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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
2022-06-16 10:48:06 +02:00
committed by Manuel Pégourié-Gonnard
parent 8641102bc1
commit 06e1fcdb45
2 changed files with 5 additions and 1 deletions
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library/ssl_tls.c
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@ -2697,7 +2697,9 @@ static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl,
{
const mbedtls_pk_context *pk = &chain->pk;
/* If certificate uses an EC key, make sure the curve is OK */
/* If certificate uses an EC key, make sure the curve is OK.
* 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 here. */
if( mbedtls_pk_can_do( pk, MBEDTLS_PK_ECKEY ) &&
mbedtls_ssl_check_curve( ssl, mbedtls_pk_ec( *pk )->grp.id ) != 0 )
{