Grila SI 5
Cryptography Quiz: Test Your Knowledge!
Are you ready to challenge your cryptography skills? Dive into our quiz designed for enthusiasts and professionals alike, covering essential topics like RSA, DES, and more.
Get ready to answer questions about:
- Encryption techniques
- Security algorithms
- Hash fun
ctions
Pt autentificarea informatiei intr-un scenariu cu mai multi participanti,dezavantajele utilizarii functiilor simetrice vs semnaturi digitale este
Numarul ridicat de chei partajate
Atacurile de tip replay
Viteza de calcul redusa
Niciuna
Daca la semnare se foloseste un padding simplu PKCS1 este adevarat ca
O singura semnatura poate trece testul de verificare
Un mesaj are o semnatura unica
Un mesaj poate avea semnaturi multiple
Niciuna
Despre semnarea RSA in varianta textbook se poate spune ca:
Este vunerabila la atacuri ROR
Este inversa criptarii RSA
Este falsificabila existential daca nu se foloseste o functie hash si un padding
Niciuna
Despre programul de generare a cheii de runda la DES este adevarat
foloseste transformarea AddRoundKey
Genereaza 16 chei de runda
Nu exista un astfel de program.DES cripteaza mesaje
Niciuna
Cu privire la PRNG-ul bazat generatorul de congruente lineare(ax+c mod n) este adevarat ca
Necesita un seed aleator
Este nesigur in practica
Daca seed-ul este random, e sigur
Niciuna
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