If mp_ubin_size(s) returns zero then mp_to_ubin() will fail and
not return MP_OKAY. If MP_OKAY is not returned, NULL is returned
to the caller of mpz2BN().
This change avoids the unnecessary memory allocation and function
calls. It also removes a dereference after null warning from
coverity.
Change-Id: I52ff2c166964e41cb4eef1dac637904bf2bf13bf
Seen on Ubuntu 18.04 with
gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04)
giving:
rsa-ltm.c: In function ‘ltm_rsa_private_calculate’:
rsa-ltm.c:135:9: error: variable ‘where’ set but not used [-Werror=unused-but-set-variable]
int where = 0; /* Ignore the set-but-unused warning from this */
^~~~~
rsa-ltm.c: In function ‘gen_p’:
rsa-ltm.c:482:9: error: variable ‘where’ set but not used [-Werror=unused-but-set-variable]
int where = 0; /* Ignore the set-but-unused warning from this */
^~~~~
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reduce the number of trials when generating RSA keys by calling
mp_prime_rabin_miller_trials() with the number of desired bits.
See libtom/libtommath#482.
All source files in lib/hcrypto should be built the same way.
Since this source directory is dependent on libroken then all source
files must be built using the roken.h declarations and included headers.
Also, there is no config.h in the local directory so angle brackets
include of quotes should be used.
Finally, because roken.h includes stdio.h, stdlib.h, stdarg.h, limits.h,
strings.h, sys/types.h, etc., do not include them separately.
Start all source files with
#include <config.h>
#include <roken.h>
Change-Id: I09ab47f8a5472018efe6c8b59a0e51fde8f24724
Modify the signature of mp_find_prime() to permit the number of
Miller-Rabin rounds to be specified. In addition, valid responses
now include MP_NO, MP_YES, and MP_VAL which is returned when
mp_prime_is_prime() fails.
Change-Id: I0195129a4dd75875e6dddb6d49a5ceb30afb1a17
Jeffrey Altman