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1. Top results related to cryptography in computer networks

   • Cryptography in Wireless Sensor Networks

     Wireless Sensor Networks (WSNs) have turned out to be indispensable in diverse programs, along with environmental tracking, healthcare, industrial automation, and clever cities. However, those networks are regularly deployed in hard and potentially opposed environments, making statistics safety a pinnacle precedence. Cryptography, the science of secure conversation, plays an essential position in safeguarding statistics in WSNs. This advent affords an overview of the significance of cryptography in WSNs.

     Primary Terminologies

     Cryptography in WSN

     Data Confidentiality

     The data is being hidden from other unauthorised parties with the help of WSN. Cryptography is used to encrypt the records, making it unreadable to unauthorized parties who intercept it in the course of transmission.

     Data Integrity

     Data sometimes gets leaked, to avoid that the cryptography in WSN uses data integrity meaning, that the data won’t be tampered while transmission. Hash functions and virtual signatures can be used to confirm the integrity of the data.

     Authentication

     Ensuring the authenticity of sensor nodes is vital in WSNs. Digital certificates and public key infrastructure is used for digital certification in order to ensure that the data is secured and no intruder invades the privacy...

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     1/5

   • Cryptography in Blockchain

     One of the important questions that always comes to our mind is How blockchain is secure? and What makes blockchain secure? Blockchain security is built on two concepts Cryptography and Hashing. This article focuses on discussing these two important concepts in detail.

     Cryptography in Blockchain

     Cryptography is a method of securing data from unauthorized access. In the blockchain, cryptography is used to secure transactions taking place between two nodes in a blockchain network. As discussed above, in a blockchain there are two main concepts cryptography and hashing. Cryptography is used to encrypt messages in a P2P network and hashing is used to secure the block information and the link blocks in a blockchain. 

     Cryptography primarily focuses on ensuring the security of participants, transactions, and safeguards against double-spending. It helps in securing different transactions on the blockchain network. It ensures that only the individuals for whom the transaction data is intended can obtain, read and process the transaction. 

     Role of Cryptography in Blockchain

     Blockchain is developed with a range of different cryptography concepts. The development of cryptography technology promotes restrictions for the further development of blockchain. 

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     2/5

   • Cryptography in IoT (Internet of Things)

     Cryptography plays a vital role in securing information and data through the use of codes that transform the data into an unreadable format without a proper key thus preventing unauthorized access. In simple words, we can say that organizations use cryptography to secure communication channels.

     What is IoT?

     The Internet of Things (IoT) describes a network of physical devices, like appliances and vehicles, equipped with sensors, and software. These environmentally aware objects can gather data about their surroundings and communicate with other devices to share information. Sensors are a major part of any IoT application. Sensors gather real-time information from the environment such as temperature, pressure, and more. It is massively scalable and efficient with less power.

     Let’s look at a real-world example, Modern refrigerators often come with in-built sensors that detect if the door has been left open for an extended period. These sensors trigger an alert system, such as an audible beep to notify the user to close the door so that optimal temperature and energy efficiency can be maintained.

     Why Do We Need Cryptography in IoT?

     IoT devices pump out large amounts of sensitive...

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     3/5

   • Cryptography in NodeJs (SHA-1 ?)

     Top Answer

     Answered Dec 18, 2017 · 0 votes

     Node.js provides crypto module for you.

     const crypto = require('crypto');crypto.createHash('sha1').update(stringToSign).digest('base64');-

     Check all answers on Stack Overflow

     4/5

   • Cryptography in Blockchain

     One of the important questions that always comes to our mind is How blockchain is secure? and What makes blockchain secure? Blockchain security is built on two concepts Cryptography and Hashing. This article focuses on discussing these two important concepts in detail.

     Cryptography in Blockchain

     Cryptography is a method of securing data from unauthorized access. In the blockchain, cryptography is used to secure transactions taking place between two nodes in a blockchain network. As discussed above, in a blockchain there are two main concepts cryptography and hashing. Cryptography is used to encrypt messages in a P2P network and hashing is used to secure the block information and the link blocks in a blockchain. 

     Cryptography primarily focuses on ensuring the security of participants, transactions, and safeguards against double-spending. It helps in securing different transactions on the blockchain network. It ensures that only the individuals for whom the transaction data is intended can obtain, read and process the transaction. 

     Role of Cryptography in Blockchain

     Blockchain is developed with a range of different cryptography concepts. The development of cryptography technology promotes restrictions for the further development of blockchain. 

     Check all answers on Geeksforgeeks

     5/5

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2. www.geeksforgeeks.org › cryptography-and-its-typesCryptography and its Types - GeeksforGeeks

   www.geeksforgeeks.org › cryptography-and-its-types

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   Apr 26, 2024 · Cryptography is a technique of securing communication by converting plain text into ciphertext. It involves various algorithms and protocols to ensure data confidentiality, integrity, authentication, and non-repudiation. In this article, we will discuss cryptography and its types.

3. www.csoonline.com › article › 569921What is cryptography? How algorithms keep information secret ...

   www.csoonline.com › article › 569921

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   May 22, 2022 · Feature. May 22, 2022 13 mins. Encryption Internet Security Network Security. Public keys, private keys, and hash functions make the secure internet possible. Credit: Getty Images. Cryptography...

4. www.ibm.com › topics › cryptographyWhat Is Cryptography? | IBM

   www.ibm.com › topics › cryptography

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   Cryptography is the practice of developing and using coded algorithms to protect and obscure transmitted information so that it may only be read by those with the permission and ability to decrypt it. Put differently, cryptography obscures communications so that unauthorized parties are unable to access them.

5. www.geeksforgeeks.org › cryptography-introductionCryptography Introduction - GeeksforGeeks

   www.geeksforgeeks.org › cryptography-introduction

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   Mar 20, 2023 · Last Updated : 20 Mar, 2023. Cryptography is the study and practice of techniques for secure communication in the presence of third parties called adversaries. It deals with developing and analyzing protocols that prevents malicious third parties from retrieving information being shared between two entities thereby following the various aspects ...

6. www.fortinet.com › what-is-cryptographyWhat is Cryptography? Definition, Importance, Types | Fortinet

   www.fortinet.com › what-is-cryptography

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   Cryptography is the process of hiding or coding information so that only the person a message was intended for can read it. The art of cryptography has been used to code messages for thousands of years and continues to be used in bank cards, computer passwords, and ecommerce.

7. en.wikipedia.org › wiki › CryptographyCryptography - Wikipedia

   en.wikipedia.org › wiki › Cryptography

   • Cached

   Since then, cryptography has become a widely used tool in communications, computer networks, and computer security generally. Some modern cryptographic techniques can only keep their keys secret if certain mathematical problems are intractable , such as the integer factorization or the discrete logarithm problems, so there are deep connections ...

8. www.techtarget.com › definition › cryptographyWhat is Cryptography? Definition from SearchSecurity - TechTarget

   www.techtarget.com › definition › cryptography

   Cryptography is the process of encrypting and decrypting data. Cryptographic algorithms. Cryptosystems use a set of procedures known as cryptographic algorithms, or ciphers, to encrypt and decrypt messages to secure communications among computer systems, devices and applications.