Before we understand about the web APIs, let’s see what is an Application Programming Interface (API). API is an intermediary software with a set of defined protocols, subroutine which allows two programs to communicate each other. In another way an API contains a set of functions which other applications can…

With Azure cloud platform This article is written as a requirement for course SENG 41283 : Distributed and Cloud Computing. And the web application used in here is a sample web application built using html, css, js and php. Further here I have used Microsoft azure dev tool which has…

A secure digest function or secure hash function is a mathematical function that converts an input into a fixed length output which is called a hash. Hashes are also called as message digests and digital fingerprints. Graphical representation

We use cryptography to protect information. Crypt means hidden and -graphy stands for writing. We use set of mathematical concepts and some rule-based calculations to secure information. This information can be at rest or at transit. Authentications, Integrity and confidentiality are components of Cryptography. This is not a new concept…

We use cryptography to protect information. Crypt means hidden and -graphy stands for writing. We use set of mathematical concepts and some rule-based calculations to secure information. This information can be at rest or at transit. Authentications, Integrity and confidentiality are components of Cryptography. This is not a new concept…

What is RabbitMQ? RabbitMQ is a message queuing software or in other words a queue mennager which is an open source product. This is the most widely used message broker. This can be easily deployed on premises and also in the cloud. Let’s find out why we need a software like RabbitMQ. We…

In my last blog I wrote about RPC. This is about Remote Method Invocation, shortly called RMI which an API we use to create distributed systems in java invoking methods of an object (remote object) which is running on another Java Virtual Machine (JVM). This could be on same machine…

First let’s understand the concept of RPC. Simply we use Remote Procedure Calls to communicate with other components in a server. A component can request a service from another component in the network by a remote procedure Call. RPC use in distributed and client server model based applications. Components can…

What is External Data Representation and why we need it? External Data Representation is representing data structures and primitive data types in an agreed standard. The information in a running program are stored in data structures. But when transferring they are converted to stream of bytes. …