https://github.com/aead/poly

Package poly implements message authenticators based on polynomials
https://github.com/aead/poly

cryptography gcm golang poly1305

Last synced: about 1 month ago
JSON representation

Package poly implements message authenticators based on polynomials

• Host: GitHub
• URL: https://github.com/aead/poly
• Owner: aead
• License: mit
• Created: 2017-06-16T22:55:52.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2017-07-25T00:17:30.000Z (over 7 years ago)
• Last Synced: 2024-06-20T12:42:49.852Z (5 months ago)
• Topics: cryptography, gcm, golang, poly1305
• Language: Go
• Size: 2.93 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

        
## Polynomial authentication schemes

A polynomial authenticator is basically a message authentication scheme. Therefore

the polynomial authenticator takes a secret key and a message of arbitrary size and

computes a fixed size authentication tag.

It is critical for the security of the authenticator that the one key is never used for more than one message - so never reuse a key. Authenticating two different messages with the same key allows an attacker to forge messages at will.

This package provides a general interface for polynomial authenticators and natively supports two commonly used polynomials:

 - **GHASH** used by the AES-GCM AEAD construction

 - **Poly1305** used by the ChaCha20Poly1305 AEAD construction

Those both polynomial authenticators are used in TLS.

### Install

Install in your GOPATH: `go get github.com/aead/poly`

### Performance

For GHASH benchmarks see: [GHASH implementation](https://github.com/aead/ghash)  

For Poly1305 benchmarks see: [Poly1305 implementation](https://github.com/aead/poly1305)