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What is the difference between a block and a stream cipher

Assignment Help Basic Computer Science
Reference no: EM132897749

Question 1: What are the essential ingredients of a symmetric cipher?

Question 2: What are the two basic functions used in encryption algorithms?

Question 3: How many keys are required for two people to communicate via a symmetric cipher?

Question 4: What is the difference between a block cipher and a stream cipher?

Question 5: What are the two general approaches to attacking a cipher?

Question 6: Why do some block cipher modes of operation only use encryption while others use both encryption and decryption?

Question 7: What is triple encryption?

Question 8: Why is the middle portion of 3DES a decryption rather than an encryption?

Reference no: EM132897749

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