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What are the essential ingredients of a symmetric cipher

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Reference no: EM132525929

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 decryption rather than encryption?

Reference no: EM132525929

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