526 lines
13 KiB
Go
526 lines
13 KiB
Go
package cgokzg4844
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import (
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"encoding/hex"
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"errors"
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"fmt"
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"math/rand"
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"os"
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"path/filepath"
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"testing"
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"github.com/stretchr/testify/require"
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"gopkg.in/yaml.v3"
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)
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func TestMain(m *testing.M) {
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ret := LoadTrustedSetupFile("../../src/trusted_setup.txt")
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if ret != 0 {
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panic("failed to load trusted setup")
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}
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defer FreeTrustedSetup()
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code := m.Run()
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os.Exit(code)
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}
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///////////////////////////////////////////////////////////////////////////////
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// Helper Functions
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///////////////////////////////////////////////////////////////////////////////
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func (f *Bytes32) UnmarshalText(input []byte) error {
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bytes, err := hex.DecodeString(string(input[2:]))
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if err != nil {
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return err
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}
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if len(bytes) != len(f) {
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return errors.New("invalid Bytes32")
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}
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copy(f[:], bytes)
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return nil
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}
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func (f *Bytes48) UnmarshalText(input []byte) error {
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bytes, err := hex.DecodeString(string(input[2:]))
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if err != nil {
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return err
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}
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if len(bytes) != len(f) {
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return errors.New("invalid Bytes48")
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}
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copy(f[:], bytes)
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return nil
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}
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func (b *Blob) UnmarshalText(input []byte) error {
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blobBytes, err := hex.DecodeString(string(input[2:]))
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if err != nil {
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return err
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}
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if len(blobBytes) != len(b) {
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return errors.New("invalid Blob")
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}
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copy(b[:], blobBytes)
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return nil
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}
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func GetRandFieldElement(seed int64) Bytes32 {
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rand.Seed(seed)
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bytes := make([]byte, 31)
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_, err := rand.Read(bytes)
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if err != nil {
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panic("failed to get random field element")
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}
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// This leaves the last byte in fieldElementBytes as
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// zero, which guarantees it's a canonical field element.
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var fieldElementBytes Bytes32
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copy(fieldElementBytes[:], bytes)
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return fieldElementBytes
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}
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func GetRandBlob(seed int64) Blob {
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var blob Blob
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for i := 0; i < BytesPerBlob; i += BytesPerFieldElement {
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fieldElementBytes := GetRandFieldElement(seed + int64(i))
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copy(blob[i:i+BytesPerFieldElement], fieldElementBytes[:])
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}
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return blob
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}
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/*
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HumanBytes will convert an integer to a human-readable value. Adapted from:
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https://programming.guide/go/formatting-byte-size-to-human-readable-format.html
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*/
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func HumanBytes(b int64) string {
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const unit = 1024
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if b < unit {
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return fmt.Sprintf("%dB", b)
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}
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div, exp := int64(unit), 0
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for n := b / unit; n >= unit; n /= unit {
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div *= unit
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exp++
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}
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return fmt.Sprintf("%v%cB", float64(b)/float64(div), "KMGTPE"[exp])
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}
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///////////////////////////////////////////////////////////////////////////////
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// Tests
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///////////////////////////////////////////////////////////////////////////////
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var (
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testDir = "../../tests"
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blobToKZGCommitmentTests = filepath.Join(testDir, "blob_to_kzg_commitment/*/*/*")
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computeKZGProofTests = filepath.Join(testDir, "compute_kzg_proof/*/*/*")
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computeBlobKZGProofTests = filepath.Join(testDir, "compute_blob_kzg_proof/*/*/*")
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verifyKZGProofTests = filepath.Join(testDir, "verify_kzg_proof/*/*/*")
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verifyBlobKZGProofTests = filepath.Join(testDir, "verify_blob_kzg_proof/*/*/*")
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verifyBlobKZGProofBatchTests = filepath.Join(testDir, "verify_blob_kzg_proof_batch/*/*/*")
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)
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func TestBlobToKZGCommitment(t *testing.T) {
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type Test struct {
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Input struct {
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Blob string `yaml:"blob"`
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}
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Output *Bytes48 `yaml:"output"`
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}
