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https://github.com/GOSTSec/gostcoin
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CBigNum for openssl 1.1
This commit is contained in:
orignal
parent
42807c480e
commit
20d9569fd2
@ -50,7 +50,7 @@ inline std::string EncodeBase58(const unsigned char* pbegin, const unsigned char
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CBigNum rem;
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while (bn > bn0)
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{
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if (!BN_div(&dv, &rem, &bn, &bn58, pctx))
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if (!BN_div(dv.GetBN (), rem.GetBN (), bn.GetBN (), bn58.GetBN (), pctx))
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throw bignum_error("EncodeBase58 : BN_div failed");
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bn = dv;
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unsigned int c = rem.getulong();
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@ -97,7 +97,7 @@ inline bool DecodeBase58(const char* psz, std::vector<unsigned char>& vchRet)
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break;
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}
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bnChar.setulong(p1 - pszBase58);
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if (!BN_mul(&bn, &bn, &bn58, pctx))
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if (!BN_mul(bn.GetBN (), bn.GetBN (), bn58.GetBN (), pctx))
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throw bignum_error("DecodeBase58 : BN_mul failed");
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bn += bnChar;
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}
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153
src/bignum.h
153
src/bignum.h
@ -48,75 +48,83 @@ public:
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/** C++ wrapper for BIGNUM (OpenSSL bignum) */
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class CBigNum : public BIGNUM
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class CBigNum
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{
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private:
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BIGNUM * bn;
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public:
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BIGNUM * GetBN () { return bn; };
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const BIGNUM * GetBN () const { return bn; };
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CBigNum()
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{
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BN_init(this);
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bn = BN_new ();
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}
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CBigNum(const CBigNum& b)
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{
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BN_init(this);
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if (!BN_copy(this, &b))
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bn = BN_new ();
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if (!BN_copy(bn, b.bn))
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{
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BN_clear_free(this);
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BN_free(bn); bn = nullptr;
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throw bignum_error("CBigNum::CBigNum(const CBigNum&) : BN_copy failed");
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}
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}
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CBigNum& operator=(const CBigNum& b)
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{
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if (!BN_copy(this, &b))
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if (!BN_copy(bn, b.bn))
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throw bignum_error("CBigNum::operator= : BN_copy failed");
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return (*this);
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}
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~CBigNum()
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{
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BN_clear_free(this);
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BN_free(bn);
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}
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//CBigNum(char n) is not portable. Use 'signed char' or 'unsigned char'.
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CBigNum(signed char n) { BN_init(this); if (n >= 0) setulong(n); else setint64(n); }
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CBigNum(short n) { BN_init(this); if (n >= 0) setulong(n); else setint64(n); }
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CBigNum(int n) { BN_init(this); if (n >= 0) setulong(n); else setint64(n); }
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CBigNum(long n) { BN_init(this); if (n >= 0) setulong(n); else setint64(n); }
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CBigNum(int64 n) { BN_init(this); setint64(n); }
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CBigNum(unsigned char n) { BN_init(this); setulong(n); }
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CBigNum(unsigned short n) { BN_init(this); setulong(n); }
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CBigNum(unsigned int n) { BN_init(this); setulong(n); }
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CBigNum(unsigned long n) { BN_init(this); setulong(n); }
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CBigNum(uint64 n) { BN_init(this); setuint64(n); }
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explicit CBigNum(uint256 n) { BN_init(this); setuint256(n); }
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CBigNum(signed char n) { bn = BN_new (); if (n >= 0) setulong(n); else setint64(n); }
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CBigNum(short n) { bn = BN_new (); if (n >= 0) setulong(n); else setint64(n); }
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CBigNum(int n) { bn = BN_new (); if (n >= 0) setulong(n); else setint64(n); }
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CBigNum(long n) { bn = BN_new (); if (n >= 0) setulong(n); else setint64(n); }
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CBigNum(int64 n) { bn = BN_new (); setint64(n); }
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CBigNum(unsigned char n) { bn = BN_new (); setulong(n); }
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CBigNum(unsigned short n) { bn = BN_new (); setulong(n); }
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CBigNum(unsigned int n) { bn = BN_new (); setulong(n); }
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CBigNum(unsigned long n) { bn = BN_new (); setulong(n); }
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CBigNum(uint64 n) { bn = BN_new (); setuint64(n); }
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explicit CBigNum(uint256 n) { bn = BN_new (); setuint256(n); }
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explicit CBigNum(const std::vector<unsigned char>& vch)
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{
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BN_init(this);
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bn = BN_new ();
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setvch(vch);
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}
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void setulong(unsigned long n)
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{
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if (!BN_set_word(this, n))
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if (!BN_set_word(bn, n))
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throw bignum_error("CBigNum conversion from unsigned long : BN_set_word failed");
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}
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unsigned long getulong() const
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{
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return BN_get_word(this);
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return BN_get_word(bn);
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}
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unsigned int getuint() const
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{
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return BN_get_word(this);
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return BN_get_word(bn);
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}
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int getint() const
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{
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unsigned long n = BN_get_word(this);
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if (!BN_is_negative(this))
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unsigned long n = BN_get_word(bn);
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if (!BN_is_negative(bn))
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return (n > (unsigned long)std::numeric_limits<int>::max() ? std::numeric_limits<int>::max() : n);
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else
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return (n > (unsigned long)std::numeric_limits<int>::max() ? std::numeric_limits<int>::min() : -(int)n);
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@ -164,7 +172,7 @@ public:
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pch[1] = (nSize >> 16) & 0xff;
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pch[2] = (nSize >> 8) & 0xff;
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pch[3] = (nSize) & 0xff;
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BN_mpi2bn(pch, p - pch, this);
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BN_mpi2bn(pch, p - pch, bn);
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}
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void setuint64(uint64 n)
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@ -191,7 +199,7 @@ public:
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pch[1] = (nSize >> 16) & 0xff;
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pch[2] = (nSize >> 8) & 0xff;
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pch[3] = (nSize) & 0xff;
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BN_mpi2bn(pch, p - pch, this);
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BN_mpi2bn(pch, p - pch, bn);
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}
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void setuint256(uint256 n)
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@ -219,16 +227,16 @@ public:
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pch[1] = (nSize >> 16) & 0xff;
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pch[2] = (nSize >> 8) & 0xff;
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pch[3] = (nSize >> 0) & 0xff;
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BN_mpi2bn(pch, p - pch, this);
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BN_mpi2bn(pch, p - pch, bn);
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}
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uint256 getuint256() const
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{
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unsigned int nSize = BN_bn2mpi(this, NULL);
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unsigned int nSize = BN_bn2mpi(bn, NULL);
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if (nSize < 4)
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return 0;
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std::vector<unsigned char> vch(nSize);
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BN_bn2mpi(this, &vch[0]);
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BN_bn2mpi(bn, &vch[0]);
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if (vch.size() > 4)
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vch[4] &= 0x7f;
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uint256 n = 0;
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@ -249,16 +257,16 @@ public:
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vch2[3] = (nSize >> 0) & 0xff;
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// swap data to big endian
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reverse_copy(vch.begin(), vch.end(), vch2.begin() + 4);
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BN_mpi2bn(&vch2[0], vch2.size(), this);
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BN_mpi2bn(&vch2[0], vch2.size(), bn);
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}
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std::vector<unsigned char> getvch() const
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{
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unsigned int nSize = BN_bn2mpi(this, NULL);
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unsigned int nSize = BN_bn2mpi(bn, NULL);
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if (nSize <= 4)
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return std::vector<unsigned char>();
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std::vector<unsigned char> vch(nSize);
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BN_bn2mpi(this, &vch[0]);
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BN_bn2mpi(bn, &vch[0]);
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vch.erase(vch.begin(), vch.begin() + 4);
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reverse(vch.begin(), vch.end());
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return vch;
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@ -294,28 +302,28 @@ public:
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if (nSize <= 3)
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{
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nWord >>= 8*(3-nSize);
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BN_set_word(this, nWord);
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BN_set_word(bn, nWord);
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}
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else
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{
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BN_set_word(this, nWord);
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BN_lshift(this, this, 8*(nSize-3));
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BN_set_word(bn, nWord);
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BN_lshift(bn, bn, 8*(nSize-3));
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}
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BN_set_negative(this, fNegative);
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BN_set_negative(bn, fNegative);
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return *this;
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}
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unsigned int GetCompact() const
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{
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unsigned int nSize = BN_num_bytes(this);
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unsigned int nSize = BN_num_bytes(bn);
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unsigned int nCompact = 0;
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if (nSize <= 3)
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nCompact = BN_get_word(this) << 8*(3-nSize);
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nCompact = BN_get_word(bn) << 8*(3-nSize);
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else
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{
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CBigNum bn;
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BN_rshift(&bn, this, 8*(nSize-3));
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nCompact = BN_get_word(&bn);
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CBigNum bn1;
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BN_rshift(bn1.bn, bn, 8*(nSize-3));
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nCompact = BN_get_word(bn1.bn);
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}
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// The 0x00800000 bit denotes the sign.
