Results 31 to 40 of about 20,096 (290)

Key-Privacy in Public-Key Encryption [PDF]

open access: yes, 2001
We consider a novel security requirement of encryption schemes that we call "key-privacy" or "anonymity". It asks that an eavesdropper in possession of a ciphertext not be able to tell which specific key, out of a set of known public keys, is the one under which the ciphertext was created, meaning the receiver is anonymous from the point of view of the
Mihir Bellare   +3 more
openaire   +1 more source

Certificateless Searchable Encryption Scheme in Multi-User Environment

open access: yesCryptography, 2022
Searchable encryption technology enables users to access data that has been made publicly encrypted without divulging the original content. The majority of the currently available multi-user certificateless searchable encryption technologies are based on
Tao Feng, Jiewen Si
doaj   +1 more source

New leakage-resilient CCA-secure public key encryption

open access: yesJournal of Mathematical Cryptology, 2013
This paper shows a generic method of constructing CCA-secure public key encryption schemes with leakage-resilience on the secret key. It is based on a new kind of universal2 hash proof system which accepts an auxiliary parameter.
Kurosawa Kaoru   +2 more
doaj   +1 more source

A New Technique in Rank Metric Code-Based Encryption

open access: yesCryptography, 2018
We propose a rank metric codes based encryption based on the hard problem of rank syndrome decoding problem. We propose a new encryption with a public key matrix by considering the adding of a random distortion matrix over F q m of full column ...
Terry Shue Chien Lau, Chik How Tan
doaj   +1 more source

Leveled Certificateless Fully Homomorphic Encryption Schemes From Learning With Errors

open access: yesIEEE Access, 2020
Fully homomorphic encryption (FHE) is a form of public-key encryption that allows the computation of arbitrary functions on encrypted data without decrypting the data. As a result, it is a useful tool with numerous applications.
Mingxiang Li
doaj   +1 more source

Survey on public key encryption with equality test

open access: yes网络与信息安全学报, 2018
As one of the important methods of solving the problem of computation over encrypted data under multiple public keys in cloud environment,public key encryption with equality test (PKEET) supports to check whether two ciphertexts encrypted under (possibly)
Yuanhao WANG,Hongbo LI,Yuzhao CUI,Qingwen GUO,Qiong HUANG
doaj   +3 more sources

Decryption speed up of ElGamal with composite modulus.

open access: yesPLoS ONE, 2020
Public key cryptosystems such as RSA, rebalanced RSA and ElGamal have the disadvantage of serious asymmetry between encryption and decryption speed.
GyuChol Kim, SuChol Li
doaj   +1 more source

CCA-Secure Deterministic Identity-Based Encryption Scheme [PDF]

open access: yesJournal of Universal Computer Science, 2019
Deterministic public-key encryption, encrypting a plaintext into a unique ciphertext without involving any randomness, was introduced by Bellare, Boldyreva, and O'Neill (CRYPTO 2007) as a realistic alternative to some inherent drawbacks in randomized ...
Meijuan Huang   +5 more
doaj   +3 more sources

Public-Key Encryption In The Standard Model Against Strong Leakage Adversary

open access: yes, 2020
Over the years, security against adaptively chosen-ciphertext attacks (CCA2) is considered as the strongest security definition for public-key encryption schemes.
Alawatugoda, Janaka
core   +1 more source

Practical identity-based key agreement for secure communication in sensor networks [PDF]

open access: yes, 2009
Despite much research effort key distribution in Wireless Sensor Networks (WSNs) still remains an open problem. In this paper we address this issue by proposing a simple identity- based key agreement scheme. Our protocol uses Identity-Based Cryptography (
Martin Collier   +3 more
core   +1 more source

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