Changes between 0.9.8b and 0.9.9 [xx XXX xxxx]
+ *) Initial support for PKCS#5 v2.0 PRFs other than default SHA1 HMAC.
+ [Steve Henson]
+
+ *) Replace the algorithm specific calls to generate keys in "req" with the
+ new API.
+ [Steve Henson]
+
*) Update PKCS#7 enveloped data routines to use new API. This is now
supported by any public key method supporting the encrypt operation. A
ctrl is added to allow the public key algorithm to examine or modify