def setParamsUser():
try:
secp = session.get('secp')
if secp == 'secp256k1':
params = blind_demo.choose_parameters_secp256k1()
elif secp == 'secp192k1':
params = blind_demo.choose_parameters_secp192k1()
elif secp == 'secp160k1':
params = blind_demo.choose_parameters_secp160k1()
t1, t2, t3, t4, t5 = blind_demo.get_random_ZR(params.group),blind_demo.get_random_ZR(params.group),blind_demo.get_random_ZR(params.group),blind_demo.get_random_ZR(params.group),blind_demo.get_random_ZR(params.group)
blind_demo.putBytesToSession('t1_bytes',t1, params.group)
blind_demo.putBytesToSession('t2_bytes',t2, params.group)
blind_demo.putBytesToSession('t3_bytes',t3, params.group)
blind_demo.putBytesToSession('t4_bytes',t4, params.group)
blind_demo.putBytesToSession('t5_bytes',t5, params.group)
rjson = str(t1) + '#' + str(t2) + '#' + str(t3) + '#' + str(t4) + '#' + str(t5)
return rjson
except Exception as e:
print(e)
return "0"
def setParamsIssuer():
try:
secp = session.get('secp')
if secp == 'secp256k1':
params = blind_demo.choose_parameters_secp256k1()
elif secp == 'secp192k1':
params = blind_demo.choose_parameters_secp192k1()
elif secp == 'secp160k1':
params = blind_demo.choose_parameters_secp160k1()
upsilon, mu, s1, s2, d = blind_demo.get_random_ZR(params.group),blind_demo.get_random_ZR(params.group),blind_demo.get_random_ZR(params.group),blind_demo.get_random_ZR(params.group),blind_demo.get_random_ZR(params.group)
blind_demo.putBytesToSession('upsilon_bytes',upsilon, params.group)
blind_demo.putBytesToSession('mu_bytes',mu, params.group)
blind_demo.putBytesToSession('s1_bytes',s1, params.group)
blind_demo.putBytesToSession('s2_bytes',s2, params.group)
blind_demo.putBytesToSession('d_bytes',d, params.group)
rjson = str(upsilon) + '#' + str(mu) + '#' + str(s1) + '#' + str(s2) + '#' + str(d)
return rjson
except Exception as e:
print(e)
return "0"
def userExecuteOne():
try:
user = getUserObj()
zu = user.protocol_one()
blind_demo.putBytesToSession('zu_bytes',zu, user.parameters.group)
orig_z = blind_demo.getObjFromSession('z_bytes',user.parameters.group)
rjson = str(user.UserKeypair.gamma) + '#' + str(user.UserKeypair.xi)+ '#' + str(orig_z) + '#' + str(zu)
return rjson
except Exception as e1:
print(e1)
return "0"
def issuerExecuteSix():
try:
issuer = getIssuerObj()
orig_xi = blind_demo.getObjFromSession('xi_bytes',issuer.parameters.group)
contractAddress = session.get('cas')
xiupsilon = issuer.protocol_six(orig_xi)
blind_demo.putBytesToSession('xiupsilon_bytes',xiupsilon, issuer.parameters.group)
rjson = str(orig_xi) + "," + str(xiupsilon) + "," + str(contractAddress)
return rjson
except Exception as e:
print(e)
return "0"
def issuerExecuteFour():
try:
issuer = getIssuerObj()
e = blind_demo.getObjFromSession('e_bytes',issuer.parameters.group)
r,c,_,_,_ = issuer.protocol_four(e)
blind_demo.putBytesToSession('r_bytes',r, issuer.parameters.group)
blind_demo.putBytesToSession('c_bytes',c, issuer.parameters.group)
rjson = str(r) + ',' + str(c)
return rjson
except Exception as e:
print(e)
return "0"
def userExecuteFive():
try:
user = getUserObj()
