Random oracles are practical: a paradigm for designing efficient protocols
CCS '93 Proceedings of the 1st ACM conference on Computer and communications security
The Oracle Diffie-Hellman Assumptions and an Analysis of DHIES
CT-RSA 2001 Proceedings of the 2001 Conference on Topics in Cryptology: The Cryptographer's Track at RSA
CRYPTO '00 Proceedings of the 20th 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
Non-Interactive Zero-Knowledge Proof of Knowledge and Chosen Ciphertext Attack
CRYPTO '91 Proceedings of the 11th Annual International Cryptology Conference on Advances in Cryptology
Relations Among Notions of Security for Public-Key Encryption Schemes
CRYPTO '98 Proceedings of the 18th 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
Applications of Multiple Trust Authorities in Pairing Based Cryptosystems
InfraSec '02 Proceedings of the International Conference on Infrastructure Security
Strong Key-Insulated Signature Schemes
PKC '03 Proceedings of the 6th International Workshop on Theory and Practice in Public Key Cryptography: Public Key Cryptography
The HP time vault service: exploiting IBE for timed release of confidential information
WWW '03 Proceedings of the 12th international conference on World Wide Web
Weakly Secret Bit Commitment: Applications to Lotteries and Fair Exchange
CSFW '98 Proceedings of the 11th IEEE workshop on Computer Security Foundations
Time-lock Puzzles and Timed-release Crypto
Time-lock Puzzles and Timed-release Crypto
Encapsulated Key Escrow
A threshold cryptosystem without a trusted party
EUROCRYPT'91 Proceedings of the 10th annual international conference on Theory and application of cryptographic techniques
Chosen-ciphertext security of multiple encryption
TCC'05 Proceedings of the Second international conference on Theory of Cryptography
Provably Secure Timed-Release Public Key Encryption
ACM Transactions on Information and System Security (TISSEC)
General Certificateless Encryption and Timed-Release Encryption
SCN '08 Proceedings of the 6th international conference on Security and Cryptography for Networks
Timed-Release Encryption Revisited
ProvSec '08 Proceedings of the 2nd International Conference on Provable Security
Anonymous Fingerprinting for Predelivery of Contents
Information Security and Cryptology --- ICISC 2008
A Generic Construction of Timed-Release Encryption with Pre-open Capability
IWSEC '09 Proceedings of the 4th International Workshop on Security: Advances in Information and Computer Security
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
ProvSec'10 Proceedings of the 4th international conference on Provable security
Generic construction of strongly secure timed-release public-key encryption
ACISP'11 Proceedings of the 16th Australasian conference on Information security and privacy
Timed encryption with application to deniable key exchange
TAMC'12 Proceedings of the 9th Annual international conference on Theory and Applications of Models of Computation
Forward-Secure Identity-Based Public-Key Encryption without Random Oracles
Fundamenta Informaticae
Strong security notions for timed-release public-key encryption revisited
ICISC'11 Proceedings of the 14th international conference on Information Security and Cryptology
Information-Theoretic timed-release security: key-agreement, encryption, and authentication codes
ICITS'12 Proceedings of the 6th international conference on Information Theoretic Security
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In this paper we consider two security notions related to Identity Based Encryption: Key-insulated public key encryption, introduced by Dodis, Katz, Xu and Yung; and Timed-Release Public Key cryptography, introduced independently by May and Rivest, Shamir and Wagner. We first formalize the notion of secure timed-release public key encryption, and show that, despite several differences in its formulation, it is equivalent to strongly key-insulated public key encryption (with optimal threshold and random access key updates). Next, we introduce the concept of an authenticated timed-release cryptosystem, briefly consider generic constructions, and then give a construction based on a single primitive which is efficient and provably secure.