A complete classification of quantum public-key encryption protocols

Quantum public-key encryption protocols with information-theoretic security

10.1117/12.922444 ◽

2012 ◽

Cited By ~ 5

Author(s):

Li Yang ◽

Biyao Yang ◽

Jiangyou Pan

Keyword(s):

Public Key ◽

Public Key Encryption ◽

Information Theoretic ◽

Information Theoretic Security ◽

Quantum Public Key

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Quantum Random Oracle Model for Quantum Public-Key Encryption

IEEE Access ◽

10.1109/access.2019.2940406 ◽

2019 ◽

Vol 7 ◽

pp. 130024-130031 ◽

Cited By ~ 1

Author(s):

Tao Shang ◽

Ranyiliu Chen ◽

Qi Lei

Keyword(s):

Random Oracle Model ◽

Random Oracle ◽

Public Key ◽

Public Key Encryption ◽

Quantum Public Key

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Quantum Election Protocol Based on Quantum Public Key Cryptosystem

Security and Communication Networks ◽

10.1155/2021/5551249 ◽

2021 ◽

Vol 2021 ◽

pp. 1-15

Author(s):

Wenhua Gao ◽

Li Yang

Keyword(s):

Digital Signature ◽

Large Scale ◽

Third Party ◽

Public Key ◽

General Construction ◽

Public Key Cryptosystem ◽

Public Key Encryption ◽

Quantum Digital Signature ◽

Quantum Public Key ◽

Quantum Public Key Cryptosystem

There is no quantum election protocol that can fulfil the eight requirements of an electronic election protocol, i.e., completeness, robustness, privacy, legality, unreusability, fairness, verifiability, and receipt-freeness. To address this issue, we employ the general construction of quantum digital signature and quantum public key encryption, in conjunction with classic public key encryption, to develop and instantiate a general construction of quantum election protocol. The proposed protocol exhibits the following advantages: (i) no pre-shared key between any two participants is required, and no trusted third party or anonymous channels are required. The protocol is suitable for large-scale elections with numerous candidates and voters and accommodates the situation in which multiple voters vote simultaneously. (ii) It is the first protocol that dismantles the contradiction between verifiability and receipt-freeness in a quantum election protocol. It satisfies all eight requirements stated earlier under the physical assumptions that there exists a one-way untappable channel from the administrator to the voter and that there is no collusion between any of the three parties in the protocol. Compared with current election protocols with verifiability and receipt-freeness, this protocol relies upon fewer physical assumptions. (iii) This construction is flexible and can be instantiated into an election scheme having post-quantum security by applying cryptographic algorithms conveying post-quantum security. Moreover, utilizing quantum digital signature and public key encryption yields a good result: the transmitted ballots are in quantum states, so owing to the no-cloning theorem, ballot privacy is less likely to be compromised, even if private keys of the signature and public key encryption are leaked after the election. However, in existing election protocols employing classic digital signatures and public key encryption, ballot privacy can be easily violated if attackers obtain private keys. Thus, our construction enhances privacy.

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Authentication for Computer Communication > An Overview of Authentication for Computer Communications

10.34048/2019.1.f2 ◽

2019 ◽

Author(s):

Madhusudhana H. S.

Keyword(s):

Cloud Computing ◽

Public Key ◽

Public Key Encryption ◽

Computer Communication ◽

Single Sign On ◽

Computer Communications ◽

Secure Data ◽

Symmetric Key ◽

Authentication System

Authentication is the first and foremost security principle that involves validation of identity of an user or a machine. The successful authentication is required for authorization and secure data exchanges. A common classification of authentication system based on factors – something you know, something you own, something you did and something you are – is explained. Well-known and used password schemes employed in practice is described along with standards. A description Kerberos of authentication system based on symmetric key encryption and SSL based authentication which is based on public key encryption is given. Related Single-Sign-On technologies are explained. A brief overview of authentication for cloud computing, IoT and UIDAI is presented.

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