Identity-based cryptosystems and signature schemes
Proceedings of CRYPTO 84 on Advances in cryptology
Identity-Based Encryption from the Weil Pairing
SIAM Journal on Computing
A Forward-Secure Digital Signature Scheme
CRYPTO '99 Proceedings of the 19th Annual International Cryptology Conference on Advances in Cryptology
Identity-Based Encryption from the Weil Pairing
CRYPTO '01 Proceedings of the 21st Annual International Cryptology Conference on Advances in Cryptology
Secure Integration of Asymmetric and Symmetric Encryption Schemes
CRYPTO '99 Proceedings of the 19th 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
A New Forward-Secure Digital Signature Scheme
ASIACRYPT '00 Proceedings of the 6th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
An Identity Based Encryption Scheme Based on Quadratic Residues
Proceedings of the 8th IMA International Conference on Cryptography and Coding
How to Enhance the Security of Public-Key Encryption at Minimum Cost
PKC '99 Proceedings of the Second International Workshop on Practice and Theory in Public Key Cryptography
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
A forward-secure public-key encryption scheme
EUROCRYPT'03 Proceedings of the 22nd international conference on Theory and applications of cryptographic techniques
Intrusion-resilient public-key encryption
CT-RSA'03 Proceedings of the 2003 RSA conference on The cryptographers' track
Efficient identity-based encryption without random oracles
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
Identity-Based Key-Insulated Signature Without Random Oracles
Computational Intelligence and Security
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Key Insulation and Intrusion Resilience over a Public Channel
CT-RSA '09 Proceedings of the The Cryptographers' Track at the RSA Conference 2009 on Topics in Cryptology
Key-Insulated Encryption Based Key Pre-distribution Scheme for WSN
ISA '09 Proceedings of the 3rd International Conference and Workshops on Advances in Information Security and Assurance
CCA2 secure (hierarchical) identity-based parallel key-insulated encryption without random oracles
Journal of Systems and Software
Parallel key-insulated public key encryption without random oracles
PKC'07 Proceedings of the 10th international conference on Practice and theory in public-key cryptography
Identity-based threshold key-insulated encryption without random oracles
CT-RSA'08 Proceedings of the 2008 The Cryptopgraphers' Track at the RSA conference on Topics in cryptology
Generic constructions of parallel key-insulated encryption
SCN'10 Proceedings of the 7th international conference on Security and cryptography for networks
Cryptanalysis of an (hierarchical) identity based parallel key-insulated encryption scheme
Journal of Systems and Software
New identity-based key-insulated convertible multi-authenticated encryption scheme
Journal of Network and Computer Applications
Identity-based key-insulated signature with secure key-updates
Inscrypt'06 Proceedings of the Second SKLOIS conference on Information Security and Cryptology
Reducing the spread of damage of key exposures in key-insulated encryption
VIETCRYPT'06 Proceedings of the First international conference on Cryptology in Vietnam
INDOCRYPT'06 Proceedings of the 7th international conference on Cryptology in India
Leakage resilient strong key-insulated signatures in public channel
INTRUST'10 Proceedings of the Second international conference on Trusted Systems
Data security in unattended wireless sensor networks with mobile sinks
Wireless Communications & Mobile Computing
Forward-Secure Identity-Based Public-Key Encryption without Random Oracles
Fundamenta Informaticae
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Security is constantly been infringed by inadvertent loss of secret keys, and as a solution, Dodis, Katz, Xu, and Yung [11], in Eurocrypt 2002, proposed a new paradigm called key-insulated security which provides tolerance against key exposures. Their scheme introduces a “helper key” which is used to periodically update the decryption key. The most attractive part of this scheme is that even if a decryption key of a time period is exposed, the security of the rest of the periods are unaffected. But how does this helper key managed? Can it be done efficiently? As, to alleviate the damage caused by key exposures, decryption key has to be updated at very short intervals, although frequent updating will, in contrary, increase the risk of helper key exposure. In this paper, we propose parallel key-insulated public key encryption in which two distinct helper keys alternately update a decryption key. The helper key of one system is independent from the other. Not only does it decrease the chance of helper key exposures, it also allows frequent updating of the decryption key, and over all, increases the security of the system.