int main(int argc, char *argv[]) {
long m, p, r, L, R;
ArgMapping argmap;
MDL::Timer timer;
argmap.arg("m", m, "m");
argmap.arg("L", L, "L");
argmap.arg("p", p, "p");
argmap.arg("r", r, "r");
argmap.arg("R", R, "R");
argmap.parse(argc, argv);
timer.start();
FHEcontext context(m, p, r);
buildModChain(context, L);
FHESecKey sk(context);
sk.GenSecKey(64);
addSome1DMatrices(sk);
FHEPubKey pk = sk;
auto G = context.alMod.getFactorsOverZZ()[0];
EncryptedArray ea(context, G);
timer.end();
printf("slots %ld\n", ea.size());
printf("Key Gen %f\n", timer.second());
auto data = load_csv("adult.data", R);
benchmark(ea, pk, sk, data);
}
int main(int argc, char *argv[]) {
#ifdef USE_NETWORK
ArgMapping mapping;
long role = 0;
std::string host = "127.0.0.1";
mapping.arg("m", gM, "m");
mapping.arg("p", gP, "p");
mapping.arg("r", gR, "r");
mapping.arg("L", gL, "L");
mapping.arg("R", role, "role, 0:server, 1:client");
mapping.arg("H", host, "host");
mapping.arg("C", gC, "cipher to send");
mapping.parse(argc, argv);
if (role == 0) {
int sock = nn_socket(AF_SP, NN_REP);
if (nn_bind(sock, "tcp://*:12345") < 0) {
printf("%s\n", nn_strerror(errno));
return -1;
}
printf("SID %d\n", sock);
act_server(sock);
} else if (role == 1){
int sock = nn_socket(AF_SP, NN_REQ);
std::string h = "tcp://" + host + ":12345";
if (nn_connect(sock, h.c_str()) < 0) {
printf("%s\nn", nn_strerror(errno));
return -1;
}
printf("SID %d\n", sock);
act_client(sock);
}
#endif
return 0;
}
int main(int argc, char *argv[])
{
ArgMapping amap;
long m=17;
amap.arg("m", m, "cyclotomic index");
amap.note("e.g., m=2047");
long p=2;
amap.arg("p", p, "plaintext base");
long r=1;
amap.arg("r", r, "lifting");
Vec<long> gens0;
amap.arg("gens", gens0, "use specified vector of generators", NULL);
amap.note("e.g., gens='[562 1871 751]'");
Vec<long> ords0;
amap.arg("ords", ords0, "use specified vector of orders", NULL);
amap.note("e.g., ords='[4 2 -4]', negative means 'bad'");
amap.parse(argc, argv);
cout << "m = " << m << ", p = " << p << ", r = " << r << endl;
vector<long> f;
factorize(f,m);
cout << "factoring "<<m<<" gives [";
for (unsigned long i=0; i<f.size(); i++)
cout << f[i] << " ";
cout << "]\n";
vector<long> gens1, ords1;
convert(gens1, gens0);
convert(ords1, ords0);
PAlgebra al(m, p, gens1, ords1);
al.printout();
cout << "\n";
PAlgebraMod almod(al, r);
FHEcontext context(m, p, r);
buildModChain(context, 5, 2);
stringstream s1;
writeContextBase(s1, context);
s1 << context;
string s2 = s1.str();
cout << s2 << endl;
stringstream s3(s2);
unsigned long m1, p1, r1;
vector<long> gens, ords;
readContextBase(s3, m1, p1, r1, gens, ords);
FHEcontext c1(m1, p1, r1, gens, ords);
s3 >> c1;
if (context == c1)
cout << "equal\n";
else
cout << "not equal\n";
return 0;
}
int main(int argc, char *argv[])
{
// Commandline setup
ArgMapping amap;
long m=16;
long r=8;
long L=0;
double epsilon=0.01; // Accepted accuracy
long R=1;
long seed=0;
bool debug = false;
amap.arg("m", m, "Cyclotomic index");
amap.note("e.g., m=1024, m=2047");
amap.arg("r", r, "Bits of precision");
amap.arg("R", R, "number of rounds");
amap.arg("L", L, "Number of bits in modulus", "heuristic");
amap.arg("ep", epsilon, "Accepted accuracy");
amap.arg("seed", seed, "PRG seed");
amap.arg("verbose", verbose, "more printouts");
amap.arg("debug", debug, "for debugging");
amap.parse(argc, argv);
if (seed)
NTL::SetSeed(ZZ(seed));
if (R<=0) R=1;
if (R<=2)
L = 100*R;
else
L = 220*(R-1);
if (verbose) {
cout << "** m="<<m<<", #rounds="<<R<<", |q|="<<L
<< ", epsilon="<<epsilon<<endl;
}
epsilon /= R;
try{
// FHE setup keys, context, SKMs, etc
FHEcontext context(m, /*p=*/-1, r);
context.scale=4;
buildModChain(context, L, /*c=*/2);
FHESecKey secretKey(context);
secretKey.GenSecKey(); // A +-1/0 secret key
addSome1DMatrices(secretKey); // compute key-switching matrices
const FHEPubKey publicKey = secretKey;
const EncryptedArrayCx& ea = context.ea->getCx();
if (verbose) {
ea.getPAlgebra().printout();
cout << "r = " << context.alMod.getR() << endl;
cout << "ctxtPrimes="<<context.ctxtPrimes
<< ", specialPrimes="<<context.specialPrimes<<endl<<endl;
}
if (debug) {
dbgKey = & secretKey;
dbgEa = (EncryptedArray*) context.ea;
}
// Run the tests.
