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Allow compile-time configuration of PRNG in SSL module

Browse source 
Introduces MBEDTLS_SSL_CONF_RNG to allow configuring the
RNG to be used by the SSL module at compile-time.

Impact on code-size:

|  | GCC 8.2.1 | ARMC5 5.06 | ARMC6 6.12 |
| --- | --- | --- | --- |
| `libmbedtls.a` before | 23535 | 24089 | 27103 |
| `libmbedtls.a` after | 23471 | 24077 | 27045 |
| gain in Bytes | 64 | 12 | 58 |
This commit is contained in:
Hanno Becker 2019-06-13 15:39:27 +01:00
parent 1841f84c79
commit ece325c8dd
12 changed files with 153 additions and 34 deletions
Download patch file Download diff file Expand all files Collapse all files

4
programs/ssl/mini_client.c
View file

@ -209,7 +209,11 @@ int main( void )
goto exit;
}
#if !defined(MBEDTLS_SSL_CONF_RNG)
mbedtls_ssl_conf_rng( &conf, mbedtls_ctr_drbg_random, &ctr_drbg );
#else
mbedtls_ssl_conf_rng_ctx( &conf, &ctr_drbg );
#endif
#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
mbedtls_ssl_conf_psk( &conf, psk, sizeof( psk ),

8
programs/ssl/query_config.c
View file

@ -2706,6 +2706,14 @@ int query_config( const char *config )
}
#endif /* MBEDTLS_SSL_CONF_IGNORE_UNEXPECTED_CID */
#if defined(MBEDTLS_SSL_CONF_RNG)
if( strcmp( "MBEDTLS_SSL_CONF_RNG", config ) == 0 )
{
MACRO_EXPANSION_TO_STR( MBEDTLS_SSL_CONF_RNG );
return( 0 );
}
#endif /* MBEDTLS_SSL_CONF_RNG */
#if defined(MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET)
if( strcmp( "MBEDTLS_SSL_CONF_EXTENDED_MASTER_SECRET", config ) == 0 )
{

5
programs/ssl/ssl_client2.c
View file

@ -1764,7 +1764,12 @@ int main( int argc, char *argv[] )
}
#endif
#if !defined(MBEDTLS_SSL_CONF_RNG)
mbedtls_ssl_conf_rng( &conf, mbedtls_ctr_drbg_random, &ctr_drbg );
#else
mbedtls_ssl_conf_rng_ctx( &conf, &ctr_drbg );
#endif
mbedtls_ssl_conf_dbg( &conf, my_debug, stdout );
#if !defined(MBEDTLS_SSL_CONF_READ_TIMEOUT)

5
programs/ssl/ssl_server2.c
View file

@ -2570,7 +2570,12 @@ int main( int argc, char *argv[] )
}
#endif
#if !defined(MBEDTLS_SSL_CONF_RNG)
mbedtls_ssl_conf_rng( &conf, mbedtls_ctr_drbg_random, &ctr_drbg );
#else
mbedtls_ssl_conf_rng_ctx( &conf, &ctr_drbg );
#endif
mbedtls_ssl_conf_dbg( &conf, my_debug, stdout );
#if defined(MBEDTLS_SSL_CACHE_C)