use github.com/vocdoni/vocdoni-z-sandbox/ecc/format instead deprecate…

…d internal package

go.mod

@@ -1,14 +1,13 @@
 module github.com/vocdoni/gnark-crypto-primitives
 
-go 1.23.0
-
-toolchain go1.23.2
+go 1.23.2
 
 require (
 	github.com/consensys/gnark v0.11.0
 	github.com/consensys/gnark-crypto v0.14.0
 	github.com/frankban/quicktest v1.14.6
 	github.com/iden3/go-iden3-crypto v0.0.17
+	github.com/vocdoni/vocdoni-z-sandbox v0.0.0-20241111130906-b8e8592696c6
 	go.vocdoni.io/dvote v1.10.2-0.20241024102542-c1ce6d744bc5
 )
 

go.sum

@@ -125,6 +125,8 @@ github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsT
 github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
 github.com/syndtr/goleveldb v1.0.1-0.20220614013038-64ee5596c38a h1:1ur3QoCqvE5fl+nylMaIr9PVV1w343YRDtsy+Rwu7XI=
 github.com/syndtr/goleveldb v1.0.1-0.20220614013038-64ee5596c38a/go.mod h1:RRCYJbIwD5jmqPI9XoAFR0OcDxqUctll6zUj/+B4S48=
+github.com/vocdoni/vocdoni-z-sandbox v0.0.0-20241111130906-b8e8592696c6 h1:Lnikgc2rZsnxZDwGbPhlsmq0yiLRotKDOGnuOOYU37o=
+github.com/vocdoni/vocdoni-z-sandbox v0.0.0-20241111130906-b8e8592696c6/go.mod h1:B43i83saYhSReG+jNAj0igxWcZYHGjF2AeXunaXnCQE=
 github.com/x448/float16 v0.8.4 h1:qLwI1I70+NjRFUR3zs1JPUCgaCXSh3SW62uAKT1mSBM=
 github.com/x448/float16 v0.8.4/go.mod h1:14CWIYCyZA/cWjXOioeEpHeN/83MdbZDRQHoFcYsOfg=
 github.com/xdg-go/pbkdf2 v1.0.0 h1:Su7DPu48wXMwC3bs7MCNG+z4FhcyEuz5dlvchbq0B0c=

hadd/homomorphic_add_test.go

@@ -15,7 +15,7 @@ import (
 	"github.com/consensys/gnark/std/algebra/native/twistededwards"
 	"github.com/consensys/gnark/test"
 	"github.com/iden3/go-iden3-crypto/babyjub"
-	tw "github.com/vocdoni/gnark-crypto-primitives/internal/twistededwards"
+	"github.com/vocdoni/vocdoni-z-sandbox/ecc/format"
 )
 
 type testHomomorphicAddCircuit struct {
@@ -57,8 +57,8 @@ func TestHomomorphicAdd(t *testing.T) {
 	msg1 := big.NewInt(3)
 	a1, a2 := encrypt(msg1, pubKey, k1)
 	// reduce the points to reduced twisted edwards form
-	xA1RTE, yA1RTE := tw.FromTEtoRTE(a1.X, a1.Y)
-	xA2RTE, yA2RTE := tw.FromTEtoRTE(a2.X, a2.Y)
+	xA1RTE, yA1RTE := format.FromTEtoRTE(a1.X, a1.Y)
+	xA2RTE, yA2RTE := format.FromTEtoRTE(a2.X, a2.Y)
 	// generate a second random k to encrypt a second message
 	k2, err := randomK()
 	if err != nil {
@@ -69,14 +69,14 @@ func TestHomomorphicAdd(t *testing.T) {
 	msg2 := big.NewInt(5)
 	b1, b2 := encrypt(msg2, pubKey, k2)
 	// reduce the points to reduced twisted edwards form
-	xB1RTE, yB1RTE := tw.FromTEtoRTE(b1.X, b1.Y)
-	xB2RTE, yB2RTE := tw.FromTEtoRTE(b2.X, b2.Y)
+	xB1RTE, yB1RTE := format.FromTEtoRTE(b1.X, b1.Y)
+	xB2RTE, yB2RTE := format.FromTEtoRTE(b2.X, b2.Y)
 	// calculate the sum of the encrypted messages to check the homomorphic property
 	c1 := new(babyjub.PointProjective).Add(a1.Projective(), b1.Projective()).Affine()
 	c2 := new(babyjub.PointProjective).Add(a2.Projective(), b2.Projective()).Affine()
 	// reduce the points to reduced twisted edwards form
-	xC1RTE, yC1RTE := tw.FromTEtoRTE(c1.X, c1.Y)
-	xC2RTE, yC2RTE := tw.FromTEtoRTE(c2.X, c2.Y)
+	xC1RTE, yC1RTE := format.FromTEtoRTE(c1.X, c1.Y)
+	xC2RTE, yC2RTE := format.FromTEtoRTE(c2.X, c2.Y)
 	// profiling the circuit compilation
 	p := profile.Start()
 	now := time.Now()

twistededwards/twistededwards_test.go

@@ -12,7 +12,7 @@ import (
 	"github.com/consensys/gnark/frontend/cs/r1cs"
 	"github.com/consensys/gnark/profile"
 	"github.com/consensys/gnark/test"
-	"github.com/vocdoni/gnark-crypto-primitives/internal/twistededwards"
+	"github.com/vocdoni/vocdoni-z-sandbox/ecc/format"
 )
 
 type testFromTwistedEdwards struct {
@@ -41,7 +41,7 @@ func TestFromTwistedEdwards(t *testing.T) {
 	x, _ := new(big.Int).SetString("20284931487578954787250358776722960153090567235942462656834196519767860852891", 10)
 	y, _ := new(big.Int).SetString("21185575020764391300398134415668786804224896114060668011215204645513129497221", 10)
 
-	xRTE, yRTE := twistededwards.FromTEtoRTE(x, y)
+	xRTE, yRTE := format.FromTEtoRTE(x, y)
 	// profiling the circuit compilation
 	p := profile.Start()
 	now := time.Now()
@@ -67,7 +67,7 @@ func TestFromReducedTwistedEdwards(t *testing.T) {
 	x, _ := new(big.Int).SetString("20284931487578954787250358776722960153090567235942462656834196519767860852891", 10)
 	y, _ := new(big.Int).SetString("21185575020764391300398134415668786804224896114060668011215204645513129497221", 10)
 
-	xRTE, yRTE := twistededwards.FromTEtoRTE(x, y)
+	xRTE, yRTE := format.FromTEtoRTE(x, y)
 	// profiling the circuit compilation
 	p := profile.Start()
 	now := time.Now()