Thanks a lot guys for helping me ...

@ Wojciech
I went though the document and will use PBKDF1 from PKCS #5 for key
derivation,its also supported in cryptopp so its great.

I would seek if it is possible to do what i am trying to do with crypto
++ in a better way,all ideas are welcome.

My task is to securely store some keys which my software uses on the
pc, so in case the Client forgets these keys ( he types them to access
data and can change them ) then a administrator can recover them.But
these keys should not be recoverable by anyone other than the admin.

Symmetric Cryptography requires the key to be stored somewhere so i
choose Asymmetric cryptography ( RSA 2048 ) , where in the
administrator has the private key while all clients have public key
for encryption.But as i do not store the private key anywhere i needed
a deterministic way of generating it incase it is required again for
recovering the public key encrypted keys.

So can the above be achieved in crypto++ ...

Thank you in advance ...

On Aug 4, 6:37 pm, "Wojciech S. Czarnecki" <[email protected]> wrote:
> Dnia Wed, Aug 04, 2010 at 06:22:47AM -0700, Vikas patial napisa (a):
>
> > This password is looped around to make 32 bytes string , and then
> > first 16 bytes are key and next 16 bytes are IV.
>
>  ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-5v2/pkcs5v2_1.pdf
>
> Pozdrawiam, Ohir.
>
> --
>
> Wojciech S. Czarnecki
>  << ^oo^ >> OHIR-RIPE

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