mbedtls/include
Manuel Pégourié-Gonnard 054433c493 Add mbedtls_ecp_set_max_ops()
The plan is to count basic operations as follows:
- call to ecp_add_mixed()   -> 11
- call to ecp_double_jac()  -> 8
- call to mpi_mul_mpi()     -> 1
- call to mpi_inv_mod()     -> 120
- everything else           -> not counted

The counts for ecp_add_mixed() and ecp_double_jac() are based on the actual
number of calls to mpi_mul_mpi() they they make.

The count for mpi_inv_mod() is based on timing measurements on K64F and
LPC1768 boards, and are consistent with the usual very rough estimate of one
inversion = 100 multiplications. It could be useful to repeat that measurement
on a Cortex-M0 board as those have smaller divider and multipliers, so the
result could be a bit different but should be the same order of magnitude.

The documented limitation of 120 basic ops is due to the calls to mpi_inv_mod()
which are currently not interruptible nor planned to be so far.
2017-08-09 11:44:53 +02:00
..
mbedtls Add mbedtls_ecp_set_max_ops() 2017-08-09 11:44:53 +02:00
.gitignore Rename include directory to mbedtls 2015-03-10 11:23:56 +00:00
CMakeLists.txt Fix whitespace in CMakeLists.txt 2015-06-25 10:59:57 +02:00