Archivio Istituzionale della RicercaBased on the geometry of finite projective planes, a secret-key encryption scheme, which offers an exactly computable degree of secrecy, is described. This target is achieved at the cost of an encryption rate equal to 1/2, as in one-time-pad encryption, but the devised scheme avoids the burden of exchanging and destroying long keys. It is also shown that knowledge of pieces of plain text does not significantly reduce the degree of secrecy; further, the cost of possible plain-text attacks is under the designer’s control, and can be made as high as desired.
On the Security of Stream Ciphers with Encryption Rate 1/2 / Elia, Michele - In: Applied Mathematics and Computational Intelligence / Gil-Lafuente A., Merigó J., Dass B., Verma R.. - STAMPA. - Berlin : Springer Cham, 2018. - ISBN 978 3 319 75791 9. - pp. 400-406
On the Security of Stream Ciphers with Encryption Rate 1/2
Michele Elia
2018
Abstract
Based on the geometry of finite projective planes, a secret-key encryption scheme, which offers an exactly computable degree of secrecy, is described. This target is achieved at the cost of an encryption rate equal to 1/2, as in one-time-pad encryption, but the devised scheme avoids the burden of exchanging and destroying long keys. It is also shown that knowledge of pieces of plain text does not significantly reduce the degree of secrecy; further, the cost of possible plain-text attacks is under the designer’s control, and can be made as high as desired.
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https://hdl.handle.net/11583/2706658
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