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Already done ~10 years ago, it was TextSecure, the predecessor to Signal. https://en.wikipedia.org/wiki/TextSecure https://en.wikipedia.org/wiki/TextSecure
by parliament32 8y ago
Already done ~10 years ago, it was TextSecure, the predecessor to Signal.
https://en.wikipedia.org/wiki/TextSecure https://en.wikipedia.org/wiki/TextSecure