X-Git-Url: https://git.novaco.in/?a=blobdiff_plain;f=src%2Fbignum.h;h=3730b47da95a376f47c114cc9eaaf6c4a103cc0b;hb=47fbd81219787fb8331663cf25fde163f87287b8;hp=35708406c6fdea749bece72d3e947ef0eed696be;hpb=e69d227d0d466a1426be560b628cf788eb09835a;p=novacoin.git diff --git a/src/bignum.h b/src/bignum.h index 3570840..3730b47 100644 --- a/src/bignum.h +++ b/src/bignum.h @@ -47,50 +47,65 @@ public: /** C++ wrapper for BIGNUM (OpenSSL bignum) */ -class CBigNum : public BIGNUM +class CBigNum { +private: + BIGNUM* bn; public: CBigNum() { - BN_init(this); + bn = BN_new(); } CBigNum(const CBigNum& b) { - BN_init(this); - if (!BN_copy(this, &b)) + BIGNUM *dup = BN_dup(b.bn); + if (!dup) { - BN_clear_free(this); - throw bignum_error("CBigNum::CBigNum(const CBigNum&) : BN_copy failed"); + throw bignum_error("CBigNum::CBigNum(const CBigNum&) : BN_dup failed"); } + bn = dup; } CBigNum& operator=(const CBigNum& b) { - if (!BN_copy(this, &b)) - throw bignum_error("CBigNum::operator= : BN_copy failed"); + BIGNUM *dup = BN_dup(b.bn); + if (!dup) + { + throw bignum_error("CBigNum::operator= : BN_dup failed"); + } + bn = dup; return (*this); } + CBigNum(const BIGNUM *bnp) { + BIGNUM *dup = BN_dup(bnp); + if (!dup) + { + throw bignum_error("CBigNum::CBigNum(const BIGNUM*) : BN_dup failed"); + } + bn = dup; + } + ~CBigNum() { - BN_clear_free(this); + BN_clear_free(bn); } - CBigNum(int8_t n) { BN_init(this); if (n >= 0) setuint32(n); else setint64(n); } - CBigNum(int16_t n) { BN_init(this); if (n >= 0) setuint32(n); else setint64(n); } - CBigNum(int32_t n) { BN_init(this); if (n >= 0) setuint32(n); else setint64(n); } - CBigNum(int64_t n) { BN_init(this); if (n >= 0) setuint64(n); else setint64(n); } + CBigNum(int8_t n) { bn = BN_new(); if (n >= 0) setuint32(n); else setint64(n); } + CBigNum(int16_t n) { bn = BN_new(); if (n >= 0) setuint32(n); else setint64(n); } + CBigNum(int32_t n) { bn = BN_new(); if (n >= 0) setuint32(n); else setint64(n); } + CBigNum(int64_t n) { bn = BN_new(); if (n >= 0) setuint64(n); else setint64(n); } - CBigNum(uint8_t n) { BN_init(this); setuint32(n); } - CBigNum(uint16_t n) { BN_init(this); setuint32(n); } - CBigNum(uint32_t n) { BN_init(this); setuint32(n); } - CBigNum(uint64_t n) { BN_init(this); setuint64(n); } + CBigNum(uint8_t n) { bn = BN_new(); setuint32(n); } + CBigNum(uint16_t n) { bn = BN_new(); setuint32(n); } + CBigNum(uint32_t n) { bn = BN_new(); setuint32(n); } + CBigNum(uint64_t n) { bn = BN_new(); setuint64(n); } - explicit CBigNum(uint256 n) { BN_init(this); setuint256(n); } + explicit CBigNum(uint256 n) { bn = BN_new(); setuint256(n); } explicit CBigNum(const std::vector& vch) { - BN_init(this); + bn = BN_new(); setvch(vch); } @@ -101,7 +116,7 @@ public: */ static CBigNum randBignum(const CBigNum& range) { CBigNum ret; - if(!BN_rand_range(&ret, &range)){ + if(!BN_rand_range(ret.bn, range.bn)){ throw bignum_error("CBigNum:rand element : BN_rand_range failed"); } return ret; @@ -113,7 +128,7 @@ public: */ static CBigNum RandKBitBigum(const uint32_t k){ CBigNum ret; - if(!BN_rand(&ret, k, -1, 0)){ + if(!BN_rand(ret.bn, k, -1, 0)){ throw bignum_error("CBigNum:rand element : BN_rand failed"); } return ret; @@ -124,25 +139,25 @@ public: * @return the size */ int bitSize() const{ - return BN_num_bits(this); + return BN_num_bits(bn); } void setuint32(uint32_t n) { - if (!BN_set_word(this, n)) + if (!BN_set_word(bn, n)) throw bignum_error("CBigNum conversion from uint32_t : BN_set_word failed"); } uint32_t getuint32() const { - return BN_get_word(this); + return BN_get_word(bn); } int32_t getint32() const { - uint64_t n = BN_get_word(this); - if (!BN_is_negative(this)) + uint64_t n = BN_get_word(bn); + if (!BN_is_negative(bn)) return (n > (uint64_t)std::numeric_limits::max() ? std::numeric_limits::max() : (int32_t)n); else return (n > (uint64_t)std::numeric_limits::max() ? std::numeric_limits::min() : -(int32_t)n); @@ -188,16 +203,16 @@ public: pch[1] = (nSize >> 16) & 0xff; pch[2] = (nSize >> 8) & 0xff; pch[3] = (nSize) & 0xff; - BN_mpi2bn(pch, p - pch, this); + BN_mpi2bn(pch, (int)(p - pch), bn); } uint64_t getuint64() { - size_t nSize = BN_bn2mpi(this, NULL); + size_t nSize = BN_bn2mpi(bn, NULL); if (nSize < 4) return 0; std::vector vch(nSize); - BN_bn2mpi(this, &vch[0]); + BN_bn2mpi(bn, &vch[0]); if (vch.size() > 4) vch[4] &= 0x7f; uint64_t n = 0; @@ -206,12 +221,15 @@ public: return n; } + //supress msvc C4127: conditional expression is constant + inline bool check(bool value) {return value;} + void setuint64(uint64_t n) { // Use BN_set_word if word size is sufficient for uint64_t - if (sizeof(n) <= sizeof(BN_ULONG)) + if (check(sizeof(n) <= sizeof(BN_ULONG))) { - if (!BN_set_word(this, (BN_ULONG)n)) + if (!BN_set_word(bn, (BN_ULONG)n)) throw bignum_error("CBigNum conversion from uint64_t : BN_set_word failed"); return; } @@ -238,7 +256,7 @@ public: pch[1] = (nSize >> 16) & 0xff; pch[2] = (nSize >> 8) & 0xff; pch[3] = (nSize) & 0xff; - BN_mpi2bn(pch, (int)(p - pch), this); + BN_mpi2bn(pch, (int)(p - pch), bn); } void setuint160(uint160 n) @@ -266,16 +284,16 @@ public: pch[1] = (nSize >> 16) & 0xff; pch[2] = (nSize >> 8) & 0xff; pch[3] = (nSize >> 0) & 0xff; - BN_mpi2bn(pch, (int) (p - pch), this); + BN_mpi2bn(pch, (int) (p - pch), bn); } uint160 getuint160() const { - unsigned int nSize = BN_bn2mpi(this, NULL); + unsigned int nSize = BN_bn2mpi(bn, NULL); if (nSize < 4) return 0; std::vector vch(nSize); - BN_bn2mpi(this, &vch[0]); + BN_bn2mpi(bn, &vch[0]); if (vch.size() > 4) vch[4] &= 0x7f; uint160 n = 0; @@ -309,16 +327,16 @@ public: pch[1] = (nSize >> 16) & 0xff; pch[2] = (nSize >> 8) & 0xff; pch[3] = (nSize >> 0) & 0xff; - BN_mpi2bn(pch, (int) (p - pch), this); + BN_mpi2bn(pch, (int) (p - pch), bn); } uint256 getuint256() const { - unsigned int nSize = BN_bn2mpi(this, NULL); + unsigned int nSize = BN_bn2mpi(bn, NULL); if (nSize < 4) return 0; std::vector vch(nSize); - BN_bn2mpi(this, &vch[0]); + BN_bn2mpi(bn, &vch[0]); if (vch.size() > 4) vch[4] &= 0x7f; uint256 n = 0; @@ -329,16 +347,16 @@ public: void setBytes(const std::vector& vchBytes) { - BN_bin2bn(&vchBytes[0], (int) vchBytes.size(), this); + BN_bin2bn(&vchBytes[0], (int) vchBytes.size(), bn); } std::vector getBytes() const { - int nBytes = BN_num_bytes(this); + int nBytes = BN_num_bytes(bn); std::vector vchBytes(nBytes); - int n = BN_bn2bin(this, &vchBytes[0]); + int n = BN_bn2bin(bn, &vchBytes[0]); if (n != nBytes) { throw bignum_error("CBigNum::getBytes : BN_bn2bin failed"); } @@ -358,16 +376,16 @@ public: vch2[3] = (nSize >> 0) & 0xff; // swap data to big endian reverse_copy(vch.begin(), vch.end(), vch2.begin() + 4); - BN_mpi2bn(&vch2[0], (int) vch2.size(), this); + BN_mpi2bn(&vch2[0], (int) vch2.size(), bn); } std::vector