def __init__(self, groupObj):
IBEnc.__init__(self)
global group, H, util
group = groupObj
H = lambda x: group.hash(('0', x), ZR)
util = SecretShare(group, False)
global v
def testSecretShare(self):
# Testing Secret sharing python API
k = 3
n = 4
group = PairingGroup('SS512')
s = SecretShare(group, False)
sec = group.random(ZR)
shares = s.genShares(sec, k, n)
K = shares[0]
if debug: print('\nOriginal secret: %s' % K)
y = {group.init(ZR, long(1)):shares[1], group.init(ZR, long(2)):shares[2], group.init(ZR, long(3)):shares[3]}
secret = s.recoverSecret(y)
assert K == secret, "Could not recover the secret!"
if debug: print("Successfully recovered secret: ", secret)
def getUserGlobals():
global groupObjBuiltInFuncs, utilBuiltInFuncs, shareBuiltInFuncs
if (groupObjBuiltInFuncs == None):
groupObjBuiltInFuncs = PairingGroup(MNT160)
if (utilBuiltInFuncs == None):
utilBuiltInFuncs = SecretUtil(groupObjBuiltInFuncs, verbose=False)
if (shareBuiltInFuncs == None):
shareBuiltInFuncs = SecretShare(groupObjBuiltInFuncs, False)
def testSecretShare(self):
# Testing Secret sharing python API
k = 3
n = 4
group = PairingGroup('SS512')
s = SecretShare(group, False)
sec = group.random(ZR)
shares = s.genShares(sec, k, n)
K = shares[0]
if debug: print('\nOriginal secret: %s' % K)
y = {
group.init(ZR, long(1)): shares[1],
group.init(ZR, long(2)): shares[2],
group.init(ZR, long(3)): shares[3]
}
secret = s.recoverSecret(y)
assert K == secret, "Could not recover the secret!"
if debug: print("Successfully recovered secret: ", secret)