Wednesday, February 26, 2020

Network and Internet Security Essay Example | Topics and Well Written Essays - 1000 words - 1

Network and Internet Security - Essay Example On the other hand, the single key encryption only uses a single secret key for both encryption and decryption of messages. A hybrid of the two that is single key and public key encryption is what the modern encryption model entails to help establish reliable secure sessions. According to De & Yung (2006, 127), session keys help enhance security of a system in cases where two parties have an encrypted connections to third party. By use of these session keys, the third party can deliver keys the other two parties on the encrypted links. Session keys are established by use of Diffie-Hellman key exchange which enables the secret exchange of keys between two users on a communication channel by the use of exchange algorithms. This way of key generation does not required the presence of a central authentication server or any key distribution center. These two users maintain a secured encrypted message through a partial share of information. Some data is privately stored while some is publicly given for the other party to use. Using exchange algorithms, the two parties can use the publicly aired data to encrypt hidden messages from senders on a crowded communication channel (De & Yung 2006, 127). User 1 computes the key using the public data given by user 2 and viceviser. Both calculations will eventually yield similar results indicating a common interpretation. Kerberos V4 uses session keys to help maintain a secured communication protocol (Bao, Deng & Zhou 2004, 30). Kerberos v4 are useful in verifying users at work places who would wish to access services within a network. Session keys use in Kerberos would restrict access only to identified and authorized users and would accurately authenticate requests for uses. These authentication procedures make the use of session keys become very relevant in Kerberos. It will be almost impossible for another side user to communicate with the server since the given session key is

Monday, February 10, 2020

American Revolution Essay Example | Topics and Well Written Essays - 1250 words - 2

American Revolution - Essay Example The British policies caused divisions in the American colonist’s faction since they did not know which step of action to take. The French and the British were the main forces in contention for the American territory and thus, fought a series of wars with the final war being the French and Indian wars or the seven years’ war. It was called the seven years’ war since the French hand garnered support of two Indian tribes, the Huron and the Algonquian, who fought against the British supporting Iroquois. Before this, however, it was assumed that the war would last longer than earlier anticipated and thus, the Albany Congress was organized under the encouragement of Britain. The main agenda for the congress was to keep the Iroquois tribe loyal to the British. This was achieved by keeping the Iroquois tribe at the heart of matters during the congress, discussing issues that affected both them and the British colonists. The Albany plan became unpopular and unaccepted sin ce the colonists had their self-interests at heart and did not want to secede control and power to the provincial congress(Alden, pp. 25-30). What were some of the events or ideas that led to the American war of independence? The main reason for the war of independence was the attempt by British colonists to gain and tighten control of the American economy by regulating American trade and industries in order to suit Britain’s interests. This was enforced in the imposition of taxes on goods and services as well as the movement of people and these goods from one region to another. Also, English trade and navigation acts only allowed transit of goods shipped from America in English ships. Britain, thus, monopolized travel which did not settle well with Indian and British colonists. All of this was aimed at reimbursement of Britain’s money that had been spent during the war. The only reason the British had emerged victorious was that their treasury had outlasted that of the French. This