lib/mbedtls
1
0
Fork 0
mirror of https://github.com/Mbed-TLS/mbedtls.git synced 2025-07-29 11:41:15 +03:00
Code Activity

Implement FALLBACK_SCSV client-side

Browse Source
This commit is contained in:
Manuel Pégourié-Gonnard
2014-10-20 13:34:59 +02:00
parent a6c5ea2c43
commit 1cbd39dbeb
6 changed files with 144 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
library/ssl_cli.c
View File

@ -596,6 +596,17 @@ static int ssl_write_client_hello( ssl_context *ssl )
*p++ = (unsigned char)( ciphersuites[i] );
}
/* Some versions of OpenSSL don't handle it correctly if not at end */
#if defined(POLARSSL_SSL_FALLBACK_SCSV)
if( ssl->fallback == SSL_IS_FALLBACK )
{
SSL_DEBUG_MSG( 3, ( "adding FALLBACK_SCSV" ) );
*p++ = (unsigned char)( SSL_FALLBACK_SCSV >> 8 );
*p++ = (unsigned char)( SSL_FALLBACK_SCSV );
n++;
}
#endif
*q++ = (unsigned char)( n >> 7 );
*q++ = (unsigned char)( n << 1 );