--- /dev/null
+#!/bin/bash
+
+set -e
+
+# Use newly built oqsprovider to test interop with external sites
+
+if [ -z "$OPENSSL_APP" ]; then
+ echo "OPENSSL_APP env var not set. Exiting."
+ exit 1
+fi
+
+if [ -z "$OPENSSL_MODULES" ]; then
+ echo "Warning: OPENSSL_MODULES env var not set."
+fi
+
+# Set OSX DYLD_LIBRARY_PATH if not already externally set
+if [ -z "$DYLD_LIBRARY_PATH" ]; then
+ export DYLD_LIBRARY_PATH=$LD_LIBRARY_PATH
+fi
+
+# We assume the value of env var HTTP_PROXY is "http://host.domain:port_num"
+if [ ! -z "${HTTP_PROXY}" ]; then
+ echo "Using Web proxy \"${HTTP_PROXY}\""
+ export USE_PROXY="-proxy ${HTTP_PROXY#http://} -allow_proxy_certs"
+else
+ export USE_PROXY=""
+fi
+
+# Ascertain algorithms are available:
+
+# skipping these tests for now as per https://mailarchive.ietf.org/arch/msg/tls/hli5ogDbUudAA4tZXskVbOqeor4
+# TBD replace with suitable ML-KEM hybrid tests as and when available XXX
+
+exit 0
+
+echo " Cloudflare:"
+
+if ! ($OPENSSL_APP list -kem-algorithms | grep x25519_kyber768); then
+ echo "Skipping unconfigured x25519_kyber768 interop test"
+else
+ export OQS_CODEPOINT_X25519_KYBER512=65072
+ (echo -e "GET /cdn-cgi/trace HTTP/1.1\nHost: cloudflare.com\n\n"; sleep 1; echo $'\cc') | "${OPENSSL_APP}" s_client ${USE_PROXY} -connect pq.cloudflareresearch.com:443 -groups x25519_kyber768 -servername cloudflare.com -ign_eof 2>/dev/null | grep kex=X25519Kyber768Draft00
+fi
+
+if ! ($OPENSSL_APP list -kem-algorithms | grep x25519_kyber512); then
+ echo "Skipping unconfigured x25519_kyber512 interop test"
+else
+ (echo -e "GET /cdn-cgi/trace HTTP/1.1\nHost: cloudflare.com\n\n"; sleep 1; echo $'\cc') | "${OPENSSL_APP}" s_client ${USE_PROXY} -connect pq.cloudflareresearch.com:443 -groups x25519_kyber512 -servername cloudflare.com -ign_eof 2>/dev/null | grep kex=X25519Kyber512Draft00
+fi
export OQS_PROVIDER_TESTSCRIPTS=$SRCTOP/oqs-provider/scripts
export OPENSSL_CONF=$OQS_PROVIDER_TESTSCRIPTS/openssl-ca.cnf
# Be verbose if harness is verbose:
+# temporarily replace external interop testing
+cp $SRCTOP/test/recipes/95-test_external_oqsprovider_data/oqsprovider-externalinterop.sh $SRCTOP/oqs-provider/scripts/
$SRCTOP/oqs-provider/scripts/runtests.sh -V