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// Thus, if it is already set, divide the mantissa by 256 and increase the exponent.
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@ -325,7 +333,7 @@ public:
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nSize++;
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}
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nCompact |= nSize << 24;
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nCompact |= (BN_is_negative(this) ? 0x00800000 : 0);
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nCompact |= (BN_is_negative(bn) ? 0x00800000 : 0);
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return nCompact;
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}
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@ -365,21 +373,21 @@ public:
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CBigNum bnBase = nBase;
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CBigNum bn0 = 0;
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std::string str;
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CBigNum bn = *this;
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BN_set_negative(&bn, false);
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CBigNum bn_copy = *this;
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BN_set_negative(bn_copy.bn, false);
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CBigNum dv;
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CBigNum rem;
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if (BN_cmp(&bn, &bn0) == 0)
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if (BN_cmp(bn_copy.bn, bn0.bn) == 0)
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return "0";
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while (BN_cmp(&bn, &bn0) > 0)
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while (BN_cmp(bn_copy.bn, bn0.bn) > 0)
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{
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if (!BN_div(&dv, &rem, &bn, &bnBase, pctx))
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if (!BN_div(dv.bn, rem.bn, bn_copy.bn, bnBase.bn, pctx))
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throw bignum_error("CBigNum::ToString() : BN_div failed");
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bn = dv;
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bn_copy = dv;
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unsigned int c = rem.getulong();
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str += "0123456789abcdef"[c];
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}
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if (BN_is_negative(this))
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if (BN_is_negative(bn))
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str += "-";
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reverse(str.begin(), str.end());
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return str;
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@ -412,12 +420,12 @@ public:
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bool operator!() const
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{
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return BN_is_zero(this);
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return BN_is_zero(bn);
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}
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CBigNum& operator+=(const CBigNum& b)
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{
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if (!BN_add(this, this, &b))
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if (!BN_add(bn, bn, b.bn))
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throw bignum_error("CBigNum::operator+= : BN_add failed");
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return *this;
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}
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@ -431,7 +439,7 @@ public:
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CBigNum& operator*=(const CBigNum& b)
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{
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CAutoBN_CTX pctx;
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if (!BN_mul(this, this, &b, pctx))
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if (!BN_mul(bn, bn, b.bn, pctx))
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throw bignum_error("CBigNum::operator*= : BN_mul failed");
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return *this;
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}
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@ -450,7 +458,7 @@ public:
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CBigNum& operator<<=(unsigned int shift)
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{
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if (!BN_lshift(this, this, shift))
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if (!BN_lshift(bn, bn, shift))
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throw bignum_error("CBigNum:operator<<= : BN_lshift failed");
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return *this;
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}
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@ -461,13 +469,13 @@ public:
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// if built on ubuntu 9.04 or 9.10, probably depends on version of OpenSSL
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CBigNum a = 1;
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a <<= shift;
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if (BN_cmp(&a, this) > 0)
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if (BN_cmp(a.bn, bn) > 0)
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{
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*this = 0;
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return *this;
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}
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if (!BN_rshift(this, this, shift))
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if (!BN_rshift(bn, bn, shift))
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throw bignum_error("CBigNum:operator>>= : BN_rshift failed");
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return *this;
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}
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@ -476,7 +484,7 @@ public:
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CBigNum& operator++()
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{
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// prefix operator
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if (!BN_add(this, this, BN_value_one()))
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if (!BN_add(bn, bn, BN_value_one()))
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throw bignum_error("CBigNum::operator++ : BN_add failed");
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return *this;
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}
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@ -493,7 +501,7 @@ public:
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{
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// prefix operator
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CBigNum r;
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if (!BN_sub(&r, this, BN_value_one()))
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if (!BN_sub(r.bn, bn, BN_value_one()))
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throw bignum_error("CBigNum::operator-- : BN_sub failed");
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*this = r;
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return *this;
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@ -507,10 +515,13 @@ public:
