ntt

Engine.ntt(ciphertext)

Apply an NTT (Number Theoretic Transform) to a ciphertext to make multiplication more efficiently. Does not consume any level. In any operation, the engine will automatically apply an NTT to 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)

ntt_form = engine.ntt(ciphertext)

Engine.ntt(plaintext)

Apply an NTT to a plaintext to make multiplication more efficiently. Does not consume any level. In any operation, the engine will automatically apply an NTT to 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)

ntt_form = engine.ntt(plaintext)