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We introduce the notion of public key encryption with secure key leasing (PKE-SKL). Our notion supports the leasing of decryption keys so that a leased key achieves the decryption functionality but comes with the guarantee that if the…

Quantum Physics · Physics 2023-04-07 Shweta Agrawal , Fuyuki Kitagawa , Ryo Nishimaki , Shota Yamada , Takashi Yamakawa

As 5G networks expand into critical infrastructure, secure and efficient user authentication is more important than ever. The 5G-AKA protocol, standardized by 3GPP in TS 33.501, is central to authentication in current 5G deployments. It…

Cryptography and Security · Computer Science 2025-07-29 Nazatul H. Sultan , Xinlong Guan , Josef Pieprzyk , Wei Ni , Sharif Abuadbba , Hajime Suzuki

: In this paper we suggest improved IKE key exchange protocol combined with the Computer Security USB Key device to solve the problems in using IKE and IKE v2 protocol.

Cryptography and Security · Computer Science 2016-05-02 Pak Myong-Suk , Jo Hyon-Chol , Jang Chung-Hyok

Quantum Key Distribution (QKD) protocols rely on authenticated classical communication. Typical QKD security proofs are carried out in an idealized setting where authentication is assumed to behave honestly: it never aborts, and all…

Quantum Physics · Physics 2026-01-27 Devashish Tupkary , Shlok Nahar , Ernest Y. -Z. Tan

In this paper, we proposed an identification and data encrypt key manage protocol that can be used in some security system based on such secure devices as secure USB memories or RFIDs, which are widely used for identifying persons or other…

Cryptography and Security · Computer Science 2013-07-08 Chol-Un Kim , Dok-Jun An , Song Han

We propose the idea of a Quantum Cheque Scheme, a cryptographic protocol in which any legitimate client of a trusted bank can issue a cheque, that cannot be counterfeited or altered in anyway, and can be verified by a bank or any of its…

Quantum Physics · Physics 2022-10-20 Subhayan Roy Moulick , Prasanta K. Panigrahi

Continuous authentication has been proposed as a complementary security mechanism to password-based authentication for computer devices that are handled directly by humans, such as smart phones. Continuous authentication has some privacy…

Cryptography and Security · Computer Science 2022-09-15 Sigurd Eskeland , Ahmed Fraz Baig

Data privacy and authentication are two main security requirements for remote access and cloud services. While QKD has been explored to address data privacy concerns, oftentimes its use is separate from the client authentication protocol…

5G enables digital innovation by integrating diverse services, making security especially primary authentication crucial. Two standardized protocols, 5G AKA and EAP AKA', handle authentication for 3GPP and non 3GPP devices. However, 5G AKA…

Cryptography and Security · Computer Science 2025-02-06 Yongho Ko , I Wayan Adi Juliawan Pawana , Ilsun You

Recent research in quantum cryptography has led to the development of schemes that encrypt and authenticate quantum messages with computational security. The security definitions used so far in the literature are asymptotic, game-based, and…

Quantum Physics · Physics 2020-02-24 Fabio Banfi , Ueli Maurer , Christopher Portmann , Jiamin Zhu

This paper investigates the secret key authentication capacity region. Specifically, the focus is on a model where a source must transmit information over an adversary controlled channel where the adversary, prior to the source's…

Information Theory · Computer Science 2020-01-07 Jake Perazzone , Eric Graves , Paul Yu , Rick Blum

In this paper, we use the ten security requirements proposed by Liao et al. for a smart card based authentication protocol to examine five recent work in this area. After analyses, we found that the protocols of Juang et al.'s , Hsiang et…

Cryptography and Security · Computer Science 2010-07-02 Yalin Chen , Jue-Sam Chou* , Chun-Hui Huang

Quantum Conference Key Agreement (QCKA) protocols are designed to allow multiple parties to agree on a shared secret key, secure against computationally unbounded adversaries. In this paper, we consider a high-dimensional QCKA protocol and…

Quantum Physics · Physics 2022-02-02 Omar Amer , Walter O. Krawec

Ephemeral Diffie-Hellman Over COSE (EDHOC) aims at being a very compact and lightweight authenticated Diffie-Hellman key exchange with ephemeral keys. It is expected to provide mutual authentication, forward secrecy, and identity…

Cryptography and Security · Computer Science 2022-09-12 Baptiste Cottier , David Pointcheval

Two orthogonal-state-based protocols of quantum key agreement (QKA) are proposed. The first protocol of QKA proposed here is designed for two-party QKA, whereas the second protocol is designed for multi-party QKA. Security of these…

Quantum Physics · Physics 2014-07-09 Chitra Shukla , Nasir Alam , Anirban Pathak

The McEliece public-key encryption scheme has become an interesting alternative to cryptosystems based on number-theoretical problems. Differently from RSA and ElGa- mal, McEliece PKC is not known to be broken by a quantum computer.…

Cryptography and Security · Computer Science 2012-06-04 Nico Döttling , Rafael Dowsley , Jörn Müller-Quade , Anderson C. A. Nascimento

Credential theft and remote attacks are the most serious threats to user authentication mechanisms. The crux of these problems is that we cannot control such behaviors. However, if a password does not contain user secrets, stealing it is…

Cryptography and Security · Computer Science 2024-06-03 Suyun Borjigin

The problem of data security in IEEE 802.15.4 systems on Pololu Wixel devices is solved, examples of hardware and software implementation of encryption and decryption of different devices on the same platform are given. The proposed…

Cryptography and Security · Computer Science 2019-12-30 Davyd Kurbanmuradov , Volodymyr Sokolov , Volodymyr Astapenya

Attribute-based encryption is a form of encryption which offers the capacity to encrypt data such that it is only accessible to individuals holding a satisfactory configuration of attributes. As cloud and distributed computing become more…

Cryptography and Security · Computer Science 2017-05-18 Aubrey Alston

Advancements in quantum computing pose a significant threat to most of the cryptography currently deployed. Fortunately, cryptographic building blocks to mitigate the threat are already available; mostly based on post-quantum and quantum…

Quantum Physics · Physics 2025-05-22 Jaime S. Buruaga , Augustine Bugler , Juan P. Brito , Vicente Martin , Christoph Striecks