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IT Fundamentals - Chapter 33 Flashcards _ Quizlet.pdf
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Science Computer Science Computer Security and Reliability
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Encryption The process of encoding data by changing the information so that it can only be understood by authorized parties.
Plain text Messages and data before being encrypted into cipher text.
Cipher text Data that has been encrypted using a mathematical algorithm. The receiver of the encrypted text must have a decryption key to convert the data back to its original form.
Data at rest Data that is being stored on a device. Encryption can take place on a file level, a disk level or in a mobile device.
FileVault 2 Full disk encryption built in to macOS that is enabled through the System Preferences, Security & Privacy dialog box.
Mobile device encryption Full device encryption automatically enabled by simply using an Android PIN or iOS passcode to secure the device.
S/MIME Technology standard included in most email systems to secure e-mail by providing confidentiality, integrity, authentication, and non- repudiation. It can digitally sign and encrypt e-mail messages.
Data in transit Data when it is traveling between devices. To protect data while it is being sent and received, data needs to be encrypted by the sender and decrypted by the recipient.
Open PGP Cross-platform and most widely used email encryption standard based on the original PGP program. It works by exchanging digital certificates or public keys between users. After digital certificates are installed, users can exchange encrypted emails.
HTTPS (Hypertext Transfer Protocol Secure)
A secure, encrypted version of the HTTP protocol used for web pages. It uses TCP port 443 and web browsers display a padlock symbol to indicate that the website is secure.
