Hello Andreas,
I used smth like
=======
=======
RSA_METHOD my_rsa_method = {
"My RSA method",
0, /* pub_enc */
0, /* pub_dec */
0, /* priv_enc */
my_priv_dec, /* priv_dec */
0, /* rsa_mod_exp */
0, /* bn_mod_exp */
0, /* init */
0, /* finish */
RSA_METHOD_FLAG_NO_CHECK|RSA_FLAG_SIGN_VER, /* flags */
NULL, /* app_data */
my_rsa_sign, /* rsa_sign */
0 /* rsa_verify */
};
static int my_priv_dec (int flen, const unsigned char *from,
unsigned char *to, RSA *rsa, int padding)
{
const RSA_METHOD *def_meth = RSA_PKCS1_SSLeay();
if ((rsa->meth == &my_rsa_method) && RSA_get_ex_data(rsa, my_key_pos))
{
return my_op_rsa_decrypt(flen, from, to, rsa, padding);
}
return def_meth->rsa_priv_dec(flen, from, to, rsa, padding);
}
==============
But this code worked for 1.0.* branch
вт, 19 марта 2019 г., 19:52 Fuchs, Andreas <andreas.fuchs@xxxxxxxxxxxxxxxxx>:
Following scenario:
I have an engine that implements e.g. RSA decryption.
That engine links against a library that links against libcrypto to perform RSA decryption.
Now if I have an application that sets the default library to be my engine, won't I end up in an infinite loop ?
Or the other way around:
- Is there a way to change the default engine from within my engine before calling out to the library ?
- Can the library itself select "software-only" as an engine ?
I guess I don't have a concrete problem in my specific case, since I have app_data attached to any key and
if my engine receives a key without app_data, it will just call SSLeay() functions.
But what if that was not the case ?
Thanks a lot for any help,
Andreas
