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TinyCrypt SSL: Extend scope use of TC in CliKeyExchange writing

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Extend scope of TC in ECDH-param extraction from CRT

Previously, TinyCrypt was only used for ECDHE-ECDSA/RSA ciphersuites.
This commit is a step towards using it for _all_ ciphersuites involving
ECDHE (specifically: ECDHE, ECDHE-PSK, static ECDH), extending the scope
of the use of TinyCrypt in the writing of the ClientKeyExchange message.
This commit is contained in:
Hanno Becker 2019-09-01 07:49:50 +01:00
parent 7352bd141e
commit c7effc04c1
1 changed files with 6 additions and 1 deletions
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7
library/ssl_cli.c
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@ -3595,9 +3595,14 @@ static int ssl_out_client_key_exchange_write( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED */
#if defined(MBEDTLS_USE_TINYCRYPT)
if( mbedtls_ssl_suite_get_key_exchange( ciphersuite_info )
== MBEDTLS_KEY_EXCHANGE_ECDHE_RSA ||
mbedtls_ssl_suite_get_key_exchange( ciphersuite_info )
== MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA ||
mbedtls_ssl_suite_get_key_exchange( ciphersuite_info )
== MBEDTLS_KEY_EXCHANGE_ECDHE_RSA )
== MBEDTLS_KEY_EXCHANGE_ECDH_RSA ||
mbedtls_ssl_suite_get_key_exchange( ciphersuite_info )
== MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA )
{
const struct uECC_Curve_t * uecc_curve = uECC_secp256r1();
((void) n);