Architecture - Classical Encryption techniques – Cipher Principles – Data Encryption Standard – Block Cipher Design Principles and Modes of Operation - Evaluation criteria for AES – AES Cipher – Triple DES – Placement of Encryption Function – Traffic Confidentiality UNIT II PUBLIC KEY CRYPTOGRAPHY 9+3 Key Management - Diffie-Hellman key Exchange – Elliptic Curve Architecture and Cryptography - Introduction to Number Theory – Confidentiality using Symmetric Encryption – Public Key Cryptography
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or corrupted‚ so the idea of data security was born. Data security helps people keep their files confidential and keep it protected. Data security’s purpose is to keep data from being used by unauthorized users. A form of data security is encryption‚ encryption works but scrambling letters and numbers into an unreadable code. Only the authorized users will have the key to unscramble the code and get the correct data. Data protection and security allows users to identify and view the issues and risk
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Chapter 11 Enterprise Resource Planning Systems 1. Closed database architecture is a. a control technique intended to prevent unauthorized access from trading partners. b. a limitation inherent in traditional information systems that prevents data sharing. c. a data warehouse control that prevents unclean data from entering the warehouse. d. a technique used to restrict access to data marts. e. a database structure that many of the leading ERPs use to support OLTP applications. 2. Each of the following
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or a PDF manual. | Infinite Conferencing | InterCall | ClickMeeting | Ready Talk | Adobe Connect Pro | Monthly Price | $35.00 | $42.00 | $10.00 | $49.00 | $55.00 | No Required Installation | yes | no | yes | yes | Yes | 128-Bit AES Encryption | yes | yes | no | yes | yes | Maximum Web Attendees | 1000 | 125 | 1000 | 25 | 50 | File Transfer | yes | yes | yes | yes | Yes | Record Meetings | yes | yes | yes | yes | yes | Support | yes | yes | yes | yes | yes | Online/PDF Manuals
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Advanced Encryption Standard (AES) Most of lecture slides by Lawrie Brown Origins clear a replacement for DES was needed have theoretical attacks that can break it have demonstrated exhaustive key search attacks can use Triple-DES – but slow‚ has small blocks US NIST issued call for ciphers in 1997 15 candidates accepted in Jun 98 5 were shortlisted in Aug-99 Rijndael was selected as the AES in Oct-2000 issued as FIPS PUB 197 standard in Nov-2001 AES Requirements private
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department. The department currently operates on an Apple iMac with 2 gigahertz‚ 350-megabyte hard drive wireless with Mac OS X including Leopard and Windows XP. All patient files are encrypted for storage using AES. Advanced Encryption Standard is highly secure using 256-bit AES encryption for sensitive data. The Human Resource department also needs to have their sensitive data secure. The Human Resources department performs many functions including all of the accounting for the hospital. The hospital accounting
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CHAPTER 4: PRIVACY PRIVACY PROTECTION AND THE LAW Privacy – Key concern of Internet users – Top reason why nonusers still avoid the Internet THE RIGHT OF PRIVACY Definitions -the right to be alone – the most comprehensive of rights‚ and the right most valued by people. (Justice Louis Brandeis‚ Olmstead v. US‚ 1928) -the right of individuals to control the collection and use of information about themselves. Legal Aspects Protection from unreasonable intrusion upon one’s isolation
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broadcast so wireless networks are harder to detect. A spectrum analyzer can still be used to find the network name. Create a more complex SSID and password settings in your AP WEP Stands for Wired Equivalency Privacy. Uses 64 bit or 128 bit encryption. (including 24-bit IV) In larger networks‚ IV’s can be duplicated and cause collisions‚ which are easy to detect by outside influences Use WPA2 with AES or similar instead on larger‚ enterprise deployments. Of the six categories of attackers
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only existing copies of a pass-key that‚ if made public‚ could enable the use of an encryption program that would create coded messages that would be entirely unbreakable thereby rendering the NSA obsolete and allowing undecipherable communications between terrorist organizations and crime rings throughout the world. The storyline takes place mainly in two separate locations: the top two members of the encryption team trying to break the program and track down the pass-key from headquarters and in
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attack where a cryptanalyst chooses a ciphertext and attempts to find a matching plaintext. This can be done with a decryption oracle (a machine that decrypts without exposing the key). This is also often performed on attacks versus public key encryption; it begins with a ciphertext and searches for matching publicly-posted plaintext data. Adaptive Chosen Plaintext and Adaptive Chosen Ciphertext Attacks In both adaptive attacks‚ a cryptanalyst chooses further plaintexts or ciphertexts (adapts
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