Encryption and secure computer networks (original) (raw)

Data Security and Encryption in Network environment

The rapid growth and widespread use of electronic data processing and electronic business conducted through the Internet, along with numerous occurrences of international terrorism, fuelled the need for better methods of protecting the computers and the information they store, process and transmit. The academic disciplines of computer security, information security and information assurance emerged along with numerous professional organizations – all sharing the common goals of ensuring the security and reliability of information systems. The security requirements of the Network environment are not unlike those of other distributed computing systems. Thus, having an internal control mechanism to assure the confidentiality, integrity and availability of data in a distributed environment is of paramount importance.

CRYPTOGRAPHIC TECHNIQUES- ESSENTIAL APPLICATIONS IN NETWORK ADMINISTRATION

Network Security is the most vital component in information security because it is responsible for securing all information passed through networked computers. Network Security refers to all hardware and software functions, characteristics, features, operational procedures, accountability, measures, access control, and administrative and management policy required to provide an acceptable level of protection for Hardware and Software , and information in a network. Only one particular element underlies many of the security mechanisms in use: Cryptographic techniques; hence our focus is on this area Cryptography. Cryptography is an emerging technology, which is important for network security. Research on cryptography is still in its developing stages and a considerable research effort is still required for secured communication.

CRYPTOGRAPHY TECHNOLOGY WITH NETWORK SECURITY

International Journal for Recent Development in Science & Technology, 2020

Network Security & Cryptography is a concept to protect network and data transmission over wireless network. Data Security is the main aspect of secure data transmission over unreliable network. Network security involves the authorization of access to data in a network, which is controlled by the network administrator. Users choose or are assigned an ID and password or other authenticating information that allows them access to information and programs within their authority. Network security covers a variety of computer networks, both public and private, that are used in everyday jobs conducting transactions and communications among businesses, government agencies and individuals. Networks can be private, such as within a company, and others which might be open to public access. Network security is involved in organizations, enterprises, and other types of institutions. In this paper we also studied cryptography along with its principles. Cryptographic systems with ciphers are described. The cryptographic models and algorithms are outlined.

Using encryption for authentication in large networks of computers

Communications of The ACM, 1978

R o g e r M . N e e d h a m a n d M i c h a e l D . S c h r o e d e r X e r o x P a l o A l t o R e s e a r c h C e n t e r Use of encryption to achieve authenticated communication in computer networks is discussed. Example protocols are presented for the establishment of authenticated connections, for the management of authenticated mail, and for signature verification and document integrity guarantee. Both conventional and public-key encryption algorithms are considered as the basis for protocols.

NETWORK SECURITY AND CRYPTOGRAPHY

NETWORK SECURITY AND CRYPTOGRAPHY , 2024

The idea of network security involves using encryption to secure data transmitted wirelessly and guarantee message contents remain confidential. The primary component of safe data transfer across an unstable network is data security. Authorizing access to data on a network, which is under the network administrator's authority, is a component of network security. Both the public and private sectors of computer networks use network security. Both private and public networks are utilized in businesses, organizations, universities, etc. Ensuring the security of end systems and the network as a whole is the responsibility of network security. Numerous applications, including those in banks, businesses, organizations, government agencies, and enterprises, require network security. Cryptography: When a sender applies a hash function-a cryptographic operation-to the original message, nobody else can decipher the message received save for the person holding the decipher key. A hash function is a mathematical representation of data, and the receiver determines the value of this hash function whenever any new data is received. Data security is achieved via a method known as cryptography. Therefore, it can be said that cryptography is a cutting-edge technology that is crucial to network security. Early on, however limited in its application, encryption was utilized to safeguard diplomatic correspondence, military secrets, and national security. The development of communication has led to a significant expansion in the spectrum of applications for cryptography in this modern domain. Cryptography is a vital tool for protecting electronic commerce and is practically necessary to guarantee that data is safe from intrusions.

Use of Cryptography and Signing for Network Security

International Journal for Research in Applied Science & Engineering Technology (IJRASET), 2022

With technological advancements along with tremendous generation and storage of sensitive data, which can be cryptographic keys, passwords or other data that can be crucial for operation of an organization, there is a need to secure this sensitive data starting from its creation, its transfer from one place to another and its final place of storage. This can be done with the help of cryptography and cryptographic algorithms that can help secure this entire process. With cryptography, it is possible to securely transfer sensitive data to ensure that it cannot be read or tampered by a third party. Cryptography and its related algorithms can also be used to secure the network for safe transfer and storage of sensitive data. In this paper, starting with a brief introduction to cryptography concepts and some networking protocols, we shall discuss and compare usage of an algorithm such as AES, hashing and importance of Digital Certificates and Signing operation along with encryption for better security. I.

Review on Network Security and Cryptography

Science and Education Publishing

With the advent of the World Wide Web and the emergence of e-commerce applications and social networks, organizations across the world generate a large amount of data daily. Data security is the utmost critical issue in ensuring safe transmission of information through the internet. Also network security issues are now becoming important as society is moving towards digital information age. As more and more users connect to the internet it attracts a lot of cyber-criminals. It comprises authorization of access to information in a network, controlled by the network administrator. The task of network security not only requires ensuring the security of end systems but of the entire network. In this paper, an attempt has been made to review the various Network Security and Cryptographic concepts. This paper discusses the state of the art for a broad range of cryptographic algorithms that are used in networking applications.

Network Security Using Cryptographic Techniques

2012

Network Security is the most vital component in information security because it is responsible for securing all information passed through networked computers. Network Security refers to all hardware and software functions, characteristics, features, operational procedures, accountability, measures, access control, and administrative and management policy required to provide an acceptable level of protection for Hardware and Software , and information in a network. Only one particular element underlies many of the security mechanisms in use: Cryptographic techniques; hence our focus is on this area Cryptography. Cryptography is an emerging technology, which is important for network security. Research on cryptography is still in its developing stages and a considerable research effort is still required for secured communication.

Secure Communication Using Encryption, Challenges and O

Security is the fundamental concern in information systems and the data they carry that can be in either one of the three states: stationary or in transit or being processed. Institutions usually use computer systems that form part of the Internet/internet to carry their data thus making it vulnerable to attacks. In this paper we look at providing security using encryption to protect data/information. Different types of encryption schemes and cryptographic services are surveyed. Steps to create a cryptographic scheme are illustrated. Merit/demerits of the schemes, challenges and open issues in this area of cryptography are highlighted.