tsget - Time Stamping HTTP/HTTPS client


   tsget -h server_url [-e extension] [-o output] [-v] [-d] [-k
   private_key.pem] [-p key_password] [-c client_cert.pem] [-C
   CA_certs.pem] [-P CA_path] [-r file:file...]  [-g EGD_socket]


   The tsget command can be used for sending a time stamp request, as
   specified in RFC 3161, to a time stamp server over HTTP or HTTPS and
   storing the time stamp response in a file. This tool cannot be used for
   creating the requests and verifying responses, you can use the OpenSSL
   ts(1) command to do that. tsget can send several requests to the server
   without closing the TCP connection if more than one requests are
   specified on the command line.

   The tool sends the following HTTP request for each time stamp request:

           POST url HTTP/1.1
           User-Agent: OpenTSA tsget.pl/<version>
           Host: <host>:<port>
           Pragma: no-cache
           Content-Type: application/timestamp-query
           Accept: application/timestamp-reply
           Content-Length: length of body

           ...binary request specified by the user...

   tsget expects a response of type application/timestamp-reply, which is
   written to a file without any interpretation.


   -h server_url
       The URL of the HTTP/HTTPS server listening for time stamp requests.

   -e extension
       If the -o option is not given this argument specifies the extension
       of the output files. The base name of the output file will be the
       same as those of the input files. Default extension is '.tsr'.

   -o output
       This option can be specified only when just one request is sent to
       the server. The time stamp response will be written to the given
       output file. '-' means standard output. In case of multiple time
       stamp requests or the absence of this argument the names of the
       output files will be derived from the names of the input files and
       the default or specified extension argument. (Optional)

   -v  The name of the currently processed request is printed on standard
       error. (Optional)

   -d  Switches on verbose mode for the underlying curl library. You can
       see detailed debug messages for the connection. (Optional)

   -k private_key.pem
       (HTTPS) In case of certificate-based client authentication over
       HTTPS <private_key.pem> must contain the private key of the user.
       The private key file can optionally be protected by a passphrase.
       The -c option must also be specified. (Optional)

   -p key_password
       (HTTPS) Specifies the passphrase for the private key specified by
       the -k argument. If this option is omitted and the key is
       passphrase protected tsget will ask for it. (Optional)

   -c client_cert.pem
       (HTTPS) In case of certificate-based client authentication over
       HTTPS <client_cert.pem> must contain the X.509 certificate of the
       user.  The -k option must also be specified. If this option is not
       specified no certificate-based client authentication will take
       place. (Optional)

   -C CA_certs.pem
       (HTTPS) The trusted CA certificate store. The certificate chain of
       the peer's certificate must include one of the CA certificates
       specified in this file.  Either option -C or option -P must be
       given in case of HTTPS. (Optional)

   -P CA_path
       (HTTPS) The path containing the trusted CA certificates to verify
       the peer's certificate. The directory must be prepared with the
       c_rehash OpenSSL utility. Either option -C or option -P must be
       given in case of HTTPS. (Optional)

   -rand file:file...
       The files containing random data for seeding the random number
       generator. Multiple files can be specified, the separator is ; for
       MS-Windows, , for VMS and : for all other platforms. (Optional)

   -g EGD_socket
       The name of an EGD socket to get random data from. (Optional)

       List of files containing RFC 3161 DER-encoded time stamp requests.
       If no requests are specified only one request will be sent to the
       server and it will be read from the standard input. (Optional)


   The TSGET environment variable can optionally contain default
   arguments. The content of this variable is added to the list of command
   line arguments.


   The examples below presume that file1.tsq and file2.tsq contain valid
   time stamp requests, tsa.opentsa.org listens at port 8080 for HTTP
   requests and at port 8443 for HTTPS requests, the TSA service is
   available at the /tsa absolute path.

   Get a time stamp response for file1.tsq over HTTP, output is written to

     tsget -h http://tsa.opentsa.org:8080/tsa file1.tsq

   Get a time stamp response for file1.tsq and file2.tsq over HTTP showing
   progress, output is written to file1.reply and file2.reply

     tsget -h http://tsa.opentsa.org:8080/tsa -v -e .reply \
           file1.tsq file2.tsq

   Create a time stamp request, write it to file3.tsq, send it to the
   server and write the response to file3.tsr:

     openssl ts -query -data file3.txt -cert | tee file3.tsq \
           | tsget -h http://tsa.opentsa.org:8080/tsa \
           -o file3.tsr

   Get a time stamp response for file1.tsq over HTTPS without client

     tsget -h https://tsa.opentsa.org:8443/tsa \
           -C cacerts.pem file1.tsq

   Get a time stamp response for file1.tsq over HTTPS with certificate-
   based client authentication (it will ask for the passphrase if
   client_key.pem is protected):

     tsget -h https://tsa.opentsa.org:8443/tsa -C cacerts.pem \
           -k client_key.pem -c client_cert.pem file1.tsq

   You can shorten the previous command line if you make use of the TSGET
   environment variable. The following commands do the same as the
   previous example:

     TSGET='-h https://tsa.opentsa.org:8443/tsa -C cacerts.pem \
           -k client_key.pem -c client_cert.pem'
     export TSGET
     tsget file1.tsq


   Zoltan Glozik <zglozik@opentsa.org>, OpenTSA project


   openssl(1), ts(1), curl(1), RFC 3161


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