A public key cryptosystem and a signature scheme based on discrete logarithms
Proceedings of CRYPTO 84 on Advances in cryptology
Public-key cryptosystems provably secure against chosen ciphertext attacks
STOC '90 Proceedings of the twenty-second annual ACM symposium on Theory of computing
A Pseudorandom Generator from any One-way Function
SIAM Journal on Computing
SIAM Journal on Computing
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
Honest Verifier vs Dishonest Verifier in Public Cain Zero-Knowledge Proofs
CRYPTO '95 Proceedings of the 15th Annual International Cryptology Conference on Advances in Cryptology
A Practical Public Key Cryptosystem Provably Secure Against Adaptive Chosen Ciphertext Attack
CRYPTO '98 Proceedings of the 18th Annual International Cryptology Conference on Advances in Cryptology
Universal Hash Proofs and a Paradigm for Adaptive Chosen Ciphertext Secure Public-Key Encryption
EUROCRYPT '02 Proceedings of the International Conference on the Theory and Applications of Cryptographic Techniques: Advances in Cryptology
On the Security of ElGamal Based Encryption
PKC '98 Proceedings of the First International Workshop on Practice and Theory in Public Key Cryptography: Public Key Cryptography
Towards Practical Public Key Systems Secure Against Chosen Ciphertext Attacks
CRYPTO '91 Proceedings of the 11th Annual International Cryptology Conference on Advances in Cryptology
A CCA Secure Hybrid Damgård's ElGamal Encryption
ProvSec '08 Proceedings of the 2nd International Conference on Provable Security
Hybrid Damgård Is CCA1-Secure under the DDH Assumption
CANS '08 Proceedings of the 7th International Conference on Cryptology and Network Security
Practical Chosen Ciphertext Secure Encryption from Factoring
EUROCRYPT '09 Proceedings of the 28th Annual International Conference on Advances in Cryptology: the Theory and Applications of Cryptographic Techniques
The Kurosawa--Desmedt key encapsulation is not chosen-ciphertext secure
Information Processing Letters
Public-key cryptosystems based on composite degree residuosity classes
EUROCRYPT'99 Proceedings of the 17th international conference on Theory and application of cryptographic techniques
Using hash functions as a hedge against chosen ciphertext attack
EUROCRYPT'00 Proceedings of the 19th international conference on Theory and application of cryptographic techniques
Secure hybrid encryption from weakened key encapsulation
CRYPTO'07 Proceedings of the 27th annual international cryptology conference on Advances in cryptology
A new security proof for damgård’s elgamal
CT-RSA'06 Proceedings of the 2006 The Cryptographers' Track at the RSA conference on Topics in Cryptology
Practical Chosen Ciphertext Secure Encryption from Factoring
EUROCRYPT '09 Proceedings of the 28th Annual International Conference on Advances in Cryptology: the Theory and Applications of Cryptographic Techniques
Survey: leakage resilience and the bounded retrieval model
ICITS'09 Proceedings of the 4th international conference on Information theoretic security
Twin hybrid ElGamal encryption over signed quadratic residue groups
WASA'10 Proceedings of the 5th international conference on Wireless algorithms, systems, and applications
Circular and leakage resilient public-key encryption under subgroup indistinguishability
CRYPTO'10 Proceedings of the 30th annual conference on Advances in cryptology
High-performance modular multiplication on the cell processor
WAIFI'10 Proceedings of the Third international conference on Arithmetic of finite fields
Chosen-Ciphertext Security via Correlated Products
SIAM Journal on Computing
Correlated-input secure hash functions
TCC'11 Proceedings of the 8th conference on Theory of cryptography
On the CCA1-security of Elgamal and Damgård's Elgamal
Inscrypt'10 Proceedings of the 6th international conference on Information security and cryptology
TCC'10 Proceedings of the 7th international conference on Theory of Cryptography
Public-Key encryption in the bounded-retrieval model
EUROCRYPT'10 Proceedings of the 29th Annual international conference on Theory and Applications of Cryptographic Techniques
Encryption schemes secure against chosen-ciphertext selective opening attacks
EUROCRYPT'10 Proceedings of the 29th Annual international conference on Theory and Applications of Cryptographic Techniques
Public key encryption without random oracle made truly practical
ICICS'09 Proceedings of the 11th international conference on Information and Communications Security
TCC'12 Proceedings of the 9th international conference on Theory of Cryptography
TCC'12 Proceedings of the 9th international conference on Theory of Cryptography
Public key encryption without random oracle made truly practical
Computers and Electrical Engineering
PKC'12 Proceedings of the 15th international conference on Practice and Theory in Public Key Cryptography
Leakage-resilience of stateless/stateful public-key encryption from hash proofs
ACISP'12 Proceedings of the 17th Australasian conference on Information Security and Privacy
A robust and plaintext-aware variant of signed elgamal encryption
CT-RSA'13 Proceedings of the 13th international conference on Topics in Cryptology
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We present a new approach to the design of IND-CCA2 secure hybrid encryption schemes in the standard model. Our approach provides an efficient generic transformation from 1-universal to 2-universal hash proof systems. The transformation involves a randomness extractor based on a 4-wise independent hash function as the key derivation function. Our methodology can be instantiated with efficient schemes based on standard intractability assumptions such as Decisional Diffie-Hellman, Quadratic Residuosity, and Paillier's Decisional Composite Residuosity. Interestingly, our framework also allows to prove IND-CCA2 security of a hybrid version of 1991's Damgård's ElGamal public-key encryption scheme under the DDH assumption.