CEN generation testcase

Ok!  Much admiration -- Can you turn "AES-128 in plain / naked / electronic codebook mode" into an actual test case that everyone's implementation can verify?  This is a really important step.
(a) timestamp is : 1585346179
(b) secret key is :
67f48de38f35c231e34e533649ecbfeb
(c) CEN is:
___________
Ideally you show the Swift code that fills in the blank of (c), and then we replicate in Android (Kotlin/Java) [or scratch our heads and see what we missed], or the opposite?