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/* vi: set sw=4 ts=4:
*
* Copyright (C) 2001 - 2020 Christian Hohnstaedt.
*
* All rights reserved.
*/
#include "NewKey.h"
#include "MainWindow.h"
#include "Help.h"
#include "lib/pki_evp.h"
#include "lib/pkcs11.h"
#include "distname.h"
#include "clicklabel.h"
#include "ItemCombo.h"
#include <QLabel>
#include <QPushButton>
#include <QLineEdit>
#include <QStringList>
class keyListItem
{
public:
bool card;
keytype ktype;
QString printname;
slotid slot;
unsigned minKeySize;
unsigned maxKeySize;
unsigned long ec_flags;
keyListItem(pkcs11 *p11, slotid nslot, CK_MECHANISM_TYPE m)
{
slot = nslot;
CK_MECHANISM_INFO mechinfo;
p11->mechanismInfo(slot, m, &mechinfo);
minKeySize = mechinfo.ulMinKeySize;
maxKeySize = mechinfo.ulMaxKeySize;
if (maxKeySize == 0) {
/* Fallback for libraries not
* filling in the maxKeySize */
maxKeySize = INT_MAX;
}
ktype = keytype::byMech(m);
tkInfo ti = p11->tokenInfo(slot);
#ifndef OPENSSL_NO_EC
if (m == CKM_EC_KEY_PAIR_GEN) {
CK_MECHANISM_INFO info;
p11->mechanismInfo(slot, m, &info);
ec_flags = info.flags & (CKF_EC_F_P | CKF_EC_F_2M);
if (!ec_flags) {
/* Fallback: Assume to support both for
* libraries leaving this flag empty
*/
ec_flags = CKF_EC_F_P | CKF_EC_F_2M;
}
}
#endif
printname = QString("%1 #%2 (%3 Key of %4 - %5 bits)").
arg(ti.label()).arg(ti.serial()).
arg(ktype.name).
arg(minKeySize).
arg(maxKeySize);
card = true;
}
keyListItem(const keytype &t = keytype())
: ktype(t)
{
printname = ktype.name;
card = false;
slot = slotid();
minKeySize = 0;
maxKeySize = INT_MAX;
ec_flags = 0;
}
int type() const
{
return ktype.type;
}
};
Q_DECLARE_METATYPE(keyListItem);
NewKey::NewKey(QWidget *parent, const QString &name)
:QDialog(parent ? parent : mainwin)
{
static const QList<int> sizeList = { 1024, 2048, 4096, 8192 };
slotidList p11_slots;
QList<keyListItem> keytypes;
setupUi(this);
setWindowTitle(XCA_TITLE);
image->setPixmap(QPixmap(":keyImg"));
mainwin->helpdlg->register_ctxhelp_button(this, "keygen");
if (!name.isEmpty())
keyDesc->setText(name);
keyLength->setEditable(true);
foreach (int size, sizeList)
keyLength->addItem(QString("%1 bit").arg(size));
foreach (const keytype t, keytype::types())
keytypes << keyListItem(t);
updateCurves();
keyLength->setEditText(QString("%1 bit").arg(keyjob::defaultjob.size));
keyDesc->setFocus();
if (pkcs11::libraries.loaded()) try {
pkcs11 p11;
p11_slots = p11.getSlotList();
foreach(slotid slot, p11_slots) {
QList<CK_MECHANISM_TYPE> ml = p11.mechanismList(slot);
foreach(keytype t, keytype::types())
if (ml.contains(t.mech))
keytypes << keyListItem(&p11, slot,
t.mech);
}
} catch (errorEx &) {
p11_slots.clear();
}
for (int i=0; i<keytypes.count(); i++) {
QVariant q;
q.setValue(keytypes[i]);
keyType->addItem(keytypes[i].printname, q);
if (!keytypes[i].card &&
keytypes[i].type() == keyjob::defaultjob.ktype.type)
{
keyType->setCurrentIndex(i);
}
}
buttonBox->button(QDialogButtonBox::Ok)->setText(tr("Create"));
}
void NewKey::addCurveBoxCurves(const QList<builtin_curve> &curves)
{
foreach(builtin_curve curve, curves) {
QString sn(OBJ_nid2sn(curve.nid));
QString p, comment = curve.comment;
if (comment.isEmpty())
comment = "---";
p = sn + ": " + comment;
curveBox->addItem(sn + ": " + comment, curve.nid);
}
}
void NewKey::updateCurves(unsigned min, unsigned max, unsigned long ec_flags)
{
#ifndef OPENSSL_NO_EC
QList<builtin_curve> curve_rfc5480, curve_x962, curve_other;
foreach(builtin_curve curve, builtinCurves) {
const char *sn = OBJ_nid2sn(curve.nid);
if (!sn || curve.order_size < min || curve.order_size > max)
continue;
if (ec_flags && (curve.type & ec_flags) == 0)
continue;
switch (curve.flags) {
case CURVE_RFC5480: curve_rfc5480 << curve; break;
case CURVE_X962: curve_x962 << curve; break;
case CURVE_OTHER: curve_other << curve; break;
}
}
curveBox->clear();
addCurveBoxCurves(curve_rfc5480);
curveBox->insertSeparator(curveBox->count());
addCurveBoxCurves(curve_x962);
curveBox->insertSeparator(curveBox->count());
addCurveBoxCurves(curve_other);
int default_index = curveBox->findData(
QVariant(keyjob::defaultjob.ec_nid));
curveBox->setCurrentIndex(default_index == -1 ? 0 : default_index);
#else
(void)min; (void)max; (void)ec_flags;
#endif
}
void NewKey::on_keyType_currentIndexChanged(int idx)
{
keyListItem ki = keyType->itemData(idx).value<keyListItem>();
curveBox->setVisible(ki.ktype.curve);
curveLabel->setVisible(ki.ktype.curve);
keySizeLabel->setVisible(ki.ktype.length);
keyLength->setVisible(ki.ktype.length);
rememberDefault->setEnabled(!ki.card);
if (ki.ktype.curve && ki.card) {
updateCurves(ki.minKeySize, ki.maxKeySize, ki.ec_flags);
}
}
keyjob NewKey::getKeyJob() const
{
keyjob job;
keyListItem selected = keyType->itemData(keyType->currentIndex())
.value<keyListItem>();
job.ktype = selected.ktype;
if (job.isEC()) {
int idx = curveBox->currentIndex();
job.ec_nid = curveBox->itemData(idx).toInt();
} else {
QString size = keyLength->currentText();
size.replace(QRegularExpression("[^0-9]"), "");
job.size = size.toInt();
}
job.slot = selected.slot;
return job;
}
void NewKey::accept()
{
if (rememberDefault->isChecked()) {
keyjob::defaultjob = getKeyJob();
Settings["defaultkey"] = keyjob::defaultjob.toString();
}
QDialog::accept();
}
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