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feat(backend): Use Schnorr signatures for signed PODs (#236)

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* Implement non-native extension field arithmetic

* Schnorr signature verification (#221)

* Use Schnorr signatures for signed PODs

* add custom gates (#237)

* Clippy

* Formatting

* Apply suggestions from code review

Co-authored-by: Eduard S. <eduardsanou@posteo.net>

* Fix typo

* Fix tests

* Point -> PublicKey

* Remove default nnf_div implementation for clarity

* Code review & edits for clarity

* Remove suspicious mutation

* Simplify computation

* Fix division

* Fix

* Update src/backends/plonky2/primitives/ec/curve.rs

Co-authored-by: Eduard S. <eduardsanou@posteo.net>

* Update src/backends/plonky2/primitives/ec/curve.rs

Co-authored-by: Eduard S. <eduardsanou@posteo.net>

* Fixes

* Add public key to signed POD struct

* Style

* Elaborate on in-circuit field->biguint conversion

* Add missing gates

* Comments

* Add bits to biguint struct

* Comments

* Comment

---------

Co-authored-by: Daniel Gulotta <dgulotta@alum.mit.edu>
Co-authored-by: Eduard S. <eduardsanou@posteo.net>
This commit is contained in:
Ahmad Afuni 2025-06-10 00:24:16 +10:00 • committed by GitHub
parent 541c264586
commit c66506c048
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GPG key ID: B5690EEEBB952194
22 changed files with 2995 additions and 456 deletions
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4
Cargo.toml
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@ -24,6 +24,10 @@ serde = "1.0.219"
serde_json = "1.0.140"
base64 = "0.22.1"
schemars = "0.8.22"
num = { version = "0.4.3", features = ["num-bigint"] }
num-bigint = { version = "0.4.6", features = ["rand"] }
# num-bigint 0.4 requires rand 0.8
rand = "0.8.5"
hashbrown = { version = "0.14.3", default-features = false, features = ["serde"] }
pest = "2.8.0"
pest_derive = "2.8.0"