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Related papers: Authentication by Witness Functions

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We propose a methodology for verifying security properties of network protocols at design level. It can be separated in two main parts: context and requirements analysis and informal verification; and formal representation and procedural…

Cryptography and Security · Computer Science 2013-10-29 Jesus Diaz , David Arroyo , Francisco B. Rodriguez

Verification of entanglement is an important tool to characterize sources and devices for use in quantum computing and communication applications. In a vast majority of experiments entanglement witnesses (EW) are used in order to prove the…

Quantum Physics · Physics 2012-07-02 Juan Miguel Arrazola , Oleg Gittsovich , Norbert Lütkenhaus

We present a rigorous mathematical framework for verifying effective entanglement in a Coherent One-Way (COW) quantum key distribution setup. In particular, we introduce a two-parameter family of entanglement witnesses, identify the…

Quantum Physics · Physics 2025-12-02 F. Rezazadeh , A. Mani , M. Khodabandeh , M. Jaberi , S. A. Madani

Biometrics systems have been used in a wide range of applications and have improved people authentication. Signature verification is one of the most common biometric methods with techniques that employ various specifications of a signature.…

Computer Vision and Pattern Recognition · Computer Science 2016-11-15 Mohsen Fayyaz , Mohammad Hajizadeh_Saffar , Mohammad Sabokrou , Mahmood Fathy

Formal verification is crucial for ensuring the robustness of security protocols against adversarial attacks. The Needham-Schroeder protocol, a foundational authentication mechanism, has been extensively studied, including its integration…

Cryptography and Security · Computer Science 2025-08-29 Kangfeng Ye , Roberto Metere , Jim Woodcock , Poonam Yadav

Entanglement is one of the most prominent features of quantum mechanics and serves as an essential resource in quantum information science. Therefore, the certification of entanglement is crucial for quantum information processing tasks.…

Quantum Physics · Physics 2025-04-10 Jing-Tao Qiu , Wei-Jie Jiang , Xiao-Dong Yu

Automated verification has become an essential part in the security evaluation of cryptographic protocols. In this context privacy-type properties are often modelled by indistinguishability statements, expressed as behavioural equivalences…

Cryptography and Security · Computer Science 2024-08-07 Vincent Cheval , Steve Kremer , Itsaka Rakotonirina

Entanglement witnesses are invaluable for efficient quantum entanglement certification without the need for expensive quantum state tomography. Yet, standard entanglement witnessing requires multiple measurements and its bounds can be…

Quantum Physics · Physics 2017-03-22 Farid Shahandeh , Martin Ringbauer , Juan C. Loredo , Timothy C. Ralph

Most current self-sovereign identity systems may be categorized as strictly objective, consisting of cryptographically signed statements issued by trusted third party attestors. This failure to provide an input for subjectivity accounts for…

Cryptography and Security · Computer Science 2020-10-14 Divya Siddarth , Sergey Ivliev , Santiago Siri , Paula Berman

Numerous exploits of client-server protocols and applications involve modifying clients to behave in ways that untampered clients would not, such as crafting malicious packets. In this paper, we demonstrate practical verification of a…

Cryptography and Security · Computer Science 2016-03-15 Andrew Chi , Robert Cochran , Marie Nesfield , Michael K. Reiter , Cynthia Sturton

We establish fundamental and general techniques for formal verification of quantum protocols. Quantum protocols are novel communication schemes involving the use of quantum-mechanical phenomena for representation, storage and transmission…

Quantum Physics · Physics 2007-05-23 Simon Gay , Rajagopal Nagarajan , Nikolaos Papanikolaou

This paper surveys how formal verification can be used to prove the correctness of ad hoc routing protocols, which are fundamental infrastructure of wireless sensor networks. The existing techniques fall into two classes: verification on…

Networking and Internet Architecture · Computer Science 2014-08-27 Zhe Chen , Daqiang Zhang , Rongbo Zhu , Yinxue Ma , Ping Yin , Feng Xie

Formal verification has recently been increasingly used to prove the correctness and security of many applications. It is attractive because it can prove the absence of errors with the same certainty as mathematicians proving theorems.…

Cryptography and Security · Computer Science 2025-09-09 Carolina Carreira , João F. Ferreira , Alexandra Mendes , Nicolas Christin

Our lives become increasingly dependent on safety- and security-critical systems, so formal techniques are advocated for engineering such systems. One of such techniques is validation obligations that enable formalizing requirements early…

Logic in Computer Science · Computer Science 2022-07-08 Sebastian Stock , Atif Mashkoor , Alexander Egyed

Passive operating system fingerprinting reveals valuable information to the defenders of heterogeneous private networks; at the same time, attackers can use fingerprinting to reconnoiter networks, so defenders need obfuscation techniques to…

Cryptography and Security · Computer Science 2017-06-27 Blake Anderson , David McGrew

The verification of security protocols is essential, in order to ensure the absence of potential attacks. However, verification results are only valid with respect to the assumptions under which the verification was performed. These…

Logic in Computer Science · Computer Science 2024-11-12 Nisansala P. Yatapanage , Cliff B. Jones

Blind signature schemes enable a useful protocol that guarantee the anonymity of the participants while Signcryption offers authentication of message and confidentiality of messages at the same time and more efficiently. In this paper, we…

Cryptography and Security · Computer Science 2007-05-23 Amit K Awasthi , Sunder Lal

Protocol narrations are widely used in security as semi-formal notations to specify conversations between roles. We define a translation from a protocol narration to the sequences of operations to be performed by each role. Unlike previous…

Logic in Computer Science · Computer Science 2009-10-28 Yannick Chevalier , Michael Rusinowitch

Anonymous Single-Sign-On authentication schemes have been proposed to allow users to access a service protected by a verifier without revealing their identity which has become more important due to the introduction of strong privacy…

Cryptography and Security · Computer Science 2018-04-20 Jinguang Han , Liqun Chen , Steve Schneider , Helen Treharne , Stephan Wesemeyer

A new interactive quantum zero-knowledge protocol for identity authentication implementable in currently available quantum cryptographic devices is proposed and demonstrated. The protocol design involves a verifier and a prover knowing a…