~ubuntu-branches/ubuntu/wily/qca2/wily-proposed

<h1>certtest.cpp</h1>This example shows how <a class="el" href="classQCA_1_1Certificate.html">QCA::Certificate</a> and <a class="el" href="classQCA_1_1CertificateCollection.html">QCA::CertificateCollection</a> can be used. Note that the argument, if you provide it, must be a PEM encoded file collection.

<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 /*

<a name="l00004"></a>00004

<a name="l00005"></a>00005 Permission is hereby granted, free of charge, to any person obtaining a copy

<a name="l00006"></a>00006 of this software and associated documentation files (the "Software"), to deal

<a name="l00007"></a>00007 in the Software without restriction, including without limitation the rights

<a name="l00008"></a>00008 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

<a name="l00009"></a>00009 copies of the Software, and to permit persons to whom the Software is

<a name="l00010"></a>00010 furnished to do so, subject to the following conditions:

<a name="l00011"></a>00011

<a name="l00012"></a>00012 The above copyright notice and this permission notice shall be included in

<a name="l00013"></a>00013 all copies or substantial portions of the Software.

<a name="l00014"></a>00014

<a name="l00015"></a>00015 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

<a name="l00016"></a>00016 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

<a name="l00017"></a>00017 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

<a name="l00018"></a>00018 AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

<a name="l00019"></a>00019 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

<a name="l00020"></a>00020 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

<a name="l00021"></a>00021 */

<a name="l00022"></a>00022

<a name="l00023"></a>00023

<a name="l00024"></a>00024 #include <QtCrypto>

<a name="l00025"></a>00025

<a name="l00026"></a>00026 #include <QCoreApplication>

<a name="l00027"></a>00027

<a name="l00028"></a>00028 #include <iostream>

<a name="l00029"></a>00029

<a name="l00030"></a>00030 // dump out information about some part of the certificate

<a name="l00031"></a>00031 // we use this same approach for information about the subject

<a name="l00032"></a>00032 // of the certificate, and also about the issuer of the certificate

<a name="l00033"></a>00033 static void dumpCertificateInfo( <a class="codeRef" doxygen="qt.tag:" href="qmultimap.html">QCA::CertificateInfo</a> info)

<a name="l00034"></a>00034 {

<a name="l00035"></a>00035 std::cout << " Organization: " << std::endl;

<a name="l00036"></a>00036

<a name="l00037"></a>00037 // Note that a single certificate can apply to more than one

<a name="l00038"></a>00038 // organisation. QCA::Certificate is a multimap, so when you

<a name="l00039"></a>00039 // ask for the values associated with a parameter, it returns

<a name="l00040"></a>00040 // a list.

<a name="l00041"></a>00041 <a class="codeRef" doxygen="qt.tag:" href="qlist.html">QList<QString></a> orgInfoList = info.values(<a name="a27"></a><a class="code" href="namespaceQCA.html#aec56a74cc9f34c93cbde6eabbbe37e8710604bbbb5c5513e2fd83fe27ea986f">QCA::Organization</a>);

<a name="l00042"></a>00042

<a name="l00043"></a>00043 // foreach() interates over each value in the list, and we dump

<a name="l00044"></a>00044 // out each value. Note that is uncommon for a certificate to

<a name="l00045"></a>00045 // actually contain multiple values for a single parameter.

<a name="l00046"></a>00046 <a class="codeRef" doxygen="qt.tag:" href="qstring.html">QString</a> organization;

<a name="l00047"></a>00047 foreach( organization, orgInfoList ) {

<a name="l00048"></a>00048 std::cout << " " << qPrintable(organization) << std::endl;

<a name="l00049"></a>00049 }

<a name="l00050"></a>00050

<a name="l00051"></a>00051 std::cout << " Country: " << std::endl;

<a name="l00052"></a>00052 // As above, however this shows a more compact way to represent

<a name="l00053"></a>00053 // the iteration and output.

