| =pod |
| |
| =head1 NAME |
| |
| EVP_PKEY_get_default_digest_nid - get default signature digest |
| |
| =head1 SYNOPSIS |
| |
| #include <openssl/evp.h> |
| int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid); |
| |
| =head1 DESCRIPTION |
| |
| The EVP_PKEY_get_default_digest_nid() function sets B<pnid> to the default |
| message digest NID for the public key signature operations associated with key |
| B<pkey>. |
| |
| =head1 NOTES |
| |
| For all current standard OpenSSL public key algorithms SHA1 is returned. |
| |
| =head1 RETURN VALUES |
| |
| The EVP_PKEY_get_default_digest_nid() function returns 1 if the message digest |
| is advisory (that is other digests can be used) and 2 if it is mandatory (other |
| digests can not be used). It returns 0 or a negative value for failure. In |
| particular a return value of -2 indicates the operation is not supported by the |
| public key algorithm. |
| |
| =head1 SEE ALSO |
| |
| L<EVP_PKEY_CTX_new(3)|EVP_PKEY_CTX_new(3)>, |
| L<EVP_PKEY_sign(3)|EVP_PKEY_sign(3)>, |
| L<EVP_PKEY_verify(3)|EVP_PKEY_verify(3)>, |
| L<EVP_PKEY_verify_recover(3)|EVP_PKEY_verify_recover(3)>, |
| |
| =head1 HISTORY |
| |
| This function was first added to OpenSSL 1.0.0. |
| |
| =cut |
