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Last Updated : 16 Sep, 2019

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What is Message and Message Digest in Cryptography? A Message is any information that flows via the network, such as files, emails, and financial transactions, from one device to another or from a set of devices. When a message is sent over a network, it must be secure to ensure that it is safe from anybody sitting in the middle listening to the conversation and having the ability to access, alter, 6 min read What is the Difference Between Document Fingerprint and Message Digest? Technologies like Document Fingerprint and Message Digests play crucial roles in the wide area of data security and lack of honesty. These cryptographic techniques serve distinctive functions, but they are all grounded on the principle of the authenticity and integrity of digital assets. The goal of this article is to get down to the root of the ma 7 min read Difference Between Mac and Message Digest MAC and Message Digest are two widely used terms in computer security and cryptography. Although the two are important in the process of ensuring data integrity and authenticity, they differ in their use and characteristics. This article seeks to differentiate MAC from Message Digest by expounding on each concept’s definitions and how each works in 6 min read Information Classification in Information Security Information classification is a process used in information security to categorize data based on its level of sensitivity and importance. The purpose of classification is to protect sensitive information by implementing appropriate security controls based on the level of risk associated with that information. There are several different classificat 7 min read Information Assurance vs Information Security In the world of modern technologies, the security of digital information is an important aspect. Cyber-attacks and theft, exploitation and loss of data are the constant threats these days. To prevent all these, there is a variety of techniques available. But in all other ways, the two most common and used ways are information Assurance and informat 9 min read Principle of Information System Security : Security System Development Life Cycle INTRODUCTION: The Security System Development Life Cycle (SSDLC) is a framework used to manage the development, maintenance, and retirement of an organization's information security systems. The SSDLC is a cyclical process that includes the following phases: Planning: During this phase, the organization identifies its information security needs and 7 min read Cybersecurity vs Network Security vs Information Security The security of a computer network is a crucial task. It is a process of ensuring confidentiality and integrity. A system is said to be secure if its resources are used and accessed as intended under all the circ*mstances, but no system can guarantee absolute security from several of various malicious threats and unauthorized access. In this articl 3 min read Difference Between Cyber Security and Information Security Cyber security and information security are two ways to protect important information. Cyber security is about keeping computer systems and networks safe from bad people who try to break in or cause harm online. It deals with things like stopping hackers, fixing computer problems, and making sure websites work properly. Information security, on the 7 min read Difference between Information Security and Network Security Security of the data and safe networks in the world which connects digitally is the most important step in today’s world for everyone. Hence, it is crucial to pinpoint differences between the various aspects of security due to the constant developments of cyber threats. Two major concepts are often mentioned in this regard and they are Information 7 min read Difference Between Digest and Digital Signature A Digest acts like a fingerprint for data that verifies if it is altered, and a Digital Signature is similar to a secret code, confirming the sender's identity and data integrity. Knowing the contrast between a digest and a digital signature is important for protecting digital information. In this article, we will understand the difference between 5 min read What is the difference between a digest and a hash function? Digest and Hash Functions are two important aspects of cryptography. In cryptography, we pass an input text from any algorithm that generates some secured text. Now that algorithm is called a hash function and that secured text is called a digest. From here we can conclude that in cryptography we pass original text from the hash function to generat 5 min read Encryption vs Digest in Cryptography Encryption and Digest algorithms are used prominently in cryptography to protect the information which is always in high demand. Both are used as protection for data, however, their roles and capabilities of use are quite varied. Encryption replaces the normal or readable form of information (plaintext) with an unreadable form (ciphertext) to maint 6 min read Risk Management for Information Security | Set-1 Prerequisite - Threat Modelling A risk is nothing but intersection of assets, threats and vulnerability. A+T+V = R NIST SP 800-30 Risk Management Guide for Information Technology Practitioners defines risk as a function of the likelihood of a given threat-source exercising a particular potential vulnerability, and the resulting impact of that adver 2 min read Risk Management for Information Security | Set-2 Prerequisite - Risk Management | Set-1 2. Risk Assessment - Risk Management is a recurrent activity, on the other hand Risk assessment is executed at discrete points and until the performance of the next assessment. Risk Assessment is the process of evaluating known and postulated threats and vulnerabilities to determine expected loss. It also incl 7 min read Information System and Security Prerequisite - Information Security, Threats to Information Security INTRODUCTION: An information system (IS) is a collection of hardware, software, data, and people that work together to collect, process, store, and disseminate information. An IS can be used for a variety of