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tests, err := filepath.Glob(blobToKZGCommitmentTests)
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require.NoError(t, err)
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require.True(t, len(tests) > 0)
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for _, testPath := range tests {
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t.Run(testPath, func(t *testing.T) {
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testFile, err := os.Open(testPath)
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require.NoError(t, err)
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test := Test{}
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err = yaml.NewDecoder(testFile).Decode(&test)
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require.NoError(t, testFile.Close())
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require.NoError(t, err)
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var blob Blob
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err = blob.UnmarshalText([]byte(test.Input.Blob))
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if err != nil {
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require.Nil(t, test.Output)
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return
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}
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commitment, ret := BlobToKZGCommitment(blob)
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if ret == C_KZG_OK {
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require.NotNil(t, test.Output)
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require.Equal(t, test.Output[:], commitment[:])
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} else {
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require.Nil(t, test.Output)
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}
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})
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}
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}
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func TestComputeKZGProof(t *testing.T) {
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type Test struct {
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Input struct {
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Blob string `yaml:"blob"`
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Z string `yaml:"z"`
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}
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Output *[]string `yaml:"output"`
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}
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tests, err := filepath.Glob(computeKZGProofTests)
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require.NoError(t, err)
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require.True(t, len(tests) > 0)
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for _, testPath := range tests {
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t.Run(testPath, func(t *testing.T) {
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testFile, err := os.Open(testPath)
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require.NoError(t, err)
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test := Test{}
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err = yaml.NewDecoder(testFile).Decode(&test)
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require.NoError(t, testFile.Close())
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require.NoError(t, err)
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var blob Blob
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err = blob.UnmarshalText([]byte(test.Input.Blob))
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if err != nil {
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require.Nil(t, test.Output)
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return
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}
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var z Bytes32
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err = z.UnmarshalText([]byte(test.Input.Z))
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if err != nil {
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require.Nil(t, test.Output)
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return
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}
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proof, y, ret := ComputeKZGProof(blob, z)
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if ret == C_KZG_OK {
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require.NotNil(t, test.Output)
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var expectedProof Bytes48
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err = expectedProof.UnmarshalText([]byte((*test.Output)[0]))
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require.NoError(t, err)
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require.Equal(t, expectedProof[:], proof[:])
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var expectedY Bytes32
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err = expectedY.UnmarshalText([]byte((*test.Output)[1]))
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require.NoError(t, err)
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require.Equal(t, expectedY[:], y[:])
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} else {
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require.Nil(t, test.Output)
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}
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})
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}
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}
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func TestComputeBlobKZGProof(t *testing.T) {
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type Test struct {
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Input struct {
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Blob string `yaml:"blob"`
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Commitment string `yaml:"commitment"`
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}
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Output *Bytes48 `yaml:"output"`
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}
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tests, err := filepath.Glob(computeBlobKZGProofTests)
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require.NoError(t, err)
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require.True(t, len(tests) > 0)
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for _, testPath := range tests {
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t.Run(testPath, func(t *testing.T) {
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testFile, err := os.Open(testPath)
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require.NoError(t, err)
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test := Test{}
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err = yaml.NewDecoder(testFile).Decode(&test)
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require.NoError(t, testFile.Close())
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require.NoError(t, err)
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var blob Blob
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err = blob.UnmarshalText([]byte(test.Input.Blob))
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if err != nil {
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require.Nil(t, test.Output)
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return
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}
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var commitment Bytes48
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err = commitment.UnmarshalText([]byte(test.Input.Commitment))
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if err != nil {
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require.Nil(t, test.Output)
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return
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}
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proof, ret := ComputeBlobKZGProof(blob, commitment)
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if ret == C_KZG_OK {
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require.NotNil(t, test.Output)
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require.Equal(t, test.Output[:], proof[:])
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} else {
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require.Nil(t, test.Output)
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}
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})
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}
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}
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func TestVerifyKZGProof(t *testing.T) {
