forked from cerc-io/plugeth
tests/fuzzers/bls12381: Add BLST to fuzzing support (#24249)
* tests/fuzzers/bls12381: added blst library * go.mod: added blst dependency * tests/fuzzers/bls12381: stuff * tests/fuzzers/bls12381: added blst to pairing fuzzer
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1
go.mod
1
go.mod
@ -58,6 +58,7 @@ require (
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github.com/shirou/gopsutil v3.21.4-0.20210419000835-c7a38de76ee5+incompatible
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github.com/status-im/keycard-go v0.0.0-20190316090335-8537d3370df4
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github.com/stretchr/testify v1.7.0
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github.com/supranational/blst v0.3.8-0.20220526154634-513d2456b344 // indirect
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github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7
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github.com/tklauser/go-sysconf v0.3.5 // indirect
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github.com/tyler-smith/go-bip39 v1.0.1-0.20181017060643-dbb3b84ba2ef
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go.sum
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go.sum
@ -384,6 +384,12 @@ github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81P
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github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
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github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
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github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
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github.com/supranational/blst v0.3.6 h1:a24cPQB0qYpXPMZx177aapCM50/YrTMt/TKAUa7TzdM=
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github.com/supranational/blst v0.3.6/go.mod h1:jZJtfjgudtNl4en1tzwPIV3KjUnQUvG3/j+w+fVonLw=
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github.com/supranational/blst v0.3.7 h1:QObqTzlW30Z947JMe0MH12mVhFOxgtDapuWvPvCEGDE=
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github.com/supranational/blst v0.3.7/go.mod h1:jZJtfjgudtNl4en1tzwPIV3KjUnQUvG3/j+w+fVonLw=
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github.com/supranational/blst v0.3.8-0.20220526154634-513d2456b344 h1:m+8fKfQwCAy1QjzINvKe/pYtLjo2dl59x2w9YSEJxuY=
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github.com/supranational/blst v0.3.8-0.20220526154634-513d2456b344/go.mod h1:jZJtfjgudtNl4en1tzwPIV3KjUnQUvG3/j+w+fVonLw=
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github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7 h1:epCh84lMvA70Z7CTTCmYQn2CKbY8j86K7/FAIr141uY=
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github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7/go.mod h1:q4W45IWZaF22tdD+VEXcAWRA037jwmWEB5VWYORlTpc=
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github.com/tinylib/msgp v1.0.2/go.mod h1:+d+yLhGm8mzTaHzB+wgMYrodPfmZrzkirds8fDWklFE=
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@ -30,19 +30,20 @@ import (
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"github.com/consensys/gnark-crypto/ecc/bls12-381/fp"
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"github.com/consensys/gnark-crypto/ecc/bls12-381/fr"
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"github.com/ethereum/go-ethereum/crypto/bls12381"
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blst "github.com/supranational/blst/bindings/go"
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)
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func FuzzCrossPairing(data []byte) int {
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input := bytes.NewReader(data)
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// get random G1 points
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kpG1, cpG1, err := getG1Points(input)
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kpG1, cpG1, blG1, err := getG1Points(input)
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if err != nil {
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return 0
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}
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// get random G2 points
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kpG2, cpG2, err := getG2Points(input)
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kpG2, cpG2, blG2, err := getG2Points(input)
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if err != nil {
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return 0
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}
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@ -63,6 +64,15 @@ func FuzzCrossPairing(data []byte) int {
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panic("pairing mismatch gnark / geth ")
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}
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var b []byte
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ctx := blst.PairingCtx(false, b)
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// compute pairing using blst
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blst.PairingRawAggregate(ctx, blG2, blG1)
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blstResult := blst.PairingAsFp12(ctx)
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if !(bytes.Equal(blstResult.ToBendian(), bls12381.NewGT().ToBytes(kResult))) {
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panic("pairing mismatch blst / geth ")
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}
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return 1
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}
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@ -70,13 +80,13 @@ func FuzzCrossG1Add(data []byte) int {
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input := bytes.NewReader(data)
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// get random G1 points
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kp1, cp1, err := getG1Points(input)
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kp1, cp1, bl1, err := getG1Points(input)
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if err != nil {
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return 0
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}
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// get random G1 points
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kp2, cp2, err := getG1Points(input)
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kp2, cp2, bl2, err := getG1Points(input)
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if err != nil {
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return 0
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}
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@ -96,6 +106,11 @@ func FuzzCrossG1Add(data []byte) int {
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panic("G1 point addition mismatch gnark / geth ")
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}
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bl3 := blst.P1AffinesAdd([]*blst.P1Affine{bl1, bl2})
