f7a2afa652
DSA_SIG_new() and DSA_SIG_free() to remove ASN1 dependencies from DSA_do_sign() and DSA_do_verify().
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.