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type Test struct {
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Input struct {
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Commitment string `yaml:"commitment"`
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Z string `yaml:"z"`
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Y string `yaml:"y"`
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Proof string `yaml:"proof"`
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}
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Output *bool `yaml:"output"`
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}
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tests, err := filepath.Glob(verifyKZGProofTests)
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require.NoError(t, err)
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require.True(t, len(tests) > 0)
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for _, testPath := range tests {
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t.Run(testPath, func(t *testing.T) {
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testFile, err := os.Open(testPath)
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require.NoError(t, err)
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test := Test{}
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err = yaml.NewDecoder(testFile).Decode(&test)
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require.NoError(t, testFile.Close())
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require.NoError(t, err)
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var commitment Bytes48
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err = commitment.UnmarshalText([]byte(test.Input.Commitment))
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if err != nil {
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require.Nil(t, test.Output)
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return
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}
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var z Bytes32
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err = z.UnmarshalText([]byte(test.Input.Z))
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if err != nil {
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require.Nil(t, test.Output)
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return
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}
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var y Bytes32
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err = y.UnmarshalText([]byte(test.Input.Y))
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if err != nil {
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require.Nil(t, test.Output)
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return
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}
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var proof Bytes48
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err = proof.UnmarshalText([]byte(test.Input.Proof))
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if err != nil {
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require.Nil(t, test.Output)
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return
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}
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valid, ret := VerifyKZGProof(commitment, z, y, proof)
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if ret == C_KZG_OK {
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require.NotNil(t, test.Output)
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require.Equal(t, *test.Output, valid)
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} else {
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require.Nil(t, test.Output)
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}
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})
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}
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}
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func TestVerifyBlobKZGProof(t *testing.T) {
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type Test struct {
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Input struct {
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Blob string `yaml:"blob"`
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Commitment string `yaml:"commitment"`
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Proof string `yaml:"proof"`
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}
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Output *bool `yaml:"output"`
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}
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tests, err := filepath.Glob(verifyBlobKZGProofTests)
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require.NoError(t, err)
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require.True(t, len(tests) > 0)
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for _, testPath := range tests {
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t.Run(testPath, func(t *testing.T) {
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testFile, err := os.Open(testPath)
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require.NoError(t, err)
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test := Test{}
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err = yaml.NewDecoder(testFile).Decode(&test)
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require.NoError(t, testFile.Close())
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require.NoError(t, err)
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var blob Blob
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err = blob.UnmarshalText([]byte(test.Input.Blob))
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if err != nil {
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require.Nil(t, test.Output)
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return
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}
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var commitment Bytes48
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err = commitment.UnmarshalText([]byte(test.Input.Commitment))
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if err != nil {
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require.Nil(t, test.Output)
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return
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}
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var proof Bytes48
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err = proof.UnmarshalText([]byte(test.Input.Proof))
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if err != nil {
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require.Nil(t, test.Output)
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return
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}
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valid, ret := VerifyBlobKZGProof(blob, commitment, proof)
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if ret == C_KZG_OK {
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require.NotNil(t, test.Output)
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require.Equal(t, *test.Output, valid)
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} else {
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require.Nil(t, test.Output)
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}
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})
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}
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}
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func TestVerifyBlobKZGProofBatch(t *testing.T) {
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type Test struct {
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Input struct {
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Blobs []string `yaml:"blobs"`
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Commitments []string `yaml:"commitments"`
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Proofs []string `yaml:"proofs"`
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}
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Output *bool `yaml:"output"`
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}
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tests, err := filepath.Glob(verifyBlobKZGProofBatchTests)
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require.NoError(t, err)
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require.True(t, len(tests) > 0)
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for _, testPath := range tests {
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t.Run(testPath, func(t *testing.T) {
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testFile, err := os.Open(testPath)
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require.NoError(t, err)
