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81 lines
1.7 KiB
81 lines
1.7 KiB
8 years ago
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from ctypes import *
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from ctypes.wintypes import LPWSTR, LPCSTR, LPVOID
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g_lib = None
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def BN256_init():
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global g_lib
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g_lib = cdll.LoadLibrary("../../bin/bn256_if.dll")
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ret = g_lib.BN256_init()
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if ret:
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print "ERR BN256_init"
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class Fr(Structure):
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_fields_ = [("v", c_ulonglong * 4)]
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def setInt(self, v):
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g_lib.BN256_Fr_setInt(self.v, v)
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def setStr(self, s):
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ret = g_lib.BN256_Fr_setStr(self.v, c_char_p(s))
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if ret:
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print("ERR Fr:setStr")
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def __str__(self):
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svLen = 1024
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sv = create_string_buffer('\0' * svLen)
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ret = g_lib.BN256_Fr_getStr(sv, svLen, self.v)
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if ret:
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print("ERR Fr:getStr")
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return sv.value
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def isZero(self, rhs):
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return g_lib.BN256_Fr_isZero(self.v) != 0
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def isOne(self, rhs):
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return g_lib.BN256_Fr_isOne(self.v) != 0
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def __eq__(self, rhs):
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return g_lib.BN256_Fr_isSame(self.v, rhs.v) != 0
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def __ne__(self, rhs):
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return not(P == Q)
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def __add__(self, rhs):
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ret = Fr()
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g_lib.BN256_Fr_add(ret.v, self.v, rhs.v)
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return ret
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def __sub__(self, rhs):
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ret = Fr()
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g_lib.BN256_Fr_sub(ret.v, self.v, rhs.v)
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return ret
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def __mul__(self, rhs):
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ret = Fr()
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g_lib.BN256_Fr_mul(ret.v, self.v, rhs.v)
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return ret
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def __div__(self, rhs):
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ret = Fr()
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g_lib.BN256_Fr_div(ret.v, self.v, rhs.v)
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return ret
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def __neg__(self):
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ret = Fr()
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g_lib.BN256_Fr_neg(ret.v, self.v)
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return ret
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def Fr_add(z, x, y):
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g_lib.BN256_Fr_add(z.v, x.v, y.v)
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def Fr_sub(z, x, y):
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g_lib.BN256_Fr_sub(z.v, x.v, y.v)
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def Fr_mul(z, x, y):
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g_lib.BN256_Fr_mul(z.v, x.v, y.v)
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def Fr_div(z, x, y):
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g_lib.BN256_Fr_div(z.v, x.v, y.v)
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BN256_init()
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P = Fr()
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Q = Fr()
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print P == Q
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print P != Q
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P.setInt(5)
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Q.setStr("34982034824")
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print Q
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R = Fr()
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Fr_add(R, P, Q)
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print R
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