be easily acquired through the internet. When considering network security, it must be emphasized that the whole network is secure. Network security does not only concern the security in the computers at each end of the communication chain. When transmitting data the communication channel should not be vulnerable to attack. Definitions – Computer Security : generic name for the collection of tools designed to protect data and to thwart hackers – Network Security : measures to protect data during
be easily acquired through the internet. When considering network security, it must be emphasized that the whole network is secure. Network security does not only concern the security in the computers at each end of the communication chain. When transmitting data the communication channel should not be vulnerable to attack. Definitions – Computer Security : generic name for the collection of tools designed to protect data and to thwart hackers – Network Security : measures to protect data during
With the growth of Internet, the usage of group communication becomes more popular. These applications include the pay TV channels, secure videoconferencing, multi-partner military action, wireless sensor, and ad hoc networks. In today’s era, information security is the prime concern as with the technological advancements, the attackers are provided with more powerful and sophisticated tools. Today, the Internet is not totally secure for privacy. The usage of multicast applications increases day
safety and security remains an issue. Steganography schemes are used to get rid of these type of safety and security issues. The standard phrase “What You See Is What You Get (WYSIWYG)” is not true if the misuse or hacking is there. One can transfer secret information through internet using Steganography schemes very easily. 1.1 Nomenclature Steganography is the word derived from a Greek word Steganos, which means, “Covered ” and graphy means “writing”. Steganography is a technique which is used
Background Cryptography is known as the method of writing secrets. The secured data and all of information from any external or internal hacks. Therefore, it provides confidentiality, integrity, authenticity and non-repudiation to secure data. The basic concepts of cryptography will be based on two terms namely plain text and cipher text. Plain text represents the message generated originally and cipher text is the message which is the encrypted text. We would decrypt the encrypted cipher text
other’s welfare and happiness. They value the unity of the family. • Appreciation and Affection. Members of strong families show appreciation for each other a great deal. They can feel how good a family is. • Positive Communication. Members of good families have good communication skills and spend large amounts of time talking with each other. • Time Together. Strong families spend time—quality time in generous quantities—with each other. • Spiritual Well–being. Whether they go to formal religious
whistle on NSA’s extensive internet and phone surveillance activities that he felt were illegitimate. Snowden worked for the NSA through subcontractor Booz Allen Hamilton as a senior analyst, and during his time with the organization, he collected top-secret documents regarding NSA’s surveillance practices with the intention of disclosing them to the public. He then went to Hong Kong and disclosed those documents to the Guardian journalists. Soon after, newspapers began printing those documents detailing
researcher and lecturer in 48 countries on the connection between employee happiness and success. In a study at the University of Warwick, economists discovered employees who were happy increased their productivity by 12%, while unhappy workers were 10% less productive. The Warwick research team stated: "We find that human happiness has large and positive causal effects on productivity. Positive emotions appear to invigorate human beings." If happiness and positivity are essential components of
In this modern era, the computer and internet have becomes the most effective and fastest media for communication that connect different parts of the global world. As a result, people can easily exchange information and share information with the others via the internet. However, the information security requires the confidential data that needs to be protected from the unauthorized users. Steganography is one of the methods used for the secure transmission of confidential information. It can provide
Cryptography. Asymmetric Cryptography. Tickets are used to authentication users, and tickets by Key Distribution Center (KDC). Each user has a key pair, private key and public key. The public key is published to others publicly; the private key is kept secret by the user. The private key is used to generate a digital signature. The public key is used to verify the digital signature signature. A password is needed to authenticate users. The private key is used to authenticate users. The private key is stored