salty-crypto

salty-crypto

A TypeScript implementation of the Noise Protocol Framework, intended to be runnable both in the browser and server-side. Also includes just enough minimal crypto code (partly from tweetnacl.js, partly code I wrote myself from the RFCs) to get Noise_*_25519_ChaChaPoly_BLAKE2s working.

Status

Includes (and passes) test vectors from noise-c and snow.

Potential next steps

• support AESGCM, SHA256, SHA512, perhaps via Crypto.subtle?
• support BLAKE2b, by implementing from the RFC just like BLAKE2s
• fallback pattern modifier
• deferred patterns

Code overview

• src directory:
  • aead.ts: RFC-8439 ("IETF") ChaCha20-Poly1305 AEAD construction
  • blake2.ts: RFC-7693 BLAKE2s hash function
  • chacha20.ts: RFC-8439 ("IETF") ChaCha20 cipher
  • noise.ts: Core Noise Protocol Framework handshake and CipherState implementation
  • patterns.ts: Library of Noise handshake patterns
  • poly1305.ts: Port of the Poly1305 MAC implementation from tweetnacl.js, which in turn ported Andrew Moon's Poly1305-donna-16 code.
  • profiles.ts: Profiles of the Noise Protocol Framework. Currently just Noise_25519_ChaChaPoly_BLAKE2s.
  • random.ts: Port of the randomness-generation code from tweetnacl.js.
  • x25519.ts: Port of the X25519 key agreement implementation from tweetnacl.js.
• test-vectors directory: Contains Noise test vectors (more-or-less in the standard JSON format) copied from other projects.
• test directory: Contains a test driver and test code.

Copyright and License

These libraries are Copyright © 2023 Tony Garnock-Jones <[e-mail]>.

They are made available to you under the MIT license.

MIT License

Copyright (c) 2023 Tony Garnock-Jones <[e-mail]>

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice (including the next
paragraph) shall be included in all copies or substantial portions of the
Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.