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https://github.com/QuasarApp/qca.git
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789799583a
show the two ways to do a basic hash. Also, an example of some of the options for working with providers. More comments to explain everything. This also adds copyright notices for everything, and notes on the pre-QCA2 examples. svn path=/trunk/kdesupport/qca/; revision=374181
109 lines
3.0 KiB
C++
109 lines
3.0 KiB
C++
/*
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Copyright (C) 2003 Justin Karneges
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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// TODO: this code needs to be updated for QCA2
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#include<qfile.h>
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#include<qfileinfo.h>
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#include"qca.h"
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#include<stdio.h>
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//#define USE_FILE
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QCA::RSAKey readKeyFile(const QString &name)
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{
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QCA::RSAKey k;
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QFile f(name);
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if(!f.open(IO_ReadOnly)) {
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printf("Unable to open %s\n", name.latin1());
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return k;
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}
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QByteArray der = f.readAll();
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f.close();
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printf("Read %s [%d bytes]\n", name.latin1(), der.size());
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if(!k.fromDER(der)) {
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printf("%s: Error importing DER format.\n", name.latin1());
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return k;
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}
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char *yes = "yes";
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char *no = "no";
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printf("Successfully imported %s (enc=%s, dec=%s)\n",
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name.latin1(),
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k.havePublic() ? yes : no,
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k.havePrivate() ? yes : no);
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printf("Converting to DER: %d bytes\n", k.toDER().size());
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printf("Converting to PEM:\n%s\n", k.toPEM().latin1());
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return k;
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}
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int main(int argc, char **argv)
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{
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QCA::init();
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QCString cs = (argc >= 2) ? argv[1] : "hello";
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if(!QCA::isSupported(QCA::CAP_RSA))
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printf("RSA not supported!\n");
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else {
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#ifdef USE_FILE
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QCA::RSAKey pubkey = readKeyFile("keypublic.der");
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if(pubkey.isNull())
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return 1;
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QCA::RSAKey seckey = readKeyFile("keyprivate.der");
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if(seckey.isNull())
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return 1;
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#else
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QCA::RSAKey seckey = QCA::RSA::generateKey(1024);
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if(seckey.isNull())
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return 1;
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QCA::RSAKey pubkey = seckey;
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#endif
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// encrypt some data
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QByteArray a(cs.length());
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memcpy(a.data(), cs.data(), a.size());
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QCA::RSA op;
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op.setKey(pubkey);
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QByteArray result;
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if(!op.encrypt(a, &result)) {
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printf("Error encrypting.\n");
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return 1;
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}
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QString rstr = QCA::arrayToHex(result);
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printf(">rsa(\"%s\") = [%s]\n", cs.data(), rstr.latin1());
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// now decrypt it
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op.setKey(seckey);
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QByteArray dec;
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if(!op.decrypt(result, &dec)) {
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printf("Error decrypting.\n");
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return 1;
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}
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QCString dstr;
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dstr.resize(dec.size()+1);
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memcpy(dstr.data(), dec.data(), dec.size());
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printf("<rsa(\"%s\") = [%s]\n", rstr.latin1(), dstr.data());
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}
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return 0;
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}
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