks
Forward-security in private-key cryptography
CT-RSA'03 Proceedings of the 2003 RSA conference on The cryptographers' track
Preventing unofficial information propagation
ICICS'07 Proceedings of the 9th international conference on Information and communications security
Efficient identity-based encryption without random oracles
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
Hierarchical identity based encryption with constant size ciphertext
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
An event driven framework for assistive CPS environments
ACM SIGBED Review - Special Issue on the 2nd Joint Workshop on High Confidence Medical Devices, Software, and Systems (HCMDSS) and Medical Device Plug-and-Play (MD PnP) Interoperability
Telematics and Informatics
| Hi-index | 0.00 |
Assistive environments employ multiple types of devices to monitor human actions and identify critical events for physical safety. Some of the devices must be wireless in order to be nonintrusive. This introduces the problem of authenticating these devices and building secure communication channels among them. The traditional way is to assign a private key to a device for digital identification. In this paper, we present an approach to protect the private key by introducing a third party and bilaterally and proactively generating a random number to refresh key shares based on Bellare and Miner's forward secure signature scheme. This improves the resilient mediated RSA solution because the entire private key is also updated periodically. In this way, if an attacker steals one key share, he only can use it for a limited period of time because it will be obsolete immediately after the next refresh operation. Even if he compromises both key shares simultaneously, the digital signatures generated by previous private keys are still secure. Our scheme is proven to be intrusion resilient based on the CDH assumption in the random oracle model. The construction is also quite efficient.