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by rakoo
3695 days ago
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> PFS requires synchronicity No it doesn't. Multiple devices is a special case of multiple recipients, which the Signal protocol handles (and I presume Whatsapp does as well). See more details here (https://whispersystems.org/blog/private-groups/) Now, that doesn't mean it already works in Signal/Whatsapp, because they have other constraints. But it's not PFS that prevents it. |
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