CYG Chapter 3 Cryptanalysis of Classical Systems
Questions about the lecture 'Cryptography' of the RWTH Aachen Chapter 3 Cryptanalysis of Classical Systems
Questions about the lecture 'Cryptography' of the RWTH Aachen Chapter 3 Cryptanalysis of Classical Systems
Fichier Détails
| Cartes-fiches | 31 |
|---|---|
| Langue | English |
| Catégorie | Informatique |
| Niveau | Université |
| Crée / Actualisé | 21.03.2017 / 17.08.2017 |
| Attribution de licence | Non précisé |
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What is ‘Kerckhoffs’ principle’?
[cryptanalysis]
“The security of a cryptosystem shall not be based on the premise that the system itself is unknown to an opponent.”
What is the assumption?
[levels.cryptanalysis]
Oskar knows about the cryptosystem except of the key
What are the attacks?
[levels.cryptanalysis, 4]
1. CO
2. KP
3. CP
4. CC
What is the definition?
[CO.levels.cryptanalysis]
Only a string of ciphertext
What is the definition?
[KP.levels.cryptanalysis]
A string of ciphertext and the corresponding plaintext
What is the definition?
[CP.levels.cryptanalysis]
Access to the encryption function for any plaintext
What is the definition?
[CC.levels.cryptanalysis]
Access to the decryption function for any ciphertext
Which attacks are minimal requirements for a cryptosystem?
[levels.cryptanalysis, 2]
1. CO and 2. KP
