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Zorluk: OrtaCoding and Decoding

A cryptographer is analyzing intercepted transmissions and has successfully aligned three coded messages with their English translations. Note that the order of words in the coded messages does not necessarily correspond to the order of words in the English translations.

1. 'alpha delta echo' translates to 'secure the perimeter'
2. 'echo bravo charlie' translates to 'the main target'
3. 'alpha charlie foxtrot' translates to 'secure main exit'

Based on these translations, match each English word with its corresponding coded term.

  • securealpha
  • theecho
  • perimeterdelta
  • maincharlie

Cevap

The correct matches are: 'secure' corresponds to 'alpha', 'the' corresponds to 'echo', 'perimeter' corresponds to 'delta', and 'main' corresponds to 'charlie'.
By cross-referencing phrases that share common words, we isolate specific codes. 'secure' is shared by phrases 1 and 3 (yielding 'alpha'). 'the' is shared by phrases 1 and 2 (yielding 'echo'). 'main' is shared by phrases 2 and 3 (yielding 'charlie'). Consequently, 'perimeter' in phrase 1 must be the remaining code 'delta'.

Adım Adım Çözüm

1
Analyze the first and second phrases for common words and codes.
Common English word: 'the'. Common coded term: 'echo'.
Finding elements common to two sets is the primary deductive method for deciphering substitution matrices.
2
Analyze the first and third phrases for common words and codes.
Common English word: 'secure'. Common coded term: 'alpha'.
This establishes another direct translation pair by isolating shared terms.
3
Use the known translations to deduce the remaining words in the first phrase.
Since 'secure' is 'alpha' and 'the' is 'echo', the final word 'perimeter' must map to the remaining code 'delta'.
Process of elimination within a fully mapped phrase confirms the final mapping.
4
Analyze the second and third phrases for common words and codes.
Common English word: 'main'. Common coded term: 'charlie'.
This confirms the translation for 'main' and completes the required matching.

Anahtar Kavram

Sentence Substitution Matrices
Tahmini Süre:1m 0s
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Konular

Coding and Decoding

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