<a name="l00054"></a>00054 foreach( <a class="codeRef" doxygen="qt.tag:" href="qstring.html">QString</a> country, info.values(<a name="a28"></a><a class="code" href="namespaceQCA.html#aec56a74cc9f34c93cbde6eabbbe37e80f5fbd9076d3230f439f153e77cfb4dd">QCA::Country</a>) ) {

<a name="l00055"></a>00055 std::cout << " " << qPrintable(country) << std::endl;

<a name="l00056"></a>00056 }

<a name="l00057"></a>00057 }

<a name="l00058"></a>00058

<a name="l00059"></a>00059 // This is just a convenience routine

<a name="l00060"></a>00060 static void dumpSubjectInfo( <a class="codeRef" doxygen="qt.tag:" href="qmultimap.html">QCA::CertificateInfo</a> subject)

<a name="l00061"></a>00061 {

<a name="l00062"></a>00062 std::cout << "Subject: " << std::endl;

<a name="l00063"></a>00063

<a name="l00064"></a>00064 dumpCertificateInfo( subject );

<a name="l00065"></a>00065 }

<a name="l00066"></a>00066

<a name="l00067"></a>00067

<a name="l00068"></a>00068 // This is just a convenience routine

<a name="l00069"></a>00069 static void dumpIssuerInfo( <a class="codeRef" doxygen="qt.tag:" href="qmultimap.html">QCA::CertificateInfo</a> issuer)

<a name="l00070"></a>00070 {

<a name="l00071"></a>00071 std::cout << "Issuer: " << std::endl;

<a name="l00072"></a>00072

<a name="l00073"></a>00073 dumpCertificateInfo( issuer );

<a name="l00074"></a>00074 }

<a name="l00075"></a>00075

<a name="l00076"></a>00076

<a name="l00077"></a>00077 int main(int argc, char** argv)

<a name="l00078"></a>00078 {

<a name="l00079"></a>00079 // the Initializer object sets things up, and

<a name="l00080"></a>00080 // also does cleanup when it goes out of scope

<a name="l00081"></a>00081 <a name="_a29"></a><a class="code" href="classQCA_1_1Initializer.html">QCA::Initializer</a> <a name="a30"></a><a class="code" href="namespaceQCA.html#1de90bf113c54c9e4ffdc5ad784ce629">init</a>;

100

<a name="l00082"></a>00082

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<a name="l00083"></a>00083 <a class="codeRef" doxygen="qt.tag:" href="qcoreapplication.html">QCoreApplication</a> app(argc, argv);

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<a name="l00084"></a>00084

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<a name="l00085"></a>00085 // We need to ensure that we have certificate handling support

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<a name="l00086"></a>00086 if ( !<a name="a31"></a><a class="code" href="namespaceQCA.html#833c9f215544113d52a3a52eedc58620">QCA::isSupported</a>( "cert" ) ) {

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<a name="l00087"></a>00087 std::cout << "Sorry, no PKI certificate support" << std::endl;

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<a name="l00088"></a>00088 return 1;

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<a name="l00089"></a>00089 }

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<a name="l00090"></a>00090

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<a name="l00091"></a>00091 // We are going to work with a number of certificates, and a

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<a name="l00092"></a>00092 // QList is a great template class for that

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<a name="l00093"></a>00093 <a class="codeRef" doxygen="qt.tag:" href="qlist.html">QList<QCA::Certificate></a> certlist;

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<a name="l00094"></a>00094

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<a name="l00095"></a>00095 // We do two different cases - if we provide an argument, it is taken

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<a name="l00096"></a>00096 // as a filename to read the keys from. If there is no argument, we just

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<a name="l00097"></a>00097 // read from the system store certificates.

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<a name="l00098"></a>00098 if (argc >= 2) {

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<a name="l00099"></a>00099 // we are going to read the certificates in using a single call

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<a name="l00100"></a>00100 // which requires a CertificateCollection.

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<a name="l00101"></a>00101 <a name="_a32"></a><a class="code" href="classQCA_1_1CertificateCollection.html">QCA::CertificateCollection</a> filecerts;

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<a name="l00102"></a>00102 // The conversion can be tested (although you don't have to) to find out if it

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<a name="l00103"></a>00103 // worked.

