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ecp: introduce new ECP_LIGHT symbol

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Signed-off-by: Valerio Setti <valerio.setti@nordicsemi.no>
This commit is contained in:
Valerio Setti 2023-04-05 18:15:32 +02:00
parent 6a327a5fdc
commit fd122f4e95
4 changed files with 36 additions and 8 deletions
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7
include/mbedtls/build_info.h
View file

@ -105,6 +105,13 @@
#define MBEDTLS_MD_LIGHT
#endif
/* MBEDTLS_ECP_C is now a subset of MBEDTLS_ECP_LIGHT which contains the
* arithmetic part. As a consequence if MBEDTLS_ECP_C is required for
* some reason, then MBEDTLS_ECP_LIGHT should be enabled as well. */
#if defined(MBEDTLS_ECP_C)
#define MBEDTLS_ECP_LIGHT
#endif
/* If MBEDTLS_PSA_CRYPTO_C is defined, make sure MBEDTLS_PSA_CRYPTO_CLIENT
* is defined as well to include all PSA code.
*/

2
include/mbedtls/check_config.h
View file

@ -454,7 +454,7 @@
#endif
#if defined(MBEDTLS_PK_C) && \
!defined(MBEDTLS_RSA_C) && !defined(MBEDTLS_ECP_C)
!defined(MBEDTLS_RSA_C) && !defined(MBEDTLS_ECP_LIGHT)
#error "MBEDTLS_PK_C defined, but not all prerequisites"
#endif

6
include/mbedtls/ecp.h
View file

@ -312,7 +312,7 @@ mbedtls_ecp_group;
/**
* The maximum size of the groups, that is, of \c N and \c P.
*/
#if !defined(MBEDTLS_ECP_C)
#if !defined(MBEDTLS_ECP_LIGHT)
/* Dummy definition to help code that has optional ECP support and
* defines an MBEDTLS_ECP_MAX_BYTES-sized array unconditionally. */
#define MBEDTLS_ECP_MAX_BITS 1
@ -343,9 +343,9 @@ mbedtls_ecp_group;
#define MBEDTLS_ECP_MAX_BITS 192
#elif defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED)
#define MBEDTLS_ECP_MAX_BITS 192
#else
#else /* !MBEDTLS_ECP_LIGHT */
#error "Missing definition of MBEDTLS_ECP_MAX_BITS"
#endif
#endif /* !MBEDTLS_ECP_LIGHT */
#define MBEDTLS_ECP_MAX_BYTES ((MBEDTLS_ECP_MAX_BITS + 7) / 8)
#define MBEDTLS_ECP_MAX_PT_LEN (2 * MBEDTLS_ECP_MAX_BYTES + 1)