dorsal/arxiv
View SchemaKCQ: A New Approach to Quantum Cryptography I. General Principles and Key Generation
| Authors | Horace P. Yuen |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0311061 |
| URL | https://arxiv.org/abs/quant-ph/0311061 |
Abstract
A new approach to quantum cryptography to be called KCQ, keyed communication in quantum noise, is developed on the basis of quantum detection and communication theory for classical information transmission. By the use of a shared secret key that determines the quantum states generated for different data bit sequences, the users may employ the corresponding optimum quantum measurement to decode the data. This gives them a better error performance than an attacker who does not know the key when she makes her quantum measurement, and an overall generation of a fresh key may be obtained from the resulting advantage. This principle is illustrated in the operation of a concrete qubit system A general information-theoretic description of the overall approach will be presented, and contrasted with the detection/coding description necessary for specific protocols.
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"abstract": "A new approach to quantum cryptography to be called KCQ, keyed communication\nin quantum noise, is developed on the basis of quantum detection and\ncommunication theory for classical information transmission. By the use of a\nshared secret key that determines the quantum states generated for different\ndata bit sequences, the users may employ the corresponding optimum quantum\nmeasurement to decode the data. This gives them a better error performance than\nan attacker who does not know the key when she makes her quantum measurement,\nand an overall generation of a fresh key may be obtained from the resulting\nadvantage. This principle is illustrated in the operation of a concrete qubit\nsystem A general information-theoretic description of the overall approach will\nbe presented, and contrasted with the detection/coding description necessary\nfor specific protocols.",
"arxiv_id": "quant-ph/0311061",
"authors": [
"Horace P. Yuen"
],
"categories": [
"quant-ph"
],
"title": "KCQ: A New Approach to Quantum Cryptography I. General Principles and Key Generation",
"url": "https://arxiv.org/abs/quant-ph/0311061"
},
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