@deftypefun {int} {gnutls_pkcs7_get_signature_info} (gnutls_pkcs7_t @var{pkcs7}, unsigned @var{idx}, gnutls_pkcs7_signature_info_st * @var{info})
@var{pkcs7}: should contain a @code{gnutls_pkcs7_t}  type

@var{idx}: the index of the signature info to check

@var{info}: will contain the output signature

This function will return information about the signature identified
by idx in the provided PKCS @code{7}  structure. The information should be
deinitialized using @code{gnutls_pkcs7_signature_info_deinit()} .

@strong{Returns:} On success, @code{GNUTLS_E_SUCCESS}  (0) is returned, otherwise a
negative error value.

@strong{Since:} 3.4.2
@end deftypefun