Milan,

Thanks! Your reply just proved the kind of ignorance I suspected of myself. I am currently specifying an application used for vaccine clinical trial. The application would have to allow user to sing records so that the authority can accept these records. Someone on UT also told me about PGP. When I down loaded your CryptPak I thought I found what I need. Do you happen to know some existing PGP capable class or components or some URLs?

Chen


>Hi,
>
>sorry for late response - I was out of the town.
>
>These are completly different things : MD5 and SHA1 are _hashes_ --> they create fingerprints of text of any length in such way, that it is almost impossible to create string with this hash. Public and private keys (used in PGP for example) has nothing to do with this.
>
>Best reagards
>Milan
>