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			88 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			88 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
package bulletproof
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import (
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	crand "crypto/rand"
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	"testing"
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	"github.com/gtank/merlin"
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	"github.com/stretchr/testify/require"
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	"source.quilibrium.com/quilibrium/monorepo/nekryptology/pkg/core/curves"
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)
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func TestRangeVerifyHappyPath(t *testing.T) {
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	curve := curves.ED25519()
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	n := 256
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	prover, err := NewRangeProver(n, []byte("rangeDomain"), []byte("ippDomain"), *curve)
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	require.NoError(t, err)
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	v := curve.Scalar.Random(crand.Reader)
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	gamma := curve.Scalar.Random(crand.Reader)
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	g := curve.Point.Random(crand.Reader)
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	h := curve.Point.Random(crand.Reader)
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	u := curve.Point.Random(crand.Reader)
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	proofGenerators := RangeProofGenerators{
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		g: g,
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		h: h,
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		u: u,
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	}
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	transcript := merlin.NewTranscript("test")
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	proof, err := prover.Prove(v, gamma, n, proofGenerators, transcript)
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	require.NoError(t, err)
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	verifier, err := NewRangeVerifier(n, []byte("rangeDomain"), []byte("ippDomain"), *curve)
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	require.NoError(t, err)
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	transcriptVerifier := merlin.NewTranscript("test")
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	capV := getcapV(v, gamma, g, h)
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	verified, err := verifier.Verify(proof, capV, proofGenerators, n, transcriptVerifier)
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	require.NoError(t, err)
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	require.True(t, verified)
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}
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func TestRangeVerifyNotInRange(t *testing.T) {
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	curve := curves.ED25519()
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	n := 2
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	prover, err := NewRangeProver(n, []byte("rangeDomain"), []byte("ippDomain"), *curve)
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	require.NoError(t, err)
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	v := curve.Scalar.Random(crand.Reader)
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	gamma := curve.Scalar.Random(crand.Reader)
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	g := curve.Point.Random(crand.Reader)
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	h := curve.Point.Random(crand.Reader)
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	u := curve.Point.Random(crand.Reader)
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	proofGenerators := RangeProofGenerators{
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		g: g,
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		h: h,
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		u: u,
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	}
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	transcript := merlin.NewTranscript("test")
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	_, err = prover.Prove(v, gamma, n, proofGenerators, transcript)
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	require.Error(t, err)
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}
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func TestRangeVerifyNonRandom(t *testing.T) {
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	curve := curves.ED25519()
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	n := 2
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	prover, err := NewRangeProver(n, []byte("rangeDomain"), []byte("ippDomain"), *curve)
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	require.NoError(t, err)
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	v := curve.Scalar.One()
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	gamma := curve.Scalar.Random(crand.Reader)
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	g := curve.Point.Random(crand.Reader)
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	h := curve.Point.Random(crand.Reader)
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	u := curve.Point.Random(crand.Reader)
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	proofGenerators := RangeProofGenerators{
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		g: g,
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		h: h,
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		u: u,
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	}
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	transcript := merlin.NewTranscript("test")
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	proof, err := prover.Prove(v, gamma, n, proofGenerators, transcript)
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	require.NoError(t, err)
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	verifier, err := NewRangeVerifier(n, []byte("rangeDomain"), []byte("ippDomain"), *curve)
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	require.NoError(t, err)
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	transcriptVerifier := merlin.NewTranscript("test")
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	capV := getcapV(v, gamma, g, h)
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	verified, err := verifier.Verify(proof, capV, proofGenerators, n, transcriptVerifier)
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	require.NoError(t, err)
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	require.True(t, verified)
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}
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