1 / 3

Shifrimet afine matricore ( Shifrat e Hill-it).

Shifrimet afine matricore ( Shifrat e Hill-it). Keto perbejne nje kriptosistem polialfabetik , te zbuluar me 1929 nga Lester S. Hill. Vazhdojme me shembullin : Mbasi kemi transformuar mesazhin SUKSESE ne vargje numrash 19,21,11,19,05,19,05 formohet vargu i cifteve :

zeno
Download Presentation

Shifrimet afine matricore ( Shifrat e Hill-it).

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Shifrimetafinematricore (Shifrat e Hill-it). Ketoperbejnenjekriptosistempolialfabetik, tezbuluar me 1929 nga Lester S. Hill. Vazhdojme me shembullin : Mbasikemitransformuarmesazhin SUKSESE ne vargjenumrash 19,21,11,19,05,19,05 formohetvarguicifteve : eshteshtuarnumriifundit 24, pragerrna X, per teplotesuarciftin e fundit

  2. Per tashifruar, shumezojmecdovektor me tenjejtenmatricekatroreterendittedyteqe ka teanasjellte. Si tetillemarrim : me percaktorIAI = 19. Meqenese (19,26) = 1, nurnri 19 ka teanasjellte, icili, ngaalgoritmiiEukliditeshte 11, prandaj Mesazhiishifruareshtevarguicifteve

  3. cili, duke u shtrire 24 01 18 17 08 21 07 03 Iexohet XARQHUGC. Shenojmeqe ne vend te S tanikeminje here X, nje here Q, e nje here U, vetemciftet e germavekanetenjejtinshifrim, e per me teperkurnisintedy ne nje vend tek. Marresimesazhin e shifruar e kalon ne vargun e vektorevs (2.6) dheshumezonsecilinprejtyre me matricenA -1. MeqeA -1. A = E merretvargu (2.5), e me tej, duke perdorurperserikorrespondencsn (2.2), fitohetmesazhi.

More Related