- if(!BN_generate_prime_ex(rsa->q, bitsq, 0, NULL, NULL, cb))
+ /* When generating ridiculously small keys, we can get stuck
+ * continually regenerating the same prime values. Check for
+ * this and bail if it happens 3 times. */
+ unsigned int degenerate = 0;
+ do
+ {
+ if(!BN_generate_prime_ex(rsa->q, bitsq, 0, NULL, NULL, cb))
+ goto err;
+ } while((BN_cmp(rsa->p, rsa->q) == 0) && (++degenerate < 3));
+ if(degenerate == 3)
+ {
+ ok = 0; /* we set our own err */
+ RSAerr(RSA_F_RSA_GENERATE_KEY,RSA_R_KEY_SIZE_TOO_SMALL);