Beispiel #1
0
 def prover_state3(self, input):
     print("PROVER 3: ")
     (r, h, c) = Sigma.get(self, ['r', 'h', 'c'])
     print("input c =>", c)
     z = r * (h ** -c)
     Sigma.setState(self, 5)
     # need store and get functions for db        
     return {'z':z }
Beispiel #2
0
 def verifier_state4(self, input):
     (g, H, a, c, z) = Sigma.get(self, ['g','H','a','c','z'])
     if a == (pair(g,z) * (H ** c)):
         print("SUCCESS!!!!!!!"); result = 'OK'
     else:
         print("Failed!!!"); result = 'FAIL'
     Sigma.setState(self, 6)
     Sigma.setErrorCode(self, result)
     return result
Beispiel #3
0
 def prover_state3(self, input):
     print("PROVER 3: ")
     (r1, r2, v, sigma, c) = Sigma.get(self, ['r1','r2','v','sigma', 'c'])
     print("input c =>", c)
     z1 = r1 - sigma * c # need a way to get sigma index as part of init index (1..N)
     z2 = r2 - v * c 
     print("send z1 =>", z1)
     print("send z2 =>", z2)
     Sigma.setState(self, 5)
     return {'z1':z1, 'z2':z2 }
Beispiel #4
0
 def verifier_state4(self, input):
     print("VERIFIER 4: ")
     (a1, a2, c, W, z, pk) = Sigma.get(self, ['a1','a2','c','W','z','pk'])
     g, V, H = pk['g'], pk['V'], pk['H']
     if a1 == pair(g,z) * (H ** c) and a2 == pair(V,z) * (W ** c):
         print("SUCCESS!!!!!!!"); result = 'OK'
     else:
         print("Failed!!!"); result = 'FAIL'
     Sigma.setState(self, 6)
     Sigma.setErrorCode(self, result)
     return result
Beispiel #5
0
 def verifier_state4(self, input):
     print("VERIFIER 4: ")
     (a, c, z1, z2, pk) = Sigma.get(self, ['a','c','z1','z2','pk'])
     g, y, V = pk['g'], pk['y'], pk['V']
     print("get a =>", a)
     if a == (pair(V,y) ** c) * (pair(V,g) ** -z1) * (pair(g,g) ** z2):
         print("SUCCESS!!!!!!!"); result = 'OK'
     else:
         print("Failed!!!"); result = 'FAIL'
     Sigma.setState(self, 6)
     Sigma.setErrorCode(self, result)
     return result
Beispiel #6
0
    def prover_state1(self):
        print("PROVER 1: ")
        (g, V) = Sigma.get(self, ['g', 'V'])
        r = self.group.random(G2)
        a1 = pair(g, r)
        a2 = pair(V, r)
        print("send r =>", r)
        print("send a1 =>", a1)
        print("send a2 =>", a2)
        pk = Sigma.get(self, ['g','V','H'], dict)

        Sigma.store(self, ('r',r) )
        Sigma.setState(self, 3)
        return { 'a1':a1, 'a2':a2, 'pk':pk }
Beispiel #7
0
    def prover_state1(self):
        print("PROVER 1: ")
        (g, V) = Sigma.get(self, ['g', 'V'])
        r1, r2 = self.group.random(ZR, 2)

        a = (pair(V, g) ** -r1) * (pair(g, g) ** r2)
        print("send g =>", g)
        print("send V =>", V)
        print("send r1 =>", r1)
        print("send r2 =>", r2)
        print("send a =>", a)

        pk = Sigma.get(self, ['g','V','y'], dict)
        Sigma.store(self, ('r1',r1), ('r2',r2) )
        Sigma.setState(self, 3)
        return { 'a':a, 'pk':pk }
Beispiel #8
0
 def verifier_state2(self, input):
     c = self.group.random(ZR)
     Sigma.setState(self, 4)
     return {'c':c }
Beispiel #9
0
 def prover_state5(self, input):
     Sigma.setState(self, None)
     Sigma.setErrorCode(self, input)
     return None
Beispiel #10
0
 def prover_state3(self, input):
     (r, h, c) = Sigma.get(self, ['r','h','c'])
     z = r * (h ** -c)
     Sigma.setState(self, 5)
     return {'z':z }
Beispiel #11
0
 def verifier_state6(self, input):
     print("VERIFIER 6: done.")
     Sigma.setState(self, None)
     return None
Beispiel #12
0
 def prover_state5(self, input):
     print("PROVER 5: result =>", input)
     Sigma.setState(self, None)
     Sigma.setErrorCode(self, input)
     return None
Beispiel #13
0
 def verifier_state2(self, input):
     print("VERIFIER 2: ")
     c = self.group.random(ZR)
     print("send c =>", c)
     Sigma.setState(self, 4)
     return {'c': c}
Beispiel #14
0
 def prover_state3(self, input):
     (r, h, c) = Sigma.get(self, ['r', 'h', 'c'])
     z = r * (h**-c)
     Sigma.setState(self, 5)
     return {'z': z}
Beispiel #15
0
 def verifier_state6(self, input):
     Sigma.setState(self, None)
     return None
Beispiel #16
0
 def __init__(self, groupObj=None, common_input=None):
     Sigma.__init__(self, groupObj, common_input)
Beispiel #17
0
 def verifier_state6(self, input):
     print("VERIFIER 6: done.")
     Sigma.setState(self, None)
     return None
Beispiel #18
0
 def __init__(self, groupObj, common_input=None):
     Sigma.__init__(self, groupObj, common_input)
Beispiel #19
0
 def __init__(self, groupObj, common_input=None):
     Sigma.__init__(self, groupObj, common_input)
     if common_input == None: 
         self.gen_common()
Beispiel #20
0
 def prover_state1(self):
     (g, h, H) = Sigma.get(self, ['g', 'h', 'H'])
     r = self.group.random(G2)
     a = pair(g, r)
     Sigma.setState(self, 3)
     return { 'r':r, 'a':a, 'g':g, 'h':h, 'H':H }        
Beispiel #21
0
 def prover_state5(self, input):
     print("PROVER 5: result =>", input)
     Sigma.setState(self, None)
     Sigma.setErrorCode(self, input)
     return None
Beispiel #22
0
 def prover_state5(self, input):
     Sigma.setState(self, None)
     Sigma.setErrorCode(self, input)
     return None
Beispiel #23
0
 def verifier_state2(self, input):
     print("VERIFIER 2: ")
     c = self.group.random(ZR)
     print("send c =>", c)
     Sigma.setState(self, 4)
     return {'c':c }