tornadocontrib/noble-curves
1
0
Fork 0
forked from tornado-packages/noble-curves
Code Pull Requests Activity

ed448: rename to edwardsToMontgomeryPub

Browse Source
This commit is contained in:
Paul Miller 2023-04-23 18:29:17 +00:00
parent 895ee3a1a4
commit 63653255e1
No known key found for this signature in database
GPG Key ID: 697079DA6878B89B
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
src/ed448.ts
View File

@ -146,11 +146,12 @@ export const x448 = montgomery({
* const aPub = ed448.getPublicKey(utils.randomPrivateKey());
* x448.getSharedSecret(edwardsToMontgomery(aPub), edwardsToMontgomery(someonesPub))
*/
export function edwardsToMontgomery(edwardsPub: string | Uint8Array): Uint8Array {
export function edwardsToMontgomeryPub(edwardsPub: string | Uint8Array): Uint8Array {
const { y } = ed448.ExtendedPoint.fromHex(edwardsPub);
const _1n = BigInt(1);
return Fp.toBytes(Fp.create((y - _1n) * Fp.inv(y + _1n)));
}
export const edwardsToMontgomery = edwardsToMontgomeryPub; // deprecated
// Hash To Curve Elligator2 Map
const ELL2_C1 = (Fp.ORDER - BigInt(3)) / BigInt(4); // 1. c1 = (q - 3) / 4 # Integer arithmetic