use curveB constant in g(x)

drand · Mar 2, 2024 · f26d313 · f26d313
1 parent cfdae42
commit f26d313
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Showing 2 changed files with 3 additions and 3 deletions.
diff --git a/pairing/bn254/constants.go b/pairing/bn254/constants.go
@@ -24,6 +24,8 @@ var p = bigFromBase10("218882428718392752222464057452572750886963111572978236626
 // p2 is p, represented as little-endian 64-bit words.
 var p2 = [4]uint64{0x3c208c16d87cfd47, 0x97816a916871ca8d, 0xb85045b68181585d, 0x30644e72e131a029}
 
+var curveB = newGFp(3)
+
 // np is the negative inverse of p, mod 2^256.
 var np = [4]uint64{0x87d20782e4866389, 0x9ede7d651eca6ac9, 0xd8afcbd01833da80, 0xf57a22b791888c6b}
 

diff --git a/pairing/bn254/curve.go b/pairing/bn254/curve.go
@@ -11,8 +11,6 @@ type curvePoint struct {
 	x, y, z, t gfP
 }
 
-var curveB = newGFp(3)
-
 // curveGen is the generator of G₁.
 var curveGen = &curvePoint{
 	x: *newGFp(1),
@@ -26,7 +24,7 @@ func g(x *gfP) *gfP {
 	y := &gfP{}
 	gfpMul(y, x, x)
 	gfpMul(y, y, x)
-	gfpAdd(y, y, newGFp(3))
+	gfpAdd(y, y, curveB)
 	return y
 }