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Fix downgrading from TLS v1.3 to TLS v1.2

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Fix handling of ServerHello in TLS v1.3 to support TLS v1.2 when
downgrading.
Added support in client and server examples for using downgrade method:
wolfSSLv23_client_method_ex() or wolfSSLv23_server_method_ex().
Add tests, using downgrade version, of client or server downgrading from
TLS v1.3 to TLS v1.2.
This commit is contained in:
Sean Parkinson
2018-02-22 11:05:58 +10:00
parent dc4edd0cd9
commit da4024b46a
8 changed files with 141 additions and 32 deletions
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32
scripts/tls13.test
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@@ -373,6 +373,22 @@ if [ $RESULT -eq 0 ]; then
fi
echo ""
# TLS Downgrade server / TLS 1.2 client.
echo -e "\n\nTLS server downgrading to TLS v1.2"
port=0
./examples/server/server -v d -R $ready_file -p $port &
server_pid=$!
create_port
./examples/client/client -v 3 -p $port
RESULT=$?
remove_ready_file
if [ $RESULT -ne 0 ]; then
echo -e "\n\nIssue with TLS server downgrading to TLS v1.2"
do_cleanup
exit 1
fi
echo ""
# TLS 1.2 server / TLS 1.3 client.
echo -e "\n\nTLS v1.3 client upgrading server to TLS v1.3"
port=0
@@ -389,6 +405,22 @@ if [ $RESULT -eq 0 ]; then
fi
echo ""
# TLS 1.2 server / TLS downgrade client.
echo -e "\n\nTLS client downgrading to TLS v1.2"
port=0
./examples/server/server -v 3 -R $ready_file -p $port &
server_pid=$!
create_port
./examples/client/client -v d -p $port
RESULT=$?
remove_ready_file
if [ $RESULT -ne 0 ]; then
echo -e "\n\nIssue with TLS client downgrading to TLS v1.2"
do_cleanup
exit 1
fi
echo ""
# TLS 1.3 server / TLS 1.3 client send KeyUpdate before sending app data.
echo -e "\n\nTLS v1.3 KeyUpdate"
port=0