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Jack Grigg
2019-09-24 10:54:15 +01:00
parent 7f3036d2c8
commit 4ad3988e43
38 changed files with 259 additions and 18 deletions
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6
zcash_primitives/src/jubjub/mod.rs
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@@ -1,3 +1,6 @@
//! The [Jubjub] curve for efficient elliptic curve operations in circuits built
//! over [BLS12-381].
//!
//! Jubjub is a twisted Edwards curve defined over the BLS12-381 scalar
//! field, Fr. It takes the form `-x^2 + y^2 = 1 + dx^2y^2` with
//! `d = -(10240/10241)`. It is birationally equivalent to a Montgomery
@@ -16,6 +19,9 @@
//! It is a complete twisted Edwards curve, so the equivalence with
//! the Montgomery curve forms a group isomorphism, allowing points
//! to be freely converted between the two forms.
//!
//! [Jubjub]: https://zips.z.cash/protocol/protocol.pdf#jubjub
//! [BLS12-381]: pairing::bls12_381
use ff::{Field, PrimeField, SqrtField};
use pairing::Engine;