| =pod |
| |
| =head1 NAME |
| |
| RSA_check_key - validate private RSA keys |
| |
| =head1 SYNOPSIS |
| |
| #include <openssl/rsa.h> |
| |
| int RSA_check_key(RSA *rsa); |
| |
| =head1 DESCRIPTION |
| |
| This function validates RSA keys. It checks that B<p> and B<q> are |
| in fact prime, and that B<n = p*q>. |
| |
| It also checks that B<d*e = 1 mod (p-1*q-1)>, |
| and that B<dmp1>, B<dmq1> and B<iqmp> are set correctly or are B<NULL>. |
| |
| The key's public components may not be B<NULL>. |
| |
| =head1 RETURN VALUE |
| |
| RSA_check_key() returns 1 if B<rsa> is a valid RSA key, and 0 otherwise. |
| -1 is returned if an error occurs while checking the key. |
| |
| If the key is invalid or an error occurred, the reason code can be |
| obtained using L<ERR_get_error(3)|ERR_get_error(3)>. |
| |
| =head1 SEE ALSO |
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| L<rsa(3)|rsa(3)>, L<err(3)|err(3)> |
| |
| =head1 HISTORY |
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| RSA_check() appeared in OpenSSL 0.9.4. |
| |
| =cut |
