After completing this video, the learner will understand approaches to wireless authentication, including the use of preshared keys and enterprise authentication, EAP, PEAP and LEAP authentication and captive portals.
- [Voiceover] 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 Wi-Fi networks.…In the preshared key approach,…the network uses a 256-bit encryption key to control access.…
Whenever a user wishes to connect the 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 8 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.…
I discussed the PBKDF2 function in…
This course is part of a six-course series on the CompTIA Security+ exam, and is useful for IT professionals who wish to learn more about information security as well as students preparing to take the Security+ exam.
We are now a CompTIA Content Publishing Partner. As such, we are able to offer CompTIA exam vouchers at a 10% discount. For more information on how to obtain this discount, please download these PDF instructions.
- Choosing encryption algorithms
- Applying symmetric and asymmetric cryptography standards
- Implementing key management, including key exchange and key stretching
- Working with public keys, trust models, and digital certificates
- Using transport encryption protocols
- Securing wireless networks
Skill Level Intermediate
IT Security Foundations: Core Conceptswith Lisa Bock1h 13m Beginner
2. Symmetric Cryptography
3. Asymmetric Cryptography
4. Key Management
5. Public Key Infrastructure
6. Transport Encryption
7. Wireless Security
Next steps1m 5s
- Mark as unwatched
- Mark all as unwatched
Are you sure you want to mark all the videos in this course as unwatched?
This will not affect your course history, your reports, or your certificates of completion for this course.Cancel
Take notes with your new membership!
Type in the entry box, then click Enter to save your note.
1:30Press on any video thumbnail to jump immediately to the timecode shown.
Notes are saved with you account but can also be exported as plain text, MS Word, PDF, Google Doc, or Evernote.