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test := Test{}
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err = yaml.NewDecoder(testFile).Decode(&test)
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require.NoError(t, testFile.Close())
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require.NoError(t, err)
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var blobs []Blob
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for _, b := range test.Input.Blobs {
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var blob Blob
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err = blob.UnmarshalText([]byte(b))
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if err != nil {
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require.Nil(t, test.Output)
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return
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}
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blobs = append(blobs, blob)
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}
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var commitments []Bytes48
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for _, c := range test.Input.Commitments {
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var commitment Bytes48
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err = commitment.UnmarshalText([]byte(c))
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if err != nil {
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require.Nil(t, test.Output)
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return
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}
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commitments = append(commitments, commitment)
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}
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var proofs []Bytes48
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for _, p := range test.Input.Proofs {
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var proof Bytes48
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err = proof.UnmarshalText([]byte(p))
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if err != nil {
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require.Nil(t, test.Output)
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return
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}
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proofs = append(proofs, proof)
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}
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valid, ret := VerifyBlobKZGProofBatch(blobs, commitments, proofs)
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if ret == C_KZG_OK {
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require.NotNil(t, test.Output)
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require.Equal(t, *test.Output, valid)
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} else {
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require.Nil(t, test.Output)
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}
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})
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}
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}
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///////////////////////////////////////////////////////////////////////////////
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// Benchmarks
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///////////////////////////////////////////////////////////////////////////////
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func Benchmark(b *testing.B) {
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const length = 64
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blobs := [length]Blob{}
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commitments := [length]Bytes48{}
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proofs := [length]Bytes48{}
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fields := [length]Bytes32{}
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for i := 0; i < length; i++ {
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blob := GetRandBlob(int64(i))
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commitment, ret := BlobToKZGCommitment(blob)
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require.Equal(b, ret, C_KZG_OK)
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proof, ret := ComputeBlobKZGProof(blob, Bytes48(commitment))
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require.Equal(b, ret, C_KZG_OK)
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blobs[i] = blob
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commitments[i] = Bytes48(commitment)
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proofs[i] = Bytes48(proof)
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fields[i] = GetRandFieldElement(int64(i))
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}
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///////////////////////////////////////////////////////////////////////////
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// Public functions
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///////////////////////////////////////////////////////////////////////////
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b.Run("BlobToKZGCommitment", func(b *testing.B) {
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for n := 0; n < b.N; n++ {
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BlobToKZGCommitment(blobs[0])
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}
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})
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b.Run("ComputeKZGProof", func(b *testing.B) {
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for n := 0; n < b.N; n++ {
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ComputeKZGProof(blobs[0], fields[0])
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}
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})
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b.Run("ComputeBlobKZGProof", func(b *testing.B) {
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for n := 0; n < b.N; n++ {
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ComputeBlobKZGProof(blobs[0], commitments[0])
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}
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})
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b.Run("VerifyKZGProof", func(b *testing.B) {
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for n := 0; n < b.N; n++ {
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VerifyKZGProof(commitments[0], fields[0], fields[1], proofs[0])
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}
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})
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b.Run("VerifyBlobKZGProof", func(b *testing.B) {
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for n := 0; n < b.N; n++ {
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VerifyBlobKZGProof(blobs[0], commitments[0], proofs[0])
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}
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})
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for i := 1; i <= len(blobs); i *= 2 {
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b.Run(fmt.Sprintf("VerifyBlobKZGProofBatch(count=%v)", i), func(b *testing.B) {
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for n := 0; n < b.N; n++ {
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VerifyBlobKZGProofBatch(blobs[:i], commitments[:i], proofs[:i])
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}
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})
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}
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///////////////////////////////////////////////////////////////////////////
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// Private functions
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///////////////////////////////////////////////////////////////////////////
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for i := 2; i <= 20; i += 2 {
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numBytes := int64(1 << i)
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bytes := make([]byte, numBytes)
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b.Run(fmt.Sprintf("sha256(size=%v)", HumanBytes(numBytes)), func(b *testing.B) {
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b.SetBytes(numBytes)
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for n := 0; n < b.N; n++ {
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sha256(bytes)
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}
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})
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}
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}
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