Web: https://iacr.org/news/item/19613

Nov. 21, 2022, 2:24 p.m. |

IACR News iacr.org

ePrint Report: Efficient Aggregatable BLS Signatures with Chaum-Pedersen Proofs

Jeff Burges, Oana Ciobotaru, Syed Lavasani, Alistair Stewart


BLS signatures have fast aggregated signature verification but slow individual signature verification. We propose a three part optimisation that dramatically reduces CPU time in large distributed system using BLS signatures: First, public keys should be given on both source groups $\mathbb{G}_1$ and $\mathbb{G}_2$, with a proof-of-possession check for correctness. Second, aggregated BLS signatures should carry their particular aggregate public key in $\mathbb{G}_2$, so …

eprint report signatures

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