testBasicArith(publicKey, secretKey, ea, epsilon);
testComplexArith(publicKey, secretKey, ea, epsilon);
testRotsNShifts(publicKey, secretKey, ea, epsilon);
testGeneralOps(publicKey, secretKey, ea, epsilon*R, R);
}
catch (exception& e) {
cerr << e.what() << endl;
cerr << "***Major FAIL***" << endl;
}
return 0;
}
// Testing the I/O of the important classes of the library
// (context, keys, ciphertexts).
int main(int argc, char *argv[])
{
ArgMapping amap;
long r=1;
long p=2;
long c = 2;
long w = 64;
long L = 5;
long mm=0;
amap.arg("p", p, "plaintext base");
amap.arg("r", r, "lifting");
amap.arg("c", c, "number of columns in the key-switching matrices");
amap.arg("m", mm, "cyclotomic index","{31,127,1023}");
amap.parse(argc, argv);
bool useTable = (mm==0 && p==2);
long ptxtSpace = power_long(p,r);
long numTests = useTable? N_TESTS : 1;
std::unique_ptr<FHEcontext> contexts[numTests];
std::unique_ptr<FHESecKey> sKeys[numTests];
std::unique_ptr<Ctxt> ctxts[numTests];
std::unique_ptr<EncryptedArray> eas[numTests];
vector<ZZX> ptxts[numTests];
// first loop: generate stuff and write it to cout
// open file for writing
{fstream keyFile("iotest.txt", fstream::out|fstream::trunc);
assert(keyFile.is_open());
for (long i=0; i<numTests; i++) {
long m = (mm==0)? ms[i][1] : mm;
cout << "Testing IO: m="<<m<<", p^r="<<p<<"^"<<r<<endl;
Vec<long> mvec(INIT_SIZE,2);
mvec[0] = ms[i][4]; mvec[1] = ms[i][5];
vector<long> gens(2);
gens[0] = ms[i][6]; gens[1] = ms[i][7];
vector<long> ords(2);
ords[0] = ms[i][8]; ords[1] = ms[i][9];
if (useTable && gens[0]>0)
contexts[i].reset(new FHEcontext(m, p, r, gens, ords));
else
contexts[i].reset(new FHEcontext(m, p, r));
contexts[i]->zMStar.printout();
buildModChain(*contexts[i], L, c); // Set the modulus chain
if (mm==0 && m==1023) contexts[i]->makeBootstrappable(mvec);
// Output the FHEcontext to file
writeContextBase(keyFile, *contexts[i]);
writeContextBase(cout, *contexts[i]);
keyFile << *contexts[i] << endl;
sKeys[i].reset(new FHESecKey(*contexts[i]));
const FHEPubKey& publicKey = *sKeys[i];
sKeys[i]->GenSecKey(w,ptxtSpace); // A Hamming-weight-w secret key
addSome1DMatrices(*sKeys[i]);// compute key-switching matrices that we need
eas[i].reset(new EncryptedArray(*contexts[i]));
long nslots = eas[i]->size();
// Output the secret key to file, twice. Below we will have two copies
// of most things.
