SEAS: Secure Email with Asymmetric Cryptography and Steganography

Countries with authoritarian regimes face major challenges from open Internet communications, prompting them to establish and deploy surveillance systems inside their networks. Unfortunately, modern censorship circumvention schemes do not offer high-efficiency assurances to their consumers because censors can quickly detect. They, therefore, interrupt communication belonging to these systems using today's sophisticated censorship technology. Instead, we recommend servicing the Email Tunnels, a highly accessible censorship-resistant infrastructure. It functions by encapsulating a censored user's traffic inside email messages sent through public email services such as Gmail and Yahoo Mail. We deploy a tunneled server to reduce connectivity overhead between webmail servers. We suggest a strategy for implementing safe data sharing through two mail accounts for a single person, each of which can be used for different purposes, namely, alien mail and domestic mail. Both are connected in various forms of communication. This was designed primarily to minimize contact delays. Email traffic would be minimized by routing email via our tunneled portal. We can also send emails to blocked addresses. Also, through censorship circumvention, computer transfers cannot be leaked with the assistance of an alien mail server since the data would be encrypted using an effective RSA algorithm. Similarly, in domestic mail, the sensor would not recognize tunneled messages from their receiver areas. Furthermore, using steganography/encryption to embed tunneled data makes DPI (deep packet inspection) impossible.