• AAA: Authentication, Authorization and Accounting
• ACE: Adaptive Communication Environment
• ACK: Acknowledgment
• ADSL: Asynchronous Digital Subscriber Line
• AES: Advanced Encryption Standard
• AH: Authentication Header
• AMPS: Advanced Mobile Phone System
• ASN.1: Abstract Syntax Notation One
• ASP: Application Service Provider
• BER: Basic Encoding Rules
• BSD: Berkeley Software Design
• BSS: Basic Service Set
• CBC-CTR: Cipher Block Chaining Counter Mode
• CBC: Cipher Block Chaining
• CCM(P): Cipher block chaining Counter Mode Protocol
• CDMA: Code Division Multiple Access
• CER: Canonical Encoding Rules
• CERT: Computer Emergency Response Team
• CHAP: Challenge Handshake Authentication Protocol
• CIPE: Crypto IP Encapsulation
• CPU: Central Processing Unit
• CRC: Cyclic Redundancy Check
• CSLIP: Compressed Serial Line Internet Protocol
• CVS: Concurrent Versions System
• DBM: Database Manager
• DES: Data Encryption Standard
• DHCP: Dynamic Host Configuration Protocol
• DMZ: Demilitarized Zone
• DNAT: Destination Network Address Translation
• DNS: Domain Name System
• EAP: Extensible Authentication Protocol
• EDGE: Enhanced Data rates for GSM Evolution
• ESP: Encapsulating Security Payload
• ESS: Extended Service Set
• ETACS: Extended TACS
• FTP: File Transfer Protocol
• GBIA: Global Broadband Internet Access
• GIF: Graphics Interchange Format
• GNU: GNU's Not Unix
• GPL: GNU General Public License
• GPRS: General Packet Radio Service
• GRE: Generic Routing Encapsulation
• GSM: originally Group Speciale Mobile, now Global System for Mobile communications
• GUI: Graphical User Interface
• HAM: The meaning of this acronym is not known, but it relates to amateur radio. See [Vigyan1]
for more information.
• HMAC: Hashed Message Authentication Code
• HTML: Hypertext Modeling Language
• HTTP: Hypertext Transfer Protocol
• IBSS: Independent Basic Service Set
• ICE: Inter City Express
• ICMP: Internet Control Message Protocol
• ICT: Information and Communication Technology
• IETF: Internet Engineering Task Force
• IPSEC: IP Security
• ISDN: Integrated Services Digital Network
• ISO: International Organization for Standardization, the name ISO is actually the Greek word
iso which means equal. • ISP: Internet Service Provider
• ITU: International Telecommunications Union
• KCK: Key Confirmation Key
• KEK: Key Encryption Key
• KPN: Koninklijke PTT Nederland
• L2F: Layer 2 Forwarding
• L2TP: Layer 2 Tunneling Protocol
• LAN: Local Area Network
• LDAP: Lightweight Directory Access Protocol
• LEAP: Lightweight Extensible Authentication Protocol
• MAC: Message Authentication Code (in the field of cryptography) or Medium Access Control
(in the field of networking) • MAP: Master Access Point
• MD5: Message Digest version 5
• MIB: Management Information Base
• MIC: Message Integrity Check
• MIMO: Multiple-In Multiple-Out
• MMS: Multimedia Messaging Service
• MNO: Mobile Network Operator
• MPPE: Microsoft Point-to-Point Encryption
• MRTG: Multi Router Traffic Grapher
• MSCHAP: Microsoft Challenge Handshake Authentication Protocol
• MULTICS: Multiplexed Information and Computing Service
• N-AMPS: Narrow band AMPS
• NAS: Network Attached Storage
• NAT: Network Address Translation
• NLIP: Nederlandse Internet Providers
• NMT: Nordic Mobile Telephone system
• NOC: Network Operations Center
• OSI: Open System Interconnect
• OSS: Open Source Software
• P2P: Peer-to-Peer
• PAE: Port Access Entity
• PAM: Pluggable Authentication Modules
• PAP: PPP Authentication Protocol
• PCI: Peripheral Component Interconnect
• PCMCIA: Personal Computer Memory Card International Association
• PDA: Personal Digital Assistant
• PDF: Portable Document Format
• PDU: Protocol Data Unit
• PEAP: Protected Extensible Authentication Protocol
• PER: Packed Encoding Rules
• PHP4: PHP: Hypertext Preprocessor, version 4
• PHP: PHP: Hypertext Preprocessor
• PKI: Public Key Infrastructure
• PMK: Pairwise Master Key
• PNG: Portable Network Graphics
• POSIX: Portable Operating System Interface
• PPP: Point-to-Point Protocol
• PPTP: Point-to-Point Tunneling Protocol
• PTK: Pairwise Transient Key
• RAD: Requirements Analysis Document
• RAM: Random Access Memory
• RC4: Rivest Cipher 4
• RFC: Request-For-Comments
• RRD: Round Robin Database (database that stores information without expanding over time, by
overwriting old information; ie for use with MRTG) • RSA: Rivest, Shamir and Adleman
• RSN: Robust Secure Network
• SAD: Security Association Database
• SAP: Slave Access Point
• SHA1: Secure Hash Algorithm version 1
• SMS: Short Message Service
• SMTP: Simple Mail Transfer Protocol
• SNAT: Source Network Address Translation
• SNMP: Simple Network Management Protocol
• SOCKS5: Proxy protocol SOCK-et-S version 5
• SPI: Security Parameter Index
• SQL: Structured Query Language
• SSH: Secure Shell
• SSID: Service Set Identifier
• SSL: Secure Socket Layer
• TACACS+: Enhanced incompatible version of TACACS
• TACACS: Terminal Access Controller Access Control System
• TACS: Total Access Communications System
• TCP: Transmission Control Protocol
• TDMA: Time Division Multiple Access
• TGV: Train a Grande Vitesse, English: high speed train
• TKIP: Temporary Key Integrity Protocol
• TLS: Transport Layer Security
• TSN: Transition Security Network
• TTL: Time-To-Live
• TTLS: Tunneled TLS
• UDP: User Datagram Protocol
• UML: Unified Modeling Language
• UMTS: Universal Mobile Telecommunications System
• UNIX: originally UNICS, meaning Uniplexed Information and Computing System, later
changed to UNIX. It was a pun on an experimental operating system in the 60s called Multics. • USB: Universal Serial Bus
• UTP: Unshielded Twisted Pair
• UWB: Ultra Wide Band
• VPN: Virtual Private Network
• WAN: Wide Area Network
• WAP: Wireless Application Protocol
• WBA: Wireless Broadband Alliance
• WBAN: Wireless Body Area Network
• WDS: Wireless Distribution System
• WEP: Wired Equivalent Privacy
• WISP: Wireless Internet Service Provider
• WLAN: Wireless Local Area Network
• WPA2: version 2 of WPA
• WPA: Wi-Fi Protected Access
• WPAN: Wireless Personal Area Network
• WWW: World Wide Web
• XER: XML Encoding Rules
• XML: eXtensible Modeling Language