logging in or signing up Wireless Security KJFREY Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 182 Category: Science & Tech.. License: All Rights Reserved Like it (0) Dislike it (0) Added: May 17, 2011 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Wireless Security: Wireless Security By James Doren and Kelley FreyService Set ID (SSID): Service Set ID (SSID) Does Not Provide Much Security For Your Network!!!SSID (Continued): SSID (Continued) Makes your network a little more private— However, any experienced hacker can work around this with ease!!MAC Address : MAC Address Media Access Control Address- unique identifier assigned to network interfaces for communications on the physical network segmentIEEE 802 MAC-48: Addressing Scheme: IEEE 802 MAC-48: Addressing SchemeIEEE MAC-48: Addressing Scheme (Continued): IEEE MAC-48: Addressing Scheme (Continued) 48-Bit Address Space contains 2^48 th power possible MAC Addresses That’s 281,474,976,710,656!!!!! (Expected to be available for the next 100 years) Hexadecimal Multiplication ChartAddress Resolution Protocol (ARP): Address Resolution Protocol (ARP)ARP (Continued): ARP (Continued) ARP packetARP: Example: ARP: Example802.11x: Authentication/Authorization: 802.11x: Authentication/Authorization 4 Steps in the Authentication Process: Initialization Initiation Negotiation Authentication802.11x: Authentication/Authorization: 802.11x: Authentication/AuthorizationEncryption: Encryption WEP WPAWEP (Wired Equivalent Privacy): WEP (Wired Equivalent Privacy)WEP: WEP WPAWPA (Wi-Fi Protected Access): WPA (Wi-Fi Protected Access) -All computers, access points and wireless adapters must have WPA software In Pre-Shared Key mode, a passphrase is used for authentication and a single master key is used for all users. Two Modes Pre-Shared Key EnterpriseEnterprise Mode: Enterprise ModeTKIP (Temporary Key Integrity Protocol): TKIP (Temporary Key Integrity Protocol) Scrambles keys to avoid attacks Changes temporal keys every 10,000 packets RC4 streaming cipher (same one used in WEP) 48-bit Initialization Vector Uses MIC or Message Integrity CodeThank You!: Thank You! You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
Wireless Security KJFREY Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 182 Category: Science & Tech.. License: All Rights Reserved Like it (0) Dislike it (0) Added: May 17, 2011 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Wireless Security: Wireless Security By James Doren and Kelley FreyService Set ID (SSID): Service Set ID (SSID) Does Not Provide Much Security For Your Network!!!SSID (Continued): SSID (Continued) Makes your network a little more private— However, any experienced hacker can work around this with ease!!MAC Address : MAC Address Media Access Control Address- unique identifier assigned to network interfaces for communications on the physical network segmentIEEE 802 MAC-48: Addressing Scheme: IEEE 802 MAC-48: Addressing SchemeIEEE MAC-48: Addressing Scheme (Continued): IEEE MAC-48: Addressing Scheme (Continued) 48-Bit Address Space contains 2^48 th power possible MAC Addresses That’s 281,474,976,710,656!!!!! (Expected to be available for the next 100 years) Hexadecimal Multiplication ChartAddress Resolution Protocol (ARP): Address Resolution Protocol (ARP)ARP (Continued): ARP (Continued) ARP packetARP: Example: ARP: Example802.11x: Authentication/Authorization: 802.11x: Authentication/Authorization 4 Steps in the Authentication Process: Initialization Initiation Negotiation Authentication802.11x: Authentication/Authorization: 802.11x: Authentication/AuthorizationEncryption: Encryption WEP WPAWEP (Wired Equivalent Privacy): WEP (Wired Equivalent Privacy)WEP: WEP WPAWPA (Wi-Fi Protected Access): WPA (Wi-Fi Protected Access) -All computers, access points and wireless adapters must have WPA software In Pre-Shared Key mode, a passphrase is used for authentication and a single master key is used for all users. Two Modes Pre-Shared Key EnterpriseEnterprise Mode: Enterprise ModeTKIP (Temporary Key Integrity Protocol): TKIP (Temporary Key Integrity Protocol) Scrambles keys to avoid attacks Changes temporal keys every 10,000 packets RC4 streaming cipher (same one used in WEP) 48-bit Initialization Vector Uses MIC or Message Integrity CodeThank You!: Thank You!