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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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   • 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 Industrial Control Systems (ICS)

     Cryptography plays a crucial role in securing data and communication in the Industrial Control Systems (ICS) which encompass the technology and processes used to control and automate industrial operations. This article explores the fundamental aspects of the cryptography in context of the ICS ensuring the confidentiality, integrity, and authenticity of critical information.

     Cryptography in ICS

     A graphical representation of the cryptographic processes within the Industrial Control Systems, highlighting encryption, decryption, digital signatures, and secure communication protocols.

     Key Terminologies

     • Industrial Control Systems (ICS): The Systems that manage and control industrial processes including the supervisory control and data acquisition (SCADA) systems.
     • Cryptography: The practice and study of the techniques for the secure communication and data protection.
     • Confidentiality: Ensuring that information is only accessible to the authorized entities.
     • Integrity:...

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     3/5

   • 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

     4/5

   • 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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2. People also ask

   What is cryptography & how does it work?

   • Cryptography is defined as a secure way of transferring information between two users/companies so that no mediator comes into play. In Cryptography, various encryption techniques are used to provide security and authentication to data.

   How is Cryptography Used for Security and Authentication?

   www.geeksforgeeks.org/how-is-cryptography-used-for-security-and-authentication/

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   What is cryptography based on?

   • Modern cryptography is heavily based on mathematical theory and computer science practice; cryptographic algorithms are designed around computational hardness assumptions, making such algorithms hard to break in actual practice by any adversary.

   Cryptography - Wikipedia

   en.wikipedia.org/wiki/Cryptography

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   Why is cryptography used for security and authentication?

   • Cryptography not only provides security and authentication but also ensures data integrity and non-repudiation of data. It ensures that there is no data-loss or data change in between the process. How is Cryptography used for Security and Authentication? -FAQs Is Symmetric key cryptography better than Asymmetric Key Cryptography?

   How is Cryptography Used for Security and Authentication?

   www.geeksforgeeks.org/how-is-cryptography-used-for-security-and-authentication/

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   Why do most Internet users have access to cryptography?

   • Since this relaxation in US export restrictions, and because most personal computers connected to the Internet include US-sourced web browsers such as Firefox or Internet Explorer, almost every Internet user worldwide has potential access to quality cryptography via their browsers (e.g., via Transport Layer Security ).

   Cryptography - Wikipedia

   en.wikipedia.org/wiki/Cryptography

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

   en.wikipedia.org › wiki › Cryptography

   • Cached

   1 day ago · Cryptography, or cryptology (from Ancient Greek: κρυπτός, romanized: kryptós "hidden, secret"; and γράφειν graphein, "to write", or -λογία-logia, "study", respectively), is the practice and study of techniques for secure communication in the presence of adversarial behavior.

4. www.geeksforgeeks.org › how-hashing-algorithm-usedHow Hashing Algorithm Used in Cryptography? - GeeksforGeeks

   www.geeksforgeeks.org › how-hashing-algorithm-used

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   May 16, 2024 · A cryptographic hash function (or cryptographic hash algorithm) is an algorithm that is not computationally efficient (no attack is more efficient than brute force) when it is used to find either: A data object which maps to a predefined hash result; Two data objects that map to the hash result in collision-free property.

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6. www.geeksforgeeks.org › message-integrity-inMessage Integrity in Cryptography - GeeksforGeeks

   www.geeksforgeeks.org › message-integrity-in

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   May 16, 2024 · Message integrity in cryptography ensures that a message has not been tampered with or changed. The most typical method is to use a hash function, which combines all the bytes in the message with a secret key to generate a message digest that is difficult to reverse.

7. www.geeksforgeeks.org › how-is-cryptography-usedHow is Cryptography Used for Security and Authentication?

   www.geeksforgeeks.org › how-is-cryptography-used

   • Cached

   May 14, 2024 · Cryptography is defined as a secure way of transferring information between two users/companies so that no mediator comes into play. In Cryptography, various encryption techniques are used to provide security and authentication to data.

8. epn.org › what-is-cryptography-in-computer-networkWhat is cryptography in computer network? - EPN

   epn.org › what-is-cryptography-in-computer-network

   • Cached

   May 26, 2024 · Cryptography ensures the confidentiality, integrity, and authenticity of data transmitted over computer networks. It protects sensitive information from unauthorized access, interception, and tampering.

9. en.wikipedia.org › wiki › Transport_Layer_SecurityTransport Layer Security - Wikipedia

   en.wikipedia.org › wiki › Transport_Layer_Security

   • Cached

   1 day ago · Transport Layer Security ( TLS) is a cryptographic protocol designed to provide communications security over a computer network. The protocol is widely used in applications such as email, instant messaging, and voice over IP, but its use in securing HTTPS remains the most publicly visible. The TLS protocol aims primarily to provide security ...

10. brilliant.org › wiki › secure-hashing-algorithmsSecure Hash Algorithms | Brilliant Math & Science Wiki

    brilliant.org › wiki › secure-hashing-algorithms

    • Cached

    2 days ago · Secure Hash Algorithms, also known as SHA, are a family of cryptographic functions designed to keep data secured. It works by transforming the data using a hash function: an algorithm that consists of bitwise operations, modular additions, and compression functions.