What are the steps to convert from Triple DES3 encryption to AES encryption?
Top Secret uses hardware encryption by default and uses software only if hardware encryption is not successful. The Top Secret control option AESENC controls what encryption level is used.
See the following link for the steps to convert from DES to AES 128E:
Migrate from Triple-DES to 256-Bit AES Encryption for Passwords and Password Phrases
See the following link for the steps to implement AES 256 encryption:
Migrate to 256-Bit AES Encryption for Passwords and Password Phrases