Treat failure to parse certificates as SSL protocol errors.

net/data/ssl/scripts/generate-test-certs.sh

 #!/bin/sh
 
 # Copyright 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # This script generates a set of test (end-entity, intermediate, root)
 # certificates that can be used to test fetching of an intermediate via AIA.
 
 try() {
@@ skipping 89 matching lines @@
 
 CA_COMMON_NAME="Test Root CA" \
   try openssl ca \
     -batch \
     -extensions user_cert \
     -days 3650 \
     -in out/localhost_cert.req \
     -out out/localhost_cert.pem \
     -config ca.cnf
 
+CA_COMMON_NAME="Test Root CA" \
+  try openssl ca \
+    -batch \
+    -extensions user_cert \
+    -subj "/CN=Leaf Certificate/" \
+    -startdate 00010101000000Z \
+    -enddate   00010101000000Z \
+    -in out/ok_cert.req \
+    -out out/bad_validity.pem \
+    -config ca.cnf
+
 try /bin/sh -c "cat out/ok_cert.key out/ok_cert.pem \
     > ../certificates/ok_cert.pem"
 try /bin/sh -c "cat out/localhost_cert.key out/localhost_cert.pem \
     > ../certificates/localhost_cert.pem"
 try /bin/sh -c "cat out/expired_cert.key out/expired_cert.pem \
     > ../certificates/expired_cert.pem"
 try /bin/sh -c "cat out/2048-sha256-root.key out/2048-sha256-root.pem \
     > ../certificates/root_ca_cert.pem"
 try /bin/sh -c "cat out/ok_cert.key out/name_constraint_bad.pem \
     > ../certificates/name_constraint_bad.pem"
 try /bin/sh -c "cat out/ok_cert.key out/name_constraint_good.pem \
     > ../certificates/name_constraint_good.pem"
+try /bin/sh -c "cat out/ok_cert.key out/bad_validity.pem \
+    > ../certificates/bad_validity.pem"
 
 # Now generate the one-off certs
 ## SHA-256 general test cert
 try openssl req -x509 -days 3650 \
     -config ../scripts/ee.cnf -newkey rsa:2048 -text \
     -sha256 \
     -out ../certificates/sha256.pem
 
 ## Self-signed cert for SPDY/QUIC/HTTP2 pooling testing
 try openssl req -x509 -days 3650 -extensions req_spdy_pooling \
@@ skipping 174 matching lines @@
 ## Block a leaf cert by issuer-hash-and-serial. However, this will be issued
 ## from an intermediate CA issued underneath a root.
 try python crlsetutil.py -o ../certificates/crlset_by_intermediate_serial.raw \
 <<CRLSETBYINTERMEDIATESERIAL
 {
   "BlockedByHash": {
     "../certificates/quic_intermediate.crt": [3]
   }
 }
 CRLSETBYINTERMEDIATESERIAL