From the course: Ethical Hacking: Cryptography
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Why encrypt your filesystem?
From the course: Ethical Hacking: Cryptography
Why encrypt your filesystem?
- [Instructor] Disk encryption is another very powerful application of cryptography. The idea here is cryptography's not used for communication per se, but rather to encrypt data that is at rest on some type of media. So whether it's a CD, a DVD, a USB, the disk inside of your computer, when data is written to disk, when data is stored, it is encrypted prior to being stored. This helps provide confidentiality of that data. If somebody were to steal a CD, get a hold of your USB stick, steal your laptop from your car, they'd be unable to decrypt the information on that without the key. Windows has a built-in encryption utility called Encrypted File System, also known as EFS, that supports this concept of just enforcing encrypted data at rest, and it's an easy way because it builds into the Windows operating system to provide an extra layer of protection on data at rest.
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