What is Inverse equivalent (decrypt) in the AES specification examples? [migrated]

Referring to the AES specification:
https://nvlpubs.nist.gov/nistpubs/fips/nist.fips.197.pdf
Printed pages 35-37…
The first detailed walkthrough is encryption, the second is decryption…. I don’t understand what is the third, "equi… Continue reading What is Inverse equivalent (decrypt) in the AES specification examples? [migrated]