lib/mbedtls
1
0
Fork 0
mirror of https://github.com/Mbed-TLS/mbedtls.git synced 2025-08-01 10:06:53 +03:00
Code Activity

fix comment, ChangeLog & migration-guide for MBEDTLS_ECP_FIXED_POINT_OPTIM

Browse Source 
Signed-off-by: kXuan <kxuanobj@gmail.com>
This commit is contained in:
kXuan
2021-06-02 16:53:42 +08:00
parent 22fc906d57
commit 782c2b9f36
3 changed files with 14 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
include/mbedtls/ecp.h
View File

@ -276,15 +276,16 @@ mbedtls_ecp_group;
#if !defined(MBEDTLS_ECP_FIXED_POINT_OPTIM)
/*
* Trade ROM usage for speed on fixed-point multiplication.
* Trade code size for speed on fixed-point multiplication.
*
* This speeds up repeated multiplication of the generator (that is, the
* multiplication in ECDSA signatures, and half of the multiplications in
* ECDSA verification and ECDHE) by a factor roughly 3 to 4.
*
* The cost is increasing ROM usage by a factor roughly 2.
* For each n-bit Short Weierstrass curve that is enabled, this adds 4n bytes
* of code size if n < 384 and 8n otherwise.
*
* Change this value to 0 to reduce ROM usage.
* Change this value to 0 to reduce code size.
*/
#define MBEDTLS_ECP_FIXED_POINT_OPTIM 1 /**< Enable fixed-point speed-up. */
#endif /* MBEDTLS_ECP_FIXED_POINT_OPTIM */