From mboxrd@z Thu Jan  1 00:00:00 1970
From: Loic Dachary <loic@dachary.org>
Subject: Re: Erasure code library summary
Date: Wed, 19 Jun 2013 08:56:06 +0200
Message-ID: <51C15606.4010105@dachary.org>
References: <51C05123.8000002@dachary.org> <kpr0dn$3cr$1@ger.gmane.org>
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To: Alex Elsayed <eternaleye@gmail.com>
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On 06/19/2013 03:10 AM, Alex Elsayed wrote:
> Loic Dachary wrote:
>=20
>> Hi Ceph,
>>
> <snip>
>> Reed-Solomon coding family is the only one that can keep the chuncks
>> unencoded and therefore concatenable.
> <snip>
>=20
> In my understanding, this is not strictly true - any 'systematic' code =
will=20
> have the unencoded chunks remain available in this manner, and any non-=

> systematic linear code can be transformed into a systematic code with t=
he=20
> same minimum distance. Fountain codes are often explicitly constructed =
to=20
> maintain this property, as in the case of RaptorQ [RFC 6330].
>=20
> https://en.wikipedia.org/wiki/Systematic_code

Thanks for correcting my mistake :-)

>=20
> --
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--=20
Lo=EFc Dachary, Artisan Logiciel Libre
All that is necessary for the triumph of evil is that good people do noth=
ing.


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