encrypt and decryption using rsa with the prime numbers, Computer Network Security

Assignment Help:

Problem (1)

- Alice, Bob and Charlie have a secret key a=3, b=4, c=5, respectively.

- They want to find a common secret key using Diffie-Hellan key exchange protocol (with g=2, p=5).

- Assume that there is no man-in-the-middle attacker.

-  Show how they can share a common secret key with the above mentioned numbers.  

Problem (2)

- Encrypt and decrypt first 3 characters of your last name (family name) using RSA with the prime numbers (p=7, q=11). (If your last name is shorter than 3 characters, use first 3 characters of your first name instead.)

- Use ASCII code at: ascii.cl

  • e.g.) Michael Nordan
  • A=65, B=66, ...
  • N -> 78, o->111, r->72

- You can choose an encryption key e among {11, 13, 19, 23, 29} and find d.

- You have to show the all the steps (in particular, EEA) as detail as possible.

- Encrypt the message using your encryption key e like this way (n=pq):

If you number is greater than 76, decompose them into a smaller number as follows.

  • e.g., 7 8 11 17 2
  • (7^e) mod n
  • (8^e) mod n
  • (11^e) mod n
  • (17^e) mod n
  • (2^e) mod n

- Decryption the ciphertext using private key d.


Related Discussions:- encrypt and decryption using rsa with the prime numbers

Risk identification-information security, Risk Identification Risk manag...

Risk Identification Risk management comprises of identifying, classifying and prioritizing organization’s information assets, threats and vulnerabilities also. Risk Identificati

Risk control strategies-, Risk Control Strategies Once the ranked vulner...

Risk Control Strategies Once the ranked vulnerability risk worksheet has created, they should choose one of following 4 strategies to control each risk: •Apply safeguards which

Benchmarking-information security, Benchmarking An alternative approach to...

Benchmarking An alternative approach to risk management is Benchmarking. It is process of seeking out and studying practices in other organizations which one’s own organization de

Types of idss and detection methods, Types of IDSs and Detection Methods ...

Types of IDSs and Detection Methods IDSs operate as network based, host based, or application based systems and focused on protecting network information assets. All the IDSs us

Marketing, what are the participant of marketing channal?

what are the participant of marketing channal?

Cryptography, hi have a look and tell me if u can do it. if u can do Q1then...

hi have a look and tell me if u can do it. if u can do Q1then i will allow u to do Q2

Deploying host-based idss, Deploying Host-Based IDSs -Proper implementat...

Deploying Host-Based IDSs -Proper implementation of HIDSs can be painstaking and time-consuming task .The process of deployment begins with implementing most critical systems fi

Explain how inter-vlan communication, QUESTION a) A switch basically ...

QUESTION a) A switch basically operates by forwarding frames from one part of the network to another, based on MAC address. Describe the three types of switching namely store

Differentiate between private key and public key encryption, Problem (...

Problem (a) Differentiate between private key and public key encryption. (b) What issue with private key encryption is resolved with public key encryption? (c) Describe

Draw the waveform for an asynchronous transmission, Question: (a) Draw...

Question: (a) Draw the waveform for an asynchronous transmission with the following specifications: Character "H", one even parity bit, one start bit, one stop bit, and a b

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd