tsget(1ssl)
NAME
tsget - Time Stamping HTTP/HTTPS client
SYNOPSIS
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] [request]...
DESCRIPTION
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.
OPTIONS
-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'.
(Optional)
-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)
[request]...
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)
ENVIRONMENT VARIABLES
The TSGET environment variable can optionally contain default arguments. The content of this variable is added to the list of command line arguments.
EXAMPLES
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
file1.tsr:
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
respectively:
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
authentication:
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
AUTHOR
Zoltan Glozik <zglozik@opentsa.org>, OpenTSA project (http://www.opentsa.org)
SEE ALSO
openssl(1), ts(1), curl(1), RFC 3161
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