>
> We use our one CA to secure our site with client certificates and now my
> boss asked me if we could use certificates to sign our documents (e.g.
> Acrobat Docs). No problem at this point. But now he wants time stamps. I
> found a IETF Draft about Time Stamping but nothing else. Is it possible to
> use mod_ssl, OpenSSL for this task ?
Daniel,
according to Schneier's book "Appied Crypto" timestamping protocols
are patented so you might not be able to use it without a proper license.
It should not be too hard to implement one with crypto calls provided
by Openssl library. However you still might want to contact
Surety Technology if there's strict shedule and/or other requirements.
You might want to download a papers if book is not handy; there's at
least 3 entries with "stamp" in title listed on Counterpane's site.
hope this helps,
Vadim
______________________________________________________________________
Apache Interface to OpenSSL (mod_ssl) www.modssl.org
User Support Mailing List [EMAIL PROTECTED]
Automated List Manager [EMAIL PROTECTED]
