create_public_key_b

Engine.create_public_key_b(secret_key, public_key_a, level)

Creates an public key b, used to create a common public key for multiparty computation. Requires a secret key and a public key a as inputs.

• Input
  • SecretKey
  • PublicKeyA
  • level: optional
    • Creates the key with a reduced size to contain only the specified multiplication levels.
• Output
  • PublicKeyB

from desilofhe import Engine

engine = Engine(use_multiparty=True)
secret_key = engine.create_secret_key()
public_key_a = engine.create_public_key_a()

public_key_b = engine.create_public_key_b(secret_key, public_key_a)

level_3_public_key_b = engine.create_public_key_b(secret_key, public_key_a, level=3)