dorsal/arxiv
View SchemaA " quantum public key " based cryptographic scheme for continuous variables
| Authors | Patrick Navez, Alessandra Gatti, Luigi A. Lugiato |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0101113 |
| URL | https://arxiv.org/abs/quant-ph/0101113 |
Abstract
By analogy to classical cryptography, we develop a "quantum public key" based cryptographic scheme in which the two public and private keys consist in each of two entangled beams of squeezed light. An analog message is encrypted by modulating the phase of the beam sent in public. The knowledge of the degree of non classical correlation between the beam quadratures measured in private and in public allows only the receiver to decrypt the message. Finally, in a view towards absolute security, we formally prove that any external intervention of an eavesdropper makes him vulnerable to any subsequent detection.
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"date_created": "2026-03-02T18:01:42.633000Z",
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"abstract": "By analogy to classical cryptography, we develop a \"quantum public key\" based\ncryptographic scheme in which the two public and private keys consist in each\nof two entangled beams of squeezed light. An analog message is encrypted by\nmodulating the phase of the beam sent in public. The knowledge of the degree of\nnon classical correlation between the beam quadratures measured in private and\nin public allows only the receiver to decrypt the message. Finally, in a view\ntowards absolute security, we formally prove that any external intervention of\nan eavesdropper makes him vulnerable to any subsequent detection.",
"arxiv_id": "quant-ph/0101113",
"authors": [
"Patrick Navez",
"Alessandra Gatti",
"Luigi A. Lugiato"
],
"categories": [
"quant-ph"
],
"title": "A \" quantum public key \" based cryptographic scheme for continuous variables",
"url": "https://arxiv.org/abs/quant-ph/0101113"
},
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