CRIPTO
Authored by Guțui-Maftei Alexandra
Information Technology (IT)
University
Used 9+ times
AI Actions
Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...
Content View
Student View
24 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce presupune tehnica steganografica LSB?
Plaseaza mesajul secret in header-ul mesajului purtator
Adauga mesajul secret in secventele de biti 0 din mesajul purtator
Foloseste cele mai putin semnificative pozitii binare ale mesajului purtator pentru a stoca mesajul secret, dar fara a modifica natura mesajului purtator
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce metoda de criptare poate obtine “criptarea perfecta”?
One-time pad
Cifruri de transpozitie
Cifrul Cezar
Cifruri de transpozitie
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cifru de substitutie in care un simbol din textul in clar poate fi inlocuit cu diferite simboluri cifrate de-a lungul procesului de criptare
CIFRU POLIALFABETIC
CIFRU MONOALFABETIC
cifru de bloc
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care este ordinea corecta a pasilor de urmat in cazul utilizarii criptarii simetrice pentru trimiterea unui mesaj?
1. Alice cripteaza mesajul ei folosind cheia secreta, mesaj pe care il trimite lui Bob
2. Alice si Bob cad de acord asupra unui sistem criptografic simetric (cu cheie secreta) si asupra unei chei (cunoscuta dinainte sau primita printr-un canal de comunicatie)
3. Bob decripteaza mesajul lui Alice, folosind cheia secreta
2-1-3
1-3-2
1-2-3
2-3-1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care este operatia logica folosita de algoritmii de criptare simetrica?
SAU
SI
SAU EXCLUSIV
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce fel de transformari utilizeaza un criptosistem simetric bazat pe o retea Feistel?
P-Box, S-Box si XOR
SubBytes si MixColumns
RC6 si MARS
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ce problema a modului de operare ECB (electronic codebook) rezolva modul de operare CBC (cipher block chaining)?
Ultimul bloc necesita padding
Acelasi bloc de text se va cripta intotdeauna in acelasi bloc de criptotext
Nu se poate folosi opertia XOR
Access all questions and much more by creating a free account
Create resources
Host any resource
Get auto-graded reports
Continue with Google
Continue with Email
Continue with Classlink
Continue with Clever
or continue with
Microsoft
%20(1).png)
Apple
Others
Already have an account?
Similar Resources on Wayground
22 questions
2. yazılı hazırlık soruları
Quiz
•
5th Grade - University
20 questions
Les roles stratégique et opérationnel du SI
Quiz
•
University
20 questions
TR01-HT01-OP02
Quiz
•
University
20 questions
Revissão - Linguagem C (str, fun, stru, vt+mt,)
Quiz
•
University
20 questions
Historia de la Robótica
Quiz
•
8th Grade - University
20 questions
Marcas de celular ISAURA APAZA
Quiz
•
5th Grade - University
21 questions
ThinkCraft Club
Quiz
•
University
21 questions
Wordpress QCM final
Quiz
•
University
Popular Resources on Wayground
15 questions
Fractions on a Number Line
Quiz
•
3rd Grade
20 questions
Equivalent Fractions
Quiz
•
3rd Grade
25 questions
Multiplication Facts
Quiz
•
5th Grade
22 questions
fractions
Quiz
•
3rd Grade
20 questions
Main Idea and Details
Quiz
•
5th Grade
20 questions
Context Clues
Quiz
•
6th Grade
15 questions
Equivalent Fractions
Quiz
•
4th Grade
20 questions
Figurative Language Review
Quiz
•
6th Grade
Discover more resources for Information Technology (IT)
12 questions
IREAD Week 4 - Review
Quiz
•
3rd Grade - University
23 questions
Subject Verb Agreement
Quiz
•
9th Grade - University
7 questions
Force and Motion
Interactive video
•
4th Grade - University
7 questions
Renewable and Nonrenewable Resources
Interactive video
•
4th Grade - University
5 questions
Poetry Interpretation
Interactive video
•
4th Grade - University
19 questions
Black History Month Trivia
Quiz
•
6th Grade - Professio...
15 questions
Review1
Quiz
•
University
15 questions
Pre1
Quiz
•
University