Dev tools · alternatives · 2026
24 alternatives to Qpher
Post-quantum encryption & signing — drop-in REST APIs
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1
filippo.io/mlkem768 is a pure-Go implementation of the post-quantum key exchange mechanism ML-KEM-768 optimized for correctness and readability.
2024 · words.filippo.io · its alternatives →
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Access Vault▲21Post-Quantum Credential Management Made Easy
2025 · accessvault.app · its alternatives →
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- 6TP
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…
2024 · tuta.com · its alternatives →
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I discovered that in LLM inference, keys and values in the KV cache have very different quantization sensitivities. Keys need higher precision than values to maintain quality. I patched llama.cpp to enable different bit-widths for keys vs. values on Apple Silicon. The results are surprising: - K8V4 (8-bit keys, 4-bit values): 59% memory reduction with only 0.86% perplexity loss - K4V8 (4-bit keys, 8-bit values): 59% memory reduction but 6.06% perplexity loss - The configurations use the same number of bits, but K8V4 is 7× better for quality This means you can run LLMs with 2-3× longer…
2025 · github.com · its alternatives →
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Post-Quantum Security for AI, Data, and Critical Systems.
Apr 2026 · its alternatives →
- 10EE
Hi HN, we have recently completed a research project on how to encrypt emails with post-quantum secure algorithms as well as Forward Secrecy. We'd love to hear your feedback and discuss technical issues. The paper can be found here: https://eprint.iacr.org/2021/875
2021 · its alternatives →
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Post - Quantum Blockchain (ML-DSA-65)
Jul 2026 · quantum-lattice.futuristicai.co.za · its alternatives →
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Neptune is a quantum-safe layer 1 blockchain combining zk-STARKs and PoW consensus. Private by default, programmable, and built for global scale
2014 · neptune.io · its alternatives →
- 13FQ
SasaSavic.ca recently launched a public cryptographic timestamping service designed to remain verifiable even in a post-quantum world. The platform uses SasaSavic Quantum Shield™, a dual-signature protocol combining classical and post-quantum security. Each submitted SHA-256 hash is: • Dual-signed with ECDSA P-256 and ML-DSA-65 (per NIST FIPS 204) • Anchored to the Bitcoin blockchain via OpenTimestamps • Recorded in a public, verifiable daily ledger API (beta, no auth required): https://sasasavic.ca/beta-api/ Example curl request: curl -X POST…
Nov 2025 · its alternatives →
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FIPSign▲1Post-quantum signing API · ML-DSA-65 (NIST FIPS 204)
May 2026 · fipsign.dev · its alternatives →
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Go Quantum-Safe Before Quantum Goes Live
2025 · qu-secure.net · its alternatives →
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The European platform for post-quantum encryption & identity
Mar 2026 · quantumapi.eu · its alternatives →
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Infisical is the open-source platform for secrets, certificates, and privileged access management. - infisical/README.md at main · Infisical/infisical
2024 · github.com · its alternatives →
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Q3AS, deployment & execution of quantum algorithms by Aqora
2024 · aqora.io · its alternatives →
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Module for generating a prefixed API Key. Contribute to seamapi/prefixed-api-key development by creating an account on GitHub.
2022 · github.com · its alternatives →
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Signal protocol implementation for Node.js. Contribute to ForstaLabs/libsignal-node development by creating an account on GitHub.
2017 · github.com · its alternatives →
- 24
Quantum-secure timestamping for verifiable digital proofs
Nov 2025 · sasasavic.ca · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →