PondPublicTensor¶

class
tf_encrypted.protocol.pond.
PondPublicTensor
(prot: tf_encrypted.protocol.pond.Pond, value_on_0: tf_encrypted.tensor.factory.AbstractTensor, value_on_1: tf_encrypted.tensor.factory.AbstractTensor, is_scaled: bool)[source]¶ This class represents a public tensor, known by at least the two servers but potentially known by more. Although there is only a single value we replicate it on both servers to avoid sending it from one to the other in the operations where it’s needed by both (eg multiplication).

unwrapped
¶ Unwrap the tensor.
This will return the value for each of the parties that collectively own the tensor.
In most cases, this will be the same value on each device.
x_0, y_0 = tensor.unwrapped # x_0 == 10 with the value pinned to player_0's device. # y_0 == 10 with the value pinned to player_1's device.
In most cases you will want to work on this data on the specified device.
x_0, y_0 = tensor.unwrapped with tf.device(prot.player_0.device_name): # act on x_0 with tf.device(prot.player_1.device_name): # act on y_0
In most cases you will not need to use this method. All funtions will hide this functionality for you (e.g. add, mul, etc).
