Line data    Source code

       1             : /**
       2             : * @file       Params.cpp
       3             : *
       4             : * @brief      Parameter class for Zerocoin.
       5             : *
       6             : * @author     Ian Miers, Christina Garman and Matthew Green
       7             : * @date       June 2013
       8             : *
       9             : * @copyright  Copyright 2013 Ian Miers, Christina Garman and Matthew Green
      10             : * @license    This project is released under the MIT license.
      11             : **/
      12             : // Copyright (c) 2017-2019 The PIVX Core developers
      13             : 
      14             : #include "Params.h"
      15             : #include "ParamGeneration.h"
      16             : 
      17             : namespace libzerocoin {
      18             : 
      19         116 : ZerocoinParams::ZerocoinParams(CBigNum N, uint32_t securityLevel) {
      20         116 :     this->zkp_hash_len = securityLevel;
      21         116 :     this->zkp_iterations = securityLevel;
      22             : 
      23         116 :     this->accumulatorParams.k_prime = ACCPROOF_KPRIME;
      24         116 :     this->accumulatorParams.k_dprime = ACCPROOF_KDPRIME;
      25             : 
      26             :     // Generate the parameters
      27         116 :     CalculateParams(*this, N, ZEROCOIN_PROTOCOL_VERSION, securityLevel);
      28             : 
      29         116 :     this->accumulatorParams.initialized = true;
      30         116 :     this->initialized = true;
      31         116 : }
      32             : 
      33         116 : AccumulatorAndProofParams::AccumulatorAndProofParams() {
      34         116 :     this->initialized = false;
      35         116 : }
      36             : 
      37         812 : IntegerGroupParams::IntegerGroupParams() {
      38         812 :     this->initialized = false;
      39         812 : }
      40             : 
      41           0 : CBigNum IntegerGroupParams::randomElement() const {
      42             :     // The generator of the group raised
      43             :     // to a random number less than the order of the group
      44             :     // provides us with a uniformly distributed random number.
      45           0 :     return this->g.pow_mod(CBigNum::randBignum(this->groupOrder),this->modulus);
      46             : }
      47             : 
      48             : } /* namespace libzerocoin */