Practical quantum cryptography for secure free-space communications
نویسندگان
چکیده
منابع مشابه
Practical quantum cryptography for secure free-space communications
Quantum Cryptography is an emerging technology in which two parties may simultaneously generate shared, secret cryptographic key material using the transmission of quantum states of light. The security of these transmissions is based on the inviolability of the laws of quantum mechanics and information – theoretically secure postprocessing methods. An adversary can neither successfully tap the ...
متن کاملPractical quantum cryptography for secure free-space communications
Quantum cryptography is an emerging technology in which two parties may simultaneously generate shared, secret cryptographic key material using the transmission of quantum states of light. The security of these transmissions is based on the inviolability of the laws of quantum mechanics and information-theoretically secure post-processing methods. An adversary can neither successfully tap the q...
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Cryptography the art of secure communications, has been developed at least over 2500 years. Still at present, no perfectly secure as well as practically suitable classical or quantum cryptosystems exist. Statistically encoding the individual bit, here we present a practical key distribution technique which is absolutely secure both for classical and quantum keys. To achieve perfect security, no...
متن کاملLong Distance Free Space Quantum Cryptography
Quantum cryptography bases the security of key exchange on the laws of quantum physics and will become the first application of quantum information methods. Here we present the design of novel hardware components which enabled the demonstration of secure key exchange over a 23.4 km free-space link.
متن کاملTowards practical quantum cryptography
Quantum cryptography bases the security of quantum key exchange on the laws of quantum physics and is likely to become the first application employing quantum effects for communication. Here we present performance tests of a new design based on polarization encoding of attenuated, coherent light pulses. Our measurements show that this compact setup can achieve an effective key-bit rate in the k...
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ژورنال
عنوان ژورنال: International Journal of Computer and Communication Technology
سال: 2010
ISSN: 2231-0371,0975-7449
DOI: 10.47893/ijcct.2010.1046