Register
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. How many bits are needed to describe the state of RC4? b. RC4 is a deterministic
59.9k views
3 votes
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. How many bits are needed to describe the state of RC4?

b. RC4 is a deterministic number generator: given its internal state, the output byte is uniquely defined. This means that the output of RC4 eventually cycles. Find an upper bound on the number of bytes that are output before RC4 will cycle.

User Alberto Moriconi
by
6.2k points

1 Answer

3 votes

Answer:

a. Using a straight forward scheme, the RC4 algorithm stores 2064 bits in the interval state.

b. 1700 bits

Step-by-step explanation:

See RC4 Algorithm attached with details

RC4 has a secret internal state which is a permutation of all the possible values-example-1
RC4 has a secret internal state which is a permutation of all the possible values-example-2
User Taksofan
by
5.9k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

6.5m questions

8.6m answers

Other Questions

A piston-cylinder device fitted with stops in the cylinder walls contains 2.1 kg of water initially at 150 kPa and 30 °C. Heat is transferred to the system until the final temperature reaches 250 °C. The
4. Which of the following is the first thing you should do when attempting to park? A. Securing the parking spot by standing in it B. Turning on your hazard lights C. Confirming the space can fit your
A water towers lowest point is 405 ft and the main line is 6 feet below the ground. The ground elevation is at 276 ft. The main line travels 2.9 miles. The pipe will travel through the following flanged
An activated sludge plant is being designed to handle a feed rate of 0.438 m3 /sec. The influent BOD concentration is 150 mg/L and the cell concentration (MLVSS) is 2,200 mg/L. If you wish to operate the
The bulk modulus of a fluid if it undergoes a 1% change in volume when subjected to a pressure change of 10,000 psi is (a) 0.01 psi (b) 0.001 psi (c) 0.00001 psi (d) 0.000001 psi (e) none of these
Link Copied!