Glossary
3DES Triple DES, a 168-bit (3 x 56-bit encryption process). DES, or Data Encryption Standard, is a symmetric key encryption algorithm using a block-cipher method.
AAA Authentication, authorization, and accounting.
AAA server The server/host responsible for running RADIUS or TACACS services.
ACS Access Control Server, the RADIUS and TACACS system sold by Cisco.
AES Advanced Encryption Standard, is a symmetric key encryption algorithm using a block-cipher method developed by Joan Daemen and Vincent Rijmen. Available in key sizes of 128-bit, 192-bit, or 256-bit,
amplification attack A method of attack that starts with relatively few packets and amplifies its responses (like Smurf or Fraggle attacks).
AnyConnect Cisco’s secure mobility client ...
Get CCNA Security 640-554 Official Cert Guide now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
