Hi,
Yes, you need to use a private key to create a PKCS7 signature. Beside, you
need to create a certificate which corresponding to your privkey, then this
cert will be used to verify your signature. You can use Openssl command line
to create key and cert

Hien TTT

On 7/30/07, Wockenfuß, Frank <[EMAIL PROTECTED]> wrote:
>
>  Hi,
> thanks for the hint.
> Do I always need to use a private key to create a PKCS7 format?
> If yes, how do I decrypt the PKCS7 format on the verification side?
>
> Frank Wockenfuß
>
>
>  ------------------------------
> *Von:* [EMAIL PROTECTED] [mailto:
> [EMAIL PROTECTED] *Im Auftrag von *Hien Truong Thu
> *Gesendet:* Montag, 30. Juli 2007 12:37
> *An:* openssl-users@openssl.org
> *Betreff:* Re: Detached Signature
>
> You should see the example sign.c in openssl crypto lib. detached
> signature can be saved in PKCS7 format.
>
> Good luck!
>
> Hien TTT
>
> On 7/30/07, Wockenfuß, Frank <[EMAIL PROTECTED]> wrote:
> >
> > Hello everybody,
> >
> > I want to save a detached signature and I don't know what structure to
> > use and how to fill it. The signature is created by a smartcardterminal and
> > I want to save it in a standardized way for later verification.
> >
> > Any suggestions?
> >
> > Frank Wockenfuß
> > ______________________________________________________________________
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> >
>
>

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