md5sum [was: bogofilter-0.95.2 - new current release]
relson at osagesoftware.com
Sat Jul 2 11:26:19 EDT 2005
On Sat, 02 Jul 2005 17:07:11 +0200
Boris 'pi' Piwinger wrote:
> David Relson <relson at osagesoftware.com> wrote:
> >I'm not familiar with md5. Is it the same as md5sum?
> I don't know. It says:
> : md5 - calculate a message-digest fingerprint (checksum) for a file
> : md5 [-pqrtx] [-s string] [file ...]
> : Md5 takes as input a message of arbitrary length and produces as output a
> : 128-bit ``fingerprint'' or ``message digest'' of the input. It is con-
> : jectured that it is computationally infeasible to produce two messages
> : having the same message digest, or to produce any message having a given
> : prespecified target message digest. The MD5 algorithm is intended for
> : digital signature applications, where a large file must be ``compressed''
> : in a secure manner before being encrypted with a private (secret) key
> : under a public-key cryptosystem such as RSA.
> >The command is
> >used in script src/tests/t.encoding. Try changing 'md5sum' to 'md5'
> >and running "t.encoding -v". If there's no complaint, the test has
> I meant: What is the use of md5? Why do we have the test in
> the first place?
The test confirms that encoding with utf-8 produces the same result.
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