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Key Terms

Review the following list of key terms:

  • asymmetric encryption— Encryption that uses different keys for encryption and decryption.

  • certificate authority (CA)— A central authority that oversees the certificate creation and delivery process.

  • digital certificate— An encrypted data structure used to distribute a public key.

  • digital signature— An encrypted string used to verify the identity of the sender and the integrity of the data.

  • encryption— The process of systematically altering data to make it unreadable to unauthorized users.

  • encryption algorithm— A mathematical formula or procedure used to encrypt data.

  • encryption key— A value (usually kept secret) used with the encryption algorithm to encrypt or decrypt data.

  • IPSec (IP Security)— A security protocol system consisting of extensions to the IP protocol.

  • KDC (Key Distribution Center)— A server that manages the key distribution process on Kerberos networks.

  • Kerberos— A network authentication system designed for secure access to services over hostile networks.

  • private key— A key used in asymmetric encryption that is kept secret and not distributed on the network.

  • public key— A key used in asymmetric encryption that is distributed over the network.

  • SSL (Secure Sockets Layer)— A security protocol system originally developed by Netscape that operates above the TCP protocol.

  • symmetric encryption— Encryption for which the encryption key and the decryption key are the same.

  • X.509— A standard that describes the digital certificate process and format.

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