scholarly journals A Novel Design of Membership Authentication and Group Key Establishment Protocol

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Lein Harn ◽  
Ching-Fang Hsu
Keyword(s):  
Group Communication ◽  
Group Communications ◽  
Key Establishment ◽  
Group Key ◽  
Multiple Group ◽  
Basic Protocol ◽  
New Type ◽  
Group Authentication ◽  
Group Key Establishment ◽  
Novel Design

A new type of authentication, called group authentication, has been proposed recently which can authenticate all users belonging to the same group at once in a group communication. However, the group authentication can only detect the existence of nonmembers but cannot identify who are the nonmembers. Furthermore, in a group communication, it needs not only to authenticate memberships but also to establish a group key among all members. In this paper, we propose a novel design to provide both membership authentication and group key establishment. Our proposed membership authentication can not only detect nonmembers but also identify who are the nonmembers. We first propose a basic membership authentication and key establishment protocol which can only support one-time group communication. Then, we extend the basic protocol to support multiple group communications. Our design is unique since tokens of users issued by a group manager (GM) during registration are used for both membership authentication and group key establishment.

scholarly journals Lightweight Noninteractive Membership Authentication and Group Key Establishment for WSNs

2020 ◽  
Vol 2020 ◽  
pp. 1-9 ◽  
Author(s):  
Qi Cheng ◽  
Chingfang Hsu ◽  
Lein Harn
Keyword(s):  
Communication Networks ◽  
User Authentication ◽  
Secure Communications ◽  
Key Establishment ◽  
Group Key ◽  
Security Services ◽  
Potential Capacity ◽  
Secure Group Communications ◽  
Group Key Establishment ◽  
Novel Design

Wireless sensor networks (WSNs) exhibit their potential capacity in the next generation of mobile communication networks and wireless systems (5G). Collected data in WSNs are different from most data transmitted in digital communication applications. Most collected data in WSNs contain only few bits of information. Conventional protocols are not suitable for WSNs since this environment needs more flexible and lightweight protocols for secure group communications. Hence, how to realize the mutual secure and lightweight communication is a big challenge for WSNs. User authentication and key establishment are two fundamental security services in secure communications for WSNs. In this paper, we propose a novel design which embeds the function of membership authentication and group key establishment in WSNs. By using an asymmetric bivariate polynomial, membership authentication and pairwise shared keys distribution are realized. Then, each member mixes his/her input with pairwise shared keys with other members and releases the encrypted value in a broadcast channel. After collecting all released values, each member can compute the group key efficiently. Our proposal is noninteractive and lightweight. As it enjoys low computation and communication costs compared with the state-of-the-art cryptographic solutions, this design is more suitable for efficient membership authentication and group key establishment in WSNs.

scholarly journals AN AUTHENTICATION FOR GROUP COMMUNICATIONS IN AD-HOC NETWORKS

2021 ◽  
Vol 9 (2) ◽  
pp. 396-404
Author(s):  
Peter Akubo Alabi
Keyword(s):  
Support Group ◽  
Ad Hoc ◽  
Group Communication ◽  
User Authentication ◽  
Authentication Protocol ◽  
Group Communications ◽  
New Type ◽  
Single User ◽  
Group Authentication ◽  
Hoc Networks

Group communication implies a many-to-many communication and it goes beyond both one-to-one communication (i.e., unicast) and one-to-many communication (i.e., multicast). Unlike most user authentication protocols that authenticate a single user each time, we propose a new type of authentication, called group authentication that authenticates all users in a group at once. The group authentication protocol is specially designed to support group communications. There is a group manager who is responsible to manage the group communication. During registration, each user of a group obtains an unique token from the group manager. Users present their tokens to determine whether they all belong to the same group or not. The group authentication protocol allows users to reuse their tokens without compromising the security of tokens. In addition, the group authentication can protect the identity of each user.

scholarly journals Cryptanalysis of a Group Key Establishment Protocol

Symmetry ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 332
Author(s):  
Jorge Martínez Carracedo ◽  
Adriana Suárez Corona
Keyword(s):  
Forward Secrecy ◽  
Key Establishment ◽  
Group Key ◽  
Active Attack ◽  
Group Key Establishment

In this paper, we analyze the security of a group key establishment scheme proposed by López-Ramos et al. This proposal aims at allowing a group of users to agree on a common key. We present several attacks against the security of the proposed protocol. In particular, an active attack is presented, and it is also proved that the protocol does not provide forward secrecy.

scholarly journals From Key Encapsulation to Authenticated Group Key Establishment—A Compiler for Post-Quantum Primitives †

Entropy ◽  
2019 ◽  
Vol 21 (12) ◽  
pp. 1183 ◽  
Author(s):  
Edoardo Persichetti ◽  
Rainer Steinwandt ◽  
Adriana Suárez Corona
Keyword(s):  
Quantum Cryptography ◽  
Signature Scheme ◽  
Key Establishment ◽  
Group Key ◽  
Generic Construction ◽  
Key Encapsulation Mechanism ◽  
Authenticated Group Key ◽  
Post Quantum Cryptography ◽  
Group Key Establishment

Assuming the availability of an existentially unforgeable signature scheme and an (IND- CCA secure) key encapsulation mechanism, we present a generic construction for group key establishment. The construction is designed with existing proposals for post-quantum cryptography in mind. Applied with such existing proposals and assuming their security, we obtain a quantum-safe three-round protocol for authenticated group key establishment that requires only one signature per protocol participant.

scholarly journals Building Group Key Establishment on Group Theory: A Modular Approach

Symmetry ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 197
Author(s):  
Jens-Matthias Bohli ◽  
María I. González Vasco ◽  
Rainer Steinwandt
Keyword(s):  
Protocol Design ◽  
Key Establishment ◽  
Group Key ◽  
Common Reference ◽  
Ring Configuration ◽  
Diffie Hellman ◽  
Left And Right ◽  
The Common ◽  
Group Key Establishment ◽  
Common Reference String

A group key establishment protocol is presented and proven secure in the common reference string mode. The protocol builds on a group-theoretic assumption, and a concrete example can be obtained with a decision Diffie–Hellman assumption. The protocol is derived from a two-party solution by means of a protocol compiler presented by Abdalla et al. at TCC 2007, evidencing the possibility of meaningfully integrating cryptographic and group-theoretic tools in cryptographic protocol design. This compiler uses a standard ring configuration, where all users behave symmetrically, exchanging keys with their left and right neighbor, which are later combined to yield a shared group key.

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