Re: Can I store encrypted data in char data type?

Just so I understand. You are suggesting that I take the characters, lets say decimal 255, and convert to hex characters, "ff", and store "ff" as part of a VarChar2 string. Is that correct?

thanks,

jerry

"Thomas Kyte" <tkyte_at_us.oracle.com> wrote in message news:9merjs01goe_at_drn.newsguy.com...
> In article <9mefan$4dr_at_dispatch.concentric.net>, "JerryK" says...
> >
> >Hi,
> >
> >I am storing an encrypted version of the user's password in a table. Can
I
> >store this is a character data type if the encrypted form contains
> >non-printiable characters?
> >
> >All I can guarantee about the string is that each character will have an
> >ASCII value from 0 to 255.
> >
> >jerry
> >
> >
> >
>
> it'll be dangerous. If the client character set is not the same as the
database
> servers -- character set conversion will kick in (eg: a unix server with 7
bit
> ascii and a windows client with 8 bit WE8ISO -- your encrypted data will
be that
> much harder to "crack" as it will be changed)
>
> I would recommend if you want to use a varchar2 or char type - put the HEX
> version of the data in there, not the raw bits and bytes.
>
> --
> Thomas Kyte (tkyte@us.oracle.com) http://asktom.oracle.com/
> Expert one on one Oracle, programming techniques and solutions for Oracle.
> http://www.amazon.com/exec/obidos/ASIN/1861004826/
> Opinions are mine and do not necessarily reflect those of Oracle Corp
>
Received on Wed Aug 29 2001 - 19:04:42 CDT