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Fix indicative values of ops counts

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Previous measurements were wrong due to counting multiplication by a small
constant as a full multiplication, which it is not.
This commit is contained in:
Manuel Pégourié-Gonnard 2017-03-20 14:13:07 +01:00
parent 1c678e0e06
commit 9c5c78ff5c
2 changed files with 5 additions and 5 deletions
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2
include/mbedtls/ecp.h
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@ -271,7 +271,7 @@ mbedtls_ecp_keypair;
* \note A "basic operation" is roughly multiplication in GF(p),
* or whatever takes a roughly equivalent amount of time.
* As an indication, a scalar multiplication on P-256 is
* of the order of 3600 "basic operations" with default
* of the order of 3300 "basic operations" with default
* settings.
*
* \warning Very low values are not always respected: sometimes

8
tests/suites/test_suite_ecp.function
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@ -69,11 +69,11 @@ void ecp_test_vect_restart( int id,
* change in the future. A factor 2 is a minimum safety margin.
*
* For reference, with mbed TLS 2.4 and default settings, for P-256:
* - Random point mult: ~3600M
* - Cold base point mult: ~3600M
* - Hot base point mult: ~1200M
* - Random point mult: ~3250M
* - Cold base point mult: ~3300M
* - Hot base point mult: ~1100M
* With MBEDTLS_ECP_WINDOW_SIZE set to 2 (minimum):
* - Random point mult: ~4200M
* - Random point mult: ~3850M
*/
mbedtls_ecp_group grp;
mbedtls_ecp_point R;