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<a name="l00104"></a>00104 <a class="code" href="namespaceQCA.html#b00c91d4b676b998115216ef0562161d">QCA::ConvertResult</a> importResult;

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<a name="l00105"></a>00105 // This imports all the PEM encoded certificates from the file specified as the argument

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<a name="l00106"></a>00106 // Note that you pass in a pointer to the result argument.

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<a name="l00107"></a>00107 filecerts = <a name="a33"></a><a class="code" href="classQCA_1_1CertificateCollection.html#5c761410c4fb60c56f542a122e226bfb">QCA::CertificateCollection::fromFlatTextFile</a>( argv[1], &importResult );

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<a name="l00108"></a>00108 if ( <a name="a34"></a><a class="code" href="namespaceQCA.html#b00c91d4b676b998115216ef0562161d4ab65f11eb035b245b32dd2ed7ee9207">QCA::ConvertGood</a> == importResult) {

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<a name="l00109"></a>00109 std::cout << "Import succeeded" << std::endl;

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<a name="l00110"></a>00110 // this turns the CertificateCollection into a QList of Certificate objects

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<a name="l00111"></a>00111 certlist = filecerts.<a name="a35"></a><a class="code" href="classQCA_1_1CertificateCollection.html#1648d513823baef8efdfdee3a8b34798">certificates</a>();

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<a name="l00112"></a>00112 }

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<a name="l00113"></a>00113 } else {

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<a name="l00114"></a>00114 // we have no arguments, so just use the system certificates

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<a name="l00115"></a>00115 if ( !<a name="a36"></a><a class="code" href="namespaceQCA.html#77f5e20c99d07400a92a0f1a38aed721">QCA::haveSystemStore</a>() ) {

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<a name="l00116"></a>00116 std::cout << "System certificates not available" << std::endl;

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<a name="l00117"></a>00117 return 2;

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<a name="l00118"></a>00118 }

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<a name="l00119"></a>00119

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<a name="l00120"></a>00120 // Similar to above, except we just want the system certificates

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<a name="l00121"></a>00121 <a class="code" href="classQCA_1_1CertificateCollection.html">QCA::CertificateCollection</a> systemcerts = <a name="a37"></a><a class="code" href="namespaceQCA.html#ff42b3899718425b11da15efc1019084">QCA::systemStore</a>();

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<a name="l00122"></a>00122

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<a name="l00123"></a>00123 // this turns the CertificateCollection into a QList of Certificate objects

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<a name="l00124"></a>00124 certlist = systemcerts.<a class="code" href="classQCA_1_1CertificateCollection.html#1648d513823baef8efdfdee3a8b34798">certificates</a>();

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<a name="l00125"></a>00125 }

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<a name="l00126"></a>00126

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<a name="l00127"></a>00127 std::cout << "Number of certificates: " << certlist.<a name="a38"></a><a class="codeRef" doxygen="qt.tag:" href="qlist.html#265aa6a012215bff40a5eea6ab2e18be">count</a>() << std::endl;

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<a name="l00128"></a>00128

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<a name="l00129"></a>00129 <a name="_a39"></a><a class="code" href="classQCA_1_1Certificate.html">QCA::Certificate</a> cert;

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<a name="l00130"></a>00130 foreach (cert, certlist) {

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<a name="l00131"></a>00131 std::cout << "Serial Number:";

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<a name="l00132"></a>00132 // the serial number of the certificate is a QCA::BigInteger, but we can

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<a name="l00133"></a>00133 // just convert it to a string, and then output it.

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<a name="l00134"></a>00134 std::cout << qPrintable(cert.<a name="a40"></a><a class="code" href="classQCA_1_1Certificate.html#cdc4857713803551416870bb1502c644">serialNumber</a>().toString()) << std::endl;

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<a name="l00135"></a>00135

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<a name="l00136"></a>00136 // The subject information shows properties of who the certificate

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<a name="l00137"></a>00137 // applies to. See the convenience routines above.

