O3.1 Improve Snowflake’s defenses and infrastructure.

This ticket is a placeholder for all the tickets related to the activity 3.1 of objective 3 for project 146.

Use of the Snowflake pluggable transport has exploded over the last year, with much of the use driven by censorship in Russia in early 2022 and then in Iran in September 2022. During this time we’ve made many upgrades to its infrastructure in order to meet demand, but there is more to improve. In this activity, we will first research, develop, and implement defenses for enumeration attacks against Snowflake. These defenses are necessary to protect against a censor trying to grab the IP addresses of all Snowflake proxies and blocking them, thus crippling the system's effectiveness for circumvention.

Deliverable: Defense system for enumeration attacks against Tor Snowflake.

Estimation: 6 months for 2 people at 100% of their time.
Timeline: start on January 2025 and ends on July 2026.

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