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-rw-r--r--security/manager/ssl/tests/unit/test_content_signing.js431
-rw-r--r--security/manager/ssl/tests/unit/test_content_signing/content_signing_int.pem18
-rw-r--r--security/manager/ssl/tests/unit/test_content_signing/content_signing_int.pem.certspec4
-rw-r--r--security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_RSA_ee.pem18
-rw-r--r--security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_RSA_ee.pem.certspec4
-rw-r--r--security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_ee.pem15
-rw-r--r--security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_ee.pem.certspec5
-rw-r--r--security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_ee_expired.pem15
-rw-r--r--security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_ee_expired.pem.certspec6
-rw-r--r--security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_ee_not_valid_yet.pem15
-rw-r--r--security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_ee_not_valid_yet.pem.certspec6
-rw-r--r--security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_no_SAN_ee.pem14
-rw-r--r--security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_no_SAN_ee.pem.certspec4
-rw-r--r--security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_wrong_key_ee.pem14
-rw-r--r--security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_wrong_key_ee.pem.certspec5
-rw-r--r--security/manager/ssl/tests/unit/test_content_signing/content_signing_remote_newtab_ee.pem15
-rw-r--r--security/manager/ssl/tests/unit/test_content_signing/content_signing_remote_newtab_ee.pem.certspec5
-rw-r--r--security/manager/ssl/tests/unit/test_content_signing/pysign.py36
-rw-r--r--security/manager/ssl/tests/unit/test_content_signing/test.txt1
-rw-r--r--security/manager/ssl/tests/unit/test_content_signing/test.txt.signature1
20 files changed, 632 insertions, 0 deletions
diff --git a/security/manager/ssl/tests/unit/test_content_signing.js b/security/manager/ssl/tests/unit/test_content_signing.js
new file mode 100644
index 0000000000..7e96ea2df6
--- /dev/null
+++ b/security/manager/ssl/tests/unit/test_content_signing.js
@@ -0,0 +1,431 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+"use strict";
+
+// These tests ensure content signatures are working correctly.
+
+const TEST_DATA_DIR = "test_content_signing/";
+
+const ONECRL_NAME = "oneCRL-signer.mozilla.org";
+const ABOUT_NEWTAB_NAME = "remotenewtab.content-signature.mozilla.org";
+var VERIFICATION_HISTOGRAM = Services.telemetry.getHistogramById(
+ "CONTENT_SIGNATURE_VERIFICATION_STATUS"
+);
+var ERROR_HISTOGRAM = Services.telemetry.getKeyedHistogramById(
+ "CONTENT_SIGNATURE_VERIFICATION_ERRORS"
+);
+
+function getSignatureVerifier() {
+ return Cc["@mozilla.org/security/contentsignatureverifier;1"].getService(
+ Ci.nsIContentSignatureVerifier
+ );
+}
+
+function getCertHash(name) {
+ let cert = constructCertFromFile(`test_content_signing/${name}.pem`);
+ return cert.sha256Fingerprint.replace(/:/g, "");
+}
+
+function loadChain(prefix, names) {
+ let chain = [];
+ for (let name of names) {
+ let filename = `${prefix}_${name}.pem`;
+ chain.push(readFile(do_get_file(filename)));
+ }
+ return chain;
+}
+
+function check_telemetry(expected_index, expected, expectedId) {
+ for (let i = 0; i < 10; i++) {
+ let expected_value = 0;
+ if (i == expected_index) {
+ expected_value = expected;
+ }
+ let errorSnapshot = ERROR_HISTOGRAM.snapshot();
+ for (let k in errorSnapshot) {
+ // We clear the histogram every time so there should be only this one
+ // category.
