multiply_pytorch_tensor

Engine.multiply_pytorch_tensor(x, y)
Returns the ciphertext resulting from the multiplication of a ciphertext and a PyTorch tensor. Consumes a level.
  • Input:
    • x: torch.Tensor | Ciphertext
    • y: torch.Tensor | Ciphertext
    • x and y must be passed as positional arguments.
    • If x is a Ciphertext, y must be a PyTorch tensor and vice versa.
  • Output:
    • Ciphertext

Warning

  • The matrix form does not yet support this operation.
import torch

from desilofhe import Engine

engine = Engine()
secret_key = engine.create_secret_key()
public_key = engine.create_public_key(secret_key)

message = [1, 2, 3]
ciphertext = engine.encrypt(message, public_key)

tensor = torch.tensor([4, 5, 6])

multiplied = engine.multiply_pytorch_tensor(ciphertext, tensor)  # [4, 10, 18]