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zeekay
b096c17714
The TestBytes function returns true when all bytes are zero (point at infinity). The condition was inverted, causing non-zero points to be treated as infinity.
47 lines
1.1 KiB
Go
47 lines
1.1 KiB
Go
package bn256
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import (
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"testing"
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"github.com/consensys/gnark-crypto/ecc/bn254"
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)
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func TestNativeGnarkFormatIncompatibility(t *testing.T) {
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// Use official gnark serialization
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_, _, g1Gen, _ := bn254.Generators()
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wrongSer := g1Gen.Bytes()
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var evmG1 G1
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_, err := evmG1.Unmarshal(wrongSer[:])
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if err == nil {
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t.Fatalf("points serialized using the official bn254 serialization algorithm, should not work with the evm format")
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}
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}
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func TestSerRoundTrip(t *testing.T) {
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_, _, g1Gen, g2Gen := bn254.Generators()
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expectedG1 := G1{inner: g1Gen}
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bytesG1 := expectedG1.Marshal()
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expectedG2 := G2{inner: g2Gen}
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bytesG2 := expectedG2.Marshal()
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var gotG1 G1
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if _, err := gotG1.Unmarshal(bytesG1); err != nil {
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t.Fatalf("G1 unmarshal failed: %v", err)
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}
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var gotG2 G2
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if _, err := gotG2.Unmarshal(bytesG2); err != nil {
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t.Fatalf("G2 unmarshal failed: %v", err)
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}
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if !expectedG1.inner.Equal(&gotG1.inner) {
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t.Errorf("serialization roundtrip failed for G1")
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}
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if !expectedG2.inner.Equal(&gotG2.inner) {
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t.Errorf("serialization roundtrip failed for G2")
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}
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}
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