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RSA_check_key ? validate private RSA keys |
#include <openssl/rsa.h> int RSA_check_key(RSA *rsa); |
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. The key’s public components may not be NULL. |
RSA_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). |
rsa(3), err(3) |
RSA_check() appeared in OpenSSL 0.9.4. |