You're correct. See the original scrypt paper by Percival [1], halfway down page 13, for a description of the categories. The table itself is at the top of page

You're correct. See the original scrypt paper by Percival [1], halfway down page 13, for a description of the categories. The table itself is at the top of page 14. [1] https://www.tarsnap.com/scrypt/scrypt.pdf https://www.tarsnap.com/scrypt/scrypt.pdf