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Remove config option MBEDTLS_ECP_NO_INTERNAL_RNG

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It was used to remove the code used when mbedtls_ecp_mul() received a
NULL RNG parameter. This code is no longer relevant (as the RNG may no
longer be NULL) and will be unconditionally removed in the next commit.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
This commit is contained in:
Manuel Pégourié-Gonnard
2021-06-15 11:29:26 +02:00
parent 84dea01f36
commit d51aaad4c9
4 changed files with 0 additions and 70 deletions
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8
include/mbedtls/check_config.h
View File

@ -150,14 +150,6 @@
#error "MBEDTLS_ECP_C defined, but not all prerequisites"
#endif
#if defined(MBEDTLS_ECP_C) && !( \
defined(MBEDTLS_ECP_ALT) || \
defined(MBEDTLS_CTR_DRBG_C) || \
defined(MBEDTLS_HMAC_DRBG_C) || \
defined(MBEDTLS_ECP_NO_INTERNAL_RNG))
#error "MBEDTLS_ECP_C requires a DRBG module unless MBEDTLS_ECP_NO_INTERNAL_RNG is defined or an alternative implementation is used"
#endif
#if defined(MBEDTLS_PK_PARSE_C) && !defined(MBEDTLS_ASN1_PARSE_C)
#error "MBEDTLS_PK_PARSE_C defined, but not all prerequesites"
#endif

22
include/mbedtls/config.h
View File

@ -651,28 +651,6 @@
*/
#define MBEDTLS_ECP_NIST_OPTIM
/**
* \def MBEDTLS_ECP_NO_INTERNAL_RNG
*
* When this option is disabled, mbedtls_ecp_mul() will make use of an
* internal RNG when called with a NULL \c f_rng argument, in order to protect
* against some side-channel attacks.
*
* This protection introduces a dependency of the ECP module on one of the
* DRBG modules. For very constrained implementations that don't require this
* protection (for example, because you're only doing signature verification,
* so not manipulating any secret, or because local/physical side-channel
* attacks are outside your threat model), it might be desirable to get rid of
* that dependency.
*
* \warning Enabling this option makes some uses of ECP vulnerable to some
* side-channel attacks. Only enable it if you know that's not a problem for
* your use case.
*
* Uncomment this macro to disable some counter-measures in ECP.
*/
//#define MBEDTLS_ECP_NO_INTERNAL_RNG
/**
* \def MBEDTLS_ECP_RESTARTABLE
*