pksig_hess

Hess Identity-Based Signature (Hess02)

Authors: F. Hess

Title: “Efficient Identity Based Signature Schemes Based on Pairings”

Published in: Selected Areas in Cryptography, 2002

Available from: LNCS Vol. 2595, pages 310-324

Notes:

Scheme Properties

• Type: signature (identity-based)

• Setting: bilinear groups (asymmetric)

• Assumption: BDH

Implementation

Authors:

10. Ayo Akinyele

Date:

11/2011

class pksig_hess.Hess(groupObj)

Bases: PKSig

>>> from charm.toolbox.pairinggroup import PairingGroup
>>> group = PairingGroup('SS512')
>>> hess = Hess(group)
>>> (master_public_key, master_secret_key) = hess.setup()
>>> ID = "janedoe@email.com"
>>> (public_key, secret_key) = hess.keygen(master_secret_key, ID)
>>> msg = "this is a message!" 
>>> signature = hess.sign(master_public_key, secret_key, msg)
>>> hess.verify(master_public_key, public_key, msg, signature)
True

keygen(msk, ID)

setup()

sign(pk, sk, M)

verify(mpk, pk, M, sig)

pksig_hess.main()