relinearize

Engine.relinearize(ciphertext, relinearization_key)

곱셈으로 3차원이 된 암호문을 2차원으로 재선형화를 합니다.

• 인풋:
  • Ciphertext: 곱셈으로 3차원이 된 경우만 처리가 가능합니다.
  • RelinearizationKey
• 아웃풋:
  • Ciphertext

from desilofhe import Engine

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

message1 = [1, 2, 3]
ciphertext1 = engine.encrypt(message1, public_key)

message2 = [4, 5, 6]
ciphertext2 = engine.encrypt(message2, public_key)

multiplied = engine.multiply(ciphertext1, ciphertext2)
relinearized = engine.relinearize(multiplied, relinearization_key)