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if !(bytes.Equal(cp.Marshal(), bl3.Serialize())) {
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panic("G1 point addition mismatch blst / geth ")
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}
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return 1
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}
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@ -103,13 +118,13 @@ func FuzzCrossG2Add(data []byte) int {
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input := bytes.NewReader(data)
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// get random G2 points
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kp1, cp1, err := getG2Points(input)
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kp1, cp1, bl1, err := getG2Points(input)
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if err != nil {
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return 0
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}
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// get random G2 points
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kp2, cp2, err := getG2Points(input)
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kp2, cp2, bl2, err := getG2Points(input)
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if err != nil {
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return 0
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}
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@ -129,6 +144,11 @@ func FuzzCrossG2Add(data []byte) int {
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panic("G2 point addition mismatch gnark / geth ")
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}
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bl3 := blst.P2AffinesAdd([]*blst.P2Affine{bl1, bl2})
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if !(bytes.Equal(cp.Marshal(), bl3.Serialize())) {
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panic("G1 point addition mismatch blst / geth ")
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}
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return 1
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}
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@ -148,7 +168,7 @@ func FuzzCrossG1MultiExp(data []byte) int {
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break
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}
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// get a random G1 point as basis
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kp1, cp1, err := getG1Points(input)
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kp1, cp1, _, err := getG1Points(input)
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if err != nil {
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break
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}
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@ -183,11 +203,11 @@ func FuzzCrossG1MultiExp(data []byte) int {
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return 1
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}
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func getG1Points(input io.Reader) (*bls12381.PointG1, *gnark.G1Affine, error) {
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func getG1Points(input io.Reader) (*bls12381.PointG1, *gnark.G1Affine, *blst.P1Affine, error) {
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// sample a random scalar
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s, err := randomScalar(input, fp.Modulus())
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if err != nil {
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return nil, nil, err
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return nil, nil, nil, err
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}
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// compute a random point
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@ -206,14 +226,23 @@ func getG1Points(input io.Reader) (*bls12381.PointG1, *gnark.G1Affine, error) {
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panic("bytes(gnark.G1) != bytes(geth.G1)")
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}
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return kp, cp, nil
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// marshal gnark point -> blst point
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var p1 *blst.P1Affine
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var scalar *blst.Scalar
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scalar.Deserialize(s.Bytes())
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p1.From(scalar)
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if !bytes.Equal(p1.Serialize(), cpBytes) {
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panic("bytes(blst.G1) != bytes(geth.G1)")
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}
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return kp, cp, p1, nil
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}
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func getG2Points(input io.Reader) (*bls12381.PointG2, *gnark.G2Affine, error) {
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func getG2Points(input io.Reader) (*bls12381.PointG2, *gnark.G2Affine, *blst.P2Affine, error) {
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// sample a random scalar
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s, err := randomScalar(input, fp.Modulus())
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if err != nil {
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return nil, nil, err
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return nil, nil, nil, err
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}
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// compute a random point
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@ -232,7 +261,16 @@ func getG2Points(input io.Reader) (*bls12381.PointG2, *gnark.G2Affine, error) {
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panic("bytes(gnark.G2) != bytes(geth.G2)")
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}
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return kp, cp, nil
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// marshal gnark point -> blst point
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var p2 *blst.P2Affine
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var scalar *blst.Scalar
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scalar.Deserialize(s.Bytes())
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p2.From(scalar)
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if !bytes.Equal(p2.Serialize(), cpBytes) {
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panic("bytes(blst.G2) != bytes(geth.G2)")
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}
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return kp, cp, p2, nil
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}
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func randomScalar(r io.Reader, max *big.Int) (k *big.Int, err error) {
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