Qpher

What it does

Post-quantum cryptography as drop-in REST APIs. ML-KEM-768 (formerly Kyber) for encryption and ML-DSA-65 (formerly Dilithium) for signatures — both NIST-standardized in August 2024 (FIPS 203 & 204). Private keys never leave secure enclaves. SDKs for Python, Node.js, Go. MCP server for AI agents. Built by an engineer who spent 12 years on U.S. federal systems (VA, DHS, USCIS, DFC) — making the migration practical for everyone else. Start free.

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  TutaCrypt, post-quantum encryption protocols for securing emails [pdf]2024 · tuta.com · ▲15

  Hi HN, we are the developers from Tuta (formerly Tutanota), the German end-to-end encrypted email provider, and we recently released the world's first post-quantum encryption for email. We have included a full technical write-up of the cryptography involved in these changes and we have released it for open public review. This document specifies TutaCrypt, a protocol designed for hybrid email encryption in Tuta Mail. The protocol combines a classical Elliptic-Curve-Diffie-Hellman key exchange with a post-quantum KEM. The goal is to replace the usage of RSA in Tuta Mail. In the remainder of…

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