Closed circuit television
CDMA
Code division multiple access
CDN
Content delivery network
CEO
Chief executive officer
CER
Crossover error rate (biometrics)
CERT
Computer emergency response team
CFB
Cipher feedback
CGI
Common gateway interface
CHAP
Challenge-handshake authentication protocol
CHIPS
Clearing house interbank payment system
CIDR
Classless inter-domain routing
CIO
Chief information officer
CIRC
Computer incident response center
CIRT
Computer incident response team
CISO
Corporate information security officer
CKMS
Cryptographic key management systems
CM
Configuration management
CMAC
Cipher-based method authentication code
CMM
Capability maturity model
CMS
Configuration management system
CMVP
Cryptographic module validation program
CONOP
Concept of operations (i.e., only one document)
COOP
Continuity of operations
COTS
Commercial off-the-shelf
CP
Certificate policy
CPE
Common platform enumeration
CPS
Certification practice statement
CPU
Central processing unit
CRAM
Challenge-response authentication mechanism
CRC
Cyclic redundancy check
CRL
Certificate revocation list
CRM
Customer relationship management
CS
Client/server
CSIRC
Computer security incident response capability
CSIRT
Computer security incident response team
CSMA/CA
Carrier sense multiple access with collision avoidance
CSMA/CD
Carrier sense multiple access with collision detection
CSRC
Computer security resource center
CSO
Chief security officer
CSP
Credentials service provider/critical security parameter
CTO
Chief technology officer
CTR
Counter mode encryption
CVE
Common vulnerabilities and exposures
CVSS
Common vulnerability scoring system
D
DA
Data administration/administrator/destination address
DAA
Designated approving authority/designated accrediting authority
DAC
Discretionary access control
DAD
Duplicate address detection
DASD
Direct access storage device
DBA
Database administrator
DBMS
Database management system
DC
Domain controller
DCE
Distributed computing environment/data circuit terminating equipment
DCL
Data control language
DD
Data dictionary
DDL
Data definition language
DDP
Distributed data processing
DDOS
Distributed denial-of-service
DEA
Data encryption algorithm
DES
Data encryption standard
DESX
Extended data encryption standard
DFD
Data flow diagram
DH
Diffie-Hellman
DHCP
Dynamic host configuration protocol
DISA
Direct inward system access/U.S. Defense Information Systems Agency
DML
Data manipulation language
DMZ
Demilitarized zone
DNS
Domain name system
DNP
Distributed network protocol
DNS
Domain name system
DOM
Document object model
DoS
Denial-of-service
DoQ
Denial-of-quality
DPA
Differential power analysis
DRP
Disaster recovery plan
DSA
Digital signature algorithm
DSL
Digital subscriber line
DSP
Digital signal processors
DSS
Digital signature standard
DVMRP
Distance vector multicast routing protocol
E
E2E
Exchange-to-exchange electronic commerce model
EAL
Evaluation assurance level
EAP
Extensible authentication protocol
EBCDIC
Extended binary coded decimal interchange code
EBGP
Exterior border gateway protocol
EBTS
Electronic benefit transfer system
EC
Electronic commerce
ECC
Elliptic curve cryptography
ECDSA
Elliptic curve digital signature algorithm
ECDH
Elliptic curve Diffie-Hellman
ECP
Encryption control protocol
ECPA
Electronic communications privacy act
EDC
Error detection code
EDI
Electronic data interchange
EDIFACT
Electronic data interchange for administration, commerce, and transport
EDMS
Electronic document management system
EEPROM
Electronically erasable, programmable read-only memory
EES
Escrowed encryption standard
EFP
Environmental failure protection
EFS
Encrypted file system
EFT
Environmental failure testing
EFTS
Electronic funds transfer system
EGP
Exterior gateway protocol
EH
Extension header
EIDE
Enhanced IDE (integrated drive electronics)
EISA
Extended industry-standard architecture
EME
Electromagnetic emanation
EMRT
Emergency response time
EPICS
Electronic product code information services
ERD
Entity relationship diagram
ERP
Enterprise resource planning
ESN
Electronic serial number
ESP
Encapsulating security payload
EU
European Union
F