https://github.com/gh2o/bash_tls

A minimal TLS 1.2 client implementation in a pure Bash script
https://github.com/gh2o/bash_tls

aes bash tls

Last synced: 2 months ago
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A minimal TLS 1.2 client implementation in a pure Bash script

• Host: GitHub
• URL: https://github.com/gh2o/bash_tls
• Owner: gh2o
• Created: 2017-09-04T01:23:37.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2023-11-03T05:39:25.000Z (about 1 year ago)
• Last Synced: 2024-08-04T04:09:16.581Z (6 months ago)
• Topics: aes, bash, tls
• Language: Shell
• Homepage:
• Size: 22.5 KB
• Stars: 333
• Watchers: 7
• Forks: 7
• Open Issues: 2
• Metadata Files:
  • Readme: README.md

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README

        
# bash_tls

A minimal TLS 1.2 implementation in a pure Bash script

bash_tls implements TLS well enough to make a simple HTTPS request to most web servers.

## Usage

`./bash_tls.sh [https://website.com/path/to/file]`  

If a URL is not given, defaults to `https://www.google.com/robots.txt`.

## Features

* Supports a single cipher suite: TLS_RSA_WITH_AES_128_GCM_SHA256

  * RSA key exchange

  * HMAC-SHA256 as pseudorandom function

  * AES in GCM mode for encryption

* Supports Server Name Indication

## Missing

* Only supports RSA certificates

* Does not validate certificate chain

## Dependencies

bash_tls depends only on the following software:

* bash 4.3+ compiled with `--enable-net-redirections`

* GNU bc (for doing RSA calculations)

* sha256sum (from Linux coreutils) or shasum (on Mac)

## Performance

Don't ask.