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feat: add PrimalLPNParameter for ferret #13

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Merged
ujnss merged 1 commit into from
Jun 16, 2026
Merged

feat: add PrimalLPNParameter for ferret #13

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1 change: 1 addition & 0 deletions emp-ot/emp-ot/ferret/constants.h
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Expand Up @@ -25,6 +25,7 @@ class PrimalLPNParameter { public:
const static PrimalLPNParameter ferret_b13 = PrimalLPNParameter(10485760, 1280, 452000, 13, 470016, 918, 32768, 9);
const static PrimalLPNParameter ferret_b12 = PrimalLPNParameter(10268672, 2507, 238000, 12, 268800, 1050, 17384, 8);
const static PrimalLPNParameter ferret_b11 = PrimalLPNParameter(10180608, 4971, 124000, 11, 178944, 699, 17384, 8);
const static PrimalLPNParameter ferret_b10 = PrimalLPNParameter(1024*2048, 2048, 65536, 10, 86272, 337, 16384, 8);

}//namespace
#endif //EMP_FERRET_CONSTANTS_H__
6 changes: 3 additions & 3 deletions emp-zk/emp-zk/emp-zk-bool/emp-zk-bool.h
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Expand Up @@ -9,16 +9,16 @@

namespace emp {
template<typename IO>
inline void setup_zk_bool(IO** ios, int threads, int party, void * state = nullptr) {
inline void setup_zk_bool(IO** ios, int threads, int party, void * state = nullptr, const PrimalLPNParameter* lpn_param = &ferret_b10) {
CheatRecord::reset();
if(party == ALICE) {
ZKBoolCircExecPrv<IO> * t = new ZKBoolCircExecPrv<IO>();
CircuitExecution::circ_exec = t;
ProtocolExecution::prot_exec = new ZKProver<IO>(ios, threads, t, state);
ProtocolExecution::prot_exec = new ZKProver<IO>(ios, threads, t, state, lpn_param);
} else {
ZKBoolCircExecVer<IO> * t = new ZKBoolCircExecVer<IO>();
CircuitExecution::circ_exec = t;
ProtocolExecution::prot_exec = new ZKVerifier<IO>(ios, threads, t, state);
ProtocolExecution::prot_exec = new ZKVerifier<IO>(ios, threads, t, state, lpn_param);
}
}

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13 changes: 9 additions & 4 deletions emp-zk/emp-zk/emp-zk-bool/ostriple.h
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Expand Up @@ -32,14 +32,19 @@ class OSTriple {
ThreadPool *pool = nullptr;
void * ferret_state = nullptr;

OSTriple (int party, int threads, IO **ios, void * state = nullptr) {
OSTriple (int party, int threads, IO **ios, void * state = nullptr, const PrimalLPNParameter* lpn_param = nullptr) {
this->party = party;
this->threads = threads;
this->ferret_state = state;
// initiate Iterative COT with regular noise and security against malicious adv
if(ferret_state == nullptr)
// ferret = new FerretCOT<IO>(3-party, threads, ios, true);
ferret = new FerretCOT<IO>(3-party, threads, ios, true, true, PrimalLPNParameter(1024*2048, 2048, 65536, 10, 86272, 337, 16384, 8));
if(ferret_state == nullptr) {
if (lpn_param == nullptr) {
ferret = new FerretCOT<IO>(3-party, threads, ios, true, true, ferret_b10);
}
else {
ferret = new FerretCOT<IO>(3-party, threads, ios, true, true, *lpn_param);
}
}
else {
ferret = new FerretCOT<IO>(3-party, threads, ios, true, false);
ferret->disassemble_state(ferret_state, 10400000);
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4 changes: 2 additions & 2 deletions emp-zk/emp-zk/emp-zk-bool/zk_prover.h
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Expand Up @@ -35,10 +35,10 @@ class ZKProver: public ProtocolExecution {
OSTriple<IO> *ostriple = nullptr;
PolyProof<IO> *polyproof = nullptr;
ZKBoolCircExecPrv<IO> *gen = nullptr;
ZKProver(IO** ios, int threads, ZKBoolCircExecPrv<IO> *t, void * state): ProtocolExecution(ALICE) {
ZKProver(IO** ios, int threads, ZKBoolCircExecPrv<IO> *t, void * state, const PrimalLPNParameter* lpn_param = &ferret_b10): ProtocolExecution(ALICE) {
this->io = ios[0];
this->gen = t;
ostriple = new OSTriple<IO>(ALICE, threads, ios, state);
ostriple = new OSTriple<IO>(ALICE, threads, ios, state, lpn_param);
polyproof = new PolyProof<IO>(ALICE, ios[0], ostriple->ferret);
t->template set_ostriple<IO>(ostriple);
t->polyproof = this->polyproof;
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4 changes: 2 additions & 2 deletions emp-zk/emp-zk/emp-zk-bool/zk_verifier.h
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Expand Up @@ -46,9 +46,9 @@ class ZKVerifier: public ProtocolExecution {
OSTriple<IO>* ostriple = nullptr;
PolyProof<IO> *polyproof = nullptr;
ZKBoolCircExecVer<IO> *eva = nullptr;
ZKVerifier(IO **ios, int threads, ZKBoolCircExecVer<IO> *t, void * state): ProtocolExecution(BOB) {
ZKVerifier(IO **ios, int threads, ZKBoolCircExecVer<IO> *t, void * state, const PrimalLPNParameter* lpn_param = &ferret_b10): ProtocolExecution(BOB) {
this->io = ios[0];
ostriple = new OSTriple<IO>(BOB, threads, ios, state);
ostriple = new OSTriple<IO>(BOB, threads, ios, state, lpn_param);
polyproof = new PolyProof<IO>(BOB, ios[0], ostriple->ferret);
polyproof->delta = ostriple->delta;
t->template set_ostriple<IO>(ostriple);
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