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- load('share.sage')
- load('beaver.sage')
- from random import randint
- party0_val = 3
- party1_val = 22
- public_scalar = 2
- source = Source(p)
- # additive share distribution, and communication of private values
- party0_random = randint(0,p)
- alpha1 = AuthenticatedShare(party0_random, source, 0)
- alpha2 = AuthenticatedShare(party0_val - party0_random, source, 1)
- assert (alpha1.authenticated_open(alpha2) == party0_val)
- party1_random = randint(0,p)
- beta1 = AuthenticatedShare(party1_random, source, 1)
- beta2 = AuthenticatedShare(party1_val - party1_random, source, 1)
- assert (beta1.authenticated_open(beta2) == party1_val)
- # mul_scalar by public scalar
- mul_left_share = alpha1.mul_scalar(public_scalar)
- mul_right_share = alpha2.mul_scalar(public_scalar)
- assert (mul_left_share.authenticated_open(mul_right_share) == (public_scalar * party0_val))
- # sub_scalar by public scalar
- sub_left_share = alpha1.sub_scalar(public_scalar, 0)
- sub_right_share = alpha2.sub_scalar(public_scalar, 1)
- assert (sub_left_share.authenticated_open(sub_right_share) == (party0_val - public_scalar))
- # add_scalar by public scalar
- add_left_share = alpha1.add_scalar(public_scalar, 0)
- add_right_share = alpha2.add_scalar(public_scalar, 1)
- assert (add_left_share.authenticated_open(add_right_share) == (public_scalar + party0_val))
- # add authenticated shares
- add_party0_share = alpha1 + beta2
- add_party1_share = alpha2 + beta1
- lhs = add_party0_share.authenticated_open(add_party1_share)
- assert (lhs == (party0_val + party1_val))
- # sub authenticated shares
- sub_party0_share = alpha1 - beta2
- sub_party1_share = alpha2 - beta1
- lhs = sub_party0_share.authenticated_open(sub_party1_share)
- assert (lhs == (party0_val - party1_val))
- # mul authenticated shares
- mul_res = party0_val * party1_val
- s = Source(p)
- a1b1 = MultiplicationAuthenticatedShares(alpha1, beta1, s.triplet(0), 0)
- a2b2 = MultiplicationAuthenticatedShares(alpha2, beta2, s.triplet(1), 1)
- print('d1: {}'.format(a1b1.d))
- print('d2: {}'.format(a2b2.d))
- lhs_share = a1b1.mul(a2b2.d, a2b2.e)
- rhs_share = a2b2.mul(a1b1.d, a1b1.e)
- lhs = lhs_share.authenticated_open(rhs_share)
- assert (lhs == (party0_val * party1_val)), 'lhs: {}, rhs: {}'.format(lhs, party0_val * party1_val)
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