A
Abstract syntax notation one, 191
Accept-language header, 24
Access control, 14 “15, 26 “28
Active server page, 22, 300, 310, 312 “13
Address information restriction, 27 “28
Adobe Acrobat Reader, 273
Advanced encryption standard, 96, 136
Aggressive mode exchange, 140
American National Standards Committee, 242
Anomaly detection, 381 “82
Anonymizing HTTP proxy server, 329 “30, 337 “38
Anonymous browsing, 328 “36
Anonymous communication, 320 “21, 334 “35
Anonymous electronic cash system, 257, 320
Anonymous publishing, 336 “41
Anonymous remailer, 321 “23
Apache server, 42, 170, 302, 309, 312
Apache server application programming interface, 299
AP exchange, 235, 237 “38
Application gateway, 52, 64 “68, 76, 77
Application-layer security, 143 “46
Application-level blocking, 363 “65
Application-level gateway, 64 “68, 77, 293, 361, 363
Application programming interface, 22, 142, 239, 299
Asymmetric cryptography. See Public key cryptography
Attack signature recognition, 381
Attribute authority, 186, 196, 243
Attribute certificate, 186, 242 “44
Authenticated Firewall Traversal Working Group, 61
Authentication and authorization infrastructure, 145, 213 “16
Kerberos-based, 34, 231 “41
PKI-based, 241 “44
Authentication and key distribution system, 144 “45, 215 “16
Authentication exchange, 15, 140
Authentication header, 128, 131 “35
Authentication server, 233 “35, 240
Authentication server exchange, 235
Authentication service, 14
Authenticode, 282, 286 “87
Authorization header, 31, 38