QByteArray Authentication::generateTemporaryPassword() const {
static std::random_device rd;
static std::mt19937 mt(rd());
static std::uniform_int_distribution<unsigned char> dist(0, 0xFF);
auto temporary_password_length = 25;
QByteArray tmp_p(temporary_password_length, 0);
auto size = tmp_p.size();
for (int i = 0; i < size; i++){
tmp_p[i] = dist(mt);
}
return tmp_p;
}
bool
MultiSmoothSuperellipsoidIC::checkExtremes(unsigned int i, unsigned int j)
{
Point tmp_p;
for (unsigned int pc = 0; pc < 6; pc++)
{
tmp_p = _centers[j];
// Find extremes along semiaxis of candidate ellipsoids
if (pc == 0)
tmp_p(0) -= _as[j];
else if (pc == 1)
tmp_p(0) += _as[j];
else if (pc == 2)
tmp_p(1) -= _bs[j];
else if (pc == 3)
tmp_p(1) += _bs[j];
else if (pc == 4)
tmp_p(2) -= _cs[j];
else
tmp_p(2) += _cs[j];
const Point dist_vec = _mesh.minPeriodicVector(_var.number(), _centers[i], tmp_p);
const Real dist = dist_vec.norm();
// Handle this case independently because we cannot calculate polar angles at this point
if (MooseUtils::absoluteFuzzyEqual(dist, 0.0))
return true;
// calculate rmn = r^(-n), replacing sin, cos functions with distances
Real rmn = (std::pow(std::abs(dist_vec(0) / dist / _as[i]), _ns[i]) +
std::pow(std::abs(dist_vec(1) / dist / _bs[i]), _ns[i]) +
std::pow(std::abs(dist_vec(2) / dist / _cs[i]), _ns[i]));
Real r = std::pow(rmn, (-1.0 / _ns[i]));
if (dist < r)
return true;
}
return false;
}
/************** Each round consists of the following:
1. c1.multiplyBy(c0)
2. c0 += random constant
3. c2 *= random constant
4. tmp = c1
5. ea.rotate(tmp, random amount in [-nSlots/2, nSlots/2])
6. c2 += tmp
7. ea.rotate(c2, random amount in [1-nSlots, nSlots-1])
8. c1.negate()
9. c3.multiplyBy(c2)
10. c0 -= c3
**************/
void testGeneralOps(const FHEPubKey& publicKey, const FHESecKey& secretKey,
const EncryptedArrayCx& ea, double epsilon,
long nRounds)
{
long nslots = ea.size();
char buffer[32];
vector<cx_double> p0, p1, p2, p3;
ea.random(p0);
ea.random(p1);
ea.random(p2);
ea.random(p3);
Ctxt c0(publicKey), c1(publicKey), c2(publicKey), c3(publicKey);
ea.encrypt(c0, publicKey, p0, /*size=*/1.0);
ea.encrypt(c1, publicKey, p1, /*size=*/1.0);
ea.encrypt(c2, publicKey, p2, /*size=*/1.0);
ea.encrypt(c3, publicKey, p3, /*size=*/1.0);
resetAllTimers();
FHE_NTIMER_START(Circuit);
for (long i = 0; i < nRounds; i++) {
if (verbose) std::cout << "*** round " << i << "..."<<endl;
long shamt = RandomBnd(2*(nslots/2) + 1) - (nslots/2);
// random number in [-nslots/2..nslots/2]
long rotamt = RandomBnd(2*nslots - 1) - (nslots - 1);
// random number in [-(nslots-1)..nslots-1]
// two random constants
vector<cx_double> const1, const2;
ea.random(const1);
ea.random(const2);
ZZX const1_poly, const2_poly;
ea.encode(const1_poly, const1, /*size=*/1.0);
ea.encode(const2_poly, const2, /*size=*/1.0);
mul(p1, p0); // c1.multiplyBy(c0)
c1.multiplyBy(c0);
if (verbose) {
CheckCtxt(c1, "c1*=c0");
debugCompare(ea, secretKey, p1, c1, epsilon);
