Crittografia: la scitala
Authored by Marco Buccione
Computers
9th - 12th Grade
Used 2+ times
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7 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
La "scitala" era lo scettro degli imperatori romani?
Sì
No
2.
DRAG AND DROP QUESTION
1 min • 1 pt
La scitala era un (a) intorno a cui si avvolgeva una (b) e si scriveva il (c) nel senso della (d)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Per decifrare un messaggio occultato con la scitala è necessario un bastone...
...della stessa lunghezza
...dello stesso materiale
...dello stesso diametro
...della stessa persona
4.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
La scitala è il primo esempio di cifrario
A sostituzione
A trasposizione
Monoalfabetico
A rotazione
5.
DRAG AND DROP QUESTION
1 min • 2 pts
Un cifrario a (a) trasforma il messaggio (b) nel messaggio (c) mediante (d) dei caratteri, senza (e)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Un cifrario a sostituzione può essere schematizzato usando
Una scacchiera
Una ruota
Un foglio
Una tabella
7.
FILL IN THE BLANK QUESTION
3 mins • 2 pts
Il messaggio CIAO A TUTTI, trasformato attraverso un cifrario a trasposizione con chiave 4 (quattro colonne), diventa:
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