keyFile << *sKeys[i] << endl;;
keyFile << *sKeys[i] << endl;;
vector<ZZX> b;
long p2r = eas[i]->getContext().alMod.getPPowR();
ZZX poly = RandPoly(0,to_ZZ(p2r)); // choose a random constant polynomial
eas[i]->decode(ptxts[i], poly);
ctxts[i].reset(new Ctxt(publicKey));
eas[i]->encrypt(*ctxts[i], publicKey, ptxts[i]);
eas[i]->decrypt(*ctxts[i], *sKeys[i], b);
assert(ptxts[i].size() == b.size());
for (long j = 0; j < nslots; j++) assert (ptxts[i][j] == b[j]);
// output the plaintext
keyFile << "[ ";
for (long j = 0; j < nslots; j++) keyFile << ptxts[i][j] << " ";
keyFile << "]\n";
eas[i]->encode(poly,ptxts[i]);
keyFile << poly << endl;
// Output the ciphertext to file
keyFile << *ctxts[i] << endl;
keyFile << *ctxts[i] << endl;
cerr << "okay " << i << endl<< endl;
}
keyFile.close();}
cerr << "so far, so good\n\n";
// second loop: read from input and repeat the computation
// open file for read
{fstream keyFile("iotest.txt", fstream::in);
for (long i=0; i<numTests; i++) {
// Read context from file
unsigned long m1, p1, r1;
vector<long> gens, ords;
readContextBase(keyFile, m1, p1, r1, gens, ords);
FHEcontext tmpContext(m1, p1, r1, gens, ords);
keyFile >> tmpContext;
assert (*contexts[i] == tmpContext);
cerr << i << ": context matches input\n";
// We define some things below wrt *contexts[i], not tmpContext.
// This is because the various operator== methods check equality of
// references, not equality of the referenced FHEcontext objects.
FHEcontext& context = *contexts[i];
FHESecKey secretKey(context);
FHESecKey secretKey2(tmpContext);
const FHEPubKey& publicKey = secretKey;
const FHEPubKey& publicKey2 = secretKey2;
keyFile >> secretKey;
keyFile >> secretKey2;
assert(secretKey == *sKeys[i]);
cerr << " secret key matches input\n";
EncryptedArray ea(context);
EncryptedArray ea2(tmpContext);
long nslots = ea.size();
// Read the plaintext from file
vector<ZZX> a;
a.resize(nslots);
assert(nslots == (long)ptxts[i].size());
seekPastChar(keyFile, '['); // defined in NumbTh.cpp
for (long j = 0; j < nslots; j++) {
keyFile >> a[j];
assert(a[j] == ptxts[i][j]);
}
seekPastChar(keyFile, ']');
cerr << " ptxt matches input\n";
// Read the encoded plaintext from file
ZZX poly1, poly2;
keyFile >> poly1;
eas[i]->encode(poly2,a);
assert(poly1 == poly2);
cerr << " eas[i].encode(a)==poly1 okay\n";
ea.encode(poly2,a);
assert(poly1 == poly2);
cerr << " ea.encode(a)==poly1 okay\n";
ea2.encode(poly2,a);
assert(poly1 == poly2);
cerr << " ea2.encode(a)==poly1 okay\n";
eas[i]->decode(a,poly1);
assert(nslots == (long)a.size());
for (long j = 0; j < nslots; j++) assert(a[j] == ptxts[i][j]);
cerr << " eas[i].decode(poly1)==ptxts[i] okay\n";
ea.decode(a,poly1);
assert(nslots == (long)a.size());
for (long j = 0; j < nslots; j++) assert(a[j] == ptxts[i][j]);
cerr << " ea.decode(poly1)==ptxts[i] okay\n";
ea2.decode(a,poly1);
assert(nslots == (long)a.size());
for (long j = 0; j < nslots; j++) assert(a[j] == ptxts[i][j]);
cerr << " ea2.decode(poly1)==ptxts[i] okay\n";
// Read ciperhtext from file
Ctxt ctxt(publicKey);
Ctxt ctxt2(publicKey2);
keyFile >> ctxt;
keyFile >> ctxt2;
assert(ctxts[i]->equalsTo(ctxt,/*comparePkeys=*/false));
cerr << " ctxt matches input\n";
sKeys[i]->Decrypt(poly2,*ctxts[i]);
assert(poly1 == poly2);
