signature algorithm mappings
signature, int *pdigest, int
*psignature, int digest, int
looks up the signature algorithm. If it is found, the
associated digest algorithm is stored in *pdigest
unless pdigest is a
pointer, and the associated encryption algorithm is stored in
*pencryption unless pencryption
looks up the pair (digest,
encryption). If it is found, the associated signature
algorithm is stored in *psignature unless
psignature is a
OBJ_find_sigid_algs() returns 1 if a
definition of the signature algorithm is found or 0 if
a definition of the signature algorithm is not built
into the library.
OBJ_find_sigid_by_algs() returns 1 if a
signature algorithm using the specified digest and
encryption algorithms is defined or 0 if the
definition of such an algorithm is not built into the library.
EVP_cleanup(3), OBJ_create(3), OBJ_NAME_add(3), OBJ_nid2obj(3)
These functions first appeared in OpenSSL 1.0.0 and have been available since OpenBSD 4.9.