Glossary of Terms

Skip to Main Content

Apply

Common Searches

Login

Glossary

Filter:

# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All

C

C Programmer's Disease*

C*

C1

C2

C3

C3I

C4

C4 Systems Security Vulnerability Reporting Program

CA

Cache

Call

Call Forwarding

Call Identifier

Call Processing

Call Set-Up Time

Call Sign Cipher

Call-Back Security#

Called-Party Camp-On

Calling-Party Camp-On

Callsign Cipher

CAMA

Camp-On

Can

Cancel Character

Capability-Based

Capability-Based System

Carder

Careless Employees

Cargo Cult Programming

Carrier

Carrier Sense Multiple Access With Collision Detection (CSMA/CD)

Cascade

Casters-Up Mode

Cat

Categories Of Data

Caution Statement

Caveats

CBA

CBC

CCB

CCEP

CCI

CCIS

CCITT

CCO

CDR

CDRL

CDS

Cell

CELP

Central Computer Facility

Central Office Of

Central Office Of Record

Central Processing Unit

Central Processor

Central security management console

CEOI

CEPR

CERT

Certificate authority (CA)

Certificate Of Action

Certificate Of Action Statement

Certificate revocation list (CRL)

Certification And Accreditation Program

Certified TEMPEST

Certified Tempest Technical Authority

CERTs (Computer emergency response teams)

CF

CFD

CFE

CGI (Common Gateway Interface)

Chad

Chain

Chain of evidence

Challenge And Reply

Challenge And Reply Authentication

Challenge message

Challenge-response authentication

Change Control Policies

Change Controls

Change management process

Channel

Channel Hopping

CHANOP

CHAP (Challenge-Handshake Authentication Protocol)

Char

Character Check

Character Generator

Character Interval

Character Recognition

Character Stepped

Character-Count

Character-Count And Bit-Count Integrity

Charter of Fundamental Rights

Chawmp

Check

Check Character

Chernobyl Packet

Chiclet Keyboard

Chief security officer (CSO)

Children’s Online Privacy Protection Act

Chmod

Choke

Chomp

CHOP

Chown

Christmas Tree Packet

Chrome

Chroot

Chug

CI

CIA

CIAC

CIK

Cinderella Book

CIP

Cipher

Cipher Block Chaining (CBC)

Cipher Text Auto-Key

Ciphony

Circles of trust

Circuit

Circuit Breaker

Circuit firewall

Circuit-Switched Networks

CIRCULAR No. A-127

Circular No. A-130

CIRK

Civil Rights Act

CK

CKG

CKL

Clandestine Operation

Class

Class A1, Verified Design

Class B1, Labeled Security Protection

Class B3, Security Domains

Class C1, Discretionary Security Protection

Class C2, Controlled Access Protection

Class D, Minimal Protection

Classful addressing

Classification Guide

Classified Computer Security Program

Classified Data/information

Classified Defence Information

Classified Defense Information

Classified Information

Classified Materials Handling And Shipping

Classless InterDomain Routing (CIDR)

Clean

Clear

Clearance Level

Clearance Verification

Clearing ADP Media

Clearing Magnetic Media

Client firewall

Client/Server Security

CLIs (command-line interfaces)

CLMD

Clobber

Clock

Clocks

Clone

Closed Security

Closed Security Environment

Closed User Group

Closed User Group With Outgoing Access

Closed-circuit television (CCTV)

CM

CMCS

CMP

CMS

CN

CNCS

CNK

CNLZ

Coax

COBOL

Code

Code Conversion

Code inspection

Code Restriction

Code Vocabulary

CODEC

Coded Character Set

Code-Excited Linear Prediction

Code-Independent Data Communication

Coder

Codes

Cognizant Agent

Cognizant Security Authority

Collaborative Computing

Colours

Combinational Logic Element

COMINT

Comma-Free Code

Command

Command And Control

Command And Control System

Command Authority

Command Languages/interfaces

Command, Control And Communications

Command, Control, Communications, And Computer (C4) Systems

Command, Control, Communications, And Computer (C4) Systems Security

Command, Control, Communications, And Computer System

Command-line interface (CLI)

Commercial Carrier

Commercial COMSEC

Commercial COMSEC Endorsement Program

Commercial vulnerability testing tools

Common Carrier Security

Common Fill Device

Common Gateway Interface (CGI)

Common word passwords

Common-Channel Interoffice Signaling

Communication Deception

Communications Assistance for Law Enforcement Act

Communications Center

Communications Center Security

Communications Channel

Communications Cover

Communications Deception

Communications Devices

Communications Intelligence

Communications Profile

Communications Security

Communications Security (COMSEC)

Communications Security Equipment

Communications Security Material

Communications Security Policy And Guidance

Communications Security Survey

Communications System

Communications Systems Abuse

Community Of Interest

COMP

Compact

Companion Document Series

Compartment "S" Variable

Compartmentalization

Compartmentation

Compartmented Information

Compartmented Intelligence/sensitive Compartmented Information (SCI)

Compartmented Mode

Compartmented Security Mode

Compartmented/partitioned Mode

Compelled Signaling

Competent Authority

Compile

Compiling Program

Compliance Review

Comprehensive security

Compromising Emanation Performance Requirement

Compromising Emanations

Compulsory tunneling

Computer and Internet use policy

Computer Conferencing

Computer Confetti

Computer Cryptography

Computer Emergency Response Team

Computer Emergency Response Team/Coordination Center (CERT/CC)

Computer emergency response teams (CERTs)

Computer Facility

Computer Fraud And Abuse Act

Computer Fraud and Abuse Act of 1986

Computer Graphics 1. Methods and techniques for converting data to or from graphic displays via co

Computer Installation

Computer Language

Computer Management

Computer Matching

Computer Matching Responsibilities

Computer Network

Computer Program

Computer Program Origin

Computer Protection Plan

Computer Routine

Computer Science

Computer Science And Architecture

Computer Security

Computer Security Act

Computer Security Act Of 1987 100-235

Computer Security Incident

Computer Security Law

Computer Security Officer

Computer Security Policy

Computer Security Subsystem

Computer Security Subsystem Interpretation

Computer Security Technical Vulnerability Reporting Program

Computer Security Technical Vulnerability Reporting Program (CSTVRP)

Computer System

Computer System Fault Tolerance

Computer System Manager

Computer System Resilience

Computer Systems Security Officer

Computer-based firewall

Computer-Dependent Language

Computer-Oriented Language

Computers At Risk

Computing System

COMSEC

COMSEC Account Audit

COMSEC Accounting

COMSEC Boundary

COMSEC Chip Set

COMSEC Control Program

COMSEC Crypto-Algorithm

COMSEC Custodian

COMSEC End Item

COMSEC Equipment

COMSEC Facility

COMSEC Incident

COMSEC Insecurity

COMSEC Material

COMSEC Material Control System

COMSEC Material Destruction Procedures

COMSEC Material Identification And Inventory

COMSEC Modification

COMSEC Monitoring

COMSEC No-Lone Zone

COMSEC Responsible Officer

COMSEC System Data

COMSEC Training

Concealment System

Conceptual Entity

Conducted Signals

Conduit

Confidential Source

Confidentiality

Configuration Control

Configuration Control Board

Configuration Management

Configuration Review Board

Confinement Channel

Confinement Property

Conformance Testing

CONJ

Connectionless Data Transfer

Connectionless Mode Transmission

Connection-oriented

Connector Conspiracy

Cons

Considered Harmful

Console

Content Vectoring Protocol (CVP)

