- h/w, HW
- Hardware
- HACI
- High Assurance Controlled Interface
- HAIPE
- High Assurance Internet Protocol Encryptor
- HAIPE IS
- High Assurance Internet Protocol Encryptor Interoperability Specification
- HAIPIS
- High Assurance IP Interoperability Specification
- HAP
- High Assurance Platform
- HASP
- High Assurance Security Processor
- HC3
- High Capacity Communications Capability
- HDR
- Header
- HF
- High Frequency
- HME
- Hybrid Multilevel Environment
- HMI
- Human Machine Interface
- HMS
- Handheld, Manpack and Small Form Fit
- HP
- Hewlett Packard
- HSM
- Hardware Security Module
- HSRP
- Hot Standby Router Protocol
- Hv1
- HAIPE IS version 1
- Hv2
- HAIPE IS version 2
- Hv3
- HAIPE IS version 3
- HW
- Hardware
- Hz
- Hertz
- I&A
- Identification and Authentication
- I/O
- Input/Output
- IA
- Information Assurance
- IAM
- INFOSEC Assessment Methodology
- ICMP
- Internet Control Message Protocol
- ICMPV6
- Internet Control Message Protocol Version 6
- ICS
- InterCommunication System
- IDE
- Integrated Disk Electronics
- IEEE
- Institute for Electrical and Electronics Engineers
- IETF
- Internet Engineering Task Force
- IETF RFC
- Internet Engineering Task Force Request For Comment - The IETF sets the standards for the internet. IETF standard is published as a Request for Comment (RFC) see www.IETF.org
- IFDL
- Inter-Flight Data Link
- IGMP
- Internet Group Management Protocol
- IHL
- Internet Header Length
- IKE
- Internet Key Exchange
- ILMI
- Interim Local Management Interface
- IME
- Inline Media Encryptor or In-Line Media Encryptor
- INE
- In-Line Network Encryptor
- Internet Key Exchange (IKE)
- A key management protocol standard that is used in conjunction with the IPSec standard. IKE enhances IPSec by providing additional features, flexibility and ease of configuration for the IPSec standard.
- IOS
- Internetwork Operating System
- IP
- Internet Protocol
- IPSEC
- Internet Protocol Security
- IPv4
- Internet Protocol version 4
- IPv6
- Internet Protocol version 6
- IS
- Interface Switch
- ISCSI
- Internet Small Computer System Interface
- ISDN
- Integrated Services Digital Network
- ISO
- International Standards Organization
- ISSEP
- Information Systems Security Engineering Professionals
- ITB
- Interoperability Test Bed
- ITU-T
- International Telecommunication Union Telecommunication Standardization Sector
- JEFX
- Joint Expeditionary Force Experiment
- JEM
- JTRS Enhanced MBITR
- JITC
- Joint Interoperablility Test Command
- Joint Tactical Radio System (JTRS)
- The Joint Tactical Radio System is a DoD initiative. JTRS is designed to provide a flexible new approach to meet diverse warfighter communications needs through software programmable radio technology.
- JSF
- Joint Strike Fighter
- JTAG
- Joint Test Action Group
- JTRS
- Joint Tactical Radio System
- KDM
- Key Distribution Manager
- KEK
- Key Encryption Key
- KLIF
- Key Load and Initialization Facility
- KMI
- Key Management Infrastructure
- KMI-CI2
- Key Management Infrastructure Capability Increment 2
- KMID
- Key Material Identity
- KMM
- Key Management Module
- KMP
- Key Management Protocol
- KMUA
- Key Management User Agent
- KOA
- KMI Operating Account
- KP
- Key Processor
- KSD
- Key Storage Device
- LAN
- Local Area Network
- lbs
- pounds
- LCD
- Liquid Crystal Display
- LCMS
- Local COMSEC Management Software
- LED
- Light Emitting Diode
- LEF
- Link Encryptor Family
- LEO
- Low Earth Orbit
- LLQ
- Low Latency Queuing
- LMD
- Local Management Device
- LMD/KP
- Local Management Device/Key Processor
- LMPS
- Local Maintenance Product Server
- LOS
- Loss of Service
- LPD
- Low Probability of Detection
- LRIP
- Low Rate Initial Production
- LSP
- Label Switch Paths
- LUN
- Logical Unit Number
- MAC
- Media Access Control
- MADL
- Multifunction Advanced Data Link
- MANET
- Mobile Ad hoc Networking Environment
- MANET (Mobile Ad Hoc Network)
- An autonomous system of mobile routers (and associated hosts) connected by wireless links - the union of which form an arbitrary graph.
- MAU
- Medium Attachment Unit
- Mb/s or Mbps
- Megabits per second
- MCEP
- Multi Carrier Entry Point
- ME
- Mobile Equipment
- MEK
- Media Encryption Key
- MELP
- Mixed Excitation Linear Prediction
- MELPe
- Mixed Excitation Linear Prediction - is a United States Department of Defense speech coding standard used mainly in military applications and satellite communications, secure voice, and secure radio devices. "e" is the version.
- MGC
- Management Client
- MIB
- Management Information Base
- MILS
- Multiple Independent Levels of Security
- MILSATCOM
- Military Satellite Communication
- MISSI
- Multilevel Information System Security Initiative
- MIST
- Modular Interoperable Surface Terminal
- MLE
- Multilevel Enterprise
- MLS
- Multilevel Security
- mm
- millimeter
- MNIS
- Multi-National Information Sharing
- MOA
- Memorandum of Agreement
- MPG
- Media Protocol Gateway
- MPLS
- Multiprotocol Label Switching
- Ms
- millisecond
- MSE
- Mobile Subscriber Equipment
- MSLS
- Multiple Single Levels of Security
- MTBF
- Mean Time Between Failure
- MTU
- Maximum Transmission Unit
- MUOS
- Mobile User Objective System
- MUX
- Multiplex