[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Any protection against 'bit rot' ?



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