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| 1 =pod |
| 2 |
| 3 =head1 NAME |
| 4 |
| 5 EVP_PKEY_get_default_digest_nid - get default signature digest |
| 6 |
| 7 =head1 SYNOPSIS |
| 8 |
| 9 #include <openssl/evp.h> |
| 10 int EVP_PKEY_get_default_digest_nid(EVP_PKEY *pkey, int *pnid); |
| 11 |
| 12 =head1 DESCRIPTION |
| 13 |
| 14 The EVP_PKEY_get_default_digest_nid() function sets B<pnid> to the default |
| 15 message digest NID for the public key signature operations associated with key |
| 16 B<pkey>. |
| 17 |
| 18 =head1 NOTES |
| 19 |
| 20 For all current standard OpenSSL public key algorithms SHA1 is returned. |
| 21 |
| 22 =head1 RETURN VALUES |
| 23 |
| 24 The EVP_PKEY_get_default_digest_nid() function returns 1 if the message digest |
| 25 is advisory (that is other digests can be used) and 2 if it is mandatory (other |
| 26 digests can not be used). It returns 0 or a negative value for failure. In |
| 27 particular a return value of -2 indicates the operation is not supported by the |
| 28 public key algorithm. |
| 29 |
| 30 =head1 SEE ALSO |
| 31 |
| 32 L<EVP_PKEY_CTX_new(3)|EVP_PKEY_CTX_new(3)>, |
| 33 L<EVP_PKEY_sign(3)|EVP_PKEY_sign(3)>, |
| 34 L<EVP_PKEY_verify(3)|EVP_PKEY_verify(3)>, |
| 35 L<EVP_PKEY_verifyrecover(3)|EVP_PKEY_verifyrecover(3)>, |
| 36 |
| 37 =head1 HISTORY |
| 38 |
| 39 This function was first added to OpenSSL 1.0.0. |
| 40 |
| 41 =cut |
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