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Multi-signcryption is used when different senders wants to authenticate a single message without revealing it. This paper proposes a multi signcryption scheme in which no pairing is computed on the signcryption stage and the signatures can…

Cryptography and Security · Computer Science 2009-09-09 Munendra Agrawal , Prashant Kushwah , Sunder Lal

Recently, Yang and Tan proposed a certificateless key exchange protocol without pairing, and claimed their scheme satisfies forward secrecy, which means no adversary could derive an already-established session key unless the full user…

Cryptography and Security · Computer Science 2011-12-06 Min Zhang , Jie Zhang , Qiao-Yan Wen , Zheng-Ping Jin , Hua Zhang

Anonymous quantum conference key agreement (AQCKA) allows a group of users within a network to establish a shared cryptographic key without revealing their participation. Although this can be achieved using bi-partite primitives alone, it…

As an essential ingredient of quantum networks, quantum conference key agreement (QCKA) provides unconditional secret keys among multiple parties, which enables only legitimate users to decrypt the encrypted message. Recently, some QCKA…

Quantum Physics · Physics 2021-09-24 Zhao Li , Xiao-Yu Cao , Chen-Long Li , Chen-Xun Weng , Jie Gu , Hua-Lei Yin , Zeng-Bing Chen

Quantum cryptography is a major ingredient of the future quantum internet that promises various secure communication tasks. Quantum conference key agreement (CKA) is an important cryptographic primitive of quantum cryptography, which…

Quantum Physics · Physics 2021-09-28 Xiao-Yu Cao , Yu-shuo Lu , Zhao Li , Jie Gu , Hua-Lei Yin , Zeng-Bing Chen

Public key encryption with equality test (PKEET), proposed by Yang et al. (CT-RSA 2010), is a variant of public key encryption that enables an equality test to determine whether two ciphertexts correspond to the same plaintext. This test…

Cryptography and Security · Computer Science 2025-09-23 Masayuki Tezuka , Keisuke Tanaka

Users of quantum networks can securely communicate via so-called (quantum) conference key agreement --making their identities publicly known. In certain circumstances, however, communicating users demand anonymity. Here, we introduce a…

Millions of devices are going to participate in 5G producing a huge space for security threats. The 5G specification goals require rigid and robust security protocol against such threats. Quantum cryptography is a recently emerged term in…

The increasing deployment of the Internet of Things (IoT) edge devices in modern smart grid environments requires secure and efficient communication protocols specifically designed for resource-constrained environments. However, most…

Cryptography and Security · Computer Science 2025-11-12 Amna Zafar , Muhammad Asfand Hafeez , Arslan Munir

In the smart grid, smart meters, and numerous control and monitoring applications employ bidirectional wireless communication, where security is a critical issue. In key management based encryption method for the smart grid, the Trusted…

Multiagent Systems · Computer Science 2017-09-26 Imtiaz Parvez , Maryamossadat Aghili , Arif Sarwat

We introduce a generalized Anshel-Anshel-Goldfeld (AAG) key establishment protocol (KEP) for magmas. This leads to the foundation of non-associative public-key cryptography (PKC), generalizing the concept of non-commutative PKC. We show…

Cryptography and Security · Computer Science 2012-11-01 Arkadius Kalka

Quantum Conference Key Agreement (CKA) provides a secure method for multi-party communication. A recently developed interference-based prepare-and-measure quantum CKA possesses the advantages of measurement-device-independence, namely,…

Quantum Physics · Physics 2026-04-28 Jinjie Li , Wenyuan Wang , H. F. Chau

Certificateless cryptography can be considered as an intermediate solution to overcome the issues in traditional public key infrastructure (PKI) and identity-based public key cryptography (ID-PKC). There exist a vast number of…

Cryptography and Security · Computer Science 2019-09-25 Nasrollah Pakniat

Quantum conference key agreement enables secure communication among multiple parties by leveraging multipartite entanglement, which is expected to play a crucial role in future quantum networks. However, its practical implementation has…

Quantum Physics · Physics 2026-03-27 Yu-Shuo Lu , Hua-Lei Yin , Yuan-Mei Xie , Yao Fu , Zeng-Bing Chen

Smart grid is a self-sufficient system. That tracks how the energy is used from its source to its final destination. The smart grid can increase the service quality while reducing the consumption of electricity. However, the safety and…

Cryptography and Security · Computer Science 2023-06-16 Shivali Meenakshi

Authentication and Key Agreement (AKA) is a type of security protocol, used in 3GPP mobile networks, that provides two security capabilities. The first capability, called authentication, is to cryptographically assert that a mobile phone or…

Cryptography and Security · Computer Science 2021-07-16 Prajwol Kumar Nakarmi

Computational grids are believed to be the ultimate framework to meet the growing computational needs of the scientific community. Here, the processing power of geographically distributed resources working under different ownerships, having…

Cryptography and Security · Computer Science 2011-11-22 Sugata Sanyal , Rangarajan A. Vasudevan , Ajith Abraham , Marcin Paprzycki

Device-independent quantum key distribution (DI-QKD) enables two remote parties to share an information-theoretically secure key without any assumptions on the inner workings of the devices used. Device-independent conference key agreement…

Post-quantum cryptography is essential for securing digital communications against threats posed by quantum computers. Re-searchers have focused on developing algorithms that can withstand attacks from both classical and quantum computers,…

Cryptography and Security · Computer Science 2025-01-22 Juan Pedro Hecht , Hugo Daniel Scolnik

Unlike current closed systems such as 2nd and 3rd generations where the core network is controlled by a sole network operator, multiple network operators will coexist and manage the core network in Next Generation Networks (NGNs). This open…

Cryptography and Security · Computer Science 2012-08-10 Mahdi Aiash , Glenford Mapp , Aboubaker Lasebae