NAME
OBJ_find_sigid_algs,
OBJ_find_sigid_by_algs —
signature algorithm mappings
SYNOPSIS
#include
<openssl/objects.h>
int
OBJ_find_sigid_algs(int
signature, int *pdigest, int
*pencryption);
int
OBJ_find_sigid_by_algs(int
*psignature, int digest, int
encryption);
DESCRIPTION
OBJ_find_sigid_algs()
looks up the signature algorithm. If it is found, the
associated digest algorithm is stored in *pdigest
unless pdigest is a NULL
pointer, and the associated encryption algorithm is stored in
*pencryption unless pencryption
is a NULL pointer.
OBJ_find_sigid_by_algs()
looks up the pair (digest,
encryption). If it is found, the associated signature
algorithm is stored in *psignature unless
psignature is a NULL
pointer.
RETURN VALUES
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.
SEE ALSO
HISTORY
These functions first appeared in OpenSSL 1.0.0 and have been available since OpenBSD 4.9.