Encryption

[athiasjerome]

Consider reuse of, or guidance to use, cyboxCommon:CipherEnum
Ref. http://cybox.mitre.org/language/version2.1/xsddocs/cybox_common_xsd.html#CipherEnum
for
maecVocabs:CommonCapabilityPropertiesEnum-1.0
encryption algorithm

or as part of EncryptionType @encryption_mechanism
https://maecproject.github.io/data-model/4.1/ArtifactObj/EncryptionType

[ikiril01]

@athiasjerome good point, it would certainly make sense to align on these encryption algorithms between MAEC and CybOX. Perhaps we can make the MAEC CommonCapabilityPropertiesEnum a union of the CybOX CipherEnum and its own set of terms.