}
add(p0, const1); // c0 += random constant
c0.addConstant(const1_poly);
if (verbose) {
CheckCtxt(c0, "c0+=k1");
debugCompare(ea, secretKey, p0, c0, epsilon);
}
mul(p2, const2); // c2 *= random constant
c2.multByConstant(const2_poly);
if (verbose) {
CheckCtxt(c2, "c2*=k2");
debugCompare(ea, secretKey, p2, c2, epsilon);
}
vector<cx_double> tmp_p(p1); // tmp = c1
Ctxt tmp(c1);
sprintf(buffer, "tmp=c1>>=%d", (int)shamt);
rotate(tmp_p, shamt); // ea.shift(tmp, random amount in [-nSlots/2,nSlots/2])
ea.rotate(tmp, shamt);
if (verbose) {
CheckCtxt(tmp, buffer);
debugCompare(ea, secretKey, tmp_p, tmp, epsilon);
}
add(p2, tmp_p); // c2 += tmp
c2 += tmp;
if (verbose) {
CheckCtxt(c2, "c2+=tmp");
debugCompare(ea, secretKey, p2, c2, epsilon);
}
sprintf(buffer, "c2>>>=%d", (int)rotamt);
rotate(p2, rotamt); // ea.rotate(c2, random amount in [1-nSlots, nSlots-1])
ea.rotate(c2, rotamt);
if (verbose) {
CheckCtxt(c2, buffer);
debugCompare(ea, secretKey, p2, c2, epsilon);
}
negateVec(p1); // c1.negate()
c1.negate();
if (verbose) {
CheckCtxt(c1, "c1=-c1");
debugCompare(ea, secretKey, p1, c1, epsilon);
}
mul(p3, p2); // c3.multiplyBy(c2)
c3.multiplyBy(c2);
if (verbose) {
CheckCtxt(c3, "c3*=c2");
debugCompare(ea, secretKey, p3, c3, epsilon);
}
sub(p0, p3); // c0 -= c3
c0 -= c3;
if (verbose) {
CheckCtxt(c0, "c0=-c3");
debugCompare(ea, secretKey, p0, c0, epsilon);
}
}
c0.cleanUp();
c1.cleanUp();
c2.cleanUp();
c3.cleanUp();
FHE_NTIMER_STOP(Circuit);
vector<cx_double> pp0, pp1, pp2, pp3;
ea.decrypt(c0, secretKey, pp0);
ea.decrypt(c1, secretKey, pp1);
ea.decrypt(c2, secretKey, pp2);
ea.decrypt(c3, secretKey, pp3);
std::cout << "Test "<<nRounds<<" rounds of mixed operations, ";
if (cx_equals(pp0, p0,conv<double>(epsilon*c0.getPtxtMag()))
&& cx_equals(pp1, p1,conv<double>(epsilon*c1.getPtxtMag()))
&& cx_equals(pp2, p2,conv<double>(epsilon*c2.getPtxtMag()))
&& cx_equals(pp3, p3,conv<double>(epsilon*c3.getPtxtMag())))
std::cout << "PASS\n\n";
else {
std::cout << "FAIL:\n";
std::cout << " max(p0)="<<largestCoeff(p0)
<< ", max(pp0)="<<largestCoeff(pp0)
<< ", maxDiff="<<calcMaxDiff(p0,pp0) << endl;
std::cout << " max(p1)="<<largestCoeff(p1)
<< ", max(pp1)="<<largestCoeff(pp1)
<< ", maxDiff="<<calcMaxDiff(p1,pp1) << endl;
std::cout << " max(p2)="<<largestCoeff(p2)
<< ", max(pp2)="<<largestCoeff(pp2)
<< ", maxDiff="<<calcMaxDiff(p2,pp2) << endl;
std::cout << " max(p3)="<<largestCoeff(p3)
<< ", max(pp3)="<<largestCoeff(pp3)
<< ", maxDiff="<<calcMaxDiff(p3,pp3) << endl<<endl;
}
if (verbose) {
std::cout << endl;
printAllTimers();
std::cout << endl;
}
resetAllTimers();
}
OP_ERROR
SOP_Ocean::cookMySop(OP_Context &context)
{
float now = context.getTime();
//std::cout << "cook ocean, t = " << now << std::endl;
// lock inputs
if (lockInputs(context) >= UT_ERROR_ABORT )
{
return error();
}
GEO_Point *ppt;
UT_Interrupt *boss;
// Check to see that there hasn't been a critical error in cooking the SOP.