+ equal(k, expectedId);
+ equal(errorSnapshot[k].values[i] || 0, expected_value);
+ }
+ equal(
+ VERIFICATION_HISTOGRAM.snapshot().values[i] || 0,
+ expected_value,
+ "count " +
+ i +
+ ": " +
+ VERIFICATION_HISTOGRAM.snapshot().values[i] +
+ " expected " +
+ expected_value
+ );
+ }
+ VERIFICATION_HISTOGRAM.clear();
+ ERROR_HISTOGRAM.clear();
+}
+
+add_task(async function run_test() {
+ // set up some data
+ const DATA = readFile(do_get_file(TEST_DATA_DIR + "test.txt"));
+ const GOOD_SIGNATURE =
+ "p384ecdsa=" +
+ readFile(do_get_file(TEST_DATA_DIR + "test.txt.signature")).trim();
+
+ const BAD_SIGNATURE =
+ "p384ecdsa=WqRXFQ7tnlVufpg7A-ZavXvWd2Zln0o4woHBy26C2r" +
+ "UWM4GJke4pE8ecHiXoi-7KnZXty6Pe3s4o3yAIyKDP9jUC52Ek1G" +
+ "q25j_X703nP5rk5gM1qz5Fe-qCWakPPl6L";
+
+ let remoteNewTabChain = loadChain(TEST_DATA_DIR + "content_signing", [
+ "remote_newtab_ee",
+ "int",
+ ]);
+
+ let oneCRLChain = loadChain(TEST_DATA_DIR + "content_signing", [
+ "onecrl_ee",
+ "int",
+ ]);
+
+ let oneCRLBadKeyChain = loadChain(TEST_DATA_DIR + "content_signing", [
+ "onecrl_wrong_key_ee",
+ "int",
+ ]);
+
+ let noSANChain = loadChain(TEST_DATA_DIR + "content_signing", [
+ "onecrl_no_SAN_ee",
+ "int",
+ ]);
+
+ let expiredOneCRLChain = loadChain(TEST_DATA_DIR + "content_signing", [
+ "onecrl_ee_expired",
+ "int",
+ ]);
+
+ let notValidYetOneCRLChain = loadChain(TEST_DATA_DIR + "content_signing", [
+ "onecrl_ee_not_valid_yet",
+ "int",
+ ]);
+
+ // Check signature verification works without throwing when using the wrong
+ // root
+ VERIFICATION_HISTOGRAM.clear();
+ let chain1 = oneCRLChain.join("\n");
+ let verifier = getSignatureVerifier();
+ ok(
+ !(await verifier.asyncVerifyContentSignature(
+ DATA,
+ GOOD_SIGNATURE,
+ chain1,
+ ONECRL_NAME,
+ Ci.nsIContentSignatureVerifier.ContentSignatureProdRoot
+ )),
+ "using the wrong root, signatures should fail to verify but not throw."
+ );
+ // Check for generic chain building error.
+ check_telemetry(6, 1, getCertHash("content_signing_onecrl_ee"));
+
+ // Check good signatures from good certificates with the correct SAN
+ ok(
+ await verifier.asyncVerifyContentSignature(
+ DATA,
+ GOOD_SIGNATURE,
+ chain1,
+ ONECRL_NAME,
+ Ci.nsIX509CertDB.AppXPCShellRoot
+ ),
+ "A OneCRL signature should verify with the OneCRL chain"
+ );
+ let chain2 = remoteNewTabChain.join("\n");
+ ok(
+ await verifier.asyncVerifyContentSignature(
+ DATA,
+ GOOD_SIGNATURE,
+ chain2,
+ ABOUT_NEWTAB_NAME,
+ Ci.nsIX509CertDB.AppXPCShellRoot
+ ),
+ "A newtab signature should verify with the newtab chain"
+ );
+ // Check for valid signature
+ check_telemetry(0, 2, getCertHash("content_signing_remote_newtab_ee"));
+
+ // Check a bad signature when a good chain is provided
+ chain1 = oneCRLChain.join("\n");
+ ok(
+ !(await verifier.asyncVerifyContentSignature(
+ DATA,
+ BAD_SIGNATURE,
+ chain1,
+ ONECRL_NAME,
+ Ci.nsIX509CertDB.AppXPCShellRoot
+ )),
+ "A bad signature should not verify"
+ );
+ // Check for invalid signature
+ check_telemetry(1, 1, getCertHash("content_signing_onecrl_ee"));
+
+ // Check a good signature from cert with good SAN but a different key than the
+ // one used to create the signature
+ let badKeyChain = oneCRLBadKeyChain.join("\n");
+ ok(
+ !(await verifier.asyncVerifyContentSignature(
+ DATA,
+ GOOD_SIGNATURE,
+ badKeyChain,
+ ONECRL_NAME,
+ Ci.nsIX509CertDB.AppXPCShellRoot
+ )),
+ "A signature should not verify if the signing key is wrong"
+ );
+ // Check for wrong key in cert.
+ check_telemetry(9, 1, getCertHash("content_signing_onecrl_wrong_key_ee"));
+
+ // Check a good signature from cert with good SAN but a different key than the
+ // one used to create the signature (this time, an RSA key)
+ let rsaKeyChain = oneCRLBadKeyChain.join("\n");
+ ok(
+ !(await verifier.asyncVerifyContentSignature(
+ DATA,
+ GOOD_SIGNATURE,
+ rsaKeyChain,
+ ONECRL_NAME,
+ Ci.nsIX509CertDB.AppXPCShellRoot
+ )),
+ "A signature should not verify if the signing key is wrong (RSA)"
+ );
+ // Check for wrong key in cert.
+ check_telemetry(9, 1, getCertHash("content_signing_onecrl_wrong_key_ee"));
+
+ // Check a good signature from cert with good SAN but with no path to root
+ let missingInt = [oneCRLChain[0], oneCRLChain[2]].join("\n");
+ ok(
+ !(await verifier.asyncVerifyContentSignature(
+ DATA,
+ GOOD_SIGNATURE,
+ missingInt,
+ ONECRL_NAME,
+ Ci.nsIX509CertDB.AppXPCShellRoot
+ )),
+ "A signature should not verify if the chain is incomplete (missing int)"
+ );
+ // Check for generic chain building error.
