To test the Timestamping Authority service, you can send timestamp requests as follows.

Creating the timestamp request

Create the timestamp request. For example:

openssl ts -query -data data.txt -sha256 -cert -out tsareq.tsq

See below for a description of each option.

Parameter

Description

​-data <file>

Create a timestamp request for the data in the <file> file.​

-sha256

Use the SHA256 algorithm to hash the data.

-cert

Add to the response the certificate described in Issuing a timestamping certificate.

-out <file>

Save the generated request in the <file> file.

The command saves the request in the tsareq.tsq file.

Validating the timestamp request

Validate the generated request.

openssl ts -query -in tsareq.tsq -text

Sending the request to Timestamping Authority

Send the timestamp request to Timestamping Authority. For example:

curl -H "Content-Type: application/timestamp-query" -H "Accept: application/timestamp-reply" --data-binary "@tsareq.tsq" http://<machine>/tsa/<issuerID> --output tsaresp.tsr

Where:

  • <machine> is the IP address or domain name of the Entrut Cryptographic Security Platform node hosting Timestamping Authority.
  • <issuerID> is the value of the Issuer ID configuration parameter.

The command saves the response in the tsaresp.tsr file.

Parsing the timestamp response

Parse the timestamp response to validate the format.

openssl ts -reply -in tsaresp.tsr -text

Verifying the response against the data

Verify the timestamp response against the original data.

openssl ts -verify -in tsaresp.tsr -CAfile ca.pem -data data.txt

Where ca.pem is the Certificate Authority certificate for validating the certificate described in Issuing a timestamping certificate.

Verifying the response against the request 

Verify the response against the timestamp request.

openssl ts -verify -in tsaresp.tsr -CAfile ca.pem -queryfile tsareq.tsq