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authormaximius <none@none>2009-10-17 15:35:07 -0700
committermaximius <none@none>2009-10-17 15:35:07 -0700
commit26b5e033ffde3d161382fc9addbfa99738379641 (patch)
treea344f369ca32945f787a02dee35c3dbe342bed7e /src/shared/Auth/BigNumber.cpp
parentf21f47005dcb6b76e1abc9f35fbcd03eed191bff (diff)
*Massive cleanup (\n\n -> \n, *\n -> \n, cleanup for(...) to for (...), and some other cleanups by hand)
*Fix a possible crash in Spell::DoAllEffectOnTarget --HG-- branch : trunk
Diffstat (limited to 'src/shared/Auth/BigNumber.cpp')
-rw-r--r--src/shared/Auth/BigNumber.cpp39
1 files changed, 0 insertions, 39 deletions
diff --git a/src/shared/Auth/BigNumber.cpp b/src/shared/Auth/BigNumber.cpp
index 303687c266c..837b75804df 100644
--- a/src/shared/Auth/BigNumber.cpp
+++ b/src/shared/Auth/BigNumber.cpp
@@ -17,182 +17,143 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-
#include "Auth/BigNumber.h"
#include <openssl/bn.h>
#include <algorithm>
-
BigNumber::BigNumber()
{
_bn = BN_new();
_array = NULL;
}
-
BigNumber::BigNumber(const BigNumber &bn)
{
_bn = BN_dup(bn._bn);
_array = NULL;
}
-
BigNumber::BigNumber(uint32 val)
{
_bn = BN_new();
BN_set_word(_bn, val);
_array = NULL;
}
-
BigNumber::~BigNumber()
{
BN_free(_bn);
if(_array) delete[] _array;
}
-
void BigNumber::SetDword(uint32 val)
{
BN_set_word(_bn, val);
}
-
void BigNumber::SetQword(uint64 val)
{
BN_add_word(_bn, (uint32)(val >> 32));
BN_lshift(_bn, _bn, 32);
BN_add_word(_bn, (uint32)(val & 0xFFFFFFFF));
}
-
void BigNumber::SetBinary(const uint8 *bytes, int len)
{
uint8 t[1000];
for (int i = 0; i < len; i++) t[i] = bytes[len - 1 - i];
BN_bin2bn(t, len, _bn);
}
-
void BigNumber::SetHexStr(const char *str)
{
BN_hex2bn(&_bn, str);
}
-
void BigNumber::SetRand(int numbits)
{
BN_rand(_bn, numbits, 0, 1);
}
-
BigNumber BigNumber::operator=(const BigNumber &bn)
{
BN_copy(_bn, bn._bn);
return *this;
}
-
BigNumber BigNumber::operator+=(const BigNumber &bn)
{
BN_add(_bn, _bn, bn._bn);
return *this;
}
-
BigNumber BigNumber::operator-=(const BigNumber &bn)
{
BN_sub(_bn, _bn, bn._bn);
return *this;
}
-
BigNumber BigNumber::operator*=(const BigNumber &bn)
{
BN_CTX *bnctx;
-
bnctx = BN_CTX_new();
BN_mul(_bn, _bn, bn._bn, bnctx);
BN_CTX_free(bnctx);
-
return *this;
}
-
BigNumber BigNumber::operator/=(const BigNumber &bn)
{
BN_CTX *bnctx;
-
bnctx = BN_CTX_new();
BN_div(_bn, NULL, _bn, bn._bn, bnctx);
BN_CTX_free(bnctx);
-
return *this;
}
-
BigNumber BigNumber::operator%=(const BigNumber &bn)
{
BN_CTX *bnctx;
-
bnctx = BN_CTX_new();
BN_mod(_bn, _bn, bn._bn, bnctx);
BN_CTX_free(bnctx);
-
return *this;
}
-
BigNumber BigNumber::Exp(const BigNumber &bn)
{
BigNumber ret;
BN_CTX *bnctx;
-
bnctx = BN_CTX_new();
BN_exp(ret._bn, _bn, bn._bn, bnctx);
BN_CTX_free(bnctx);
-
return ret;
}
-
BigNumber BigNumber::ModExp(const BigNumber &bn1, const BigNumber &bn2)
{
BigNumber ret;
BN_CTX *bnctx;
-
bnctx = BN_CTX_new();
BN_mod_exp(ret._bn, _bn, bn1._bn, bn2._bn, bnctx);
BN_CTX_free(bnctx);
-
return ret;
}
-
int BigNumber::GetNumBytes(void)
{
return BN_num_bytes(_bn);
}
-
uint32 BigNumber::AsDword()
{
return (uint32)BN_get_word(_bn);
}
-
bool BigNumber::isZero() const
{
return BN_is_zero(_bn)!=0;
}
-
uint8 *BigNumber::AsByteArray(int minSize)
{
int length = (minSize >= GetNumBytes()) ? minSize : GetNumBytes();
-
if (_array)
{
delete[] _array;
_array = NULL;
}
_array = new uint8[length];
-
// If we need more bytes than length of BigNumber set the rest to 0
if (length > GetNumBytes())
memset((void*)_array, 0, length);
-
BN_bn2bin(_bn, (unsigned char *)_array);
-
std::reverse(_array, _array + length);
-
return _array;
}
-
const char *BigNumber::AsHexStr()
{
return BN_bn2hex(_bn);
}
-
const char *BigNumber::AsDecStr()
{
return BN_bn2dec(_bn);