Looking at the unfinished form of the final phases of SHA-256.

This part covers the last round of compression, where the working variables take their final values. After that comes the step of adding those final values to the initial hash values, which produces the message digest in binary form. The very last step is converting that digest into its hexadecimal representation.

Finishing this section has taken longer than I planned, and I still have a little ways to go — but I like what I’m seeing so far.