CYG Chapter 2 Classical Cryptography

Questions about the lecture 'Cryptography' of the RWTH Aachen Chapter 2 Classical Cryptography

Questions about the lecture 'Cryptography' of the RWTH Aachen Chapter 2 Classical Cryptography


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Crée / Actualisé 21.03.2017 / 12.11.2017
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What is the definition?

[ciphers.text.characteristics.classical]

Ciphertext messages C := Cupl=0inf Yl

What is the definition?

[plain.text.characteristics.classical]

Plaintext, message m \in M

What is the definition?

[cipher.text.characteristics.classical]

Ciphertext, cryptogram c \in C

What is the definition?

[keyspace.characteristics.classical]

Keyspace K is finite set of possible keys k \in K

What is the definition?

[encryption.characteristics.classical]

Encryption rule e : M x K → C : (m,k) → m

What is the definition?

[decryption.characteristics.classical]

Decryption rule d : C x K → M : (c,k) → c

What is the definition?

[cryptosystem.characteristics.classical]

(M,K,C,e,d) with d(e(m,k),k)=m for all (m,k) \in M x K