I might be doing something really stupid, but I checked my code again
and don't seem to be able to find it. I'm trying to use the function
BN_mod_exp for values which are earlier generated by other BN_*
functions. Here's the code:
e = BN_new();
/* e = (a ^ t) (mod(phi)) */
if (!BN_mod_exp(e, a, t, phi, ctx)){
BIO_printf(bio_err, "Can't calculate e = 2^t mod(phi)");
ERR_print_errors(bio_err);
goto err5;
}
I get the following error from gdb:
Program received signal SIGSEGV, Segmentation fault.
0x4cd31169 in free () from /lib/libc.so.6
(gdb)
An example set of values generated by the program before segfaulting are:
p: E885D06663F9DAF3
q:E3DCF32C591FF3A5
n: CEF757A92F690551B3D2C608994BC79F
(p-1): E885D06663F9DAF2
(q-1): E3DCF32C591FF3A4
phi: CEF757A92F69054FE7700275DC31F908
t: 2710
a: 2 /*achieved by using BN_dec2bn*/
I would appreciate any help on this.
thanks,
Ashu
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