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Glossary of Terms
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.. glossary::
  :sorted:

  3DES
    Triple Data Encryption Standard

  AES
    Advanced Encryption Standard

  AH
    Authentication Header
  
  CA
    Certificate Authority
   
  CSR
    Certificate Siging Request

  DES
    Data Encryption Standard

  DH
    Diffie-Helman Protocol
  
  DoS
    Denial of Service
  
  DTLS
    Datagram Transport Layer Security

  ECC
    Eliptic Curve Cryptography

  ESP
    Encapsulated Securely Payload

  DMVPN
    Dynamic Multipoint VPN
  
  GetVPN
    Group Encrypted Transport VPN

  GDOI
    Group Domain of Intepretation (GetVPN)

  ICV
    Integrity Check Value

  IKE
    Internet Key Exchange

  IP
    Internet Protocol
  
  IPSec
    IP Security

  ISAKMP
    Internet Security Association Key Management Protocol
  
  L2TP
    Layer 2 Tunnelling Protocol

  PKI
    Public Key Infrastructure

  PPTP
    Point-To-Point Tunnelling Protocol

  RSA
    Named after the original creators (Rivest, Shamir, Adleman) of the encryption algorithm 
    used with PKI

  SA
    Security Association

  SAD
    Security Association Database
  
  SCEP
    Simple Certificate Enrollment Protocol

  SHA1
    Secure Hashing Algorithm Version 1

  SHA2
    Secure Hashing Algorithm Version 2

  SPI
    Security Parameter Index

  SPD
    Security Policy Database

  TTL
    Time To Live

  MD5
    Message Digest Version 5

  NAT
    Network Address Translation

  NAT-T
    Network Address Translation Traversal

  NTP
    Network Time Protocol

  MPLS
    Multi-protocol Label Switching

  SSL
    Secure Socket Layer

  SSTP
    Secure Socket Tunnelling Protocol
  
  TLS
    Transport Layer Security

  UDP
    User Datagram Protocol

  VoIP
    Voice Over IP
  
  VPN
    Virtual Private Network