English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Open

Presents the pdf analysis as premium feature

PDF Analysis

Insights

Presents the summarisation as premium feature

Summarisation

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

We show that the insecurity claim of the AlphaEta cryptosystem made by C. Ahnand K. Birnbaum in Phys. Lett. A 370 (2007) 131-135 under heterodyne attack isbased on invalid extrapolations of Shannon's random cipher analysis and on aninvalid statistical independence assumption. We show, both for standard ciphersand AlphaEta, that expressions of the kind given by Ahn and Birnbaum can atbest be interpreted as security lower bounds.

Comment on "Exposed-Key Weakness of Alpha-Eta" [Phys. Lett. A 370 (2007) 131]