An Improved Authentication and Security on Efficient Generalized Group Key Agreement Using Hyper Elliptic Curve Based Public Key Cryptography for IoT Health Care System

2019 ◽  
Vol 43 (8) ◽  
Author(s):  
S. Kavitha ◽  
P. J. A. Alphonse ◽  
Y. Venkataramana Reddy
Keyword(s):  
Health Care ◽  
Elliptic Curve ◽  
Health Care System ◽  
Key Agreement ◽  
Public Key Cryptography ◽  
Public Key ◽  
Group Key ◽  
Group Key Agreement ◽  
Hyper Elliptic Curve ◽  
Authentication And Security

An Improved Group Key Agreement Based on Elliptic Curve

2010 ◽  
Author(s):  
Guangming Yang ◽  
Qi Wang ◽  
Qian Zhu ◽  
Jian Xu ◽  
Jin Chang ◽  
...  
Keyword(s):  
Elliptic Curve ◽  
Key Agreement ◽  
Group Key ◽  
Group Key Agreement

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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