r = blind_demo.getObjFromSession('r_bytes',user.parameters.group)
c = blind_demo.getObjFromSession('c_bytes',user.parameters.group)
s1 = blind_demo.getObjFromSession('s1_bytes',user.parameters.group)
s2 = blind_demo.getObjFromSession('s2_bytes',user.parameters.group)
d = blind_demo.getObjFromSession('d_bytes',user.parameters.group)
rho, omega, sigma1, sigma2, delta = user.protocol_five(r, c, s1,s2, d)
blind_demo.putBytesToSession('rho_bytes',rho, user.parameters.group)
blind_demo.putBytesToSession('omega_bytes',omega, user.parameters.group)
blind_demo.putBytesToSession('sigma1_bytes',sigma1, user.parameters.group)
blind_demo.putBytesToSession('sigma2_bytes',sigma2, user.parameters.group)
blind_demo.putBytesToSession('delta_bytes',delta, user.parameters.group)
rjson = str(rho) + ',' + str(omega) + ',' + str(sigma1) + ',' + str(sigma2) + ',' + str(delta)
return rjson
except Exception as e1:
print(e1)
return "0"
def userExecuteThree():
try:
user = getUserObj()
orig_z1 = blind_demo.getObjFromSession('z1_bytes',user.parameters.group)
orig_a = blind_demo.getObjFromSession('a_bytes',user.parameters.group)
orig_b1 = blind_demo.getObjFromSession('b1_bytes',user.parameters.group)
orig_b2 = blind_demo.getObjFromSession('b2_bytes',user.parameters.group)
m = str(request.form['m'])
m = bytes(m,'utf-8')
session['m'] = m
user.protocol_three(orig_z1, orig_a, orig_b1, orig_b2, m)
blind_demo.putBytesToSession('zeta1_bytes',user.zeta1, user.parameters.group)
blind_demo.putBytesToSession('zeta2_bytes',user.zeta2, user.parameters.group)
blind_demo.putBytesToSession('alpha_bytes',user.alpha, user.parameters.group)
blind_demo.putBytesToSession('beta1_bytes',user.beta1, user.parameters.group)
blind_demo.putBytesToSession('beta2_bytes',user.beta2, user.parameters.group)
blind_demo.putBytesToSession('epsilon_bytes',user.epsilon, user.parameters.group)
blind_demo.putBytesToSession('e_bytes',user.e, user.parameters.group)
rjson = str(user.zeta1) + ',' + str(user.zeta2) + ',' + str(user.alpha)+ ',' + str(user.beta1)+ ',' + str(user.beta2)+ ',' + str(user.epsilon)+ ',' + str(user.e)
return rjson
except Exception as e1:
print(e1)
return "0"
def issuerExecuteTwo():
try:
issuer = getIssuerObj()
orig_zu = blind_demo.getObjFromSession('zu_bytes',issuer.parameters.group)
tracerparams = blind_demo.tracer_choose_keypair(issuer.parameters.group,issuer.g)
xt = tracerparams.yt
yt = tracerparams.yt
blind_demo.putBytesToSession('xt_bytes', xt, issuer.parameters.group)
blind_demo.putBytesToSession('yt_bytes', yt, issuer.parameters.group)
issuer.tkey = yt
issuer.protocol_two(orig_zu)
blind_demo.putBytesToSession('z1_bytes', issuer.z1, issuer.parameters.group)
blind_demo.putBytesToSession('z2_bytes', issuer.z2, issuer.parameters.group)
blind_demo.putBytesToSession('a_bytes', issuer.a, issuer.parameters.group)
blind_demo.putBytesToSession('b1_bytes', issuer.b1, issuer.parameters.group)
blind_demo.putBytesToSession('b2_bytes', issuer.b2, issuer.parameters.group)
rjson = str(issuer.z1) + '#' + str(issuer.z2) + '#' + str(issuer.a) + '#' + str(issuer.b1)+ '#' + str(issuer.b2)
return rjson
except Exception as e:
print(e)
return "0"