if (error() < UT_ERROR_ABORT)
{
boss = UTgetInterrupt();
// Start the interrupt server
boss->opStart("Updating Ocean");
duplicatePointSource(0,context);
int gridres = 1 << int(GRID_RES(now));
float stepsize = GRID_SIZE(now) / (float)gridres;
bool do_chop = CHOP(now);
bool do_jacobian = JACOBIAN(now);
bool do_normals = NORMALS(now) && !do_chop;
if (!_ocean || _ocean_needs_rebuild)
{
if (_ocean)
{
delete _ocean;
}
if (_ocean_context)
{
delete _ocean_context;
}
_ocean = new drw::Ocean(gridres,gridres,stepsize,stepsize,
V(0),L(0),1.0,W(0),1-DAMP(0),ALIGN(0),
DEPTH(0),SEED(0));
_ocean_scale = _ocean->get_height_normalize_factor();
_ocean_context = _ocean->new_context(true,do_chop,do_normals,do_jacobian);
_ocean_needs_rebuild = false;
// std::cout << "######### SOP, rebuilt ocean, norm_factor = " << _ocean_scale
// << " chop = " << do_chop
// << " norm = " << do_normals
// << " jacobian = " << do_jacobian
// << std::endl;
}
float chop_amount = CHOPAMOUNT(now);
// sum up the waves at this timestep
_ocean->update(TIME(now),*_ocean_context,true,do_chop,do_normals,do_jacobian,
_ocean_scale * SCALE(now),chop_amount);
bool linterp = ! INTERP(now);
// get our attribute indices
GA_RWAttributeRef normal_index;
GA_RWAttributeRef jminus_index;
GA_RWAttributeRef eminus_index;
if (do_normals)
{
normal_index = gdp->addNormalAttribute(GEO_POINT_DICT);
}
if (do_jacobian)
{
// jminus_index = gdp->addPointAttrib("mineigval",sizeof(float),GB_ATTRIB_FLOAT,0);
// eminus_index = gdp->addPointAttrib("mineigvec",sizeof(UT_Vector3),GB_ATTRIB_VECTOR,0);
jminus_index = gdp->addTuple(GA_STORE_REAL32,GA_ATTRIB_POINT,"mineigval",1,GA_Defaults(0));
eminus_index = gdp->addFloatTuple(GA_ATTRIB_POINT,"mineigvec",1,GA_Defaults(0));
}
// this is not that fast, can it be done quicker ???
GA_FOR_ALL_GPOINTS(gdp, ppt)
{
UT_Vector4 p = ppt->getPos();
if (linterp)
{
_ocean_context->eval_xz(p(0),p(2));
}
else
{
_ocean_context->eval2_xz(p(0),p(2));
}
if (do_chop)
{
p.assign( p(0) + _ocean_context->disp[0],
p(1) + _ocean_context->disp[1],
p(2) + _ocean_context->disp[2] );
}
else
{
// ppt->getPos()(1) += _ocean_context->disp[1];
UT_Vector4 tmp_p = ppt->getPos();
tmp_p(1) += _ocean_context->disp[1];
ppt->setPos(tmp_p);
}
if (do_normals)
{
/*
UT_Vector3* normal = (UT_Vector3*) ppt->castAttribData<UT_Vector3>(normal_index);
normal->assign(_ocean_context->normal[0],
_ocean_context->normal[1],
_ocean_context->normal[2]);
normal->normalize();
*/
ppt->getValue<UT_Vector3>(normal_index).assign(_ocean_context->normal[0],
_ocean_context->normal[1],
_ocean_context->normal[2]);
ppt->getValue<UT_Vector3>(normal_index).normalize();
}
if (do_jacobian)
{/*
float *js = (float*)ppt->castAttribData<float>(jminus_index);
*js = _ocean_context->Jminus;
UT_Vector3* eminus = (UT_Vector3*)ppt->castAttribData<UT_Vector3>(eminus_index);
eminus->assign(_ocean_context->Eminus[0],0,_ocean_context->Eminus[1]);
*/
ppt->setValue<float>(jminus_index,_ocean_context->Jminus);
ppt->getValue<UT_Vector3>(eminus_index).assign(_ocean_context->Eminus[0],0,_ocean_context->Eminus[1]);
}
ppt->setPos(p);
}