Cov txheej txheem:

Xenocrypt yog dab tsi?
Xenocrypt yog dab tsi?

Video: Xenocrypt yog dab tsi?

Video: Xenocrypt yog dab tsi?
Video: Cryptography II Meeting 5 - Xenocrypts 2024, Kaum ib hlis
Anonim

Xenocrypt (tsis muaj ntau tshaj ib qho) Kev Ua lej Cryptanalysis ntawm Hill Cipher - yog tsim cov decryption matrix muab 2x2 encryption matrix los yog suav cov decryption matrix muab 4 daim ntawv dawb-ciphertext ntawv khub.

Xav txog qhov no, dab tsi yog Patristocrat?

Aristocrat, Patristocrat Nplooj. Aristocrat thiab Patristocrat yog ACA cov ntsiab lus rau cov ntawv hloov pauv yooj yim uas tsis muaj tsab ntawv hloov pauv rau nws tus kheej. Aristocrats muaj lo lus faib, Patristocrats tsis txhob. Hauv qab no yog ib qho kev pab cuam uas automates Aristocrat thiab Patristocrat kev tsim kho.

Tsis tas li, kuv yuav txiav txim siab li cas affine cipher? E(x) = (ax + b) mod m

  1. Tus qauv muaj nuj nqis rau cov tsiaj ntawv ntawm 26 tsab ntawv. Daim ntawv ceeb toom peb pib ntawm 0, tsis yog 1.
  2. Lub affine cipher nrog a = 5, b = 8.
  3. Cov txheej txheem decryption rau tus yuam sij ntawm a = 5, b = 8.
  4. Cov tsiaj ntawv ciphertext rau Affine Cipher nrog tus yuam sij a = 5, b = 8.
  5. Lwm txoj hauv kev los muab qhov tseem ceeb rau cov tsiaj ntawv hauv cov tsiaj ntawv.

Saib qhov no, tus tsiaj ntawv k2 yog dab tsi?

Es tsis txhob encoding lub rooj hloov nrog ib lo lus tseem ceeb, tus thawj tsiaj ntawv yog encoded nrog lo lus tseem ceeb thiab hloov tsiaj ntawv yog Alphabetical Order. Qhov no yog lub npe hu ua a K2 tus tsiaj ntawv thiab yuav raug cim raws li cov lus nug. Nco ntsoov tseem ceeb heev uas qhov zaus cuam tshuam nrog tsab ntawv encoded.

Kuv yuav daws qhov cryptogram li cas?

Yuav daws Cryptogram li cas: Tricks Koj Yuav Xav Kom Koj Paub sai dua

  1. Nrhiav cov lus me me ua ntej. Cov lus nrog ib tsab ntawv tuaj yeem yog 'a' lossis 'i'.
  2. Tshawb nrhiav tib cov tsiaj ntawv hauv ib lo lus.
  3. Nrhiav digraphs.
  4. Nrhiav apostrophes.
  5. Nrhiav ob tsab ntawv.
  6. Tsis muaj lo lus ua tiav yam tsis muaj suab.
  7. Tshawb xyuas cov tsiaj ntawv sib xws.
  8. Tshawb xyuas cov lus nug.

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