[bitcoin-dev] Schnorr sigs vs pairing sigs
lloyd.fourn at gmail.com
Fri Mar 6 06:40:24 UTC 2020
There are a strong arguments for and against pairing based sigs in Bitcoin.
One very strong argument in favour over non-deterministic signatures like
Schnorr over BLS is it enables a kind of signature encryption called
"adaptor signatures". This construction is key to many exciting up and
coming layer 2 protocols and isn't possible unless the signature scheme
self plug: I have a paper on this topic called "One-Time Verifiably
Encrypted Signatures A.K.A Adaptor Signatures"
On Fri, Mar 6, 2020 at 6:03 AM Erik Aronesty via bitcoin-dev <
bitcoin-dev at lists.linuxfoundation.org> wrote:
> Schnorr sigs rely so heavily on the masking provided by a random
> nonce. There are so many easy ways to introduce bias (hash + modulo,
> for example).
> Even 2 bits of bias can result in serious attacks:
> Maybe pairing based sigs - which are slower - might be both more
> flexible, and better suited to secure implemetnations?
> bitcoin-dev mailing list
> bitcoin-dev at lists.linuxfoundation.org
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