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87 lines
1.9 KiB
87 lines
1.9 KiB
#include<tqfile.h>
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#include<tqfileinfo.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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TQCA::RSAKey readKeyFile(const TQString &name)
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{
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TQCA::RSAKey k;
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TQFile 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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TQByteArray 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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TQCA::init();
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TQCString cs = (argc >= 2) ? argv[1] : "hello";
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if(!TQCA::isSupported(TQCA::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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TQCA::RSAKey pubkey = readKeyFile("keypublic.der");
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if(pubkey.isNull())
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return 1;
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TQCA::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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TQCA::RSAKey seckey = TQCA::RSA::generateKey(1024);
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if(seckey.isNull())
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return 1;
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TQCA::RSAKey pubkey = seckey;
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#endif
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// encrypt some data
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TQByteArray a(cs.length());
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memcpy(a.data(), cs.data(), a.size());
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TQCA::RSA op;
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op.setKey(pubkey);
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TQByteArray 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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TQString rstr = TQCA::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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TQByteArray 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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TQCString 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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