Key management facility
KMM
Key management message
KSG
Key stream generator
KSK
Key signing key
KWK
Key wrapping key
L
LAN
Local-area network
LAPB
Link access procedure B
LCD
Liquid crystal display
LCP
Link control protocol
LDA
Local delivery agent
LDAP
Lightweight directory access protocol
LM
LanManager
LMDS
Local multipoint distribution service
LMP
Link manager protocol
LOS
Line-of-sight
LRA
Local registration authority
L2TP
Layer 2 tunneling protocol
LTP
Lightweight transport protocol
M
MAC
Mandatory Access Control/Media Access Control/Medium Access Control/ message authentication code
MAN
Metropolitan area network
MBR
Master boot record
MC
Mobile commerce
MD
Message digest
MGCP
Media gateway control protocol
MHS
Message handling system
MIC
Message integrity check/message integrity code/mandatory integrity control
MIDI
Musical instrument digital interface
MIM
Meet-in-the-middle (attack)
MIME
Multipurpose Internet mail extensions
MIN
Mobile identification number
MIP
Mobile Internet protocol
MitM
Man-in-the-middle (attack)
MIPS
Million instructions per second
MMS
Multimedia messaging service
MM
Management message
MOA
Memorandum of agreement
MOU
Memorandum of understanding
MPEG
Moving picture coding experts group
MS
Mobile subscriber
MSI
Module software interface
MSISDN
Mobile subscriber integrated services digital network
MSP
Message security protocol
MTBF
Mean-time-between-failures
MTBO
Mean-time-between-outages
MTD
Maximum tolerable downtime
MTM
Mobile trusted module
MTTDL
Mean-time-to-data loss
MTTF
Mean-time-to-failure
MTTR
Mean-time-to-recovery
Mean-time-to-repair
Mean-time-to-restore
N
NAC
Network Access Control
NAK
Negative acknowledgment
NAP
Network Access Protection
NAPT
Network address and port translation
NAS
Network access server
NAT
Network Address Translation
NBA
Network behavior analysis
NCP
Network Control Protocol
NDAC
Nondiscretionary access control
NetBIOS
Network Basic Input/Output System
NFAT
Network Forensic Analysis Tool
NFS
Network file system/network file sharing
NH
Next header
NIAC
National infrastructure advisory council
NIAP
National information assurance partnership
NIC
Network interface card
NID
Network interface device
NIPC
National infrastructure protection center
NIS
Network information system
NIST
National Institute of Standards and Technology
NISTIR
National Institute of Standards and Technology Interagency Report
NLOS
Nonline-of-sight (non LOS)
NNTP
Network News Transfer Protocol
NS
Name server
NSA
National Security Agency
NTFS
NT file system
NTLM
NT LanManager
NTP
Network Time Protocol
NVD
National Vulnerability Database
NVLAP
National Voluntary Laboratory Accreditation Program
O
OASIS
Organization for the Advancement of Structured Information Standards
OCSP
Online Certificate Status Protocol
OECD
Organization for Economic Co-operation and Development
OFB
Output feedback (mode)
OLE
Object linking and embedding
OOD
Object-oriented design
OOP
Object-oriented programming
ONS
Object naming service
OOB
Out-of-band
OpenPGP
Open Specification for Pretty Good Privacy
OS
Operating system
OSE
Open system environment
OSI
Open system interconnection
OSPF
Open shortest path first
OSS
Open-source software
OTAR
Over-the-air rekeying
OTP
One-time password
OVAL
Open vulnerability and assessment language
P
P2P
Peer-to-peer
P3P
Platform for privacy preferences project
PAC
Protected access credential/privilege attribute certificate
PAD
Packet assembly and disassembly/peer authorization database
PAN
Personal-Area Network
PAP
Password authentication protocol/policy access point
PAT
Port address translation
PATA
Parallel ATA (advanced technology attachment)
PBA
Pre-boot authentication
PBAC
Policy-Based Access Control
PBE
Pre-boot environment
PBX
Private branch exchange
PC
Personal computer
PCI
Payment card industry/personal identity verification card issuer
PCIDSS
Payment card industry data security standard
PCMCIA
Personal computer memory card international association
PCN
Process control network
PCP
IP payload compression protocol
PCS