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Black Box Testing White Box Testing It is a way of software testing in which the internal structure or the program or the code is hidden and nothing is known about it. It is a way of testing the software…
Software engineering is the discipline concerned with the systematic approach to the development, operation, and maintenance of software. It involves applying engineering principles and practices to software development, aiming to create reliable, efficient, and maintainable software systems. Umbrella activities in…
The Waterfall model is one of the earliest and most traditional software development life cycle (SDLC) models. It is a linear and sequential approach to software development, where each phase must be completed before the next phase begins. Key Characteristics:…
Database Security means keeping sensitive information safe and prevent the loss of data. Security of data base is controlled by Database Administrator (DBA). The following are the main control measures are used to provide security of data in databases: 1. Authentication2.…
Module 1 Services , Mechanism and Attack Network Security model Keyed and keyless transposition technique Numericals: Playfair (But practice all) Module 2 Block cipher modes DES and Triple DES RSA Diffie Hellman (Knapsack and El-Gamal) Module 3 MAC, HMAC, CMAC…
Digital Signature : As the name sounds are the new alternative to sign a document digitally. It ensures that the message is sent by the intended user without any tampering by any third party (attacker). In simple words, digital signatures are…
Answer to : User A and B want to use RSA to communicate securely. A chooses public key as (7, 119) and B chooses public key as (13, 221). Calculate their private keys. A wishes to send message m =…
Answer to : What is need of Diffie-Hellman algorithm. User A and B decide to use Diffie-Hellman algorithm to share a key. They choose p = 23 and g = 5 as the public parameters. Their secret keys are 6…
2) File Protection: In computer systems, alot of user’s information is stored, the objective of the operating system is to keep safe the data of the user from the improper access to the system. Protection can be provided in number…
X.509 is a digital certificate that is built on top of a widely trusted standard known as ITU or International Telecommunication Union X.509 standard, in which the format of PKI certificates is defined. X.509 digital certificate is a certificate-based authentication…