منابع مشابه
Entropy Security in Quantum Cryptography
Quantum mechanics is the basic principle which is applied in the cryptographic scenario of quantum cryptography. Present paper provides a conceptual framework on the high level security protocol in Quantum cryptography. This is used as a base for data security through quantum computing in modern cryptosystem. In this paper first of all a detailed description of BB84 protocol with noise and with...
متن کاملEntropic security in quantum cryptography
We present two new definitions of security for quantum ciphers which are inspired by the definition of entropic security and entropic indistinguishability defined by Dodis and Smith. We prove the equivalence of these two new definitions. We also propose a generalization of a cipher described by Dodis and Smith and show that it can actually encrypt n qubits using less than n bits of key under re...
متن کاملEntropy Measures and Unconditional Security in Cryptography
One of the most important properties of a cryptographic system is a proof of its security. In the present work, information-theoretic methods are used for proving the security of unconditionally secure cryptosystems. The security of such systems does not depend on unproven intractability assumptions. A survey of entropy measures and their applications in cryptography is presented. A new informa...
متن کاملEntropy measures and unconditional security in cryptography
One of the most important properties of a cryptographic system is a proof of its security. In the present work, information-theoretic methods are used for proving the security of unconditionally secure cryptosystems. The security of such systems does not depend on unproven intractability assumptions. A survey of entropy measures and their applications in cryptography is presented. A new informa...
متن کاملNetwork Security Using Quantum Cryptography
Network security and cryptography is a subject about how to protect information in digital form and to provide security services. The purpose of a digital signature is to provide a means for an entity to bind its identity to a piece of information. The common attacks on digital signature were reviewed. The first method was the RSA signature scheme, which remains today one of the most practical ...
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ژورنال
عنوان ژورنال: International Journal of Computer Applications
سال: 2013
ISSN: 0975-8887
DOI: 10.5120/14008-2057