1 files changed, 63 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webrtc/protocol/dtls-fingerprint-validation.html b/testing/web-platform/tests/webrtc/protocol/dtls-fingerprint-validation.html
new file mode 100644
index 0000000000..9d1739244d
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+++ b/testing/web-platform/tests/webrtc/protocol/dtls-fingerprint-validation.html
@@ -0,0 +1,63 @@
+<!DOCTYPE html>
+<html>
+<head>
+<title>DTLS fingerprint validation</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="../RTCPeerConnection-helper.js"></script>
+</head>
+<body>
+<script>
+
+function makeZeroFingerprint(algorithm) {
+  const length = algorithm === 'sha-1' ? 160 : parseInt(algorithm.split('-')[1], 10);
+  let zeros = [];
+  for (let i = 0; i < length; i += 8) {
+    zeros.push('00');
+  }
+  return 'a=fingerprint:' + algorithm + ' ' + zeros.join(':');
+}
+
+// Tests that an invalid fingerprint leads to a connectionState 'failed'.
+promise_test(async t => {
+  const pc1 = new RTCPeerConnection();
+  t.add_cleanup(() => pc1.close());
+  const pc2 = new RTCPeerConnection();
+  t.add_cleanup(() => pc2.close());
+  pc1.createDataChannel('datachannel');
+  exchangeIceCandidates(pc1, pc2);
+  await pc1.setLocalDescription();
+  await pc2.setRemoteDescription(pc1.localDescription);
+  const answer = await pc2.createAnswer();
+  await pc1.setRemoteDescription({
+    type: answer.type,
+    sdp: answer.sdp.replace(/a=fingerprint:sha-256 .*/g, makeZeroFingerprint('sha-256')),
+  });
+  await pc2.setLocalDescription(answer);
+
+  await waitForConnectionStateChange(pc1, ['failed']);
+  await waitForConnectionStateChange(pc2, ['failed']);
+}, 'Connection fails if one side provides a wrong DTLS fingerprint');
+
+['sha-1', 'sha-256', 'sha-384', 'sha-512'].forEach(hashFunc => {
+  promise_test(async t => {
+    const pc1 = new RTCPeerConnection();
+    t.add_cleanup(() => pc1.close());
+    const pc2 = new RTCPeerConnection();
+    t.add_cleanup(() => pc2.close());
+    pc1.createDataChannel('datachannel');
+
+    await pc1.setLocalDescription();
+    await pc2.setRemoteDescription(pc1.localDescription);
+    const answer = await pc2.createAnswer();
+    await pc1.setRemoteDescription({
+      type: answer.type,
+      sdp: answer.sdp.replace(/a=fingerprint:sha-256 .*/g, makeZeroFingerprint(hashFunc)),
+    });
+    await pc2.setLocalDescription(answer);
+  }, 'SDP negotiation with a ' + hashFunc + ' fingerprint succeds');
+});
+
+</script>
+</body>
+</html>