RSA_check_key(3) OpenSSL RSA_check_key(3)NAMERSA_check_key - validate private RSA keys
SYNOPSIS
#include <openssl/rsa.h>
int RSA_check_key(RSA *rsa);
DESCRIPTION
This function validates RSA keys. It checks that p and q
are in fact prime, and that n = p*q.
It also checks that d*e = 1 mod (p-1*q-1), and that dmp1,
dmq1 and iqmp are set correctly or are NULL.
As such, this function can not be used with any arbitrary
RSA key object, even if it is otherwise fit for regular
RSA operation. See NOTES for more information.
RETURN VALUERSA_check_key() returns 1 if 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 ERR_get_error(3).
NOTES
This function does not work on RSA public keys that have
only the modulus and public exponent elements populated.
It performs integrity checks on all the RSA key material,
so the RSA key structure must contain all the private key
data too.
SEE ALSOrsa(3), ERR_get_error(3)HISTORYRSA_check() appeared in OpenSSL 0.9.4.
25/Sep/2002 0.9.6j RSA_check_key(3)