cerr << " sKeys[i]->decrypt(*ctxts[i]) == poly1 okay\n";
secretKey.Decrypt(poly2,*ctxts[i]);
assert(poly1 == poly2);
cerr << " secretKey.decrypt(*ctxts[i]) == poly1 okay\n";
secretKey.Decrypt(poly2,ctxt);
assert(poly1 == poly2);
cerr << " secretKey.decrypt(ctxt) == poly1 okay\n";
secretKey2.Decrypt(poly2,ctxt2);
assert(poly1 == poly2);
cerr << " secretKey2.decrypt(ctxt2) == poly1 okay\n";
eas[i]->decrypt(ctxt, *sKeys[i], a);
assert(nslots == (long)a.size());
for (long j = 0; j < nslots; j++) assert(a[j] == ptxts[i][j]);
cerr << " eas[i].decrypt(ctxt, *sKeys[i])==ptxts[i] okay\n";
ea.decrypt(ctxt, secretKey, a);
assert(nslots == (long)a.size());
for (long j = 0; j < nslots; j++) assert(a[j] == ptxts[i][j]);
cerr << " ea.decrypt(ctxt, secretKey)==ptxts[i] okay\n";
ea2.decrypt(ctxt2, secretKey2, a);
assert(nslots == (long)a.size());
for (long j = 0; j < nslots; j++) assert(a[j] == ptxts[i][j]);
cerr << " ea2.decrypt(ctxt2, secretKey2)==ptxts[i] okay\n";
cerr << "test "<<i<<" okay\n\n";
}}
unlink("iotest.txt"); // clean up before exiting
}
/* Usage: Test_EvalMap_x.exe [ name=value ]...
* p plaintext base [ default=2 ]
* r lifting [ default=1 ]
* c number of columns in the key-switching matrices [ default=2 ]
* k security parameter [ default=80 ]
* L # of bits in the modulus chain
* s minimum number of slots [ default=0 ]
* seed PRG seed [ default=0 ]
* mvec use specified factorization of m
* e.g., mvec='[5 3 187]'
* gens use specified vector of generators
* e.g., gens='[562 1871 751]'
* ords use specified vector of orders
* e.g., ords='[4 2 -4]', negative means 'bad'
*/
int main(int argc, char *argv[])
{
ArgMapping amap;
long p=2;
amap.arg("p", p, "plaintext base");
long r=1;
amap.arg("r", r, "lifting");
long c=2;
amap.arg("c", c, "number of columns in the key-switching matrices");
long k=80;
amap.arg("k", k, "security parameter");
long L=300;
amap.arg("L", L, "# of bits in the modulus chain");
long s=0;
amap.arg("s", s, "minimum number of slots");
long seed=0;
amap.arg("seed", seed, "PRG seed");
Vec<long> mvec;
amap.arg("mvec", mvec, "use specified factorization of m", NULL);
amap.note("e.g., mvec='[7 3 221]'");
Vec<long> gens;
amap.arg("gens", gens, "use specified vector of generators", NULL);
amap.note("e.g., gens='[3979 3095 3760]'");
Vec<long> ords;
amap.arg("ords", ords, "use specified vector of orders", NULL);
amap.note("e.g., ords='[6 2 -8]', negative means 'bad'");
amap.arg("dry", dry, "a dry-run flag to check the noise");
long nthreads=1;
amap.arg("nthreads", nthreads, "number of threads");
amap.arg("noPrint", noPrint, "suppress printouts");
long useCache=0;
amap.arg("useCache", useCache, "0: zzX cache, 2: DCRT cache");
amap.parse(argc, argv);
SetNumThreads(nthreads);
SetSeed(conv<ZZ>(seed));
TestIt(p, r, c, k, L, mvec, gens, ords, useCache);
}
NTL_CLIENT
//namespace NTL { extern double ip_time; }
int main(int argc, char **argv)
{
ArgMapping amap;
long n = 1024;
amap.arg("n", n, "degree bound");
long l = 1024;
amap.arg("l", l, "coeff bound");
long nt = 1;
amap.arg("nt", nt, "num threads");
amap.parse(argc, argv);
cerr << "\n\n=============================\n\n";
cerr << "n=" << n << "\n";
cerr << "l=" << l << "\n";
cerr << "nt=" << nt << "\n";
SetSeed(ZZ(0));
