questions on cryptography

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1) Compare and contrast the characteristics of classic and modern cryptography.

(Maximum: Half a Page, double-spaced)

(2) Describe the evolution of cryptography by listing the main four stages.
(Maximum: Half a Page, double-spaced)

3)Differentiate block ciphers from stream ciphers and contrast symmetric from asymmetric cryptography. Illustrate with examples. (Maximum: Half a Page, double spaced)

4)

(a) Compare monoalphabetic and polyalphabetic ciphers.

(b) Using the Caesar Cipher method, crack this coded message – decrypt the ciphertext – WXWRULDO.

Illustrate your work.

(Maximum: Half a Page double space)

 
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