Abstract
The relation between Ising spin systems and public-key cryptography is investigated using methods of statistical physics. The insight gained from the analysis is used for devising a matrix-based cryptosystern whereby the ciphertext comprises products of the original message bits; these are selected by employing two predetermined randomly constructed sparse matrices. The ciphertext is decrypted using methods of belief propagation. The analyzed properties of the suggested cryptosystem show robustness against various attacks and competitive performance to modern cyptographical methods.
| Original language | English |
|---|---|
| Pages (from-to) | 2030-2033 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 84 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 28 Feb 2000 |
Bibliographical note
Funding: Support by JSPS-RFTF (Y. K.), The Royal Society, and EPSRC-GR/L52093 (D. S.) is acknowledged.Fingerprint
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