SetNumThreads(nt);
ZZ p;
RandomPrime(p, l);
ZZ_p::init(p);
ZZ_pX f;
random(f, n);
SetCoeff(f, n);
Vec< Pair<ZZ_pX, long> > fac;
double t;
ZZ_pXFileThresh = 1e9;
FILE *fp;
unsigned long A[4], B[4];
int loadavg;
fp = fopen("/proc/stat","r");
fscanf(fp,"cpu %lu %lu %lu %lu",&A[0],&A[1],&A[2],&A[3]);
fclose(fp);
t = GetTime();
CanZass(fac, f, 1);
t = GetTime()-t;
double NTLTime = t;
fp = fopen("/proc/stat","r");
fscanf(fp,"cpu %lu %lu %lu %lu",&B[0],&B[1],&B[2],&B[3]);
fclose(fp);
// we multiply by 20 -- that's the total number of cores
loadavg = int(100.0*20.0*double((B[0]+B[1]+B[2]) - (A[0]+A[1]+A[2])) /
double((B[0]+B[1]+B[2]+B[3]) - (A[0]+A[1]+A[2]+A[3])));
fprintf(stderr, "CPU utilization: %d\%\n",loadavg);
struct rusage rusage;
getrusage( RUSAGE_SELF, &rusage );
cerr << "MAX_RSS="<<rusage.ru_maxrss << "KB" << endl;
cerr << "Fac: " << t << "\n";
//cerr << "ip_time: " << ip_time << "\n";
delete NTLThreadPool;
NTLThreadPool = 0;
}
int main(int argc, char *argv[])
{
ArgMapping amap;
long p=2;
long r=1;
long c=3;
long L=600;
long N=0;
long t=0;
long nthreads=1;
long seed=0;
long useCache=1;
amap.arg("p", p, "plaintext base");
amap.arg("r", r, "exponent");
amap.note("p^r is the plaintext-space modulus");
amap.arg("c", c, "number of columns in the key-switching matrices");
amap.arg("L", L, "# of levels in the modulus chain");
amap.arg("N", N, "lower-bound on phi(m)");
amap.arg("t", t, "Hamming weight of recryption secret key", "heuristic");
amap.arg("dry", dry, "dry=1 for a dry-run");
amap.arg("nthreads", nthreads, "number of threads");
amap.arg("seed", seed, "random number seed");
amap.arg("noPrint", noPrint, "suppress printouts");
amap.arg("useCache", useCache, "0: zzX cache, 1: DCRT cache");
amap.arg("force_bsgs", fhe_test_force_bsgs);
amap.arg("force_hoist", fhe_test_force_hoist);
// amap.arg("disable_intFactor", fhe_disable_intFactor);
amap.arg("chen_han", fhe_force_chen_han);
amap.arg("debug", debug, "generate debugging output");
amap.arg("scale", scale, "scale parameter");
amap.parse(argc, argv);
if (seed)
SetSeed(ZZ(seed));
SetNumThreads(nthreads);
for (long i=0; i<(long)num_mValues; i++)
if (mValues[i][0]==p && mValues[i][1]>=N) {
TestIt(i,p,r,L,c,t,useCache);
break;
}
return 0;
}
int main(int argc, char *argv[])
{
ArgMapping amap;
bool dry=false;
amap.arg("dry", dry, "dry=1 for a dry-run");
long m=2047;
amap.arg("m", m, "cyclotomic ring");
long p=2;
amap.arg("p", p, "plaintext base");
long r=1;
amap.arg("r", r, "lifting");
long d=1;
amap.arg("d", d, "degree of the field extension");
amap.note("d == 0 => factors[0] defines extension");
long L=3;
amap.arg("L", L, "# of levels in the modulus chain", "heuristic");
long bnd = 64;
amap.arg("bnd", bnd, "recursion bound for replication");
long B = 0;
amap.arg("B", B, "bound for # of replications", "all");
amap.parse(argc, argv);
setDryRun(dry);
TestIt(m, p, r, d, L, bnd, B);
cout << endl;
}
int main(int argc, char *argv[])
{
ArgMapping amap;
amap.arg("noPrint", noPrint, "suppress printouts");
long m=16;
amap.arg("m", m, "cyclotomic index");
amap.note("e.g., m=1024, m=2047");
long r=8;
amap.arg("r", r, "bit of precision");
amap.parse(argc, argv);
if (!noPrint) {
vector<long> f;
factorize(f,m);
cout << "r="<<r<<", factoring "<<m<<" gives [";
