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Question:
(a) Prove that every positive integer n can be factorized into a product of prime powers.
(b) State the Fermat-Euler theorem as needed in the RSA system.
(c) Using the Repeated Squaring Method, verify that with modulus 3127 and encipherment key 17 the number 0530 encipher to itself in the RSA system.
(d) Having received a message enciphered on the RSA system using his public key how can the owner of the decipherment key reply?
(e) Explain how RSA can be used for digital signatures.
(f) State the protocol based on quantum cryptography that can be used to exchange keys.
(a) Using the extended Euclidean algorithm, find the multiplicative inverse of 504 mod 67. (b) Decrypt the following ciphertext, which has been encrypted using Caesar cipher:
Question: (a) How can you prevent someone from accessing your computer when you leave your office for some time? (b) What is the difference between a classic login and a w
state the fundamental principles of 3gpp security
Hashing is the transformation of a string of characters into a generally shorter fixed-length key or a value that presents the original string. Hashing is used to index and retri
How does the POP functions? What are the advantages/benefits of IMAP over POP? POP stands for Post Office Protocol, version 3 (POP3) is one of the easiest message access protoc
Question : (a) Distinguish between authorization and authentication. (b) SSO (Single Sign On) implies a user logs in once and can access resources for a defined period of
Question 1: (a) Differentiate between symmetric and asymmetric encryption system. (b) Describe how a digital signature is created. (c) Explain briefly what SSL (secure so
Question : (a) What do you meant by the term "Bastion Host"? What is its use? (b) "Hostile" Java applets will do undesirable actions. Mention two problems caused by Hosti
The key concepts and frameworks covered in modules 1-4 are particularly relevant for this assignment. Assignment 2 relates to the specific course learning objectives 1, 2 and 3:
UDP DATAGRAM FORMAT: It is given in the figure below:
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