purposes, such as supporting business operations, decision making, and co 5 min read Digital Forensics in Information Security Digital Forensics is a branch of forensic science which includes the identification, collection, analysis and reporting any valuable digital information in the digital devices related to the computer crimes, as a part of the investigation. In simple words, Digital Forensics is the process of identifying, preserving, analyzing and presenting digital 2 min read Information Security | Confidentiality Confidentiality is the protection of information in the system so that an unauthorized person cannot access it. This type of protection is most important in military and government organizations that need to keep plans and capabilities secret from enemies. However, it can also be useful to businesses that need to protect their proprietary trade sec 5 min read Information Security | Integrity Integrity is the protection of system data from intentional or accidental unauthorized changes. The challenges of the security program are to ensure that data is maintained in the state that is expected by the users. Although the security program cannot improve the accuracy of the data that is put into the system by users. It can help ensure that a 3 min read Information Security and Computer Forensics Computer forensics (also referred to as Computer forensic science) is a branch of digital forensic science regarding proof found in computers and digital storage media. The aim of computer forensics is to look at digital media in a very forensically sound manner with the aim of distinctive, preserving, recovering, analyzing and presenting facts and 6 min read Need Of Information Security Information system means to consider available countermeasures or controls stimulated through uncovered vulnerabilities and identify an area where more work is needed. The purpose of data security management is to make sure business continuity and scale back business injury by preventing and minimizing the impact of security incidents. The basic pr 9 min read Principle of Information System Security : History Information security (IS) is designed to protect the confidentiality, integrity and availability of data from those with malicious intentions of misusing that data in many manners. These are set of techniques used for managing the tools and policies to prevent and detect information stored in digital or non-digital media. It is often confused with 6 min read Principle of Information System Security Information System Security or INFOSEC refers to the process of providing protection to the computers, networks and the associated data. With the advent of technology, the more the information is stored over wide networks, the more crucial it gets to protect it from the unauthorized which might misuse the same. Every organisation has the data sets 4 min read Availability in Information Security Prerequisite - Information Security Availability is one of the three basic functions of security management that are present in all systems. Availability is the assertion that a computer system is available or accessible by an authorized user whenever it is needed. Systems have high order of availability to ensures that the system operates as expec 3 min read Vulnerabilities in Information Security Vulnerabilities are weaknesses in a system that gives threats the opportunity to compromise assets. All systems have vulnerabilities. Even though the technologies are improving but the number of vulnerabilities are increasing such as tens of millions of lines of code, many developers, human weaknesses, etc. Vulnerabilities mostly happened because o 2 min read Information Assurance Model in Cyber Security Information Assurance concerns implementation of methods that focused on protecting and safeguarding critical information and relevant information systems by assuring confidentiality, integrity, availability, and non-repudiation. It is strategic approach focused which focuses more on deployment of policies rather than building infrastructures. Info 5 min read Information Security - Return To LIBC A buffer overflow was one of the very first vulnerabilities, so when it was published, back in 1996, information security wasn't a popular field, and it wasn't clear how to go about it. Solutions like reordering the variables showcase this well. Security researchers didn't understand hackers, didn't know how to think like them, and because of that 6 min read Slammer Worm in information Security Slammer Worm is known as sapphire, Helkern, etc. This is the fastest spreading worm in the year 2003 and some called this a 'Worhol worm'. It was discovered on 25 January but some traces were found to be similar on 20 January. It generated a massive amount of network packets that lead to the overloading of servers and slowing down the traffic of th 4 min read Least Privilege in Information Security Least privilege may be a foundational security principle and may be applied widely to hide access to information or the power to perform some action on a system. Users should be ready to access only the knowledge they have and perform only the actions necessary for his or her role. In information security, the least privilege also referred to as th 4 min read Trojan Horse in Information Security Any malicious software intended to harm or exploit any programmable device, service, or network is referred to as malware. Malware includes computer viruses, worms, Trojan horses, ransomware, spyware, and other malicious programs. In this article we will understand about Trojan Horse virus. What is a Trojan Horse?The name of the Trojan Horse is tak 8 min read Approaches to Information Security Implementation In order to determine the safety of data from potential violations and cyberattacks, the implementation of the security model has an important phase to be carried out. In order to ensure the integrity of the security model, it can be designed using two methods: 1. Bottom-Up Approach: The company's security model is applied by system administrators 5 min read

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Computer Networks
GATE CS
cryptography
Information-Security

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