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Change ssl_tls13_read_public_ecdhe_share() to use PSA-specific parsing code.

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Signed-off-by: Przemyslaw Stekiel <[email protected]>
This commit is contained in:
Przemyslaw Stekiel
2022-02-10 15:03:11 +01:00
parent b1b1f36e47
commit f008ae7f59
1 changed files with 16 additions and 17 deletions
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library/ssl_tls13_client.c
+16 -17
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@@ -387,25 +387,24 @@ static int ssl_tls13_read_public_ecdhe_share( mbedtls_ssl_context *ssl,
size_t buf_len ) size_t buf_len )
{ {
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
uint8_t ecpoint_len;
uint8_t *p = (uint8_t*)buf;
mbedtls_ssl_handshake_params *handshake = ssl->handshake;
ret = mbedtls_ecdh_tls13_read_public( &ssl->handshake->ecdh_ctx, /*
buf, buf_len ); * Put peer's ECDH public key in the format understood by PSA.
if( ret != 0 ) */
ecpoint_len = *p++;
if( ( buf_len - 1 ) < ecpoint_len )
return( MBEDTLS_ERR_SSL_DECODE_ERROR );
if ( ( ret = mbedtls_psa_tls_ecpoint_to_psa_ec( p,
ecpoint_len, handshake->ecdh_psa_peerkey,
sizeof( handshake->ecdh_psa_peerkey ),
&handshake->ecdh_psa_peerkey_len ) ) != 0 )
{ {
MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ecdh_tls13_read_public" ), ret ); return( ret );
MBEDTLS_SSL_PEND_FATAL_ALERT( MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER,
MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
return( MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
}
if( ssl_tls13_check_ecdh_params( ssl ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "ssl_tls13_check_ecdh_params() failed!" ) );
MBEDTLS_SSL_PEND_FATAL_ALERT( MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER,
MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
return( MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );
} }
return( 0 ); return( 0 );