+ check_telemetry(6, 1, getCertHash("content_signing_onecrl_ee"));
+
+ // Check good signatures from good certificates with the wrong SANs
+ chain1 = oneCRLChain.join("\n");
+ ok(
+ !(await verifier.asyncVerifyContentSignature(
+ DATA,
+ GOOD_SIGNATURE,
+ chain1,
+ ABOUT_NEWTAB_NAME,
+ Ci.nsIX509CertDB.AppXPCShellRoot
+ )),
+ "A OneCRL signature should not verify if we require the newtab SAN"
+ );
+ // Check for invalid EE cert.
+ check_telemetry(7, 1, getCertHash("content_signing_onecrl_ee"));
+
+ chain2 = remoteNewTabChain.join("\n");
+ ok(
+ !(await verifier.asyncVerifyContentSignature(
+ DATA,
+ GOOD_SIGNATURE,
+ chain2,
+ ONECRL_NAME,
+ Ci.nsIX509CertDB.AppXPCShellRoot
+ )),
+ "A newtab signature should not verify if we require the OneCRL SAN"
+ );
+ // Check for invalid EE cert.
+ check_telemetry(7, 1, getCertHash("content_signing_remote_newtab_ee"));
+
+ // Check good signatures with good chains with some other invalid names
+ ok(
+ !(await verifier.asyncVerifyContentSignature(
+ DATA,
+ GOOD_SIGNATURE,
+ chain1,
+ "",
+ Ci.nsIX509CertDB.AppXPCShellRoot
+ )),
+ "A signature should not verify if the SANs do not match an empty name"
+ );
+ // Check for invalid EE cert.
+ check_telemetry(7, 1, getCertHash("content_signing_onecrl_ee"));
+
+ // Test expired certificate.
+ let chainExpired = expiredOneCRLChain.join("\n");
+ ok(
+ !(await verifier.asyncVerifyContentSignature(
+ DATA,
+ GOOD_SIGNATURE,
+ chainExpired,
+ "",
+ Ci.nsIX509CertDB.AppXPCShellRoot
+ )),
+ "A signature should not verify if the signing certificate is expired"
+ );
+ // Check for expired cert.
+ check_telemetry(4, 1, getCertHash("content_signing_onecrl_ee_expired"));
+
+ // Test not valid yet certificate.
+ let chainNotValidYet = notValidYetOneCRLChain.join("\n");
+ ok(
+ !(await verifier.asyncVerifyContentSignature(
+ DATA,
+ GOOD_SIGNATURE,
+ chainNotValidYet,
+ "",
+ Ci.nsIX509CertDB.AppXPCShellRoot
+ )),
+ "A signature should not verify if the signing certificate is not valid yet"
+ );
+ // Check for not yet valid cert.
+ check_telemetry(5, 1, getCertHash("content_signing_onecrl_ee_not_valid_yet"));
+
+ let relatedName = "subdomain." + ONECRL_NAME;
+ ok(
+ !(await verifier.asyncVerifyContentSignature(
+ DATA,
+ GOOD_SIGNATURE,
+ chain1,
+ relatedName,
+ Ci.nsIX509CertDB.AppXPCShellRoot
+ )),
+ "A signature should not verify if the SANs do not match a related name"
+ );
+
+ let randomName =
+ "\xb1\x9bU\x1c\xae\xaa3\x19H\xdb\xed\xa1\xa1\xe0\x81\xfb" +
+ "\xb2\x8f\x1cP\xe5\x8b\x9c\xc2s\xd3\x1f\x8e\xbbN";
+ ok(
+ !(await verifier.asyncVerifyContentSignature(
+ DATA,
+ GOOD_SIGNATURE,
+ chain1,
+ randomName,
+ Ci.nsIX509CertDB.AppXPCShellRoot
+ )),
+ "A signature should not verify if the SANs do not match a random name"
+ );
+
+ // check good signatures with chains that have strange or missing SANs
+ chain1 = noSANChain.join("\n");
+ ok(
+ !(await verifier.asyncVerifyContentSignature(
+ DATA,
+ GOOD_SIGNATURE,
+ chain1,
+ ONECRL_NAME,
+ Ci.nsIX509CertDB.AppXPCShellRoot
+ )),
+ "A signature should not verify if the SANs do not match a supplied name"
+ );
+
+ // Check malformed signature data
+ chain1 = oneCRLChain.join("\n");
+ let bad_signatures = [
+ // wrong length
+ "p384ecdsa=WqRXFQ7tnlVufpg7A-ZavXvWd2Zln0o4woHBy26C2rUWM4GJke4pE8ecHiXoi-" +
+ "7KnZXty6Pe3s4o3yAIyKDP9jUC52Ek1Gq25j_X703nP5rk5gM1qz5Fe-qCWakPPl6L==",