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return ret;
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}
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friend inline const CBigNum operator+(const CBigNum& a, const CBigNum& b);
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friend inline const CBigNum operator-(const CBigNum& a, const CBigNum& b);
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friend inline const CBigNum operator-(const CBigNum& a);
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friend inline const CBigNum operator/(const CBigNum& a, const CBigNum& b);
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friend inline const CBigNum operator%(const CBigNum& a, const CBigNum& b);
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friend inline const CBigNum operator<<(const CBigNum& a, unsigned int shift);
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friend inline const CBigNum operator*(const CBigNum& a, const CBigNum& b);
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};
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@ -518,7 +529,7 @@ public:
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inline const CBigNum operator+(const CBigNum& a, const CBigNum& b)
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{
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CBigNum r;
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if (!BN_add(&r, &a, &b))
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if (!BN_add(r.bn, a.bn, b.bn))
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throw bignum_error("CBigNum::operator+ : BN_add failed");
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return r;
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}
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@ -526,7 +537,7 @@ inline const CBigNum operator+(const CBigNum& a, const CBigNum& b)
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inline const CBigNum operator-(const CBigNum& a, const CBigNum& b)
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{
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CBigNum r;
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if (!BN_sub(&r, &a, &b))
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if (!BN_sub(r.bn, a.bn, b.bn))
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throw bignum_error("CBigNum::operator- : BN_sub failed");
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return r;
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}
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@ -534,7 +545,7 @@ inline const CBigNum operator-(const CBigNum& a, const CBigNum& b)
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inline const CBigNum operator-(const CBigNum& a)
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{
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CBigNum r(a);
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BN_set_negative(&r, !BN_is_negative(&r));
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BN_set_negative(r.bn, !BN_is_negative(r.bn));
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return r;
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}
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@ -542,7 +553,7 @@ inline const CBigNum operator*(const CBigNum& a, const CBigNum& b)
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{
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CAutoBN_CTX pctx;
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CBigNum r;
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if (!BN_mul(&r, &a, &b, pctx))
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if (!BN_mul(r.bn, a.bn, b.bn, pctx))
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throw bignum_error("CBigNum::operator* : BN_mul failed");
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return r;
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}
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@ -551,7 +562,7 @@ inline const CBigNum operator/(const CBigNum& a, const CBigNum& b)
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{
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CAutoBN_CTX pctx;
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CBigNum r;
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if (!BN_div(&r, NULL, &a, &b, pctx))
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if (!BN_div(r.bn, NULL, a.bn, b.bn, pctx))
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throw bignum_error("CBigNum::operator/ : BN_div failed");
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return r;
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}
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@ -560,7 +571,7 @@ inline const CBigNum operator%(const CBigNum& a, const CBigNum& b)
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{
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CAutoBN_CTX pctx;
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CBigNum r;
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if (!BN_mod(&r, &a, &b, pctx))
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if (!BN_mod(r.bn, a.bn, b.bn, pctx))
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throw bignum_error("CBigNum::operator% : BN_div failed");
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return r;
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}
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@ -568,7 +579,7 @@ inline const CBigNum operator%(const CBigNum& a, const CBigNum& b)
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inline const CBigNum operator<<(const CBigNum& a, unsigned int shift)
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{
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CBigNum r;
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if (!BN_lshift(&r, &a, shift))
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if (!BN_lshift(r.bn, a.bn, shift))
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throw bignum_error("CBigNum:operator<< : BN_lshift failed");
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return r;
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}
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@ -580,11 +591,11 @@ inline const CBigNum operator>>(const CBigNum& a, unsigned int shift)
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return r;
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}
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inline bool operator==(const CBigNum& a, const CBigNum& b) { return (BN_cmp(&a, &b) == 0); }
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inline bool operator!=(const CBigNum& a, const CBigNum& b) { return (BN_cmp(&a, &b) != 0); }
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inline bool operator<=(const CBigNum& a, const CBigNum& b) { return (BN_cmp(&a, &b) <= 0); }
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inline bool operator>=(const CBigNum& a, const CBigNum& b) { return (BN_cmp(&a, &b) >= 0); }
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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.GetBN (), b.GetBN ()) == 0); }
|
||||
inline bool operator!=(const CBigNum& a, const CBigNum& b) { return (BN_cmp(a.GetBN (), b.GetBN ()) != 0); }
|
||||
inline bool operator<=(const CBigNum& a, const CBigNum& b) { return (BN_cmp(a.GetBN (), b.GetBN ()) <= 0); }
|
||||
inline bool operator>=(const CBigNum& a, const CBigNum& b) { return (BN_cmp(a.GetBN (), b.GetBN ()) >= 0); }
|
||||
inline bool operator<(const CBigNum& a, const CBigNum& b) { return (BN_cmp(a.GetBN (), b.GetBN ()) < 0); }
|
||||
inline bool operator>(const CBigNum& a, const CBigNum& b) { return (BN_cmp(a.GetBN (), b.GetBN ()) > 0); }
|
||||
|
||||
#endif
|
||||
|
||||
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Reference in New Issue
Block a user