def test_concat(self):
tf.reset_default_graph()
prot = ABY3()
tfe.set_protocol(prot)
x1 = tfe.define_private_variable(tf.constant([[1, 2], [4, 5]]))
x2 = tfe.define_private_variable(tf.constant([[3], [6]]))
y1 = tfe.define_constant(np.array([[1, 2, 3]]))
y2 = tfe.define_constant(np.array([[4, 5, 6]]))
z1 = tfe.concat([x1, x2], axis=1)
z2 = tfe.concat([y1, y2], axis=0)
with tfe.Session() as sess:
# initialize variables
sess.run(tfe.global_variables_initializer())
# reveal result
result = sess.run(z1.reveal())
np.testing.assert_allclose(
result, np.array([[1, 2, 3], [4, 5, 6]]), rtol=0.0, atol=0.01
)
result = sess.run(z2)
np.testing.assert_allclose(
result, np.array([[1, 2, 3], [4, 5, 6]]), rtol=0.0, atol=0.01
)
def test_mul_private_public(self):
tf.reset_default_graph()
prot = ABY3()
tfe.set_protocol(prot)
# define inputs
x = tfe.define_private_variable(tf.ones(shape=(2, 2)) * 2)
y = tfe.define_constant(np.array([[0.6, 0.7], [0.8, 0.9]]))
w = tfe.define_constant(np.array([[2, 2], [2, 2]]))
# define computation
z1 = y * x # mul_public_private
z2 = z1 * w # mul_private_public
with tfe.Session() as sess:
# initialize variables
sess.run(tfe.global_variables_initializer())
# reveal result
result = sess.run(z2.reveal())
np.testing.assert_allclose(result,
np.array([[2.4, 2.8], [3.2, 3.6]]),
rtol=0.0,
atol=0.01)
print("test_mul_private_public succeeds")
def test_transpose(self):
tf.reset_default_graph()
prot = ABY3()
tfe.set_protocol(prot)
x = tfe.define_private_variable(tf.constant([[1, 2, 3], [4, 5, 6]]))
y = tfe.define_constant(np.array([[1, 2, 3], [4, 5, 6]]))
z1 = x.transpose()
z2 = tfe.transpose(y)
with tfe.Session() as sess:
# initialize variables
sess.run(tfe.global_variables_initializer())
# reveal result
result = sess.run(z1.reveal())
np.testing.assert_allclose(
result, np.array([[1, 4], [2, 5], [3, 6]]), rtol=0.0, atol=0.01
)
result = sess.run(z2)
np.testing.assert_allclose(
result, np.array([[1, 4], [2, 5], [3, 6]]), rtol=0.0, atol=0.01
)
def test_reduce_sum(self):
tf.reset_default_graph()
prot = ABY3()
tfe.set_protocol(prot)
x = tfe.define_private_variable(tf.constant([[1, 2, 3], [4, 5, 6]]))
y = tfe.define_constant(np.array([[1, 2, 3], [4, 5, 6]]))
z1 = x.reduce_sum(axis=1, keepdims=True)
z2 = tfe.reduce_sum(y, axis=0, keepdims=False)
with tfe.Session() as sess:
# initialize variables
sess.run(tfe.global_variables_initializer())
# reveal result
result = sess.run(z1.reveal())
np.testing.assert_allclose(result,
np.array([[6], [15]]),
rtol=0.0,
atol=0.01)
result = sess.run(z2)
np.testing.assert_allclose(result,
np.array([5, 7, 9]),
rtol=0.0,
atol=0.01)
def test_mul_AB_public_private(self):
tf.reset_default_graph()
prot = ABY3()
tfe.set_protocol(prot)
x = tfe.define_constant(np.array([[1, 2, 3], [4, 5, 6]]),
share_type=ARITHMETIC)
y = tfe.define_private_variable(
tf.constant([[1, 0, 0], [0, 1, 0]]),
apply_scaling=False,
share_type=BOOLEAN,
factory=prot.bool_factory,
)
z = tfe.mul_AB(x, y)
with tfe.Session() as sess:
# initialize variables
sess.run(tfe.global_variables_initializer())
# reveal result
result = sess.run(z.reveal())
np.testing.assert_allclose(result,
np.array([[1, 0, 0], [0, 5, 0]]),
rtol=0.0,
atol=0.01)
def test_sub_private_public(self):
tf.reset_default_graph()
