Privacy

32173 readers

328 users here now

A place to discuss privacy and freedom in the digital world.

Privacy has become a very important issue in modern society, with companies and governments constantly abusing their power, more and more people are waking up to the importance of digital privacy.

In this community everyone is welcome to post links and discuss topics related to privacy.

Some Rules

Posting a link to a website containing tracking isn't great, if contents of the website are behind a paywall maybe copy them into the post
Don't promote proprietary software
Try to keep things on topic
If you have a question, please try searching for previous discussions, maybe it has already been answered
Reposts are fine, but should have at least a couple of weeks in between so that the post can reach a new audience
Be nice :)

Related communities

much thanks to @gary_host_laptop for the logo design :)

founded 5 years ago

MODERATORS

[email protected]

159

Quantum Resistance and the Signal Protocol (signal.org)

submitted 1 year ago* (last edited 1 year ago) by [email protected] to c/[email protected]

20 comments fedilink hide all child comments

We believe that the key encapsulation mechanism we have selected, CRYSTALS-Kyber, is built on solid foundations, but to be safe we do not want to simply replace our existing elliptic curve cryptography foundations with a post-quantum public key cryptosystem. Instead, we are augmenting our existing cryptosystems such that an attacker must break both systems in order to compute the keys protecting people’s communications.

...

Our new protocol is already supported in the latest versions of Signal’s client applications and is in use for chats initiated after both sides of the chat are using the latest Signal software. In the coming months (after sufficient time has passed for everyone using Signal to update), we will disable X3DH for new chats and require PQXDH for all new chats. In parallel, we will roll out software updates to upgrade existing chats to this new protocol.

you are viewing a single comment's thread
view the rest of the comments

[–] Neon 2 points 1 year ago* (last edited 1 year ago) (1 children)

Private =/= anonymous

Signal is amazing

[–] [email protected] 1 points 1 year ago

Anonymity is good but that's not the biggest problem with Signal's reliance on phone numbers. Phone numbers are just not secure and not designed to be authentication credentials. Phone services are vulnerable to a large number of exploits and that's never going to change. Signal has a number of mitigations to try preventing those exploits from hitting people but that's a bandage at best. Reliance on phone numbers is a gigantic weak point in Signal's privacy and security.