Content-Addressable Storage

Context. User-Friendly

Contingency Key

Contingency Management

Contingency Plan

Contingency Plan Testing

Contingency Planning

Continuity Of Operations

Continuity Plan

Continuity Planning

Continuous Operation

Contracting For Security Services

Contractor Security Safeguards

Contracts, Agreements, And Other Obligations

Control Character

Control Function

Controllable Isolation

Controlled Access

Controlled Access Area

Controlled Access Protection

Controlled Accessibility

Controlled Area

Controlled BLACK Equipment Area(s) (CBEA)

Controlled COMSEC Item

Controlled Cryptographic Item

Controlled Cryptographic Item (CCI)

Controlled Cryptographic Item (CCI) Assembly

Controlled Cryptographic Item (CCI) Component

Controlled Cryptographic Item (CCI) Equipment

Controlled Information

Controlled Security Mode

Controlled Sharing

Controlled Space

Controlling Authority

Controlling Paperwork Burden On The Public

Conversational Mode

Conversational Service

Cookie

COOP

Cooperative Key

Cooperative Key Generation

Cooperative Remote

Cooperative Remote Rekeying

Coordination With Related Disciplines

Copper

Copy Protection

Copyright Protection And Licensing

COR

Core

Corporate security policy statement

Corrective Actions

Correctness Proof

Correlated Emanations

Cost

Cost Accounting

Cost Benefit Analysis

Cost Distribution

Cost Of Major Failures

Cost/Benefit Analysis

Cost/Time Contamination

Cost/Time Interruption

Cost-Benefit Analysis

Costing Function

Cost-Risk Analysis

COTS

Counterfeit Access Device And Computer Fraud Act

Counterintelligence

Countermeasures

Cover

Cover And Deception

Covert Channels

Covert Storage Channel

Covert Storage Channels

Covert Timing Channel

CP/M

CPC

CPCI

Cpi

CPS

CPU

Cracker

Crafted

Crank

Crash

Cray

Cray Instability

Crayola

CRB

CRC

Credit card number theft

Creep

Creeping Elegance

Creeping Featurism

Creeping Featuritis

CRIB

Criminal Prosecution

Critical Information

Critical Processing

Critical Resources

Critical Severity

Critical Systems

Critical Technology

CRL (Certificate revocation list)

CRLCMP

CRLF

CRO

Cross Assembler

CRP

Cruft

Crunch

CRWG

Cryppie

Crypto

Crypto-Algorithm

Crypto-Ancillary

Crypto-Ancillary Equipment

Crypto-Equipment

Cryptographic Authentication

Cryptographic Checkvalue

Cryptographic Component

Cryptographic Equipment

Cryptographic Information

Cryptographic Initialization

Cryptographic Key

Cryptographic Logic

Cryptographic Randomization

Cryptographic System

Cryptographic Techniques

Crypto-Ignition Key

Crypto-Operation

Cryptosynchronization

Cryptosystem Assessment

Cryptosystem Evaluation

Cryptosystem Review

Cryptosystem Survey

CSA

CSC

CSCI

CSC-STD-0030-85

CSE

CSETWG

CSIRTs

CSM

CSO

CSO (chief security officer)

CSPP

CSRD

CSS

CSSO

CSSP

CSTVRP

CSWG

CTAK

CTSS

CTTA

CTY

Cube

CUP

Custodian Of Data

Customer IT Security Needs

Customer Premises

Customer Service Orientation

CVA

CVRP

CWC

Cybercrime Treaty of 2001

Cycle

Cycle (for Overwriting Memory, Disk, Etc. )

Cyclic Redundancy Check

Can't Happen*

The traditional program comment for code executed under a condition that should never be true, for example a file size computed as negative. Often, such a condition being true indicates data corruption or a faulty algorithm; it is almost always handled by emitting a fatal error message and terminating or crashing, since there is little else that can be done. Some case variant of "can't happen" is also often the text emitted if the `impossible' error actually happens! Although "can't happen" events are genuinely infrequent in production code, programmers wise enough to check for them habitually are often surprised at how frequently they are triggered during development and how many headaches checking for them turns out to head off. See also firewall code (sense2)