Data Encryption Algorithm definition in Computer Security terms:
Definition(s): The algorithm specified in FIPS PUB 46-3, Data Encryption Algorithm (DEA).
Source(s): NIST SP 800-20
The DEA cryptographic engine that is used by the Triple Data Encryption Algorithm (TDEA).
Source(s): NIST SP 800-67 Rev. 1
reference: CSRC Glossary