invalid signature when signed message contains another signed message embedded within
I'm not sure if this is expected, but I recently noticed that GPGMail reports invalid signature for signed messages that contain another signed message embedded in. For example:
- send yourself a message with subject test1
- compose a new message to yourself with subject test2
- embed first message into the second message by dragging and dropping it into the body
- send the second message to yourself
- open the message (in your inbox or your sent folder) and note the invalid signature reported
I've attached redacted screenshots showing this behavior in action. I could reproduce it in GPGMail stable 2023.2 on Ventura as well as the latest nightly 2024.1 (3592n) on Sequoia. I also noticed in the latest nightly on Sequoia the invalid signature icon & message are not displayed in the security line like they were in the stable version on Ventura.
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test1.png
50.3 KB
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test2-with-test1-embedded.png
90.5 KB
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invalid-signature-not-shown-in-security-line-on-sequoia.png
64.9 KB
test1.png
test2-with-test1-embedded.png
invalid-signature-not-shown-in-security-line-on-sequoia.png
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