Found 1906 Articles for Data Structure

There are various applications of cryptography which are as follows −Secrecy in Transmission − Some existing secrecy systems for transmission access a private key system for converting transmitted data because it is the quickest approach that functions with rational guarantee and low overhead.If the multiple conversing parties is minute, key distribution is implemented periodically with a courier service and key preservation based on physical security of the keys over the method of use and destruction after new keys are disseminated.Secrecy in Storage − Secrecy in storage is frequently preserved by a one-key system where the user provide the key to ... Read More

Secure Sockets Layer (SSL) is a standard protocol used for the protected transmission of files over a network. It is developed by Netscape, SSL technology makes a secure link between a network server and browser to provide private and integral data transmission. SSL needs Transport Control Protocol (TCP) for communication.When using SSL for secure web transactions, a Web server require an SSL certificate to create a secure SSL connection. SSL encrypts network connection segments following the transport layer, which is a network connection element the program layer.SSL follows an asymmetric cryptographic mechanism, in which an internet browser generates a public ... Read More

Cryptography is an automated numerical tool that plays an essential role in network security. It provides the confidentiality and integrity of data and supports authentication and non-repudiation to the users.Cryptography can play some multiple roles in user authentication. Cryptographic authentication systems support authentication capabilities through the need of cryptographic keys known or consumed only by authorized entities. Cryptography also provides authentication through its extensive use in other authentication systems.Password systems apply cryptography to encrypt stored password files, card/token system apply cryptography to secure sensitive stored data, and hand-held password generators often apply cryptography to make random, dynamic passwords.Cryptography is generally ... Read More

Unknown attack category defines a completely new class label that the classifier has not undergone before in the training set. For example, if the classifier was not trained on DoS attacks and undergone DoS attacks in the testing set.There are the technologies that supports imperative levels of protection against unknown attacks including software fault isolation, intrusion detection through program analysis.These technologies distribute an imperative property: they do not based on the efficient operation of the programs. Rather than, they provide a secondary layer of protection should a program be breached and corrupted. It is available that these systems can also ... Read More

Security Management for networks is different for all type of situations. A small home or an office would only need basic security while high businesses will need high maintenance and advanced software and hardware to avoid malicious attacks from hacking and spamming.Small HomesA basic firewall.For Windows users, basic Anti-virus software such as McAfee, Norton AntiVirus or AVG Antivirus.An anti-spyware program including Windows Defender or Spybot would also be a best concept. There are some types of antivirus or antispyware programs out there to be considered.When utilizing a wireless connection, use a robust password. It can also use the strongest security ... Read More

A trusted network addresses the following security issues such as partially or completely which are as follows −Firewall Configuration Errors (Partial) − A TPCN divides the group of firewall rules into smaller rule sets related to each access control group or role. These rule sets are sent by the AAA server to the NADs for administration upon completion of the authentication process.As per the several configuration errors reduces logarithmically as the rule set complexity decreases. Because a TPCN has smaller rule sets, the capability for firewall configuration errors is properly lower. Furthermore, access rules in a TPCN are defined based ... Read More

A trusted network architecture facilitate information about the hardware and software states of devices in admission and access control decisions. When a device first “joins” the network, its hardware and software are tested; depends on these checks, the appropriate access control rules are used dynamically to the user, device and traffic.In a trusted network, a user device determined to join the network connects its request to the NAD. The NAD creates the client device’s identity using EAP over the 802.1x protocol and sends the results to the AAA server utilizing the RADIUS protocol. The AAA server fix a document of ... Read More

Trusted networks are represented as the networks within your security boundary, and are generally the networks it is trying to defend. Computers on the trusted network can certainly access such departmental services as NFS (home and project disks), NIS (distributed account and multiple data), printers, software packages, etc.Access to this network is secured to machines supervised by the Lab Staff, so as to secure sensitive information and uphold the accessibility of departmental resources. A recent list of machines on the trusted network can be situated here.A trusted network (TN) architecture uses current standards, protocols and hardware devices to implement “trust.” ... Read More

Network security management is the study of managing firewalls and policies to secure the network and is best completed through a centralized solution. Network security management includes several rules and processes adopted by network administrators to provide that unauthorized users do not obtain access.Security contains a host of policies that limit access. The process creates the network secure and protects and manages network services. The essential form of network security supports users the ability to distribute a password or ID to individuals to support access.Network administrators control and should decide the users who can access network data. These users are ... Read More

Network security is a group of technologies that secure the usability and integrity of a company’s infrastructure by avoiding the entry or proliferation within a network of a broad variety of potential threats.A network security architecture is composed of tools that secure the network itself and the software that run over it. Effective network security methods employ several lines of defence that are scalable and automated. Each defensive layer apply a group of security policies decided by the administrator.Network security works with several layers of protection at the edge and in between the network. Some security layers implement some strategies ... Read More