5 RSA_check_key - Validate RSA keys
9 #include <openssl/rsa.h>
11 int RSA_check_key(RSA *rsa);
15 This function validates RSA keys. It checks that B<p> and B<q> are
16 in fact prime, and that B<n = p*q>.
18 It also checks that B<d*e = 1 mod (p-1*q-1)>,
19 and that B<dmp1>, B<dmq1> and B<iqmp> are set correctly or are B<NULL>.
21 The key's public components may not be B<NULL>.
25 RSA_check_key() returns 1 if B<rsa> is a valid RSA key, and 0 otherwise.
26 -1 is returned if an error occurs while checking the key.
28 If the key is invalid or an error occurred, the reason code can be
29 obtained using ERR_get_error(3).
37 RSA_check() appeared in OpenSSL 0.9.4.