Geph.io

ParanoiaEgg180 · March 29, 2026, 4:27pm

I saw a few Redditors recommending this and it was apparently popular among the Chinese and Iranians

Is it any good? Been using it for a while

anon25722375 · March 29, 2026, 4:46pm

Never heard of it and never used it.

Are you in one of those countries where this is needed? How can you be sure they don’t keep logs?

ParanoiaEgg180 · March 30, 2026, 1:24am

They claim they don’t keep logs, especially with this:

github.com/geph-official/geph5

libraries/mizaru2/README.md

adf6b98df

## Overview

**Mizaru** is a cryptographic protocol designed to provide **privacy-preserving authentication** in the Geph5 network, using **blind signatures** to protect user anonymity.

In Geph5, Mizaru allows clients to prove they are authenticated without revealing their identity or usage patterns to exit nodes. This means that _even if Geph's servers are compromised_, user identities cannot be linked.

The unifying design goal is for Geph to be as anonymous as an unauthenticated open proxy, despite having user accounts and payments.

Mizaru is inspired by anonymous-credential systems like Privacy Pass, but with these main differences:

- Instead of _one-time_ anonymous credentials, Mizaru anonymous credentials _reusable within 24 hours_. This is because while Privacy Pass is used in a context where we need unlinkability between different requests, Mizaru is used in a context where we want unlinkability between _different days in a user's activity_.
  - This may seem weaker, but VPN sessions last for a long time, and it's generally infeasible to provide unlinkability between different user actions within the same VPN session. Linkability within 24 hours is equivalent to everyone using 24-hour burner accounts, which is not meaningfully less anonymous compared to not having authentication.
- Integer-math cryptographic primitives (FDH-RSA) are used instead of elliptic curves.

---

## Protocol roles

There are three roles involved:

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