While some wireless networks are meant for open access by anyone who wishes to use them, most wireless networks limit access to authorized users. There are three primary mechanisms to authenticate the users of a wireless network: preshared keys, enterprise authentication, and captive portals. In this video, learn how to secure wireless networks, including the use of preshared keys and enterprise authentication, EAP, PEAP, and LEAP authentication and captive portals.
- [Narrator] While some wireless networks are meant…for open access by anyone who wishes to use them,…most wireless networks limit access to authorized users.…There are three primary mechanisms…to authenticate the users of a wireless network:…preshared keys, enterprise authentication,…and captive portals.…Preshared keys are the simplest kind…of wireless authentication,…and are commonly used on home wifi networks.…In the preshared key approach,…the network uses a 256-bit encryption key to control access.…
Whenever a user wishes to connect a device to the network,…he or she must enter the preshared key on the device.…The preshared key may be entered directly,…as a 64 character hexadecimal string,…but that's a pretty unwieldy approach.…Instead, most networks use preshared keys…that ask users to enter a password consisting…of between eight and 13 ASCII characters.…The network then uses the PBKDF2 key stretching function…to convert that ASCII password…into a 256-bit network encryption key.…
Pre-shared keys work fine,…
To join one of Mike's free study groups for access to bonus tips and practice questions, visit certmike.com.
- TCP/IP networking
- Network security devices
- Switches and routers
- Content distribution networks
- Storage networks
- Securing networks
- Network attacks
- Wireless networking and security
Skill Level Intermediate
Q: This course was updated on 07/27/2018. What changed?
A: New videos were added that cover network relationships and security device placement.
Insights from a Cybersecurity Professionalwith Mike Chapple32m 15s Intermediate
Networks and communications1m 31s
1. TCP/IP Networking
2. Network Security Devices
3. Designing Secure Networks
4. Specialized Networking
5. Secure Network Management
6. Network Attacks
7. Wireless Networking
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