mirror of
https://github.com/kremalicious/metamask-extension.git
synced 2024-11-23 02:10:12 +01:00
38 lines
1.3 KiB
Diff
38 lines
1.3 KiB
Diff
lazy precompute for faster module initialization
|
|
|
|
diff --git a/node_modules/secp256k1/lib/js/ecpointg.js b/node_modules/secp256k1/lib/js/ecpointg.js
|
|
index 0144364..09a87c5 100644
|
|
--- a/node_modules/secp256k1/lib/js/ecpointg.js
|
|
+++ b/node_modules/secp256k1/lib/js/ecpointg.js
|
|
@@ -8,11 +8,12 @@ function ECPointG () {
|
|
this.x = BN.fromBuffer(Buffer.from('79BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798', 'hex'))
|
|
this.y = BN.fromBuffer(Buffer.from('483ADA7726A3C4655DA4FBFC0E1108A8FD17B448A68554199C47D08FFB10D4B8', 'hex'))
|
|
this.inf = false
|
|
-
|
|
- this._precompute()
|
|
+ this.precomputed = undefined
|
|
}
|
|
|
|
ECPointG.prototype._precompute = function () {
|
|
+ if (this.precomputed !== undefined) return
|
|
+
|
|
var ecpoint = new ECPoint(this.x, this.y)
|
|
|
|
var dstep = 4
|
|
@@ -34,6 +35,7 @@ ECPointG.prototype._precompute = function () {
|
|
}
|
|
|
|
ECPointG.prototype.mul = function (num) {
|
|
+ this._precompute()
|
|
// Algorithm 3.42 Fixed-base NAF windowing method for point multiplication
|
|
var step = this.precomputed.doubles.step
|
|
var points = this.precomputed.doubles.points
|
|
@@ -68,6 +70,7 @@ ECPointG.prototype.mul = function (num) {
|
|
}
|
|
|
|
ECPointG.prototype.mulAdd = function (k1, p2, k2) {
|
|
+ this._precompute()
|
|
var nafPointsP1 = this.precomputed.naf
|
|
var nafPointsP2 = p2._getNAFPoints1()
|
|
var wnd = [nafPointsP1.points, nafPointsP2.points]
|