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Add comments when can_do() is safe to use

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Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
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Manuel Pégourié-Gonnard
2022-06-17 10:49:29 +02:00
committed by Manuel Pégourié-Gonnard
parent 19a567ba43
commit 66b0d61718
2 changed files with 5 additions and 1 deletions
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library/ssl_tls12_client.c
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@ -2089,6 +2089,8 @@ static int ssl_get_ecdh_params_from_cert( mbedtls_ssl_context *ssl )
peer_pk = &ssl->session_negotiate->peer_cert->pk;
#endif /* MBEDTLS_SSL_KEEP_PEER_CERTIFICATE */
/* This is a public key, so it can't be opaque, so can_do() is a good
* enough check to ensure pk_ec() is safe to use below. */
if( ! mbedtls_pk_can_do( peer_pk, MBEDTLS_PK_ECKEY ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "server key not ECDH capable" ) );