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From: =?UTF-8?B?SsOpcsO0bWUgQm91YXQ=?= <jerome DOT bouat AT wanadoo DOT fr>
Subject: Re: a few tar.xz packages are bigger than their uncompressed tar
To: cygwin AT cygwin DOT com
References: <cc1a2cd5-a947-624e-4473-73151794a5d7 AT laposte DOT net> <960ca9df83cf80f4321a69f2d8b8c0ba AT mail DOT kylheku DOT com>
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Date: Thu, 5 Oct 2017 21:10:16 +0200
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Hello

> No compression method need ever increase the
> size of the datum by more than one bit.
> 
> The compressed representation can begin with a header
> bit which is 1 to indicate "compressed" and 0 to indicate
> "stored without compression".

Does the xz format provide a checksum even if the file is stored without compression ?

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