ref: 2e2a91f26b4724ae5f9942d545749a16b46c2a3f
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.