pksig_cyh¶
Chow-Yiu-Hui - Identity-based ring signatures
From: “S. Chow, S. Yiu and L. Hui - Efficient identity based ring signature.”
Published in: ACNS 2005
Available from: Vol 3531 of LNCS, pages 499-512
Notes:
- type: signature (ring-based)
- setting: bilinear groups (asymmetric)
Authors: |
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Date: | 11/2011 |
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class
pksig_cyh.
CYH
(groupObj)[source]¶ Bases:
charm.toolbox.PKSig.PKSig
>>> from charm.toolbox.pairinggroup import PairingGroup >>> users = [ "alice", "bob", "carlos", "dexter", "eddie"] >>> signer = "bob" >>> group = PairingGroup('SS512') >>> cyh = CYH(group) >>> (master_public_key, master_secret_key) = cyh.setup() >>> (signer, public_key, secret_key) = cyh.keygen(master_secret_key, signer) >>> secret_key = (signer, public_key, secret_key) >>> msg = 'please sign this new message!' >>> signature = cyh.sign(secret_key, users, msg) >>> cyh.verify(master_public_key, users, msg, signature) True