prot = ABY3()
tfe.set_protocol(prot)
# define inputs
x = tfe.define_private_variable(tf.ones(shape=(2, 2)))
y = tfe.define_constant(np.array([[0.6, 0.7], [0.8, 0.9]]))
# define computation
z1 = x - y
z2 = y - x
with tfe.Session() as sess:
# initialize variables
sess.run(tfe.global_variables_initializer())
# reveal result
result = sess.run(z1.reveal())
np.testing.assert_allclose(result,
np.array([[0.4, 0.3], [0.2, 0.1]]),
rtol=0.0,
atol=0.01)
result = sess.run(z2.reveal())
np.testing.assert_allclose(result,
np.array([[-0.4, -0.3], [-0.2, -0.1]]),
rtol=0.0,
atol=0.01)
print("test_sub_private_public succeeds")
def test_neg(self):
tf.reset_default_graph()
prot = ABY3()
tfe.set_protocol(prot)
# define inputs
x = tfe.define_private_variable(np.array([[0.6, -0.7], [-0.8, 0.9]]))
y = tfe.define_constant(np.array([[0.6, -0.7], [-0.8, 0.9]]))
# define computation
z1 = -x
z2 = -y
with tfe.Session() as sess:
# initialize variables
sess.run(tfe.global_variables_initializer())
# reveal result
result = sess.run(z1.reveal())
np.testing.assert_allclose(result,
np.array([[-0.6, 0.7], [0.8, -0.9]]),
rtol=0.0,
atol=0.01)
result = sess.run(z2)
np.testing.assert_allclose(result,
np.array([[-0.6, 0.7], [0.8, -0.9]]),
rtol=0.0,
atol=0.01)
print("test_neg succeeds")
def test_matmul_public_private():
tf.reset_default_graph()
prot = ABY3()
tfe.set_protocol(prot)
def provide_input():
# normal TensorFlow operations can be run locally
# as part of defining a private input, in this
# case on the machine of the input provider
return tf.constant(np.array([[1.1, 1.2], [1.3, 1.4], [1.5, 1.6]]))
# define inputs
x = tfe.define_private_variable(tf.ones(shape=(2, 2)))
y = tfe.define_public_input('input-provider', provide_input)
v = tfe.define_constant(np.ones((2, 2)))
# define computation
w = y.matmul(x) # matmul_public_private
z = w.matmul(v) # matmul_private_public
with tfe.Session() as sess:
# initialize variables
sess.run(tfe.global_variables_initializer())
# reveal result
result = sess.run(w.reveal())
close(result, np.array([[2.3, 2.3], [2.7, 2.7], [3.1, 3.1]]))
result = sess.run(z.reveal())
close(result, np.array([[4.6, 4.6], [5.4, 5.4], [6.2, 6.2]]))
print("test_matmul_public_private succeeds")
def test_add_private_public(self):
tf.reset_default_graph()
prot = ABY3()
tfe.set_protocol(prot)
# define inputs
x = tfe.define_private_variable(tf.ones(shape=(2, 2)))
y = tfe.define_constant(np.array([[0.6, 0.7], [0.8, 0.9]]))
# define computation
z = x + y
z = y + z
with tfe.Session() as sess:
# initialize variables
sess.run(tfe.global_variables_initializer())
# reveal result
result = sess.run(z.reveal())
expected = np.array([[2.2, 2.4], [2.6, 2.8]])
np.testing.assert_allclose(result, expected, rtol=0.0, atol=0.01)
def test_add_private_public():
tf.reset_default_graph()
prot = ABY3()
tfe.set_protocol(prot)
# define inputs
x = tfe.define_private_variable(tf.ones(shape=(2, 2)))
y = tfe.define_constant(np.array([[0.6, 0.7], [0.8, 0.9]]))
# define computation
z = x + y
z = y + z
with tfe.Session() as sess:
# initialize variables
sess.run(tfe.global_variables_initializer())
# reveal result
result = sess.run(z.reveal())
close(result, np.array([[2.2, 2.4], [2.6, 2.8]]))
print("test_add_private_public succeeds")
