On Fri, 9 May 2008 18:09:24 -0700 (PDT), Jethro
wrote:
>Does anyone know of any software which will allow a person to create a
>hash of a file (say a text document) with a specific key. The idea
>being that the hash can be published with the document, but the
>original author can prove it was he who signed it (implying it was he
>who wrote it).
PGP - download for free.
>Would such a system be admissable in a UK court as proof of prior
>authorship ?
Yes, I should think that it would be admissable, though it may be
necessary to hire a suitable expert witness to explain to the court
how it works and how effective it is.
All it proves of course is that you had the document in your
possession at some time. It does not prove that you are the author of
the document. Anyone could take the document, remove your digital
signature, append their own and republish it.
--
Cynic
|