1 /// \file ParamGeneration.h
3 /// \brief Parameter generation routines for Zerocoin.
5 /// \author Ian Miers, Christina Garman and Matthew Green
8 /// \copyright Copyright 2013 Ian Miers, Christina Garman and Matthew Green
9 /// \license This project is released under the MIT license.
11 #ifndef PARAMGENERATION_H_
12 #define PARAMGENERATION_H_
14 namespace libzerocoin {
16 void CalculateParams(Params ¶ms, Bignum N, std::string aux, uint32_t securityLevel);
17 void calculateGroupParamLengths(uint32_t maxPLen, uint32_t securityLevel,
18 uint32_t *pLen, uint32_t *qLen);
21 #define STRING_COMMIT_GROUP "COIN_COMMITMENT_GROUP"
22 #define STRING_AVC_GROUP "ACCUMULATED_VALUE_COMMITMENT_GROUP"
23 #define STRING_AVC_ORDER "ACCUMULATED_VALUE_COMMITMENT_ORDER"
24 #define STRING_AIC_GROUP "ACCUMULATOR_INTERNAL_COMMITMENT_GROUP"
25 #define STRING_QRNCOMMIT_GROUPG "ACCUMULATOR_QRN_COMMITMENT_GROUPG"
26 #define STRING_QRNCOMMIT_GROUPH "ACCUMULATOR_QRN_COMMITMENT_GROUPH"
27 #define ACCUMULATOR_BASE_CONSTANT 31
28 #define MAX_PRIMEGEN_ATTEMPTS 10000
29 #define MAX_ACCUMGEN_ATTEMPTS 10000
30 #define MAX_GENERATOR_ATTEMPTS 10000
31 #define NUM_SCHNORRGEN_ATTEMPTS 10000
34 bool primalityTestByTrialDivision(uint32_t candidate);
35 uint256 calculateSeed(Bignum modulus, std::string auxString, uint32_t securityLevel, std::string groupName);
36 uint256 calculateGeneratorSeed(uint256 seed, uint256 pSeed, uint256 qSeed, std::string label, uint32_t index, uint32_t count);
38 uint256 calculateHash(uint256 input);
39 IntegerGroupParams deriveIntegerGroupParams(uint256 seed, uint32_t pLen, uint32_t qLen);
40 IntegerGroupParams deriveIntegerGroupFromOrder(Bignum &groupOrder);
41 void calculateGroupModulusAndOrder(uint256 seed, uint32_t pLen, uint32_t qLen,
42 Bignum *resultModulus, Bignum *resultGroupOrder,
43 uint256 *resultPseed, uint256 *resultQseed);
44 Bignum calculateGroupGenerator(uint256 seed, uint256 pSeed, uint256 qSeed, Bignum modulus,
45 Bignum groupOrder, uint32_t index);
46 Bignum generateRandomPrime(uint32_t primeBitLen, uint256 in_seed, uint256 *out_seed,
47 uint32_t *prime_gen_counter);
48 Bignum generateIntegerFromSeed(uint32_t numBits, uint256 seed, uint32_t *numIterations);
49 bool primalityTestByTrialDivision(uint32_t candidate);
51 }/* namespace libzerocoin */
53 #endif /* PARAMGENERATION_H_ */