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Merge commit '56da51f3ce79fa4e6144af5f986d3bb9e0838590' into jubjub-subtree-update

This commit is contained in:
Jack Grigg 2020-08-22 02:03:05 +01:00
parent 984d31dc52 56da51f3ce
commit 33b0758f4f
2 changed files with 5 additions and 2 deletions
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4
jubjub/src/fr.rs
View File

@ -174,7 +174,7 @@ const R2: Fr = Fr([
0x04f6_547b_8d12_7688,
]);
/// R^2 = 2^768 mod r
/// R^3 = 2^768 mod r
const R3: Fr = Fr([
0xe0d6_c656_3d83_0544,
0x323e_3883_598d_0f85,
@ -276,7 +276,7 @@ impl Fr {
//
// and computing their sum in the field. It remains to see that arbitrary 256-bit
// numbers can be placed into Montgomery form safely using the reduction. The
// reduction works so long as the product is less than R=2^256 multipled by
// reduction works so long as the product is less than R=2^256 multiplied by
// the modulus. This holds because for any `c` smaller than the modulus, we have
// that (2^256 - 1)*c is an acceptable product for the reduction. Therefore, the
// reduction always works so long as `c` is in the field; in this case it is either the

3
jubjub/src/lib.rs
View File

@ -52,6 +52,9 @@ mod fr;
pub use bls12_381::Scalar as Fq;
pub use fr::Fr;
/// A better name than Fr.
pub type Scalar = Fr;
const FR_MODULUS_BYTES: [u8; 32] = [
183, 44, 247, 214, 94, 14, 151, 208, 130, 16, 200, 204, 147, 32, 104, 166, 0, 59, 52, 1, 1, 59,
103, 6, 169, 175, 51, 101, 234, 180, 125, 14,