What is Cryptography? Definition of Cryptography, Cryptography Meaning - The Economic Times

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Definition of 'Cryptography'

Secure Sockets Layer (SSL) is a protocol developed by Netscape for establishing an encrypted link between a web server and a browser. SSL is an industry standard which transmits private data securely over the Internet by encrypting it. It is used by many websites to protect the online transactions of their customers. Description: SSL functions around a cryptographic system which uses three keys t

Cross-site scripting (XSS) is a type of computer security vulnerability. It is accounted for almost 85% of all website security vulnerabilities. Description: Cross-site scripting (XSS) exploits the 'same-origin-policy' concept of web applications to allow hackers to extract information from the system. How it works: Attackers conduct script injection that runs at the client side and is sometimes

DNS Spoofing is a type of computer attack wherein a user is forced to navigate to a fake website disguised to look like a real one, with the intention of diverting traffic or stealing credentials of the users. Spoofing attacks can go on for a long period of time without being detected and can cause serious security issues. Description: Domain Name Server (DNS) resolves the alphabetical domain nam

Cipher is an algorithm which is applied to plain text to get ciphertext. It is the unreadable output of an encryption algorithm. The term "cipher" is sometimes used as an alternative term for ciphertext. Ciphertext is not understandable until it has been converted into plain text using a key. Description: Earlier cipher algorithms were performed manually and were entirely different from modern al

A computer worm is a malicious, self-replicating software program (popularly termed as 'malware') which affects the functions of software and hardware programs. Description: It fits the description of a computer virus in many ways. For example, it can also self-replicate itself and spread across networks. That is why worms are often referred to as viruses also. But computer worms are different fr

A computer virus is a malicious software program loaded onto a user’s computer without the user’s knowledge and performs malicious actions. Description: The term 'computer virus' was first formally defined by Fred Cohen in 1983. Computer viruses never occur naturally. They are always induced by people. Once created and released, however, their diffusion is not directly under human control. After

Denial-Of-Service (DoS) is an attack targeted at depriving legitimate users from online services. It is done by flooding the network or server with useless and invalid authentication requests which eventually brings the whole network down, resulting in no connectivity. As a result of this, users are prevented from using a service. Description: A DoS attack is initiated by sending needless and sup

Memory corruption can be described as the vulnerability that may occur in a computer system when its memory is altered without an explicit assignment. The contents of a memory location are modified due to programming errors which enable attackers to execute an arbitrary code. Description: Memory corruption bugs mostly occur in low-level programming languages like C or C++. It is one of the proble

Trojan or Trojan horse is the name given to a computer virus. It is a type of computer software that is camouflaged in the form of regular software such as utilities, games and sometimes even antivirus programs. Once it runs on the computer, it causes problems like killing background system processes, deleting hard drive data and corrupting file allocation systems. Description: Mostly Trojans are

Authentication is the process of recognizing a user’s identity. It is the mechanism of associating an incoming request with a set of identifying credentials. The credentials provided are compared to those on a file in a database of the authorized user’s information on a local operating system or within an authentication server. Description: The authentication process always runs at the start of t

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• Cryptography Tutorial - Tutorialspoint
  Definition: Cryptography is associated with the process of converting ordinary plain text into unintelligible text and vice-versa. 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 | Computer science | Computing | Khan Academy
  Cryptography is used in all fields to secure data and prevent it from getting hacked. For example, for securing passwords, authenticating banking transactions, etc. Nowadays, various new cryptographic techniques are developed and cracked; hence, it is important always to be aware of computer threats and take precautions to avoid them as best as we can.
• What is Cryptography? Definition of Cryptography ...
  Cryptography is the science of using mathematics to encrypt and decrypt data. Cryptography enables you to store sensitive information or transmit it across insecure networks so that it cannot be read by anyone except the intended recipient.
• Cryptography Techniques | Learn Main Types Of Cryptography ...
  This is called 'decryption.' Cryptography begins when we abandon physical locks and use 'ciphers' instead. Think of [ciphers] as virtual locks. Ciphers allow Alice and Bob to scramble and descramble their messages so that they would appear meaningless if Eve intercepted them. Cryptography has been around for thousands of years.
• Cryptography - SlideShare
  Cryptography is the study of secure communications techniques that allow only the sender and intended recipient of a message to view its contents. The term is derived from the Greek word kryptos ...
• cryptography · PyPI
  This tutorial covers the basics of the science of cryptography. It explains how programmers and network professionals can use cryptography to maintain the privacy of computer data. Starting with the origins of cryptography, it moves on to explain cryptosystems, various traditional and modern ciphers, public key encryption, data integration, message authentication, and digital signatures.
• Real Life Applications of CRYPTOGRAPHY | by Prashanth ...
  Block Cipher. An encryption method that applies a deterministic algorithm along with a symmetric key to encrypt a block of text, rather than encrypting one bit at a time as in stream ciphers. Example: A common block cipher, AES, encrypts 128-bit blocks with a key of predetermined length: 128, 192, or 256 bits.
• Cryptography and its Types - GeeksforGeeks
  cryptography is a package which provides cryptographic recipes and primitives to Python developers. Our goal is for it to be your “cryptographic standard library”. It supports Python 3.6+ and PyPy3 7.2+. cryptography includes both high level recipes and low level interfaces to common cryptographic algorithms such as symmetric ciphers, message ...
• What is cryptography? (video) | Cryptography | Khan Academy
  Cryptography is technique of securing information and communications through use of codes so that only those person for whom the information is intended can understand it and process it. Thus preventing unauthorized access to information.
• What is Cryptography? | Cryptographic Algorithms | Types ...
  Unit: Cryptography. Lessons. Ancient cryptography. Learn. What is cryptography? (Opens a modal) The Caesar cipher (Opens a modal) Caesar Cipher Exploration (Opens a modal) Frequency Fingerprint Exploration (Opens a modal) Polyalphabetic cipher (Opens a modal) Polyalphabetic Exploration (Opens a modal)