Equipping smart devices with public key signatures

2007 ◽  
Vol 7 (1) ◽  
pp. 3 ◽  
Author(s):  
Xuhua Ding ◽  
Daniele Mazzocchi ◽  
Gene Tsudik
Keyword(s):  
Public Key ◽  
Smart Devices ◽  
Public Key Signatures

Public key signatures in the multi-user setting

2002 ◽  
Vol 83 (5) ◽  
pp. 263-266 ◽  
Author(s):  
S. Galbraith ◽  
J. Malone-Lee ◽  
N.P. Smart
Keyword(s):  
Public Key ◽  
Public Key Signatures

Recent Developments in Cryptography

2018 ◽  
pp. 1-22 ◽  
Author(s):  
Kannan Balasubramanian
Keyword(s):  
Public Key Cryptography ◽  
Public Key ◽  
Discrete Logarithms ◽  
Public Key Cryptosystems ◽  
Multivariate Cryptography ◽  
Public Keys ◽  
Recent Developments ◽  
Key Exchange Protocols ◽  
Lattice Based Cryptography ◽  
Public Key Signatures

The field of cryptography has seen enormous changes ever since the invention of Public Key Cryptography by Diffie and Hellman. The algorithms for complex problems like integer factorization, Discrete Logarithms and Elliptic Curve Discrete Logarithms have improved tremendously making way for attackers to crack cryptosystems previously thought were unsolvable. Newer Methods have also been invented like Lattice based cryptography, Code based cryptography, Hash based cryptography and Multivariate cryptography. With the invention of newer public Key cryptosystems, the signature systems making use of public key signatures have enabled authentication of individuals based on public keys. The Key Distribution mechanisms including the Key Exchange protocols and Public Key infrastructure have contributed to the development of algorithms in this area. This chapter also surveys the developments in the area of identity Based Cryptography, Group Based Cryptography and Chaos Based Cryptography.

scholarly journals A Lightweight Authentication and Key Agreement Schemes for IoT Environments

Sensors ◽  
2020 ◽  
Vol 20 (18) ◽  
pp. 5350
Author(s):  
Dae-Hwi Lee ◽  
Im-Yeong Lee
Keyword(s):  
Key Agreement ◽  
Essential Element ◽  
Public Key Cryptography ◽  
Security Requirements ◽  
Public Key ◽  
Smart Devices ◽  
The Internet ◽  
Session Key ◽  
Authentication And Key Agreement ◽  
Lightweight Authentication

In the Internet of Things (IoT) environment, more types of devices than ever before are connected to the internet to provide IoT services. Smart devices are becoming more intelligent and improving performance, but there are devices with little computing power and low storage capacity. Devices with limited resources will have difficulty applying existing public key cryptography systems to provide security. Therefore, communication protocols for various kinds of participating devices should be applicable in the IoT environment, and these protocols should be lightened for resources-restricted devices. Security is an essential element in the IoT environment, so for secure communication, it is necessary to perform authentication between the communication objects and to generate the session key. In this paper, we propose two kinds of lightweight authentication and key agreement schemes to enable fast and secure authentication among the objects participating in the IoT environment. The first scheme is an authentication and key agreement scheme with limited resource devices that can use the elliptic curve Qu–Vanstone (ECQV) implicit certificate to quickly agree on the session key. The second scheme is also an authentication and key agreement scheme that can be used more securely, but slower than first scheme using certificateless public key cryptography (CL-PKC). In addition, we compare and analyze existing schemes and propose new schemes to improve security requirements that were not satisfactory.

Public Key Encryption With Equality Test for Industrial Internet of Things Based on Near-Ring

2021 ◽  
Vol 17 (3) ◽  
pp. 25-45
Author(s):  
Muthukumaran V. ◽  
Manimozhi I. ◽  
Praveen Sundar P. V. ◽  
Karthikeyan T. ◽  
Magesh Gopu
Keyword(s):  
Internet Of Things ◽  
Quantum Algorithm ◽  
Random Oracle Model ◽  
Public Key ◽  
Smart Devices ◽  
Type I ◽  
Public Key Encryption ◽  
Industrial Internet Of Things ◽  
Industrial Internet ◽  
Equality Test

Organizations have moved from the conventional industries to smart industries by embracing the approach of industrial internet of things (IIoT), which has provided an avenue for the integration of smart devices and communication technologies. In this context, this work presents a public key encryption with equality test based on DLP with decomposition problems over near-ring. The proposed method is highly secure, and it solves the problem of quantum algorithm attacks in industrial internet of thing systems. Further, the proposed system is highly secure, and it prevents the chosen-ciphertext attack in type-I adversary and it is indistinguishable against the random oracle model for the type-II adversary. The proposed scheme is highly secure, and the security analysis measures are comparatively stronger than existing techniques.

Recent Developments in Cryptography

2018 ◽  
pp. 1272-1293
Author(s):  
Kannan Balasubramanian
Keyword(s):  
Public Key Cryptography ◽  
Public Key ◽  
Discrete Logarithms ◽  
Public Key Cryptosystems ◽  
Multivariate Cryptography ◽  
Public Keys ◽  
Recent Developments ◽  
Key Exchange Protocols ◽  
Lattice Based Cryptography ◽  
Public Key Signatures

The field of cryptography has seen enormous changes ever since the invention of Public Key Cryptography by Diffie and Hellman. The algorithms for complex problems like integer factorization, Discrete Logarithms and Elliptic Curve Discrete Logarithms have improved tremendously making way for attackers to crack cryptosystems previously thought were unsolvable. Newer Methods have also been invented like Lattice based cryptography, Code based cryptography, Hash based cryptography and Multivariate cryptography. With the invention of newer public Key cryptosystems, the signature systems making use of public key signatures have enabled authentication of individuals based on public keys. The Key Distribution mechanisms including the Key Exchange protocols and Public Key infrastructure have contributed to the development of algorithms in this area. This chapter also surveys the developments in the area of identity Based Cryptography, Group Based Cryptography and Chaos Based Cryptography.

scholarly journals Server-aided Public Key Signatures for Diverse Network Devices

2020 ◽  
Vol 1 (1) ◽  
pp. 57-63
Author(s):  
William Asiedu Asiedu ◽  
K. Osei-Boateng ◽  
John Rajan
Keyword(s):  
Digital Signature ◽  
Public Key Infrastructure ◽  
Public Key ◽  
Signature Generation ◽  
Resource Limited ◽  
Limited Power ◽  
Mobile Clients ◽  
Public Key Signatures ◽  
High Storage ◽  
Constrained Devices

One of the main challenges of securing effective computation in diverse network devices tends to be a limitation of their computational power. Server assisted signature scheme was recently presented as nonrepudiation service for mobile and constrained devices. They all tend to have a feature in common: limited computational capabilities and equally limited power (as most operate on batteries). The scheme suffered with high storage requirements and memory requirements for the mobile clients. This makes them ill-suited for public key signatures. This paper examines practical and conceptual implications of using Server-Aided Signatures (SAS) for these devices. SAS is a signature method that relies on partially-trusted servers for generating (normally expensive) public key signatures for regular users. Although the primary goal is to aid small, resource- limited devices in signature generation, SAS also fast certificate revocation, signature causality and with reliable timestamping. Keywords: Public key infrastructure; Digital signature; Certificate authority.

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