Research on the benefits of cross input signature aggregation.
https://hrf.org/latest/cisa-research-paper/
• CISA lets multiple Schnorr signatures from different inputs be combined into a single signature, significantly cutting transaction size and saving fees.
• By making multi-input transactions cheaper, CISA incentivizes and normalizes usage of collaborative privacy tools like CoinJoin and PayJoin instead of normal transactions, strengthening user anonymity while also improving network efficiency.
• Businesses can enjoy significant savings particularly for consolidation transactions which should counteract UTXO set growth and speed up adoption by exchanges and ecommerce.
• There is no singular CISA concept, there are different aggregation modes (full and half aggregation) and scopes (transaction-wide and block-wide) and their trade-offs need to be weighed for an upcoming proposal.
• CISA requires a soft fork and further cryptographic research is needed for a proposal that maximizes the benefits for the network.
Max
npub1kl…lx3vt
2025-03-28 19:13:11
Author Public Key
npub1klkk3vrzme455yh9rl2jshq7rc8dpegj3ndf82c3ks2sk40dxt7qulx3vtPublished at
2025-03-28 19:13:11Event JSON
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"content": "Research on the benefits of cross input signature aggregation.\nhttps://hrf.org/latest/cisa-research-paper/\n\n• CISA lets multiple Schnorr signatures from different inputs be combined into a single signature, significantly cutting transaction size and saving fees.\n\n• By making multi-input transactions cheaper, CISA incentivizes and normalizes usage of collaborative privacy tools like CoinJoin and PayJoin instead of normal transactions, strengthening user anonymity while also improving network efficiency.\n\n• Businesses can enjoy significant savings particularly for consolidation transactions which should counteract UTXO set growth and speed up adoption by exchanges and ecommerce.\n\n• There is no singular CISA concept, there are different aggregation modes (full and half aggregation) and scopes (transaction-wide and block-wide) and their trade-offs need to be weighed for an upcoming proposal.\n\n• CISA requires a soft fork and further cryptographic research is needed for a proposal that maximizes the benefits for the network.",
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}