timestamping

How do I timestamp simultaneous function calls in Python?

I have a read function in a module. If I perform that function simultaneously I need to timestamp it. How do I do this? ...

Validate Digital Signature using Signature Timestamp

The X509Certificate2Collection.Import method allows to retrieve all certificates from an executable file or from an MSI package. That's fine. Now I want to validate the certificates. The X509Certificate.Verify method validates a certificate against the current time (the Reflector confirms: it uses DateTime.Now). So my first question i...

How can I (reasonably) precisely perform an action every N milliseconds?

I have a machine which uses an NTP client to sync up to internet time so it's system clock should be fairly accurate. I've got an application which I'm developing which logs data in real time, processes it and then passes it on. What I'd like to do now is output that data every N milliseconds aligned with the system clock. So for exampl...

Timestamp server rfc3161 response token generation in Python

Hello! I'm trying to implement tsa server on python using twisted. Currently I'm using openssl binary to generate response, but this seems ugly to me, that's why I'm trying to figure out how to make response token with m2crypto. Thanks in advance for help! Maris. EDITED: how to achieve with m2crypto?: openssl ts -reply -section tsa_...

Which CA issues Timestamping certificate

Hello! Our company currently implementing TSA (Time Stamp Authority) service. And now we are searching CA (Certification Authority), which could issue certificate with intended usage: Timestamping. I contacted with few CA's, but they offer just Digital ID certificates, and know nothing about TSA. Maybe someone has experience with such p...