+ // incorrectly encoded
+ "p384ecdsa='WqRXFQ7tnlVufpg7A-ZavXvWd2Zln0o4woHBy26C2rUWM4GJke4pE8ecHiXoi" +
+ "-7KnZXty6Pe3s4o3yAIyKDP9jUC52Ek1Gq25j_X703nP5rk5gM1qz5Fe-qCWakPPl6L=",
+ // missing directive
+ "other_directive=WqRXFQ7tnlVufpg7A-ZavXvWd2Zln0o4woHBy26C2rUWM4GJke4pE8ec" +
+ "HiXoi-7KnZXty6Pe3s4o3yAIyKDP9jUC52Ek1Gq25j_X703nP5rk5gM1qz5Fe-qCWakPPl6L",
+ // actually sha256 with RSA
+ "p384ecdsa=XS_jiQsS5qlzQyUKaA1nAnQn_OvxhvDfKybflB8Xe5gNH1wNmPGK1qN-jpeTfK" +
+ "6ob3l3gCTXrsMnOXMeht0kPP3wLfVgXbuuO135pQnsv0c-ltRMWLe56Cm4S4Z6E7WWKLPWaj" +
+ "jhAcG5dZxjffP9g7tuPP4lTUJztyc4d1z_zQZakEG7R0vN7P5_CaX9MiMzP4R7nC3H4Ba6yi" +
+ "yjlGvsZwJ_C5zDQzWWs95czUbMzbDScEZ_7AWnidw91jZn-fUK3xLb6m-Zb_b4GAqZ-vnXIf" +
+ "LpLB1Nzal42BQZn7i4rhAldYdcVvy7rOMlsTUb5Zz6vpVW9LCT9lMJ7Sq1xbU-0g==",
+ ];
+ for (let badSig of bad_signatures) {
+ await Assert.rejects(
+ verifier.asyncVerifyContentSignature(
+ DATA,
+ badSig,
+ chain1,
+ ONECRL_NAME,
+ Ci.nsIX509CertDB.AppXPCShellRoot
+ ),
+ /NS_ERROR/,
+ `Bad or malformed signature "${badSig}" should be rejected`
+ );
+ }
+
+ // Check malformed and missing certificate chain data
+ let chainSuffix = [oneCRLChain[1], oneCRLChain[2]].join("\n");
+ let badChains = [
+ // no data
+ "",
+ // completely wrong data
+ "blah blah \n blah",
+ ];
+
+ let badSections = [
+ // data that looks like PEM but isn't
+ "-----BEGIN CERTIFICATE-----\nBSsPRlYp5+gaFMRIczwUzaioRfteCjr94xyz0g==\n",
+ // data that will start to parse but won't base64decode
+ "-----BEGIN CERTIFICATE-----\nnon-base64-stuff\n-----END CERTIFICATE-----",
+ // data with garbage outside of PEM sections
+ "this data is garbage\n-----BEGIN CERTIFICATE-----\nnon-base64-stuff\n" +
+ "-----END CERTIFICATE-----",
+ ];
+
+ for (let badSection of badSections) {
+ // ensure we test each bad section on its own...
+ badChains.push(badSection);
+ // ... and as part of a chain with good certificates
+ badChains.push(badSection + "\n" + chainSuffix);
+ }
+
+ for (let badChain of badChains) {
+ await Assert.rejects(
+ verifier.asyncVerifyContentSignature(
+ DATA,
+ GOOD_SIGNATURE,
+ badChain,
+ ONECRL_NAME,
+ Ci.nsIX509CertDB.AppXPCShellRoot
+ ),
+ /NS_ERROR/,
+ `Bad chain data starting "${badChain.substring(0, 80)}" ` +
+ "should be rejected"
+ );
+ }
+
+ ok(
+ !(await verifier.asyncVerifyContentSignature(
+ DATA + "appended data",
+ GOOD_SIGNATURE,
+ chain1,
+ ONECRL_NAME,
+ Ci.nsIX509CertDB.AppXPCShellRoot
+ )),
+ "A good signature should not verify if the data is tampered with (append)"
+ );
+ ok(
+ !(await verifier.asyncVerifyContentSignature(
+ "prefixed data" + DATA,
+ GOOD_SIGNATURE,
+ chain1,
+ ONECRL_NAME,
+ Ci.nsIX509CertDB.AppXPCShellRoot
+ )),
+ "A good signature should not verify if the data is tampered with (prefix)"
+ );
+ ok(
+ !(await verifier.asyncVerifyContentSignature(
+ DATA.replace(/e/g, "i"),
+ GOOD_SIGNATURE,
+ chain1,
+ ONECRL_NAME,
+ Ci.nsIX509CertDB.AppXPCShellRoot
+ )),
+ "A good signature should not verify if the data is tampered with (modify)"
+ );
+});
diff --git a/security/manager/ssl/tests/unit/test_content_signing/content_signing_int.pem b/security/manager/ssl/tests/unit/test_content_signing/content_signing_int.pem
new file mode 100644
index 0000000000..d615eccf22
--- /dev/null
+++ b/security/manager/ssl/tests/unit/test_content_signing/content_signing_int.pem
