The zpaq plugin provides an interface for the ZPAQ library.

For more information about ZPAQ see http://mattmahoney.net/dc/zpaq.html

Security

ZPAQ is not safe for decompressing untrusted input. In order to allow changes to the algorithms ZPAQ embeds decompressors written in a language called ZPAQL in the compressed file. It is possible for malicious actors to create an infinite loop, effectively allowing denial of service attacks.

Codecs

• zpaq — ZPAQ archive

Options

• level (integer, 1-5, default 1): The compression level provided to ZPAQ. 1 is fastest while 3 provides the highest compression ratio.

License

The zlib plugin is licensed under the MIT License, and libzpaq is public domain.