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by yig
1842 days ago
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Can't traceability be implemented with digital signatures? WhatsApp could sign my messages with my encryption key and always forward messages with their original signatures as metadata. Wouldn't that implement traceability? I guess that's the "fingerprint" this article alludes to. I don't see the technical limitation, just a policy one. WhatsApp wouldn't need a centralized store of all messages. |
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