Эволюция безопасности Wi-Fi: WEP, WPA, WPA2 и WPA3 In the ever-evolving landscape of Wi-Fi technology, security protocols play a crucial role in protecting wireless networks from unauthorized access and cyber threats. From the early days of WEP to the latest advancements with WPA3, understanding the differences and enhancements in these protocols is vital for ensuring network security. This article delves into the details of WEP, WPA, WPA2, and WPA3, highlighting their key features, differences, and the evolution of Wi-Fi security standards. WEP: The Pioneer with Flaws Background Introduced: 1997 Standard: Part of the original IEEE 802.11 standard Technical Aspects Encryption: Utilizes RC4 stream cipher Security Flaws: Vulnerable to multiple attack vectors, including IV (Initialization Vector) attacks and brute force Current Status: Considered obsolete due to its weak security WPA: A Temporary Security Enhancement Введение Launched: 2003 Purpose: Developed to address WEP’s vulnerabilities Ключевая особенность Encryption Method: Employs Temporal Key Integrity Protocol (TKIP) and RC4 Security Level: More secure than WEP, but TKIP vulnerabilities were later identified Использование: Served as an interim solution before the advent of WPA2 WPA2: Establishing a New Standard Обзор Release Date: 2004 Significance: Became the most widely used Wi-Fi security protocol Безопасность и шифрование Core Encryption: Advanced Encryption Standard (AES) with Counter Mode Cipher Block Chaining Message Authentication Code Protocol (CCMP) Security Improvements: Significantly more secure than its predecessors, addressing many of their vulnerabilities Adoption and Usage Совместимость: Supported by most modern Wi-Fi devices Legacy Support: Backward compatibility with WPA WPA3: Advancing Wi-Fi Security Введение Announcement: 2018 Goal: To further enhance Wi-Fi security and address modern threats ЧИТАТЬ Устранение неполадок VPN: как исправить распространенные проблемыEnhancements and Features Encryption: Continues with AES, but with increased cryptographic strength Key Improvements: Protection against weak passwords, individualized data encryption New Protocols: Simultaneous Authentication of Equals (SAE), replacing WPA2’s Pre-Shared Key (PSK) and improving defense against offline dictionary attacks Compatibility and Adoption Requirement: Newer hardware needed for optimal performance Market Penetration: Gradual adoption due to hardware requirements Comparative Analysis: WEP, WPA, WPA2, and WPA3 Feature/ProtocolWEPWPAWPA2WPA3Введение1997200320042018ШифрованиеRC4TKIP and RC4AES with CCMPEnhanced AESУровень безопасностиVery LowУмеренныйВысокийОчень высокоKey Improvements–TKIPAES, CCMPSAE, Enhanced AESCurrent StatusObsoletePhased OutWidely UsedEmerging Заключение The evolution from WEP to WPA3 reflects the continuous advancements in technology and the corresponding need for stronger security measures in Wi-Fi networks. Each protocol has played a pivotal role in its time, with WPA3 currently representing the forefront of secure wireless networking. Understanding these protocols is essential for network administrators and users alike to ensure the highest level of security in their wireless networks. 31.12.23 Написано: Карл Дж. Джонс