Glossary E
ECC

ECC

Elliptic Curve Cryptography, the public-key cryptographic methods using operations in an elliptic curve group. See NIST SP 800-56A Rev. 2 and NIST SP 800-56C  for more information.  

Read More

E-commerce

E-commerce

The use of network technology (especially the internet) to buy or sell goods and services. See NIST SP 800-32 for more information. 

Read More

Egress Filtering

Egress Filtering

Filtering of outgoing network traffic. See NIST SP 800-41 Rev. 1 for more information. 

Read More

EMI

EMI

An electromagnetic disturbance that interrupts, obstructs, or otherwise degrades or limits the effective performance of electronics/electrical equipment. See NIST SP 800-101 Rev. 1 and NIST SP 800-72 for more information. 

Read More

EPHI

EPHI

Electronic Protected Health Information Individually identifiable health information: that is: (i) Transmitted by electronic media; ...

Read More

Encryption

Encryption

Encryption provides confidentiality and prevents unauthorized disclosure of data. Encrypted data is in a ciphertext format that is unreadable. Attackers can’t read encrypted traffic sent ...

Read More

ECDSA

ECDSA

Elliptic Curve Digital Signature Algorithm (ECDSA) A digital signature algorithm that is an analog of DSA using elliptic curve mathematics and specified in ANSI draft standard X9.62. See NIST SP ...

Read More

Emergency-action-plan

Emergency Action Plan

A plan developed to prevent loss of national intelligence; protect personnel, facilities, and communications; and recover operations damaged by terrorist attack, natural disaster, or similar ...

Read More

Emissin-Security

Emission Security (EMSEC)

The component of communications security that results from all measures taken to deny unauthorized persons information of value that might be derived from intercept and ...

Read More

ESPP

ESPP

Encapsulating Security Payload Protocol IPsec security protocol that can provide encryption and/or integrity protection for packet headers and data. See  NIST SP 800-77 for more information. 

Read More

encipher

Encipher

Cryptographically transform data to produce cipher text.See  CNSSI 4009-2015 under encrypt (IETF RFC 4949 Ver 2) for more information.  See encrypt. Rationale: Deprecated Term: Encrypt is the preferred term. See  CNSSI ...

Read More

Encrypt

Encrypt

Cryptographically transform data to produce cipher text. See CNSSI 4009-2015 (IETF RFC 4949 Ver 2) for more information. 

Read More