2 files changed, 117 insertions, 0 deletions
diff --git a/comm/mailnews/test/data/smime/alice.dsig.SHA256.multipart.mismatch-econtent b/comm/mailnews/test/data/smime/alice.dsig.SHA256.multipart.mismatch-econtent
new file mode 100644
index 0000000000..fbcfc22aeb
--- /dev/null
+++ b/comm/mailnews/test/data/smime/alice.dsig.SHA256.multipart.mismatch-econtent
@@ -0,0 +1,56 @@
+Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="------------ms030903020902020502030404"
+
+This is a cryptographically signed message in MIME format.
+
+--------------ms030903020902020502030404
+Content-Type: text/plain; charset=utf-8; format=flowed
+Content-Transfer-Encoding: quoted-printable
+Content-Language: en-US
+
+This is a FAKE message NOT from Alice to Bob.
+
+--------------ms030903020902020502030404
+Content-Type: application/pkcs7-signature; name=smime.p7s
+Content-Transfer-Encoding: base64
+Content-Disposition: attachment; filename=smime.p7s
+Content-Description: S/MIME Cryptographic Signature
+
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+fDoI7erSDAkAAAAAAAA=
+--------------ms030903020902020502030404--
+
diff --git a/comm/mailnews/test/data/smime/alice.dsig.SHA256.multipart.mismatch-econtent.eml b/comm/mailnews/test/data/smime/alice.dsig.SHA256.multipart.mismatch-econtent.eml
new file mode 100644
index 0000000000..6c6477a64c
--- /dev/null
+++ b/comm/mailnews/test/data/smime/alice.dsig.SHA256.multipart.mismatch-econtent.eml
@@ -0,0 +1,61 @@
+MIME-Version: 1.0
+Date: Tue, 21 Nov 2023 20:50:06 +0000
+From: Alice@example.com
+To: Bob@example.com
+Subject: BAD mismatch-econtent sig.SHA256
+Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="------------ms030903020902020502030404"
+
+This is a cryptographically signed message in MIME format.
+
+--------------ms030903020902020502030404
+Content-Type: text/plain; charset=utf-8; format=flowed
+Content-Transfer-Encoding: quoted-printable
+Content-Language: en-US
+
+This is a FAKE message NOT from Alice to Bob.
+
+--------------ms030903020902020502030404
+Content-Type: application/pkcs7-signature; name=smime.p7s
+Content-Transfer-Encoding: base64
+Content-Disposition: attachment; filename=smime.p7s
+Content-Description: S/MIME Cryptographic Signature
+
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+--------------ms030903020902020502030404--
+