ref: 1c238283cb531d6024f55b96411c061b80df5258
dir: /sys/src/ape/lib/openssl/crypto/dsa/README/
The stuff in here is based on patches supplied to me by Steven Schoch <schoch@sheba.arc.nasa.gov> to do DSS. I have since modified a them a little but a debt of gratitude is due for doing the initial work.