4 ms·
If they’re using pure MD5 such that collisions work, then using steganography techniques to embed random bytes encrypted with some obvious cipher will bypass th
by floatingatoll 6y ago
If they’re using pure MD5 such that collisions work, then using steganography techniques to embed random bytes encrypted with some obvious cipher will bypass the initial autocensor while simultaneously driving the Chinese intelligence services crazy trying to decrypt the random bytes in every image sent. Note that using this approach may cause threat of harm to any sender or recipient within China’s sphere of influence.
- gnur 6y agoOr the other way around: send clean content first, then use a collision for the nasty content.
- floatingatoll 6y agoThat's what they tested in the article.
- bergstromm466 6y agoCould somebody else verify this? Do you have any examples of this technique used elsewhere? I have no domain expertise in this area.