HIBP-IPFE

This is an official implementation of HIBP-IPFE proposed by our paper "Privacy-enhanced Data Sharing Systems from Hierarchical ID-based Puncturable Functional Encryption with Inner Product Predicates".

This project provides PoC implementations to evaluate the performance of the following schemes, which adopts the PBC library with Type-A pairing (160, 512) for 80-bit security.

• Our scheme: Hierarchical identity-based puncturable inner product functional encryption (HIBP-IPFE)
• SDH+21's work: Hierarchical identity-based inner product functional encryption

Required libraries

• GMP 5.x
• PBC
• OPENSSL
• Charm-crypto

Run

1. SDH+21:

   python3 HIB-IPFE.py
   

2. Ours:

   python3 HIBP-IPFE.py
   

Test

## Key generation algorithm
python3 ./Test performance/keygen.py

## Encryption algorithm
python3 ./Test performance/enc.py

## Decryption algorithm
python3  ./Test performance/dec.py

## Key delegation algorithm
python3  ./Test performance/keydel.py

## Key puncture algorithm
python3  ./Test performance/keypun.py

Results

Key Generation	Encryption	Decryption

Key Delegation	Key Puncture