@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE-----
+MIIC8TCCAdmgAwIBAgIUNZb51bNpKyzQtWTCj5zrdME7cKYwDQYJKoZIhvcNAQEL
+BQAwKTEnMCUGA1UEAwweeHBjc2hlbGwgc2lnbmVkIGFwcHMgdGVzdCByb290MCIY
+DzIwMjExMTI3MDAwMDAwWhgPMjAyNDAyMDUwMDAwMDBaMBExDzANBgNVBAMMBmlu
+dC1DQTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBALqIUahEjhbWQf1u
+togGNhA9PBPZ6uQ1SrTs9WhXbCR7wcclqODYH72xnAabbhqG8mvir1p1a2pkcQh6
+pVqnRYf3HNUknAJ+zUP8HmnQOCApk6sgw0nk27lMwmtsDu0Vgg/xfq1pGrHTAjqL
+KkHup3DgDw2N/WYLK7AkkqR9uYhheZCxV5A90jvF4LhIH6g304hD7ycW2FW3Zlqq
+fgKQLzp7EIAGJMwcbJetlmFbt+KWEsB1MaMMkd20yvf8rR0l0wnvuRcOp2jhs3sv
+Im9p47SKlWEd7ibWJZ2rkQhONsscJAQsvxaLL+Xxj5kXMbiz/kkj+nJRxDHVA6za
+GAo17Y0CAwEAAaMlMCMwDAYDVR0TBAUwAwEB/zATBgNVHSUEDDAKBggrBgEFBQcD
+AzANBgkqhkiG9w0BAQsFAAOCAQEAefvKJnF/4qRY9sf/jYCPhWyngBx6JhWFJKiy
+IUHmejn9q/LUX3nskHXA4gAt+KF9hfk9Nx5naL5DaYOkvETawdrSw55Hvphi4MB2
+yHManuj+yplqr8rtDh8Tb2Wm/AeiBqKMTa4AFN9xPbKOrUAVgU+VsXlEIUmOzEI+
+E0HeeIoPCCa6vWPpwhKb4LUlVupe3toJHVbFSp2KcD4gCRsgK60lyqZBosAG8Sat
+Vk7XLPv152/jl7j+pYqnlwabF/LEyVSqegVvvr481kgX8RyEjiPx2wNYYqUF3CPG
+SE2lDXWy629KUGwTH9rUpayMqbfL5bQ9fSGA5vE9pT7vlbBaRg==
+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/unit/test_content_signing/content_signing_int.pem.certspec b/security/manager/ssl/tests/unit/test_content_signing/content_signing_int.pem.certspec
new file mode 100644
index 0000000000..fc9dfd47ae
--- /dev/null
+++ b/security/manager/ssl/tests/unit/test_content_signing/content_signing_int.pem.certspec
@@ -0,0 +1,4 @@
+issuer:xpcshell signed apps test root
+subject:int-CA
+extension:basicConstraints:cA,
+extension:extKeyUsage:codeSigning
diff --git a/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_RSA_ee.pem b/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_RSA_ee.pem
new file mode 100644
index 0000000000..041fa0ebc1
--- /dev/null
+++ b/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_RSA_ee.pem
@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE-----
+MIIC8TCCAdmgAwIBAgIUfVErdg1uvVM/D2oapMLb9gSeabswDQYJKoZIhvcNAQEL
+BQAwETEPMA0GA1UEAwwGaW50LUNBMCIYDzIwMjExMTI3MDAwMDAwWhgPMjAyNDAy
+MDUwMDAwMDBaMBExDzANBgNVBAMMBmVlLVJTQTCCASIwDQYJKoZIhvcNAQEBBQAD
+ggEPADCCAQoCggEBALqIUahEjhbWQf1utogGNhA9PBPZ6uQ1SrTs9WhXbCR7wccl
+qODYH72xnAabbhqG8mvir1p1a2pkcQh6pVqnRYf3HNUknAJ+zUP8HmnQOCApk6sg
+w0nk27lMwmtsDu0Vgg/xfq1pGrHTAjqLKkHup3DgDw2N/WYLK7AkkqR9uYhheZCx
+V5A90jvF4LhIH6g304hD7ycW2FW3ZlqqfgKQLzp7EIAGJMwcbJetlmFbt+KWEsB1
+MaMMkd20yvf8rR0l0wnvuRcOp2jhs3svIm9p47SKlWEd7ibWJZ2rkQhONsscJAQs
+vxaLL+Xxj5kXMbiz/kkj+nJRxDHVA6zaGAo17Y0CAwEAAaM9MDswEwYDVR0lBAww
+CgYIKwYBBQUHAwMwJAYDVR0RBB0wG4IZb25lQ1JMLXNpZ25lci5tb3ppbGxhLm9y
+ZzANBgkqhkiG9w0BAQsFAAOCAQEAOLPmVQpsFu7rL6Tc6TUQdS1/wnBDZeO3Q8uq
+x7FSm7tyvrMwCx2pGGJATWIdH33amhRDe3fH5IB7dvFiQx0qDewROnE900ooOQCu
+dsjKDzYurpGmlpYsBHtdFz8tEVgN2CUzfFLRTrJK0wAio5OqbyuZQwb8QBl/HMyk
+aqG33hm/1t8gR7NLn4c03XtaK/xbBGC07aCijsWTj09UB5wgtB12p9Wt7IWrkh2B
+9omSirPYgCWaD0wWJP1d1PlheeNeOYweNbEncjQlH+ukYjMzzZ3IVm7zFN1kit/W
+M7enx5fdED/84092ZzuDheLYKaA63ysJhQvCCzOovWr0PuOnLg==
+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_RSA_ee.pem.certspec b/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_RSA_ee.pem.certspec
new file mode 100644
index 0000000000..7b2a02bdaf
--- /dev/null
+++ b/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_RSA_ee.pem.certspec
@@ -0,0 +1,4 @@
