Zero-Knowledge Protocols for Code-Based Public-Key Encryption

2015 ◽  
Vol E98.A (10) ◽  
pp. 2139-2151 ◽  
Author(s):  
Rong HU ◽  
Kirill MOROZOV ◽  
Tsuyoshi TAKAGI
Keyword(s):  
Public Key ◽  
Public Key Encryption ◽  
Zero Knowledge

scholarly journals Non-interactive zero-knowledge proof scheme from RLWE-based key exchange

PLoS ONE ◽  
2021 ◽  
Vol 16 (8) ◽  
pp. e0256372
Author(s):  
Shaofen Xie ◽  
Wang Yao ◽  
Faguo Wu ◽  
Zhiming Zheng
Keyword(s):  
Hash Function ◽  
Key Exchange ◽  
Public Key ◽  
Public Key Encryption ◽  
Zero Knowledge ◽  
Proof Schemes ◽  
Proof Scheme ◽  
Verification Time ◽  
Public Verification ◽  
Zero Knowledge Proof

Lattice-based non-interactive zero-knowledge proof has been widely used in one-way communication and can be effectively applied to resist quantum attacks. However, lattice-based non-interactive zero-knowledge proof schemes have long faced and paid more attention to some efficiency issues, such as proof size and verification time. In this paper, we propose the non-interactive zero-knowledge proof schemes from RLWE-based key exchange by making use of the Hash function and public-key encryption. We then show how to apply the proposed schemes to achieve the fixed proof size and rapid public verification. Compared with previous approaches, our schemes can realize better effectiveness in proof size and verification time. In addition, the proposed schemes are secure from completeness, soundness, and zero-knowledge.

Cryptanalysis on an Improved Version of ElGamal-Like Public-Key Encryption Scheme for Encrypting Large Messages

Informatica ◽  
2012 ◽  
Vol 23 (4) ◽  
pp. 537-562 ◽  
Author(s):  
Ting-Yi Chang ◽  
Min-Shiang Hwang ◽  
Wei-Pang Yang
Keyword(s):  
Public Key ◽  
Encryption Scheme ◽  
Public Key Encryption

Disavowable Public Key Encryption with Non-Interactive Opening

2015 ◽  
Vol E98.A (12) ◽  
pp. 2446-2455 ◽  
Author(s):  
Ai ISHIDA ◽  
Keita EMURA ◽  
Goichiro HANAOKA ◽  
Yusuke SAKAI ◽  
Keisuke TANAKA
Keyword(s):  
Public Key ◽  
Public Key Encryption

Design and Analysis of a Provable Secure Multi-Recipient Public Key Encryption Scheme

2009 ◽  
Vol 20 (10) ◽  
pp. 2907-2914 ◽  
Author(s):  
Liao-Jun PANG ◽  
Hui-Xian LI ◽  
Li-Cheng JIAO ◽  
Yu-Min WANG
Keyword(s):  
Public Key ◽  
Encryption Scheme ◽  
Public Key Encryption

Public-Key Encryption

2017 ◽  
Author(s):  
Keith M. Martin
Keyword(s):  
Elliptic Curve ◽  
Public Key Cryptography ◽  
Public Key ◽  
Public Key Encryption ◽  
Hybrid Encryption ◽  
Public Key Cryptosystems ◽  
Encryption And Decryption ◽  
Encryption Schemes ◽  
Hard Problems ◽  
Set Up

In this chapter, we introduce public-key encryption. We first consider the motivation behind the concept of public-key cryptography and introduce the hard problems on which popular public-key encryption schemes are based. We then discuss two of the best-known public-key cryptosystems, RSA and ElGamal. For each of these public-key cryptosystems, we discuss how to set up key pairs and perform basic encryption and decryption. We also identify the basis for security for each of these cryptosystems. We then compare RSA, ElGamal, and elliptic-curve variants of ElGamal from the perspectives of performance and security. Finally, we look at how public-key encryption is used in practice, focusing on the popular use of hybrid encryption.

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