https://github.com/aead/poly1305

The poly1305 message authentication code
https://github.com/aead/poly1305

chacha20-poly1305 cryptography golang poly1305

Last synced: 19 days ago
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The poly1305 message authentication code

• Host: GitHub
• URL: https://github.com/aead/poly1305
• Owner: aead
• License: mit
• Created: 2016-07-13T11:25:32.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2018-07-17T14:58:41.000Z (over 6 years ago)
• Last Synced: 2024-10-13T20:43:56.522Z (about 1 month ago)
• Topics: chacha20-poly1305, cryptography, golang, poly1305
• Language: Assembly
• Size: 39.1 KB
• Stars: 10
• Watchers: 3
• Forks: 6
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
[![Godoc Reference](https://godoc.org/github.com/aead/poly1305?status.svg)](https://godoc.org/github.com/aead/poly1305)

## The poly1305 message authentication code

Poly1305 is a fast, one-time authentication function created by Daniel J. Bernstein.  

It is infeasible for an attacker to generate an authenticator for a message without the key.  

However, a key must only be used for a single message. Authenticating two different messages  

with the same key allows an attacker to forge authenticators for other messages with the same key.

### Installation

Install in your GOPATH: `go get -u github.com/aead/poly1305`

### Requirements

All Go versions >= 1.7 are supported.

### Performance

#### AMD64

Hardware: Intel i7-6500U 2.50GHz x 2  

System: Linux Ubuntu 16.04 - kernel: 4.4.0-62-generic  

Go version: 1.8.0  

**AVX2**  

```

name                 speed              cpb

Sum_64-4             1.60GB/s ± 0%      1.39

Sum_256-4            2.32GB/s ± 1%      1.00 

Sum_1K-4             3.61GB/s ± 1%      0.65 

Sum_8K-4             4.20GB/s ± 1%      0.55

Write_64-4           2.04GB/s ± 0%      1.14

Write_256-4          3.50GB/s ± 2%      0.67

Write_1K-4           4.08GB/s ± 2%      0.57

Write_8K-4           4.25GB/s ± 2%      0.55

```

**x64**  

```

name                 speed              cpb

Sum_64-4             1.60GB/s ± 1%      1.46

Sum_256-4            2.11GB/s ± 3%      1.10

Sum_1K-4             2.35GB/s ±13%      0.99

Sum_8K-4             2.47GB/s ±13%      0.94

Write_64-4           1.81GB/s ± 5%      1.29

Write_256-4          2.24GB/s ± 4%      1.04   

Write_1K-4           2.55GB/s ± 0%      0.91

Write_8K-4           2.63GB/s ± 0%      0.88

```