Information Security Stack Exchange is a question and answer site for information security professionals. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I think I can easily sign the files however I also need a timestamp from 3rd party vendor. I want to digitally sign + stamp log files including DHCP & mail because of laws here.

UPDATE: I found more info about time stamping.

share|improve this question

If I understand what you are asking, it seems to me you are looking for a File Integrity Monitoring solution. Are you familiar with FIMs, or have you researched them? Do you think that fits what you are looking for?

Not sure what budget you are working with, but Tripwire is popular FIM vendor.

share|improve this answer

Signing and timestamping ZIP archives can be tricky, so if this is what you're planning to do I would suggest you to look into the ASiC standard (ETSI TS 102 918).

Note that signing / timestamping a ZIP file may not have the same legal value as signing / timestamping individual files from the ZIP archive (better check your local jurisprudence first).

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.