encryption is also known as public key encryption where there are two keys, a public key and a private key (Ezeobika, 2010). One key is used to encrypt and the other to decrypt (Hitachi ID Systems, Inc., 2013). Asymmetric encryption allows users to send secret messages by encrypting with the public key that belongs to the recipient (Hitachi ID Systems, Inc., 2013). Only the recipient will be able to decrypt the message because only that person will have access to the required key (Hitachi ID Systems,
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Symmetric key encryption is also known as shared-key, single-key, secret-key, and private-key or one-key encryption. In this type of message encryption, both sender and receiver share the same key which is used to both encrypt and decrypt messages. Sender and receiver only have to specify the shared key in the beginning and then they can begin to encrypt and decrypt messages between them using that key. Examples include AES (Advanced Encryption Standard) and TripleDES (Data Encryption Standard).
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NT2580 Introduction to Information Security STUDENT COPY: FINAL EXAM 30. What does risk management directly affect? a. Company investments b. Security policy framework c. Security controls d. Number of employees 31. Which of the following is a cipher that shifts each letter in the English alphabet a fixed number of? Positions, with Z wrapping back to A? a. Transposition b. Vigenere c. Caesar d. Vernam 32. Identify a security objective that adds value to a business. a. Revocation
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313, Bucharest, Romania, Email: vladescumariusnicolae@yahoo.com Abstract—Information protection is one of the most important issues in every domain, especially when we are talking about enterprises. Information safety can be translated into three key terms: integrity, availability and data protection. There is a great number of means used in order to achieve the three objectives simultaneously. The most popular is cryptography because it offers a lot of techniques which nowadays are impossible to
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sign a new message m’ A digital signature for a document would be bits which are derived from: the document and the secret key of the signer.The public key is available freely to anyone who wants to verify the signature. Whereas the other key, which is a secret key, is only known to the one that is authorized to generate the signatures which are associated with that public key. 2 Properties of Digital Signature • Integrity: Recipients can be confident that the message has not been accidentally
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ABSTRACT The paper discusses the topics regarding, 1) Internet Frauds ;2) to analyze user’s satisfaction on internet security by using Secure Socket Layer (SSL); and 3) to make people aware of internet fraudsters. Six research questions were utilized in this study. This study examines whether secure socket layer and its certificate would protect online users from fraudsters while they browse websites. The six research questions are as follows: • Are there any security breaches occurring with the
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frame. Draw a timing diagram between client and server, with one arrow for each SSL record. Frame Source SSL Count SSL Type 106 Client 1 Client Hello 108 Server 1 Server Hello 111 Server 2 Certificate Server Hello Done 112 Client 3 Client Key Exchange Change Cipher Spec Encrypted Handshake Message 113 Server 2 Change Cipher Spec Encrypted Handshake Message 114 Client 1 Application Data 122 Server 1 Application Data 127 Server 1 Application Data 2. Each of the SSL records begins
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can change his location to that directory or subdirectory so long as he specifies its exact name. Question 2 Benny is a thief who tried to break into an Automated Teller Machine (ATM) using a screwdriver, but was only able to break five different keys on the numeric keypad and jam the card reader, at which point he heard Alice coming, so he hid. Alice walked up, put in her ATM card, successfully entered her 4-digit PIN, and took some cash. But she was not able to get her card back, so she drove
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symmetric and asymmetric symmetric and asymmetric
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Some Problems in Symmetric and Asymmetric Cryptography A thesis submitted for the partial fulfillment of the degree of Doctor of Philosophy in Mathematics By SANTOSH KUMAR YADAV Under the supervision of Prof. Sunder Lal and Prof. S. C. Arora DEPARTMENT OF MATHEMATICS DR. B. R. AMBEDKAR UNIVERSITY, AGRA (FORMERLY AGRA UNIVERSITY) 2010 *Sanskrit verse dating back to the pre-Christian era Dedicated to my Teachers, Friends, Students and Family Members DECLARATION I do hereby declare
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