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Renegotiation: Add tests for SigAlg ext parsing

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This commit adds regression tests for the bug when we didn't parse the
Signature Algorithm extension when renegotiating. (By nature, this bug
affected only the server)

The tests check for the fallback hash (SHA1) in the server log to detect
that the Signature Algorithm extension hasn't been parsed at least in
one of the handshakes.

A more direct way of testing is not possible with the current test
framework, since the Signature Algorithm extension is parsed in the
first handshake and any corresponding debug message is present in the
logs.
This commit is contained in:
Janos Follath 2017-10-05 12:29:42 +01:00
parent f3d441f2a5
commit a43b6ad17a
1 changed files with 34 additions and 0 deletions
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34
tests/ssl-opt.sh
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@ -1414,6 +1414,40 @@ run_test "Renegotiation: server-initiated" \
-s "=> renegotiate" \ -s "=> renegotiate" \
-s "write hello request" -s "write hello request"
# Checks that no Signature Algorithm with SHA-1 gets negotiated. Negotiating SHA-1 would mean that
# the server did not parse the Signature Algorithm extension. This test is valid only if an MD
# algorithm stronger than SHA-1 is enabled in config.h
run_test "Renegotiation: Signature Algorithms parsing, client-initiated" \
"$P_SRV debug_level=3 exchanges=2 renegotiation=1 auth_mode=optional" \
"$P_CLI debug_level=3 exchanges=2 renegotiation=1 renegotiate=1" \
0 \
-c "client hello, adding renegotiation extension" \
-s "received TLS_EMPTY_RENEGOTIATION_INFO" \
-s "found renegotiation extension" \
-s "server hello, secure renegotiation extension" \
-c "found renegotiation extension" \
-c "=> renegotiate" \
-s "=> renegotiate" \
-S "write hello request" \
-S "client hello v3, signature_algorithm ext: 2" # Is SHA-1 negotiated?
# Checks that no Signature Algorithm with SHA-1 gets negotiated. Negotiating SHA-1 would mean that
# the server did not parse the Signature Algorithm extension. This test is valid only if an MD
# algorithm stronger than SHA-1 is enabled in config.h
run_test "Renegotiation: Signature Algorithms parsing, server-initiated" \
"$P_SRV debug_level=3 exchanges=2 renegotiation=1 auth_mode=optional renegotiate=1" \
"$P_CLI debug_level=3 exchanges=2 renegotiation=1" \
0 \
-c "client hello, adding renegotiation extension" \
-s "received TLS_EMPTY_RENEGOTIATION_INFO" \
-s "found renegotiation extension" \
-s "server hello, secure renegotiation extension" \
-c "found renegotiation extension" \
-c "=> renegotiate" \
-s "=> renegotiate" \
-s "write hello request" \
-S "client hello v3, signature_algorithm ext: 2" # Is SHA-1 negotiated?
run_test "Renegotiation: double" \ run_test "Renegotiation: double" \
"$P_SRV debug_level=3 exchanges=2 renegotiation=1 auth_mode=optional renegotiate=1" \ "$P_SRV debug_level=3 exchanges=2 renegotiation=1 auth_mode=optional renegotiate=1" \
"$P_CLI debug_level=3 exchanges=2 renegotiation=1 renegotiate=1" \ "$P_CLI debug_level=3 exchanges=2 renegotiation=1 renegotiate=1" \