for enhanced sign/verify operations.

existing structure and using alternative digest for signing.

functions.

to create S/MIME signed data with multiple signers.

private keys.

FIXME: this function should really be rewritten because it is *horrible*.

supported encryption algorithm instead of a PBE NID then use that
algorithm with PBES2.

duplicate numbers.  Renumbering.

More error checking for RSA pmeth.

handle unsupported key types.

ctrl.

to.