> Did they already adopt a proven published alogithm for encryption, or still using a homegrown KGB-Krypt algorithm? Their algorithm itself is proven and publi

> Did they already adopt a proven published alogithm for encryption, or still using a homegrown KGB-Krypt algorithm? Their algorithm itself is proven and published, has been audited multiple times already. It is not as good Double Ratchet in terms of features but security wise, it's solid.