getvch() const { - unsigned int nSize = BN_bn2mpi(this, NULL); + unsigned int nSize = BN_bn2mpi(bn, NULL); if (nSize <= 4) return std::vector(); std::vector vch(nSize); - BN_bn2mpi(this, &vch[0]); + BN_bn2mpi(bn, &vch[0]); vch.erase(vch.begin(), vch.begin() + 4); reverse(vch.begin(), vch.end()); return vch; @@ -381,16 +399,16 @@ public: if (nSize >= 1) vch[4] = (nCompact >> 16) & 0xff; if (nSize >= 2) vch[5] = (nCompact >> 8) & 0xff; if (nSize >= 3) vch[6] = (nCompact >> 0) & 0xff; - BN_mpi2bn(&vch[0], (int) vch.size(), this); + BN_mpi2bn(&vch[0], (int) vch.size(), bn); return *this; } uint32_t GetCompact() const { - uint32_t nSize = BN_bn2mpi(this, NULL); + uint32_t nSize = BN_bn2mpi(bn, NULL); std::vector vch(nSize); nSize -= 4; - BN_bn2mpi(this, &vch[0]); + BN_bn2mpi(bn, &vch[0]); uint32_t nCompact = nSize << 24; if (nSize >= 1) nCompact |= (vch[4] << 16); if (nSize >= 2) nCompact |= (vch[5] << 8); @@ -435,20 +453,20 @@ public: CBigNum bn0 = 0; std::string str; CBigNum bn = *this; - BN_set_negative(&bn, false); + BN_set_negative(bn.bn, false); CBigNum dv; CBigNum rem; - if (BN_cmp(&bn, &bn0) == 0) + if (BN_cmp(bn.bn, bn0.bn) == 0) return "0"; - while (BN_cmp(&bn, &bn0) > 0) + while (BN_cmp(bn.bn, bn0.bn) > 0) { - if (!BN_div(&dv, &rem, &bn, &bnBase, pctx)) + if (!BN_div(dv.bn, rem.bn, bn.bn, bnBase.bn, pctx)) throw bignum_error("CBigNum::ToString() : BN_div failed"); bn = dv; uint32_t c = rem.getuint32(); str += "0123456789abcdef"[c]; } - if (BN_is_negative(this)) + if (BN_is_negative(bn.bn)) str += "-"; reverse(str.begin(), str.end()); return str; @@ -459,6 +477,10 @@ public: return ToString(16); } + BIGNUM* get() const { + return BN_dup(bn); + } + unsigned int GetSerializeSize(int nType=0, int nVersion=PROTOCOL_VERSION) const { return ::GetSerializeSize(getvch(), nType, nVersion); @@ -495,7 +517,7 @@ public: CBigNum pow(const CBigNum& e) const { CAutoBN_CTX pctx; CBigNum ret; - if (!BN_exp(&ret, this, &e, pctx)) + if (!BN_exp(ret.bn, bn, e.bn, pctx)) throw bignum_error("CBigNum::pow : BN_exp failed"); return ret; } @@ -508,7 +530,7 @@ public: CBigNum mul_mod(const CBigNum& b, const CBigNum& m) const { CAutoBN_CTX pctx; CBigNum ret; - if (!BN_mod_mul(&ret, this, &b, &m, pctx)) + if (!BN_mod_mul(ret.bn, bn, b.bn, m.bn, pctx)) throw bignum_error("CBigNum::mul_mod : BN_mod_mul failed"); return ret; @@ -526,10 +548,10 @@ public: // g^-x = (g^-1)^x CBigNum inv = this->inverse(m); CBigNum posE = e * -1; - if (!BN_mod_exp(&ret, &inv, &posE, &m, pctx)) + if (!BN_mod_exp(ret.bn, inv.bn, posE.bn, m.bn, pctx)) throw bignum_error("CBigNum::pow_mod: BN_mod_exp failed on negative exponent"); }else - if (!BN_mod_exp(&ret, this, &e, &m, pctx)) + if (!BN_mod_exp(ret.bn, bn, e.bn, m.bn, pctx)) throw bignum_error("CBigNum::pow_mod : BN_mod_exp failed"); return ret; @@ -544,7 +566,7 @@ public: CBigNum inverse(const CBigNum& m) const { CAutoBN_CTX pctx; CBigNum ret; - if (!BN_mod_inverse(&ret, this, &m, pctx)) + if (!BN_mod_inverse(ret.bn, bn, m.bn, pctx)) throw bignum_error("CBigNum::inverse*= :BN_mod_inverse"); return ret; } @@ -557,7 +579,7 @@ public: */ static CBigNum generatePrime(const unsigned int numBits, bool safe = false) { CBigNum ret; - if(!BN_generate_prime_ex(&ret, numBits, (safe == true), NULL, NULL, NULL)) + if(!BN_generate_prime_ex(ret.bn, numBits, (safe == true), NULL, NULL, NULL)) throw