Source
$ openssl enc -aes-128-cbc -k secret -P -md sha1
*** WARNING : deprecated key derivation used.
Using -iter or -pbkdf2 would be better.
salt=B85E4B947246274D
key=37F3D028910EC35FB956219FE487DFC8
iv =2015992ADD4263EE169084C6FD8C1FBA
- a valid AES key can also be generated using a random string generated with openssl