+issuer:int-CA
+subject:ee-RSA
+extension:extKeyUsage:codeSigning
+extension:subjectAlternativeName:oneCRL-signer.mozilla.org
diff --git a/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_ee.pem b/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_ee.pem
new file mode 100644
index 0000000000..6f15597b6a
--- /dev/null
+++ b/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_ee.pem
@@ -0,0 +1,15 @@
+-----BEGIN CERTIFICATE-----
+MIICPzCCASegAwIBAgIUSRecknZ3alfumVeo6yV/3O5nvrswDQYJKoZIhvcNAQEL
+BQAwETEPMA0GA1UEAwwGaW50LUNBMCIYDzIwMjExMTI3MDAwMDAwWhgPMjAyNDAy
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+bmVyLm1vemlsbGEub3JnMA0GCSqGSIb3DQEBCwUAA4IBAQBElZXLzQGRPdygDJ33
+2LuNJiDU8lFXdDulPXcZAQjVXo5gy9XQfMtbTLzf07dpPuQntzJNbGuS4ypboEal
+ixi2jYZHy/Q3CCxFk8jWi18auKES+uRF6qI3PK9RsXXxm7Xt0vk9akYwmmnuAJl9
+eYTCNZ0VaXANvv5GjuFczMHF08XTW1j2x81s0epmblgagcaMIcaq5nKSNuFt/2j/
+hXtGzNfI1njHIT8X6Fp4QeGqQiSlW90WVPoDPxfUHh8VvE/9Y0fnnHcDwGICb7LH
+on1mz76mcXNwOgA+dBmHKS/5t7/PBT/F7+UuORfYdoFKrnc7npVYhQmH06ENKHMS
+9Bmv
+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_ee.pem.certspec b/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_ee.pem.certspec
new file mode 100644
index 0000000000..ab22807b9e
--- /dev/null
+++ b/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_ee.pem.certspec
@@ -0,0 +1,5 @@
+issuer:int-CA
+subject:ee
+subjectKey:secp384r1
+extension:extKeyUsage:codeSigning
+extension:subjectAlternativeName:oneCRL-signer.mozilla.org
diff --git a/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_ee_expired.pem b/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_ee_expired.pem
new file mode 100644
index 0000000000..ef22669f4d
--- /dev/null
+++ b/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_ee_expired.pem
@@ -0,0 +1,15 @@
+-----BEGIN CERTIFICATE-----
+MIICTjCCATagAwIBAgIUOQNrYQz01j0SirgoHMLKbtGL9RowDQYJKoZIhvcNAQEL
+BQAwETEPMA0GA1UEAwwGaW50LUNBMCIYDzIwMTMwMTAxMDAwMDAwWhgPMjAxNDAx
+MDEwMDAwMDBaMBwxGjAYBgNVBAMMEWVlLWludC1DQS1leHBpcmVkMHYwEAYHKoZI
+zj0CAQYFK4EEACIDYgAEoWhyQzYrXHsYifN5FUYVocc/tI3uhj4CKRXbYI4lLeS3
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+yZEPKfPSP2o8J0eSUgvXdVOxU1fNRuocsVfXUlveq5x10ddjXBT9X4AY1mtR7HJw
+hl/7269N8b4itfrfvZmCBToJayjv0I2N84bqjpOnXJ/iB5YVdk8oZIJDXWi4SR3B
+E9IejwA1fikpt++RjpJSZ1BSNU7FfiyGGUonxHDoP/29znaOJnpAqaH5LVJCRkfN
+H12vePBbunZd+ay5r+mMJPaXR+V2sY8OaOfcrPSHQLa8Eb/EEhBuITMKkOucohjx
+zqvM6S2iOI9GbwHClybEHRO7
+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_ee_expired.pem.certspec b/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_ee_expired.pem.certspec
new file mode 100644
index 0000000000..48fd9c8cc7
--- /dev/null
+++ b/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_ee_expired.pem.certspec
@@ -0,0 +1,6 @@
+issuer:int-CA
+subject:ee-int-CA-expired
+subjectKey:secp384r1
+validity:20130101-20140101
+extension:extKeyUsage:codeSigning
+extension:subjectAlternativeName:oneCRL-signer.mozilla.org
diff --git a/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_ee_not_valid_yet.pem b/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_ee_not_valid_yet.pem
new file mode 100644
index 0000000000..6cf5c6a312
--- /dev/null
+++ b/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_ee_not_valid_yet.pem
@@ -0,0 +1,15 @@
+-----BEGIN CERTIFICATE-----
+MIICVDCCATygAwIBAgIUbV+rBAfhGRv/bU22A92xneoAy3owDQYJKoZIhvcNAQEL
