Cryptology - The branch of knowledge that treats the principles of cryptography and cryptanalytics; and the activities involved in producing signals intelligence (SIGINT) and maintaining communications security ( COMSEC). AP2.1.23.
NIST IR 7298
NIST SP 800-59
Cryptology - 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 noncommunications 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. [Crypto Pub 1-0]