rescale

Engine.rescale(ciphertext)

Reduces the modulus by dividing by the scale factor before multiplication to lower the scale and noise. In any operation, the engine will automatically rescale input ciphertexts if needed. This function is intended for experts who want the best possible performance.

• input:
  • Ciphertext
• Output:
  • Ciphertext

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)

rescaled = engine.rescale(ciphertext)

Engine.rescale(plaintext)

Reduces the modulus by dividing by the scale factor before multiplication to lower the scale and noise. In any operation, the engine will automatically rescale input plaintexts if needed. This function is intended for experts who want the best possible performance.

• Input:
  • Plaintext
• Output:
  • Plaintext

from desilofhe import Engine

engine = Engine()

message = [1, 2, 3]
plaintext = engine.encode(message)

rescaled = engine.rescale(plaintext)