5 tsget - Time Stamping HTTP/HTTPS client
15 [B<-k> private_key.pem]
17 [B<-c> client_cert.pem]
26 The B<tsget> command can be used for sending a time stamp request, as
27 specified in B<RFC 3161>, to a time stamp server over HTTP or HTTPS and storing
28 the time stamp response in a file. This tool cannot be used for creating the
29 requests and verifying responses, you can use the OpenSSL B<ts(1)> command to
30 do that. B<tsget> can send several requests to the server without closing
31 the TCP connection if more than one requests are specified on the command
34 The tool sends the following HTTP request for each time stamp request:
37 User-Agent: OpenTSA tsget.pl/<version>
40 Content-Type: application/timestamp-query
41 Accept: application/timestamp-reply
42 Content-Length: length of body
44 ...binary request specified by the user...
46 B<tsget> expects a response of type application/timestamp-reply, which is
47 written to a file without any interpretation.
53 =item B<-h> server_url
55 The URL of the HTTP/HTTPS server listening for time stamp requests.
59 If the B<-o> option is not given this argument specifies the extension of the
60 output files. The base name of the output file will be the same as those of
61 the input files. Default extension is '.tsr'. (Optional)
65 This option can be specified only when just one request is sent to the
66 server. The time stamp response will be written to the given output file. '-'
67 means standard output. In case of multiple time stamp requests or the absence
68 of this argument the names of the output files will be derived from the names
69 of the input files and the default or specified extension argument. (Optional)
73 The name of the currently processed request is printed on standard
78 Switches on verbose mode for the underlying B<curl> library. You can see
79 detailed debug messages for the connection. (Optional)
81 =item B<-k> private_key.pem
83 (HTTPS) In case of certificate-based client authentication over HTTPS
84 <private_key.pem> must contain the private key of the user. The private key
85 file can optionally be protected by a passphrase. The B<-c> option must also
86 be specified. (Optional)
88 =item B<-p> key_password
90 (HTTPS) Specifies the passphrase for the private key specified by the B<-k>
91 argument. If this option is omitted and the key is passphrase protected B<tsget>
92 will ask for it. (Optional)
94 =item B<-c> client_cert.pem
96 (HTTPS) In case of certificate-based client authentication over HTTPS
97 <client_cert.pem> must contain the X.509 certificate of the user. The B<-k>
98 option must also be specified. If this option is not specified no
99 certificate-based client authentication will take place. (Optional)
101 =item B<-C> CA_certs.pem
103 (HTTPS) The trusted CA certificate store. The certificate chain of the peer's
104 certificate must include one of the CA certificates specified in this file.
105 Either option B<-C> or option B<-P> must be given in case of HTTPS. (Optional)
109 (HTTPS) The path containing the trusted CA certificates to verify the peer's
110 certificate. The directory must be prepared with the B<c_rehash>
111 OpenSSL utility. Either option B<-C> or option B<-P> must be given in case of
114 =item B<-rand> file:file...
116 The files containing random data for seeding the random number
117 generator. Multiple files can be specified, the separator is B<;> for
118 MS-Windows, B<,> for VMS and B<:> for all other platforms. (Optional)
120 =item B<-g> EGD_socket
122 The name of an EGD socket to get random data from. (Optional)
126 List of files containing B<RFC 3161> DER-encoded time stamp requests. If no
127 requests are specified only one request will be sent to the server and it will be
128 read from the standard input. (Optional)
132 =head1 ENVIRONMENT VARIABLES
134 The B<TSGET> environment variable can optionally contain default
135 arguments. The content of this variable is added to the list of command line
140 The examples below presume that B<file1.tsq> and B<file2.tsq> contain valid
141 time stamp requests, tsa.opentsa.org listens at port 8080 for HTTP requests
142 and at port 8443 for HTTPS requests, the TSA service is available at the /tsa
145 Get a time stamp response for file1.tsq over HTTP, output is written to
148 tsget -h http://tsa.opentsa.org:8080/tsa file1.tsq
150 Get a time stamp response for file1.tsq and file2.tsq over HTTP showing
151 progress, output is written to file1.reply and file2.reply respectively:
153 tsget -h http://tsa.opentsa.org:8080/tsa -v -e .reply \
156 Create a time stamp request, write it to file3.tsq, send it to the server and
157 write the response to file3.tsr:
159 openssl ts -query -data file3.txt -cert | tee file3.tsq \
160 | tsget -h http://tsa.opentsa.org:8080/tsa \
163 Get a time stamp response for file1.tsq over HTTPS without client
166 tsget -h https://tsa.opentsa.org:8443/tsa \
167 -C cacerts.pem file1.tsq
169 Get a time stamp response for file1.tsq over HTTPS with certificate-based
170 client authentication (it will ask for the passphrase if client_key.pem is
173 tsget -h https://tsa.opentsa.org:8443/tsa -C cacerts.pem \
174 -k client_key.pem -c client_cert.pem file1.tsq
176 You can shorten the previous command line if you make use of the B<TSGET>
177 environment variable. The following commands do the same as the previous
180 TSGET='-h https://tsa.opentsa.org:8443/tsa -C cacerts.pem \
181 -k client_key.pem -c client_cert.pem'
187 Zoltan Glozik <zglozik@opentsa.org>, OpenTSA project (http://www.opentsa.org)
191 L<openssl(1)|openssl(1)>, L<ts(1)|ts(1)>, L<curl(1)|curl(1)>,