Related papers: Security in Quantum Cryptography

Security in Quantum Cryptography

URL: http://arxiv.org/abs/2102.00021v2
Date: Mon, 30 Aug 2021 15:27:36 GMT
Title: Security in Quantum Cryptography
Authors: Christopher Portmann and Renato Renner
Abstract summary: Quantum cryptography exploits principles of quantum physics for the secure processing of information. We review this physical notion of security, focusing on quantum key distribution and secure communication.
Score: 5.914028209673859
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: Quantum cryptography exploits principles of quantum physics for the secure processing of information. A prominent example is secure communication, i.e., the task of transmitting confidential messages from one location to another. The cryptographic requirement here is that the transmitted messages remain inaccessible to anyone other than the designated recipients, even if the communication channel is untrusted. In classical cryptography, this can usually only be guaranteed under computational hardness assumptions, e.g., that factoring large integers is infeasible. In contrast, the security of quantum cryptography relies entirely on the laws of quantum mechanics. Here we review this physical notion of security, focusing on quantum key distribution and secure communication.

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