+BQAwETEPMA0GA1UEAwwGaW50LUNBMCIYDzIwNTAwMTAxMDAwMDAwWhgPMjA1MTAx
+MDEwMDAwMDBaMCIxIDAeBgNVBAMMF2VlLWludC1DQS1ub3QteWV0LXZhbGlkMHYw
+EAYHKoZIzj0CAQYFK4EEACIDYgAEoWhyQzYrXHsYifN5FUYVocc/tI3uhj4CKRXb
+YI4lLeS3Ey2ozpjoMVNOapwMCwnI1jmt6DIG5bqBNHOhH6Mw4F2oyW5Dg/4nhz2p
+cQO+KIjP8ALwWvcaH93Mg3SqbqnOoz0wOzATBgNVHSUEDDAKBggrBgEFBQcDAzAk
+BgNVHREEHTAbghlvbmVDUkwtc2lnbmVyLm1vemlsbGEub3JnMA0GCSqGSIb3DQEB
+CwUAA4IBAQAjXmLNn2kLa/FzNp7F3PqcSXuAO2jT31Y2g4pZnVqCDfMqplsl2ZFn
+oam3wyQnepm3q9DD4BOAW9JFYR3wqnl9cBRNHlSGyjGM4qBpuSD6WxAz7EdFcRO6
+fcA50245fAuB45UJeYJ58QvIBv7AwoBGnqAI7ZDN3eIGopZIL56jiH7vO9WyQPWj
+XZAWrXTG68rEf0RxXRtjUv9coFiuInT8+oyXB3NwK2EbaI5IeR+x3qIDEgNKk+t+
+PlE3NrtaAiK19p0s9RtQQilBKNmo+5irrUq/OD2H1aurDaAXpLTM5vLUpfyN3/qD
+HzuZujaUIeMsRiXsIRDNql1S+nq4oNRy
+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_ee_not_valid_yet.pem.certspec b/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_ee_not_valid_yet.pem.certspec
new file mode 100644
index 0000000000..b2926dfc42
--- /dev/null
+++ b/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_ee_not_valid_yet.pem.certspec
@@ -0,0 +1,6 @@
+issuer:int-CA
+subject:ee-int-CA-not-yet-valid
+subjectKey:secp384r1
+validity:20500101-20510101
+extension:extKeyUsage:codeSigning
+extension:subjectAlternativeName:oneCRL-signer.mozilla.org
diff --git a/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_no_SAN_ee.pem b/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_no_SAN_ee.pem
new file mode 100644
index 0000000000..6c35f2f377
--- /dev/null
+++ b/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_no_SAN_ee.pem
@@ -0,0 +1,14 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_no_SAN_ee.pem.certspec b/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_no_SAN_ee.pem.certspec
new file mode 100644
index 0000000000..4a9b9a3ceb
--- /dev/null
+++ b/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_no_SAN_ee.pem.certspec
@@ -0,0 +1,4 @@
+issuer:int-CA
+subject:ee-no-SAN
+subjectKey:secp384r1
+extension:extKeyUsage:codeSigning
diff --git a/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_wrong_key_ee.pem b/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_wrong_key_ee.pem
new file mode 100644
index 0000000000..d76f4501cb
--- /dev/null
+++ b/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_wrong_key_ee.pem
@@ -0,0 +1,14 @@
+-----BEGIN CERTIFICATE-----
+MIICLDCCARSgAwIBAgIUV+E6VhJoKZrnCV22wV/aVW9aglwwDQYJKoZIhvcNAQEL
+BQAwETEPMA0GA1UEAwwGaW50LUNBMCIYDzIwMjExMTI3MDAwMDAwWhgPMjAyNDAy
+MDUwMDAwMDBaMBcxFTATBgNVBAMMDGVlLXdyb25nLWtleTBZMBMGByqGSM49AgEG
+CCqGSM49AwEHA0IABE+/u7th4Pj5saYKWayHBOLsBQtCPjz3LpI/LE95S0VcKmnS
+M0VsNsQRnQcG4A7tyNGTkNeZG3stB6ME6qBKpsCjPTA7MBMGA1UdJQQMMAoGCCsG
+AQUFBwMDMCQGA1UdEQQdMBuCGW9uZUNSTC1zaWduZXIubW96aWxsYS5vcmcwDQYJ
+KoZIhvcNAQELBQADggEBAFOgIZXl0sf1hEH0H5fqGPshlMemqjhFZKPBgLlWl+3W
+wSIcuBPw5GSDkoQOdAxE/iIsLfZoC0PfYdee+twANQ13MMbwP0NmR78qJKLPOO4b
+yWRiQFaIU6fTleU7wSD6tcDtIsKAfTDNF6EiC3czw3XuOiNh4r7A2EJ3GyGuUq7d
+YgpwA5I2s3VjG/2lhRKP06UH/YGCpBTio23NUyzS2NINPhTnrLjyY2IWIp9EiXXj
+d6QRQ8ytp6wU/rI3HAueWOWEQ6dDWR5hfe0Y/QDB0n9hEBgf+lUOtuqpTs/ZK0eM
+HPC6swGdKVnJ1DCcfyzMsDIvGZKUyj8v6E2E7x8AdLk=
+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_wrong_key_ee.pem.certspec b/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_wrong_key_ee.pem.certspec
