openssl-ts

handles RFC 3161 Time Stamping Authority operations

TLDR

Create timestamp request

$ openssl ts -query -data [file] -out [request.tsq]

Create timestamp response

$ openssl ts -reply -queryfile [request.tsq] -signer [cert.pem] -out [response.tsr]

Verify timestamp

$ openssl ts -verify -data [file] -in [response.tsr] -CAfile [ca.pem]

Print timestamp request

$ openssl ts -query -in [request.tsq] -text

SYNOPSIS

openssl ts command [options]

DESCRIPTION

openssl ts handles RFC 3161 Time Stamping Authority (TSA) operations. Creates timestamp requests, generates responses, and verifies timestamps. Used for proving data existed at a specific time.

PARAMETERS

-query

Create timestamp request.

-reply

Create timestamp response.

-verify

Verify timestamp response.

-data file

Data file to timestamp.

-in file

Input file.

-out file

Output file.

-text

Print in human-readable form.