joye_scheme

Privacy-Preserving Aggregation Scheme (JL13)

Authors: Marc Joye, Benoit Libert

Title: “A Scalable Scheme for Privacy-Preserving Aggregation of Time-Series Data”

Published in: Financial Crypto 2013

Available from: http://joye.site88.net/papers/JL13aggreg.pdf

Notes: Enables plaintext evaluation of sums from encrypted values

Scheme Properties

• Type: aggregation (privacy-preserving)

• Setting: integer groups

• Assumption: Paillier

Implementation

Authors:

Iraklis Leontiadis

Date:

12/2013

class joye_scheme.Joye(users=2)

Bases: object

destruction_keys(pk)

encode(x, pk)

encrypt(x, pk, sk)

keygen()

sum(x1, x2, pk, k0)

sumfree(x1, x2, pk)

Tests sum evaluations without encryption