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ECDH alternative implementation support

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Add alternative implementation support for ECDH at the higher layer
This commit is contained in:
Ron Eldor 2017-06-18 17:57:51 +03:00
parent 45d269555b
commit 433f39c437
4 changed files with 10 additions and 1 deletions
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4
ChangeLog
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@ -36,6 +36,10 @@ Changes
* Clarify ECDSA documentation and improve the sample code to avoid * Clarify ECDSA documentation and improve the sample code to avoid
misunderstandings and potentially dangerous use of the API. Pointed out misunderstandings and potentially dangerous use of the API. Pointed out
by Jean-Philippe Aumasson. by Jean-Philippe Aumasson.
* Add support for alternative implementation for ECDH, controlled by new
configuration flag MBEDTLS_ECDH_ALT in config.h.
Alternative Ecdh is supported for implementation of `mbedtls_ecdh_gen_public`
and `mbedtls_ecdh_compute_shared`.
= mbed TLS 2.5.0 branch released 2017-05-17 = mbed TLS 2.5.0 branch released 2017-05-17

1
include/mbedtls/config.h
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@ -238,6 +238,7 @@
//#define MBEDTLS_BLOWFISH_ALT //#define MBEDTLS_BLOWFISH_ALT
//#define MBEDTLS_CAMELLIA_ALT //#define MBEDTLS_CAMELLIA_ALT
//#define MBEDTLS_DES_ALT //#define MBEDTLS_DES_ALT
//#define MBEDTLS_ECDH_ALT
//#define MBEDTLS_XTEA_ALT //#define MBEDTLS_XTEA_ALT
//#define MBEDTLS_MD2_ALT //#define MBEDTLS_MD2_ALT
//#define MBEDTLS_MD4_ALT //#define MBEDTLS_MD4_ALT

3
library/ecdh.c
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@ -38,6 +38,7 @@
#include <string.h> #include <string.h>
#if !defined(MBEDTLS_ECDH_ALT)
/* /*
* Generate public key: simple wrapper around mbedtls_ecp_gen_keypair * Generate public key: simple wrapper around mbedtls_ecp_gen_keypair
*/ */
@ -81,7 +82,7 @@ cleanup:
return( ret ); return( ret );
} }
#endif /* MBEDTLS_ECDH_ALT */
/* /*
* Initialize context * Initialize context
*/ */

3
library/version_features.c
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@ -93,6 +93,9 @@ static const char *features[] = {
#if defined(MBEDTLS_DES_ALT) #if defined(MBEDTLS_DES_ALT)
"MBEDTLS_DES_ALT", "MBEDTLS_DES_ALT",
#endif /* MBEDTLS_DES_ALT */ #endif /* MBEDTLS_DES_ALT */
#if defined(MBEDTLS_ECDH_ALT)
"MBEDTLS_ECDH_ALT",
#endif /* MBEDTLS_ECDH_ALT */
#if defined(MBEDTLS_XTEA_ALT) #if defined(MBEDTLS_XTEA_ALT)
"MBEDTLS_XTEA_ALT", "MBEDTLS_XTEA_ALT",
#endif /* MBEDTLS_XTEA_ALT */ #endif /* MBEDTLS_XTEA_ALT */