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by collinfunk 168 days ago
Haven't read it since it is down, but based on other comments, it seems to be an issue with cleartext signatures.

I haven't seen those outside of old mailing list archives. Everyone uses detached signatures nowadays, e.g. PGP/MIME for emails.
1 comments
bytehamster 168 days ago
If I understood their first demo correctly, they verified a fedora iso with a detached signature. The booted iso then printed "hello 39c3". https://streaming.media.ccc.de/39c3/relive/1854
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unscaled 168 days ago
It was a cleartext signature, not a detached signature.

Edit: even better. It was both. There is a signature type confusion attack going on here. I still didn't watch the entire thing, but it seems that unlike gpg, they do have to specify --cleartext explicitly for Sequoia, so there is no confusion going on that case.

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