For contact discovery, AFAIK no[0]. For everything else: Yes, by setting a randomized long Signal PIN since SGX is effectively used to add entropy to Signal PI

For contact discovery, AFAIK no[0]. For everything else: Yes, by setting a randomized long Signal PIN since SGX is effectively used to add entropy to Signal PINs[1]. You can also disable Signal PINs – in this case Signal will simply set a randomized long PIN for you. [0]: https://signal.org/blog/private-contact-discovery/ https://signal.org/blog/private-contact-discovery/ [1]: https://signal.org/blog/secure-value-recovery/ https://signal.org/blog/secure-value-recovery/