1 INTRODUCTION 1. Introduction The idea of a single smart card to be used for multiple services has been around for years. Instead of using separate access devices for different services, a user can access multiple services from different service providers by a single smart card. For example, a user can use the same smart card to log on to a remote server system, enter a secure building, and perform a financial transaction. This kind of design frees people from carrying many cards,
Words: 4969 - Pages: 20
symmetric and asymmetric symmetric and asymmetric
Words: 628 - Pages: 3
circumstances using an encryption. Message integrity is the state of the data that is being transported whether it has been compromised. Yes you can have integrity without confidentiality using hash or sums in your message. You can but what is the point the purpose of the message confidentiality is so it cannot be sniffed out which relates to the integrity of the data . * R3. From a service perspective, what is an important difference between a symmetric-key system and a public-key system? From a
Words: 309 - Pages: 2
logical design C) testing plan D) co-location plan 5. The leading Web server software is: A) Apache. B) Microsoft Internet Information Server. C) Sun. D) Zeus. 6. Which of the following is used to process certificates and private/public key information? A) HTTP B) SSL C) FTP D) data capture tools 7. Which of the following cannot be used to retrieve objects from a database? A) CGI B) ASP C) JSP D) HTML 8. Which of the following types of servers monitors and controls access
Words: 1671 - Pages: 7
the encryption of message was based on symmetric key cryptography where sender and receiver of message use the same key for encryption and decryption.But, to use the same key, sender and receiver must share the key in advance. And if their locations are different than there is risk in transmission of the key. Later in 1976,a cryprosystem,which is known as Diffie-hellman key-exchange, was published by Whitefield Diffie and Martin Hellman and concept behind the cryptosystem is known as public key encryption
Words: 1261 - Pages: 6
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
Words: 923 - Pages: 4
controls, in user interface design, and their primary functions. Input control includes the necessary measures to ensure that input data is correct, complete and secure (Rosenblatt & Shelly, 2012). Some examples of input controls are audit trails, encryption, password security, and data security, just to name a few. Input Controls To begin, audit trails record the source of data each data item, and when that data enters the system (Rosenblatt & Shelly, 2012). It is a series of records of computer
Words: 821 - Pages: 4
the edge router in the foreign network or the mobile node itself). •Chapter 8—Questions R1, R3, R29. R1. Confidentiality is the property that the original plaintext message can not be determined by an attacker who intercepts the ciphertext-encryption of the original plaintext message.Message integrity is the property that the receiver can detect whether the message sent (whether encrypted or not) was altered in transit. The two are thus different concepts,and one can have one without the other
Words: 320 - Pages: 2
Symmetric Cryptography Secret writings have been found in many civilizations dating back to thousands of years where wide spread writings were adopted. Some of these civilizations included the Egyptians with their use of hieroglyphics, the Greeks and Spartan and the use of Scytale, and the Romans with the use of the Caesar Cipher. All these encryption methods could be thought of as symmetric encryption, which uses the same key to encrypt and decrypt the ciphertext. With a more contemporary look
Words: 558 - Pages: 3
