Changes between 0.9.8b and 0.9.9 [xx XXX xxxx]
+ *) New functions EVP_Digest{Sign,Verify)*. These are enchance versions of
+ EVP_{Sign,Verify}* which allow an application to customise the signature
+ process.
+ [Steve Henson]
+
+ *) New -resign option to smime utility. This adds one or more signers
+ to an existing PKCS#7 signedData structure. Also -md option to use an
+ alternative message digest algorithm for signing.
+ [Steve Henson]
+
*) Tidy up PKCS#7 routines and add new functions to make it easier to
create PKCS7 structures containing multiple signers. Update smime
application to support multiple signers.