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Re: Any protection against 'bit rot' ?
- To: Andy <tarsnap-users@orgdotuk.org.uk>
- Subject: Re: Any protection against 'bit rot' ?
- From: Johan Brinch <zerrez@gmail.com>
- Date: Tue, 23 Nov 2010 12:48:58 +0100
- Cc: tarsnap-users@tarsnap.com
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On Tue, Nov 23, 2010 at 12:45, Andy <tarsnap-users@orgdotuk.org.uk> wrote:
>> A 2048-bit RSA key used for signing archives. This is used in combination with SHA256 and a Merkle hash tree to verify the authenticity of stored archives.
>
> So presumably any time an archive is accessed, corruption could be
> detected - but corrected?
I don't think tarsnap can correct the errors, considering the data is
encrypted. A bit flip in one block would corrupt everything when
decrypting. Detection should be OK due to hashes, though.
--
Johan Brinch