base64 encoding and decoding in COBOL
I had originally intended to contribute this code to the rosettacode.org site, however their licensing as of 29-Oct-2021 is the GFDL version 1.2 which, to my untrained eye, does not include a liability disclaimer. There is some discussion of licensing issues which seems to have ended in 2014 without resolution.
So. Here is what would have been my contribution to the Base64 encode data and Base64 decode data pages.