I think the crypto in Signal looks fine. The double ratchet isn’t bad, although it has some drawbacks (at least the OMEMO variant) about long-absent participants running out of published ephemeral keys.
The problem with Signal is the centralized system (which relies on absolute trust in a server’s “trusted computing” module) and the business governance. I’m very critical of m0xie and friends in their political/economic decisions, but they seem to produce good cryptography…
Disclaimer: i’m no cryptographer
I think the crypto in Signal looks fine. The double ratchet isn’t bad, although it has some drawbacks (at least the OMEMO variant) about long-absent participants running out of published ephemeral keys.
The problem with Signal is the centralized system (which relies on absolute trust in a server’s “trusted computing” module) and the business governance. I’m very critical of m0xie and friends in their political/economic decisions, but they seem to produce good cryptography…
I was trolling.
I know the direction of the project and their stance against centralisation is debatable but they produce good and reviewed software and libraries.
What you do with it is a personal choice.