Transposition Key-Based Transposition

GLEngine.transpose(ciphertext, transposition_key)

Returns the transposition of the input ciphertext. Does not consume any level.

• Input:
  • GLCiphertext
  • GLTranspositionKey
• Output:
  • GLCiphertext

import numpy as np

from desilofhe import GLEngine

engine = GLEngine()
shape = engine.shape
secret_key = engine.create_secret_key()
transposition_key = engine.create_transposition_key(secret_key)

message = np.ones(shape, dtype=np.float64)
ciphertext = engine.encrypt(message, secret_key)

transposed = engine.transpose(ciphertext, transposition_key)

Plaintext Transposition

GLEngine.transpose(plaintext)

Returns the transposition of the input plaintext.

• Input:
  • GLPlaintext
• Output:
  • GLPlaintext

import numpy as np

from desilofhe import GLEngine

engine = GLEngine()
shape = engine.shape

message = np.ones(shape, dtype=np.float64)
plaintext = engine.encode(message)

transposed = engine.transpose(plaintext)