Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

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

cryptology

Definitions:

  Originally the field encompassing both cryptography and cryptanalysis. Today, cryptology in the U.S. Government is the collection and/or exploitation of foreign communications and non- communications emitters, known as SIGINT; and solutions, products, and services, to ensure the availability, integrity, authentication, confidentiality, and non-repudiation of national security telecommunications and information systems, known as IA.
Sources:
NIST SP 800-59 under Cryptology from Cryptologic Publication 1-0

  The mathematical science that deals with cryptanalysis and cryptography.
Sources:
CNSSI 4009-2015

  The science that deals with hidden, disguised, or encrypted communications. It includes communications security and communications intelligence.
Sources:
NIST SP 800-60 Vol. 1 Rev. 1 under Cryptology
NIST SP 800-60 Vol. 2 Rev. 1 under Cryptology