openssl ts

OpenSSL command to generate and verify timestamps. More information: https://www.openssl.org/docs/manmaster/man1/openssl-ts.html.

• Generate a SHA-512 timestamp request of a specific file and output to file.tsq:

openssl ts -query -data path/to/file -sha512 -out path/to/file.tsq

• Check the date and metadata of a specific timestamp response file:

openssl ts -reply -in path/to/file.tsr -text

• Verify a timestamp request file and a timestamp response file from the server with an SSL certificate file:

openssl ts -verify -in path/to/file.tsr -queryfile path/to/file.tsq -partial_chain -CAfile path/to/cert.pem

• Create a timestamp response for request using key and signing certificate and output it to file.tsr:

openssl ts -reply -queryfile path/to/file.tsq -inkey path/to/tsakey.pem -signer tsacert.pem -out path/to/file.tsr