bignum_error("CBigNum::generatePrime*= :BN_generate_prime_ex"); return ret; } @@ -570,7 +592,7 @@ public: CBigNum gcd( const CBigNum& b) const{ CAutoBN_CTX pctx; CBigNum ret; - if (!BN_gcd(&ret, this, &b, pctx)) + if (!BN_gcd(ret.bn, bn, b.bn, pctx)) throw bignum_error("CBigNum::gcd*= :BN_gcd"); return ret; } @@ -583,7 +605,7 @@ public: */ bool isPrime(const int checks=BN_prime_checks) const { CAutoBN_CTX pctx; - int ret = BN_is_prime(this, checks, NULL, pctx, NULL); + int ret = BN_is_prime(bn, checks, NULL, pctx, NULL); if(ret < 0){ throw bignum_error("CBigNum::isPrime :BN_is_prime"); } @@ -591,18 +613,18 @@ public: } bool isOne() const { - return BN_is_one(this); + return BN_is_one(bn); } bool operator!() const { - return BN_is_zero(this); + return BN_is_zero(bn); } CBigNum& operator+=(const CBigNum& b) { - if (!BN_add(this, this, &b)) + if (!BN_add(bn, bn, b.bn)) throw bignum_error("CBigNum::operator+= : BN_add failed"); return *this; } @@ -616,7 +638,7 @@ public: CBigNum& operator*=(const CBigNum& b) { CAutoBN_CTX pctx; - if (!BN_mul(this, this, &b, pctx)) + if (!BN_mul(bn, bn, b.bn, pctx)) throw bignum_error("CBigNum::operator*= : BN_mul failed"); return *this; } @@ -635,7 +657,7 @@ public: CBigNum& operator<<=(unsigned int shift) { - if (!BN_lshift(this, this, shift)) + if (!BN_lshift(bn, bn, shift)) throw bignum_error("CBigNum:operator<<= : BN_lshift failed"); return *this; } @@ -646,13 +668,13 @@ public: // if built on ubuntu 9.04 or 9.10, probably depends on version of OpenSSL CBigNum a = 1; a <<= shift; - if (BN_cmp(&a, this) > 0) + if (BN_cmp(a.bn, bn) > 0) { *this = 0; return *this; } - if (!BN_rshift(this, this, shift)) + if (!BN_rshift(bn, bn, shift)) throw bignum_error("CBigNum:operator>>= : BN_rshift failed"); return *this; } @@ -661,7 +683,7 @@ public: CBigNum& operator++() { // prefix operator - if (!BN_add(this, this, BN_value_one())) + if (!BN_add(bn, bn, BN_value_one())) throw bignum_error("CBigNum::operator++ : BN_add failed"); return *this; } @@ -678,7 +700,7 @@ public: { // prefix operator CBigNum r; - if (!BN_sub(&r, this, BN_value_one())) + if (!BN_sub(r.bn, bn, BN_value_one())) throw bignum_error("CBigNum::operator-- : BN_sub failed"); *this = r; return *this; @@ -692,12 +714,25 @@ public: return ret; } - friend inline const CBigNum operator-(const CBigNum& a, const CBigNum& b); friend inline const CBigNum operator/(const CBigNum& a, const CBigNum& b); friend inline const CBigNum operator%(const CBigNum& a, const CBigNum& b); friend inline const CBigNum operator*(const CBigNum& a, const CBigNum& b); friend inline bool operator<(const CBigNum& a, const CBigNum& b); + friend inline const CBigNum operator+(const CBigNum& a, const CBigNum& b); + friend inline const CBigNum operator-(const CBigNum& a, const CBigNum& b); + friend inline const CBigNum operator*(const CBigNum& a); + + friend inline const CBigNum operator-(const CBigNum& a); + friend inline const CBigNum operator<<(const CBigNum& a, unsigned int shift); + + friend inline bool operator==(const CBigNum& a, const CBigNum& b); + friend inline bool operator!