Stronger Security Model for Public-Key Encryption with Equality Test

2013 ◽  
pp. 65-82 ◽  
Author(s):  
Yao Lu ◽  
Rui Zhang ◽  
Dongdai Lin
Keyword(s):  
Public Key ◽  
Security Model ◽  
Public Key Encryption ◽  
Equality Test

Probabilistic Public Key Encryption with Equality Test

2010 ◽  
pp. 119-131 ◽  
Author(s):  
Guomin Yang ◽  
Chik How Tan ◽  
Qiong Huang ◽  
Duncan S. Wong
Keyword(s):  
Public Key ◽  
Public Key Encryption ◽  
Equality Test

scholarly journals Public key encryption with equality test from generic assumptions in the random oracle model

2019 ◽  
Vol 500 ◽  
pp. 15-33 ◽  
Author(s):  
Hyung Tae Lee ◽  
San Ling ◽  
Jae Hong Seo ◽  
Huaxiong Wang
Keyword(s):  
Random Oracle Model ◽  
Random Oracle ◽  
Public Key ◽  
Public Key Encryption ◽  
Equality Test

PKE-ET-HS: Public Key Encryption with Equality Test for Heterogeneous Systems in IoT

2020 ◽  
Vol 113 (1) ◽  
pp. 313-335
Author(s):  
Rashad Elhabob ◽  
Yanan Zhao ◽  
Alzubair Hassan ◽  
Hu Xiong
Keyword(s):  
Heterogeneous Systems ◽  
Public Key ◽  
Public Key Encryption ◽  
Equality Test

scholarly journals CCA2 Attack and Modification of Huanget al.’s Public Key Encryption with Authorized Equality Test

2016 ◽  
Vol 59 (11) ◽  
pp. 1689-1694 ◽  
Author(s):  
Hyung Tae Lee ◽  
San Ling ◽  
Jae Hong Seo ◽  
Huaxiong Wang
Keyword(s):  
Public Key ◽  
Public Key Encryption ◽  
Equality Test

Pairing-Free Identity-Based Encryption with Authorized Equality Test in Online Social Networks

2019 ◽  
Vol 30 (04) ◽  
pp. 647-664
Author(s):  
Libing Wu ◽  
Yubo Zhang ◽  
Kim-Kwang Raymond Choo ◽  
Debiao He
Keyword(s):  
Social Networking ◽  
Online Social Networks ◽  
Keyword Search ◽  
Public Key ◽  
Encryption Scheme ◽  
Public Key Encryption ◽  
Identity Based Encryption ◽  
Identity Based ◽  
Equality Test ◽  
Chosen Ciphertext Attack

Online social networking applications have become more and more popular in the advance of the technological age. Much of our personal information has been disclosed in social networking activities and privacy-preserving still remains a research challenge in social network. Public key encryption scheme with equality test(PKEET), which is an extension of public key encryption with keyword search (PEKS), seems to be a solution. PKEET enables the tester to check whether two given ciphertexts are derived from the same plaintext. Recently, Zhu et al. proposed a pairing-free public key encryption scheme with equality test based on the traditional public key cryptosystem. However, it suffers from certificates management issue. In this paper, we propose a pairing-free identity-based encryption scheme with authorized equality test(PF-IBEAET). The PF-IBEAET scheme also provides fine-grained authorizations. We prove that the scheme is one way secure against chosen identity and chosen ciphertext attack (OW-ID-CCA) and indistinguishable against chosen-identity and chosen-ciphertext attack (IND-ID-CCA) in the random oracle model (ROM). Performance analysis shows that the scheme achieves a better performance than similar schemes.

Group public key encryption with equality test against offline message recovery attack

2020 ◽  
Vol 510 ◽  
pp. 16-32 ◽  
Author(s):  
Yunhao Ling ◽  
Sha Ma ◽  
Qiong Huang ◽  
Ximing Li ◽  
Yunzhi Ling
Keyword(s):  
Public Key ◽  
Public Key Encryption ◽  
Message Recovery ◽  
Equality Test

Nonce-Based Key Agreement Protocol Against Bad Randomness

2019 ◽  
Vol 30 (04) ◽  
pp. 619-633
Author(s):  
Burong Kang ◽  
Xinyu Meng ◽  
Lei Zhang ◽  
Yinxia Sun
Keyword(s):  
Digital Signature ◽  
Key Agreement ◽  
Public Key ◽  
Security Model ◽  
Public Key Encryption ◽  
Signature Schemes ◽  
Key Agreement Protocol ◽  
Agreement Protocols

Most of the existing cryptographic schemes, e.g., key agreement protocol, call for good randomness. Otherwise, the security of these cryptographic schemes cannot be fully guaranteed. Nonce-based cryptosystem is recently introduced to improve the security of public key encryption and digital signature schemes by ensuring security when randomness fails. In this paper, we first investigate the security of key agreement protocols when randomness fails. Then we define the security model for nonce-based key agreement protocols and propose a nonce-based key agreement protocol that protects against bad randomness. The new protocol is proven to be secure in our proposed security model.

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