for (unsigned long i=0; i<f.size(); i++)
cout << f[i] << " ";
cout << "]\n";
}
FHEcontext context(m, /*p=*/-1, r);
buildModChain(context, 5, 2);
const EncryptedArrayCx& ea = context.ea->getCx();
if (!noPrint)
ea.getPAlgebra().printout();
#ifdef DEBUG_PRINTOUT
vector<cx_double> vc1;
ea.random(vc1);
cout << "random complex vc1=";
printVec(cout,vc1,8)<<endl;
vector<double> vd;
ea.random(vd);
cout << "random real vd=";
printVec(cout,vd,8)<<endl;
#endif
vector<double> vl;
ea.random(vl);
vl[1] = -1; // ensure that this is not the zero vector
#ifdef DEBUG_PRINTOUT
cout << "random int v=";
printVec(cout,vl,8)<<endl;
#endif
zzX poly;
double factor = ea.encode(poly, vl, 1.0);
if (!noPrint) {
ZZX poly2;
convert(poly2, poly);
cout << " encoded into a degree-"<<NTL::deg(poly2)<<" polynomial\n";
}
vector<double> vd2;
ea.decode(vd2, poly, factor);
#ifdef DEBUG_PRINTOUT
cout << " decoded into vd2=";
printVec(cout,vd2,8)<<endl;
#endif
assert(lsize(vl)==lsize(vd2));
double maxDiff = 0.0;
for (long i=0; i<lsize(vl); i++) {
double diffAbs = std::abs(vl[i]-vd2[i]);
if (diffAbs > maxDiff)
maxDiff = diffAbs;
}
cout << ((maxDiff>0.1)? "BAD?" : "GOOD?")
<< " max |v-vd2|_{infty}="<<maxDiff
<< endl;
return 0;
}
int main(int argc, char *argv[])
{
ArgMapping amap;
long m=53;
amap.arg("m", m, "use specified value as modulus");
long p=17;
amap.arg("p", p, "plaintext base");
long r=1;
amap.arg("r", r, "lifting");
long levels=5;
amap.arg("L", levels, "levels");
long nb_coeffs=5;
amap.arg("n", nb_coeffs, "nb coefficients to extract");
amap.parse(argc, argv);
cout << "\n\n******** generate parameters"
<< " m=" << m
<< ", p=" << p
<< ", r=" << r
<< ", n=" << nb_coeffs
<< endl;
setTimersOn();
FHEcontext context(m, p, r);
buildModChain(context, /*L=*/levels);
// cout << context << endl;
// context.zMStar.printout();
// cout << endl;
cout << "Generating keys and key-switching matrices... " << std::flush;
FHESecKey secretKey(context);
secretKey.GenSecKey(/*w=*/64);// A Hamming-weight-w secret key
addFrbMatrices(secretKey); // compute key-switching matrices that we need
add1DMatrices(secretKey); // compute key-switching matrices that we need
const FHEPubKey& publicKey = secretKey;
cout << "done\n";
resetAllTimers();
EncryptedArray ea = *(context.ea);
ea.buildLinPolyMat(false);
Ctxt ctxt(publicKey);
NewPlaintextArray ptxt(ea);
random(ea, ptxt);
// ea.encrypt(ctxt, publicKey, ptxt);
ea.skEncrypt(ctxt, secretKey, ptxt);
cout << "Extracting " << nb_coeffs << " coefficients...";
vector<Ctxt> coeffs;
extractCoeffs(ea, coeffs, ctxt, nb_coeffs);
cout << "done\n";
vector<ZZX> ptxtDec;
ea.decrypt(ctxt, secretKey, ptxtDec);
for (long i=0; i<(long)coeffs.size(); i++) {
if (!coeffs[i].isCorrect()) {
cerr << " potential decryption error for "<<i<<"th coeffs " << endl;
CheckCtxt(coeffs[i], "");
exit(0);
}
vector<ZZX> pCoeffs;
ea.decrypt(coeffs[i], secretKey, pCoeffs);
assert(pCoeffs.size() == ptxtDec.size());
for (int j = 0; j < pCoeffs.size(); ++j) {
if (coeff(pCoeffs[j], 0) != coeff(ptxtDec[j], i)) {
cerr << "error: extracted coefficient " << i << " from "
"slot " << j << " is " << coeff(pCoeffs[j], 0) << " instead of " <<
coeff(ptxtDec[j], i) << endl;
exit(0);
}
}
}
cerr << "Extracted coefficient successfully verified!\n";
}