https://github.com/molnarg/ascii-zip

A deflate compressor that emits compressed data that is in the [A-Za-z0-9] ASCII byte range.
https://github.com/molnarg/ascii-zip

Last synced: about 2 months ago
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A deflate compressor that emits compressed data that is in the [A-Za-z0-9] ASCII byte range.

• Host: GitHub
• URL: https://github.com/molnarg/ascii-zip
• Owner: molnarg
• Created: 2014-04-29T23:28:34.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2015-01-13T09:21:02.000Z (over 9 years ago)
• Last Synced: 2024-07-10T07:48:41.640Z (2 months ago)
• Language: Python
• Homepage:
• Size: 147 KB
• Stars: 167
• Watchers: 4
• Forks: 25
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

        
ascii-zip

=========

A deflate compressor that emits compressed data that is in the [A-Za-z0-9] ASCII byte range.

Example

=======

```bash

$ echo 'Hello ASCII world!' >hello

$ ./compress.py --mode raw --output ./hello.infalted ./hello >/dev/null

$ cat ./hello.infalted

D0Up0IZUnnnnnnnnnnnnnnnnnnnUU5nnnnnn3SUUnUUUwCiudIbEAtwwwEt333

G0GDGGDtGptw0GwDDDGtDGDt33333www03333sDdFPsgWWwackSKKaowOWGQ4

```

Why?

====

It can be used for bypassing certain filters in certain applications :)

This algorithm is at the heart of the Rosetta Flash vulnerability. For additional information, see

* [JSONP & handcrafted Flash files](http://quaxio.com/jsonp_handcrafted_flash_files/)

* [Handcrafting ASCII Flash Files for Fun and Profit](https://molnarg.github.io/ascii-flash/)

* [Bypassing Same Origin Policy With JSONP APIs and Flash](https://hackerone.com/reports/10373)

* [Abusing JSONP with Rosetta Flash](http://miki.it/blog/2014/7/8/abusing-jsonp-with-rosetta-flash/).