How much information is represented by the state

Assignment Help Computer Network Security

Reference no: EM131827609

Problem

RC4 has a secret internal state which is a permutation of all the possible values of the vector S and the two indices i and j.

a. Using a straightforward scheme to store the internal state, how many bits are used?

b. Suppose we think of it from the point of view of how much information is represented by the state. In that case, we need to determine how may different states there are, then take the log to the base 2 to find out how many bits of information this represents. Using this approach, how many bits would be needed to represent the state?

Reference no: EM131827609

Questions Cloud

What effect is produced on the recovered plaintext blocks : Suppose an error occurs in a block of ciphertext on transmission using CBC. What effect is produced on the recovered plaintext blocks?

What can we say about the price elasticity of demand : What can we say about the price elasticity of demand for nicotine products (such as cigarettes, pipes, tobacco) in the group of nicotine addicted users.

Possible symbols in the great gatsby : What are some of the possible symbols in The Great Gatsby?

What are the symbols in the catcher : Question: What are the symbols in The Catcher in the Rye by JD Salinger?

How much information is represented by the state : How many bits are used? Suppose we think of it from the point of view of how much information is represented by the state.

Paraphrasing and direct quotations : Kinesiologist Christy Lotz, Michael Agnew, Alison Godwin and Joan Stevenson (2009) explains that "Prior to the release of back belts for use in industry

Analyze the effect of full and variable-cost transfer method : Required: Analyze the effect of full-cost and variable-cost transfer pricing methods on Phipps' cash flows

Comment on paraphrasing and direct quotations : This is my interpretation of the sandwich method which the required reading stated as a very simplistic and effective way to properly present outside.

Why not allow zero bytes of padding : Why not allow zero bytes of padding? That is, if the original plaintext is an integer multiple of the block size, why not refrain from padding?

User Account

All Pages