TAILIEUCHUNG - Module 25 Cryptography

Cryptography (or cryptology; from Greek κρυπτός, "hidden, secret"; and γράφειν, graphein, "writing", or -λογία, -logia, "study", respectively)[1] is the practice and study of techniques for secure communication in the presence of third parties (called adversaries).[2] More generally, it is about constructing and analyzing protocols that overcome the influence of adversaries | M c E H Certified Ethical Hocker Ethical Hacking and Countermeasures Version 6 Module XXV Cryptography IM c E H News Certified Ethical Hacker InformatioriWsek BUSINESS INNOVATION POWERED DYTECNNILISY Jihadists Get Encryption upgrade Until recently al-Qaida didn t pose much of a tine at online because it used outdated technology. Hating modern encn ption tools changes the equation By Thomas Claburn Inform ationWeek Jan. 25 2008 URL http story articlelD 20591829E Last week an Islamist Web site called Al-Ekhlas released updated encryption software to help keep secret communications from prying eyes. The site IS allegedly frequented by al-Qaida supporters. According to the Middle East Media Research Institute the first version of the software Mujahideen Secrets was released a year ago as the first Islamic computer program for secure exchange of information on the Internet. MEMRI says that the program includes the five best encryption algorithms and with symmetrical encryption keys 256 bit asymmetrical encryption keys 2048 bit and data compression tools . Reuters reports that the new version of the software Mujahideen Secrets 2 was developed by Al-Ekhlas in order to support the mujahideen holy war fighters in general and the al Qaeda-linked group Islamic State in Iraq in particular. The Al-Ekhlas Web site is hosted by Florida-based Noc4hosts. Calls and e-mail to the company were not returned. In an e-mail message Paul Henry VP of technology evangelism at Secure Computing said that until recently al-Qaida didn t pose a credible threat online because of its use of outdated technology. Having modem encryption tools he said changes the equation. Source http Copyright by Ec-Council EC-Council All Rights Reserved. Reproduction is Strictly Prohibited IM c EH Scenario Certified Ethical Hacker Larry was working on a high-end project. He was expecting a promotion for his good performance. But he was disappointed .

• An ninh - Bảo mật
• Cryptography
• cyberspace
• national security
• Wifi hack tool
• Gmail inbox
• system architecture
• network security protection
• key cryptography
• tài liệu key cryptography
• tìm hiểu key cryptography
• ứng dụng với key cryptography
• tài liệu về mật mã
• Lecture Cryptography and network security
• Cryptography and network security
• Mathematics of Cryptography
• Algebraic Structures
• Cryptography requires
• Cryptography & Network Security
• Cryptography & Network Security Exercise
• Java Cryptography Architecture
• Understand the JCE
• ava Cryptography Extension
• Java Crypto API’s
• Review Cryptography & Network Security
• Basics of Cryptography
• Network Security Applications
• System Security
• Security service
• Cryptography engineering
• The context of cryptography
• Introduction to cryptography
• Block ciphers
• Block cipher modes
• Hash functions
• Message authentication codes
• Introduction to modern cryptography
• Modern cryptography
• Classical cryptography
• Perfectly secret encryption
• Practical constructions
• Cryptography theory and practice
• Cryptography theory
• Bit generation in cryptography
• Key establishment including
• Key distribution
• Modular Arithmetic
• Integer arithmetic
• Integer Division
• Congruence Equations
• Cardinality of Primes
• Generating Primes
• Symmetric Key Cryptography
• Knapsack Cryptosystem
• Trapdoor One Way Function
• Security of the Rabin System
• Midterm Review Cryptography & Network Security
• OSI Security Architecture
• Security Attack
• Security mechanism
• Network Security
• Principles Cryptography
• Practice Cryptography
• William Stallings
• An ninh mạng
• Bảo mật mạng
• Authentication protocols
• The real world
• Public key cryptography
• Strong security definiti
• Network Security Fundamentals
• Guide to Network Security Fundamentals
• Information security
• Scrambling through cryptography
• Cryptography hashing algorithms
• Symmetric encryption algorithms
• Introduction data Security
• Stream Ciphers
• The Advanced Encryption Standard
• Internal Structure of AES
• Introduction to Public Key Cryptography
• The RSA Cryptosystem
• An Introduction to Cryptography
• Second Edition
• Mathematical Basics
• Cryptographic Basics
• Primality Testing
• Cryptographic hardness assumptions
• Computing discrete logarithms
• The public key revolution
• Digital signature schemes
• Methods of public key cryptography
• Diffie hellman key exchange
• Elgamal protocol
• Rsa cryptosystem
• Elliptic and hyperelliptic curve cryptography
• Hyperelliptic curve cryptography
• Cohomological background on point counting
• Background on pairings
• Background on weil descent
• Attacks Threatening Availability
• Denial of service
• Security Services
• Traditional Symmetric Key Ciphers
• Kerckhoff’s Principle
• Polyalphabetic Ciphers
• Monoalphabetic Ciphers
• Symmetric key Ciphers
• Modern block cipher
• Feistel Ciphers
• Data Encryption Standard
• Encryption process
• General structure of DES
• Reverse Cipher
• Advanced Encryption Standard
• Structure of Each Round
• Key Expansion Analysis
• Modern Symmetric Key Ciphers
• Electronic Codebook
• Cipher Block Chaining
• Cipher Feedback