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TinyCrypt SSL: Adapt ssl_check_key_curve() to TinyCrypt

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This commit is contained in:
Hanno Becker 2019-08-21 17:05:03 +01:00
parent 59e7b08b8a
commit 461fa723a1
1 changed files with 12 additions and 3 deletions
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15
library/ssl_srv.c
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@ -725,11 +725,17 @@ static int ssl_parse_alpn_ext( mbedtls_ssl_context *ssl,
/*
* Return 0 if the given key uses one of the acceptable curves, -1 otherwise
*/
#if defined(MBEDTLS_ECDSA_C)
#if defined(MBEDTLS_ECDSA_C) || defined(MBEDTLS_USE_TINYCRYPT)
static int ssl_check_key_curve( mbedtls_pk_context *pk,
unsigned char const *acceptable_ec_tls_ids,
size_t ec_tls_ids_len )
{
uint16_t tls_id;
#if defined(MBEDTLS_USE_TINYCRYPT)
((void) pk);
tls_id = 23; /* TLS ID for Secp256r1. */
#else
mbedtls_ecp_curve_info const *info;
mbedtls_ecp_group_id grp_id = mbedtls_pk_ec( *pk )->grp.id;
@ -737,6 +743,9 @@ static int ssl_check_key_curve( mbedtls_pk_context *pk,
if( info == NULL )
return( -1 );
tls_id = info->tls_id;
#endif /* MBEDTLS_USE_TINYCRYPT */
if( acceptable_ec_tls_ids == NULL )
return( -1 );
@ -745,7 +754,7 @@ static int ssl_check_key_curve( mbedtls_pk_context *pk,
uint16_t const cur_tls_id =
( acceptable_ec_tls_ids[0] << 8 ) | acceptable_ec_tls_ids[1];
if( cur_tls_id == info->tls_id )
if( cur_tls_id == tls_id )
return( 0 );
acceptable_ec_tls_ids += 2;
@ -825,7 +834,7 @@ static int ssl_pick_cert( mbedtls_ssl_context *ssl,
match = 0;
}
#if defined(MBEDTLS_ECDSA_C)
#if defined(MBEDTLS_ECDSA_C) || defined(MBEDTLS_USE_TINYCRYPT)
if( pk_alg == MBEDTLS_PK_ECDSA &&
ssl_check_key_curve( pk,
acceptable_ec_tls_ids,