Cryptography refers to the science and art of transforming messages to make them secure and immune to attacks. It is a method of storing and transmitting data in a particular form so that only those for whom it is intended can read and process it. Cryptography not only protects data from theft or alteration but can also be used for user authentication.ComponentsThere are various components of cryptography which are as follows −Plaintext and CiphertextThe original message, before being transformed, is called plaintext. After the message is transformed, it is called ciphertext. An encryption algorithm transforms the plaintext into ciphertext; a ... Read More

Have you ever seen http:// or https:// in a browser's address bar while surfing a website? In a nutshell, both of these are protocols that allow a web server and a web browser to communicate about a certain website. But, what are the features that distinguish these two? Well, the most important difference between "http" and "https" is that "https" is far more secure than "http". Read through this article to find out more about "http" and "https" and how exactly they are different from each other. The protocol used to send hypertext over the Web is called the HyperText ... Read More

Both MD5 and SHA1 are hashing algorithms. MD5 is simple and fast, but it does not provide good security. SHA1 is complex as compared to MD5 and it provides greater level of security.Read through this article to find out more about these two hashing algorithms and how they are different from each other.What is MD5?MD stands for Message Digest. MD5 is a hashing algorithm that produces a 128-bit hash value.Although MD5 was created with the intention of using it as a cryptographic hash function, it has been discovered to have several flaws. Yet, it is extensively used.MD5 can be used ... Read More

Both these terms "cybersecurity" and "network security" are related to security measures that organizations employ to protect their data, systems, and network infrastructure from online threats. However, cybersecurity is used in a much broader sense, while network security is a subset of cybersecurity. Read through this article to find out more about cybersecurity and network security and how they are different from each other.What is Cybersecurity?Cyber security refers to the use of technology, methods, and policies to reduce the danger of cyber-attacks while also protecting the systems, networks, programs, devices, and data from unwanted access.The field of cybersecurity is becoming ... Read More

In this post, we will understand the difference between microkernel and monolithic kernel −MicrokernelIt is smaller in size.In this kernel, the services are kept in a separate address space.It executes slowly in comparison to monolithic kernel.It can be extended easily.If a service crashes, it effects the working of the microkernel.The code to build a microkernel is large.Examples of microkernel include: QNX, Symbian, L4Linux, Singularity, K42, Integrity, PikeOS, HURD, Minix, Mac OS X, and Coyotos.Monolithic KernelIn monolithic kernel, both user services and kernel services are kept in the same address space.Monolithic kernel is larger than microkernel.It executes quickly in comparison to ... Read More

In this post, we will understand the difference between RPC and RMI −RPC (Remote Procedure Call)It is a library.It is an OS dependent platform.It supports procedural programming.It is less efficient in comparison to RMI.It creates more overhead.The parameters passed to RPC is normal data.It is the older version of RMI.It is easy to program in RPC.It doesn’t provide any security.The cost of development is high.Versioning is a complicated process in RPC.Multiple codes will be needed to build a simple application in RPC.RMI (Remote Method Invocation)It is a platform based on Java.It supports object-oriented programming.It is more efficient in comparison to ... Read More

In computer parlance, security and protection are the two terms that seem similar at first glance. Therefore, most people use them interchangeably, but both are quite different from each other. In this article, we will highlight how "security" is different from "protection". Basically, the measures to prevent the interference with use of local and physical resources of computer systems provided by the operating system are known as security and protection. One major difference between security and protection is that security deals with the external threats on the information, while protection handles the internal threats on the information. Before going ... Read More

In this post, we will understand the difference between backup and recovery.BackupIt refers to storing a copy of the original data in a separate memory location.It is basically a copy of data that is used to restore the original data in case of a data loss/damage.It is the replication of data.It just keeps one extra copy to ensure data is not lost forever.It helps in giving data protection.It makes the process of data recovery hassle free and easy.It is an affordable process.It is used in production environments.Example - SnapManager helps create a backup of data and everything else in the ... Read More

Data Hiding and Encapsulation are important concepts in object-oriented programming (OOP). Data hiding helps prevent the illegal or unauthorized access of members of a class, while encapsulation helps in the wrapping up of data members and methods inside a class. The most basic difference between data hiding and encapsulation is that data hiding focuses on data security, while encapsulation focuses on hiding the complexity of the system. Read this article to find out more about Data Hiding and Encapsulation and how they are different from each other. Let's start with a basic overview of these two important concepts, Data Hiding ... Read More

Cybercriminals use numerous ways to take advantage of the vulnerabilities in the operating system or applications to infiltrate the device or network. One such method is using the Backdoor Attack.In this post, we would discuss what Backdoor Attack is, its types, and how to stay safe from Backdoor Attacks.What is a Backdoor Attack?In cybersecurity terms, a Backdoor Attack is an attempt to infiltrate a system or a network by maliciously taking advantage of software's weak point.Backdoors allow the attackers to quietly get into the system by deceiving the security protocols and gain administrative access. It is similar to the real-life ... Read More