new file mode 100644
index 0000000000..fbc8e603f4
--- /dev/null
+++ b/security/manager/ssl/tests/unit/test_content_signing/content_signing_onecrl_wrong_key_ee.pem.certspec
@@ -0,0 +1,5 @@
+issuer:int-CA
+subject:ee-wrong-key
+subjectKey:secp256r1
+extension:extKeyUsage:codeSigning
+extension:subjectAlternativeName:oneCRL-signer.mozilla.org
diff --git a/security/manager/ssl/tests/unit/test_content_signing/content_signing_remote_newtab_ee.pem b/security/manager/ssl/tests/unit/test_content_signing/content_signing_remote_newtab_ee.pem
new file mode 100644
index 0000000000..b2e7d3cdbb
--- /dev/null
+++ b/security/manager/ssl/tests/unit/test_content_signing/content_signing_remote_newtab_ee.pem
@@ -0,0 +1,15 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/security/manager/ssl/tests/unit/test_content_signing/content_signing_remote_newtab_ee.pem.certspec b/security/manager/ssl/tests/unit/test_content_signing/content_signing_remote_newtab_ee.pem.certspec
new file mode 100644
index 0000000000..81e1eefe1d
--- /dev/null
+++ b/security/manager/ssl/tests/unit/test_content_signing/content_signing_remote_newtab_ee.pem.certspec
@@ -0,0 +1,5 @@
+issuer:int-CA
+subject:ee
+subjectKey:secp384r1
+extension:extKeyUsage:codeSigning
+extension:subjectAlternativeName:remotenewtab.content-signature.mozilla.org
diff --git a/security/manager/ssl/tests/unit/test_content_signing/pysign.py b/security/manager/ssl/tests/unit/test_content_signing/pysign.py
new file mode 100644
index 0000000000..23c6128aa2
--- /dev/null
+++ b/security/manager/ssl/tests/unit/test_content_signing/pysign.py
@@ -0,0 +1,36 @@
+#!/usr/bin/env python
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+"""
+Create an ECDSA signature on the P-384 curve using the SHA-384 hash of data from
+stdin. The key used for the signature is the secp384r1Encoded key used in pykey
+and pycert.
+
+The certificates for the content signature tests make use of this program.
+You can use pysign.py like this:
+
+cat test.txt | python pysign.py > test.txt.signature
+"""
+
+import base64
+import binascii
+import hashlib
+import pathlib
+import six
+import sys
+
+import ecdsa
+
+# For pykey, find the relative file location and add it to path
+toolsDir = (pathlib.Path(__file__).parents[4] / "tools").resolve()
+sys.path.append(str(toolsDir))
+import pykey
+
+data = sys.stdin.buffer.read()
+
+key = pykey.ECCKey("secp384r1")
+sig = key.signRaw(b"Content-Signature:\00" + data, pykey.HASH_SHA384)
+print(str(base64.b64encode(sig)).replace("+", "-").replace("/", "_"))
diff --git a/security/manager/ssl/tests/unit/test_content_signing/test.txt b/security/manager/ssl/tests/unit/test_content_signing/test.txt
new file mode 100644
index 0000000000..2daac1cb00
--- /dev/null
+++ b/security/manager/ssl/tests/unit/test_content_signing/test.txt
@@ -0,0 +1 @@
+This is a test file to test content-signature verification with a PKI.
diff --git a/security/manager/ssl/tests/unit/test_content_signing/test.txt.signature b/security/manager/ssl/tests/unit/test_content_signing/test.txt.signature
new file mode 100644
index 0000000000..e613981473
--- /dev/null
+++ b/security/manager/ssl/tests/unit/test_content_signing/test.txt.signature
@@ -0,0 +1 @@
+hSvmvvA7_QLedDsjRJGBevqLwjPILx1EtWSPP4A0fepaWWPuuZRB8VfDT2j07bKDacRsbmJjmvg_R4CpKmnoWF8-2w5lSszlFFDqYSvQVQxpKhu-HMM_qquu_l0KecQ2