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<a name="l00138"></a>00138 dumpSubjectInfo( cert.<a name="a41"></a><a class="code" href="classQCA_1_1Certificate.html#6a39492fa804b3d2f26e37175fd4312d">subjectInfo</a>() );

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<a name="l00139"></a>00139

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<a name="l00140"></a>00140 // The issuer information shows properties of who the certificate

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<a name="l00141"></a>00141 // was signed by. See the convenience routines above.

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<a name="l00142"></a>00142 dumpIssuerInfo( cert.<a name="a42"></a><a class="code" href="classQCA_1_1Certificate.html#2b2fc0991b0cc3967d34866609ff624d">issuerInfo</a>() );

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<a name="l00143"></a>00143

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<a name="l00144"></a>00144 // Test if the certificate can be used as a certificate authority

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<a name="l00145"></a>00145 if ( cert.<a name="a43"></a><a class="code" href="classQCA_1_1Certificate.html#ef5d394c4ab959be5b31cd3b79702121">isCA</a>() ) {

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<a name="l00146"></a>00146 std::cout << "Is certificate authority" << std::endl;

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<a name="l00147"></a>00147 } else {

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<a name="l00148"></a>00148 std::cout << "Is not a certificate authority" << std::endl;

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<a name="l00149"></a>00149 }

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<a name="l00150"></a>00150

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<a name="l00151"></a>00151 // Test if the certificate is self-signed.

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<a name="l00152"></a>00152 if (cert.<a name="a44"></a><a class="code" href="classQCA_1_1Certificate.html#998fc4ad643bb12c0bba0341a6430897">isSelfSigned</a>() ) {

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<a name="l00153"></a>00153 std::cout << "Self signed" << std::endl;

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<a name="l00154"></a>00154 } else {

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<a name="l00155"></a>00155 std::cout << "Is not self-signed!!!" << std::endl;

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<a name="l00156"></a>00156 }

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<a name="l00157"></a>00157

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<a name="l00158"></a>00158 // Certificate are only valid between specific dates. We can get the dates

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<a name="l00159"></a>00159 // (as a QDateTime) using a couple of calls

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<a name="l00160"></a>00160 std::cout << "Valid from " << qPrintable(cert.<a name="a45"></a><a class="code" href="classQCA_1_1Certificate.html#13e4a24dc8db02cfef632a4cf0d5f630">notValidBefore</a>().<a name="a46"></a><a class="codeRef" doxygen="qt.tag:" href="qdatetime.html#9a4a6acae0c62b5a772d54d3dad17db7">toString</a>());

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<a name="l00161"></a>00161 std::cout << ", until " << qPrintable(cert.<a name="a47"></a><a class="code" href="classQCA_1_1Certificate.html#73e8cc34b294017f32b0467a8303c69a">notValidAfter</a>().<a class="codeRef" doxygen="qt.tag:" href="qdatetime.html#9a4a6acae0c62b5a772d54d3dad17db7">toString</a>());

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<a name="l00162"></a>00162 std::cout << std::endl;

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<a name="l00163"></a>00163

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<a name="l00164"></a>00164 // You can get the certificate in PEM encoding with a simple toPEM() call

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<a name="l00165"></a>00165 std::cout << "PEM:" << std::endl;

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<a name="l00166"></a>00166 std::cout << qPrintable(cert.<a name="a48"></a><a class="code" href="classQCA_1_1Certificate.html#87df3f8d39f078a50be296a10488de1b">toPEM</a>());

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<a name="l00167"></a>00167 std::cout << std::endl << std::endl;

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<a name="l00168"></a>00168 }

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<a name="l00169"></a>00169

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<a name="l00170"></a>00170 return 0;

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<a name="l00171"></a>00171 }

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<a name="l00172"></a>00172

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</pre></div> <hr size="1"><address style="align: right;">Generated on Fri Jul 6 13:22:42 2007 for Qt Cryptographic Architecture by

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