=(const CBigNum& a, const CBigNum& b); + friend inline bool operator<=(const CBigNum& a, const CBigNum& b); + friend inline bool operator>=(const CBigNum& a, const CBigNum& b); + friend inline bool operator<(const CBigNum& a, const CBigNum& b); + friend inline bool operator>(const CBigNum& a, const CBigNum& b); + friend inline std::ostream& operator<<(std::ostream &strm, const CBigNum &b); }; @@ -705,7 +740,7 @@ public: inline const CBigNum operator+(const CBigNum& a, const CBigNum& b) { CBigNum r; - if (!BN_add(&r, &a, &b)) + if (!BN_add(r.bn, a.bn, b.bn)) throw bignum_error("CBigNum::operator+ : BN_add failed"); return r; } @@ -713,7 +748,7 @@ inline const CBigNum operator+(const CBigNum& a, const CBigNum& b) inline const CBigNum operator-(const CBigNum& a, const CBigNum& b) { CBigNum r; - if (!BN_sub(&r, &a, &b)) + if (!BN_sub(r.bn, a.bn, b.bn)) throw bignum_error("CBigNum::operator- : BN_sub failed"); return r; } @@ -721,7 +756,7 @@ inline const CBigNum operator-(const CBigNum& a, const CBigNum& b) inline const CBigNum operator-(const CBigNum& a) { CBigNum r(a); - BN_set_negative(&r, !BN_is_negative(&r)); + BN_set_negative(r.bn, !BN_is_negative(r.bn)); return r; } @@ -729,7 +764,7 @@ inline const CBigNum operator*(const CBigNum& a, const CBigNum& b) { CAutoBN_CTX pctx; CBigNum r; - if (!BN_mul(&r, &a, &b, pctx)) + if (!BN_mul(r.bn, a.bn, b.bn, pctx)) throw bignum_error("CBigNum::operator* : BN_mul failed"); return r; } @@ -738,7 +773,7 @@ inline const CBigNum operator/(const CBigNum& a, const CBigNum& b) { CAutoBN_CTX pctx; CBigNum r; - if (!BN_div(&r, NULL, &a, &b, pctx)) + if (!BN_div(r.bn, NULL, a.bn, b.bn, pctx)) throw bignum_error("CBigNum::operator/ : BN_div failed"); return r; } @@ -747,7 +782,7 @@ inline const CBigNum operator%(const CBigNum& a, const CBigNum& b) { CAutoBN_CTX pctx; CBigNum r; - if (!BN_nnmod(&r, &a, &b, pctx)) + if (!BN_nnmod(r.bn, a.bn, b.bn, pctx)) throw bignum_error("CBigNum::operator% : BN_div failed"); return r; } @@ -755,7 +790,7 @@ inline const CBigNum operator%(const CBigNum& a, const CBigNum& b) inline const CBigNum operator<<(const CBigNum& a, unsigned int shift) { CBigNum r; - if (!BN_lshift(&r, &a, shift)) + if (!BN_lshift(r.bn, a.bn, shift)) throw bignum_error("CBigNum:operator<< : BN_lshift failed"); return r; } @@ -767,12 +802,12 @@ inline const CBigNum operator>>(const CBigNum& a, unsigned int shift) return r; } -inline bool operator==(const CBigNum& a, const CBigNum& b) { return (BN_cmp(&a, &b) == 0); } -inline bool operator!=(const CBigNum& a, const CBigNum& b) { return (BN_cmp(&a, &b) != 0); } -inline bool operator<=(const CBigNum& a, const CBigNum& b) { return (BN_cmp(&a, &b) <= 0); } -inline bool operator>=(const CBigNum& a, const CBigNum& b) { return (BN_cmp(&a, &b) >= 0); } -inline bool operator<(const CBigNum& a, const CBigNum& b) { return (BN_cmp(&a, &b) < 0); } -inline bool operator>(const CBigNum& a, const CBigNum& b) { return (BN_cmp(&a, &b) > 0); } +inline bool operator==(const CBigNum& a, const CBigNum& b) { return (BN_cmp(a.bn, b.bn) == 0); } +inline bool operator!=(const CBigNum& a, const CBigNum& b) { return (BN_cmp(a.bn, b.bn) != 0); } +inline bool operator<=(const CBigNum& a, const CBigNum& b) { return (BN_cmp(a.bn, b.bn) <= 0); } +inline bool operator>=(const CBigNum& a, const CBigNum& b) { return (BN_cmp(a.bn, b.bn) >= 0); } +inline bool operator<(const CBigNum& a, const CBigNum& b) { return (BN_cmp(a.bn, b.bn) < 0); } +inline bool operator>(const CBigNum& a, const CBigNum& b) { return (BN_cmp(a.bn, b.bn) > 0); } inline std::ostream& operator<<(std::ostream &strm, const CBigNum &b) { return strm << b.ToString(10); }