Update golangci-lint workflow

.github/workflows/golangci-lint.yml

@@ -15,18 +15,18 @@ jobs:
     name: lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-go@v3
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v5
         with:
-          go-version: '1.20'
+          go-version: '1.21'
           cache: false
       - name: golangci-lint
-        uses: golangci/golangci-lint-action@v4
+        uses: golangci/golangci-lint-action@v6
         with:
           # Require: The version of golangci-lint to use.
           # When `install-mode` is `binary` (default) the value can be v1.2 or v1.2.3 or `latest` to use the latest version.
           # When `install-mode` is `goinstall` the value can be v1.2.3, `latest`, or the hash of a commit.
-          version: v1.56.2
+          version: v1.60.3
 
           # Optional: working directory, useful for monorepos
           # working-directory: somedir
@@ -51,4 +51,4 @@ jobs:
           # skip-build-cache: true
 
           # Optional: The mode to install golangci-lint. It can be 'binary' or 'goinstall'.
-          # install-mode: "goinstall"
+          # install-mode: "goinstall"

.golangci.yml

@@ -96,6 +96,7 @@ linters-settings:
     excludes:
       - G107 # variables in URLs
       - G404 # use of weak random generator
+      - G115 # Disable for now due to the *many* warnings
 
   gocritic:
     disabled-checks:

Makefile

@@ -7,9 +7,9 @@ generate: tidy
 
 # Coding style static check.
 lint: tidy
-	@echo "Please setup a linter!"
-	#golangci-lint run
-	#staticcheck go list ./...
+	@go install github.com/golangci/golangci-lint/cmd/golangci-lint@v1.60.3
+	@go mod tidy
+	golangci-lint run
 
 vet: tidy
 	go vet ./...

group/mod/int.go

@@ -363,13 +363,13 @@ func (i *Int) UnmarshalFrom(r io.Reader) (int, error) {
 // BigEndian encodes the value of this Int into a big-endian byte-slice
 // at least min bytes but no more than max bytes long.
 // Panics if max != 0 and the Int cannot be represented in max bytes.
-func (i *Int) BigEndian(min, max int) []byte {
+func (i *Int) BigEndian(minBytes, maxBytes int) []byte {
 	act := i.MarshalSize()
 	pad, ofs := act, 0
-	if pad < min {
-		pad, ofs = min, min-act
+	if pad < minBytes {
+		pad, ofs = minBytes, minBytes-act
 	}
-	if max != 0 && pad > max {
+	if maxBytes != 0 && pad > maxBytes {
 		panic("Int not representable in max bytes")
 	}
 	buf := make([]byte, pad)
@@ -392,18 +392,18 @@ func (i *Int) SetBytes(a []byte) kyber.Scalar {
 // LittleEndian encodes the value of this Int into a little-endian byte-slice
 // at least min bytes but no more than max bytes long.
 // Panics if max != 0 and the Int cannot be represented in max bytes.
-func (i *Int) LittleEndian(min, max int) []byte {
+func (i *Int) LittleEndian(minByte, maxBytes int) []byte {
 	act := i.MarshalSize()
 	vBytes := i.V.Bytes()
 	vSize := len(vBytes)
 	if vSize < act {
 		act = vSize
 	}
 	pad := act
-	if pad < min {
-		pad = min
+	if pad < minByte {
+		pad = minByte
 	}
-	if max != 0 && pad > max {
+	if maxBytes != 0 && pad > maxBytes {
 		panic("Int not representable in max bytes")
 	}
 	buf := make([]byte, pad)

pairing/bls12381/bls12381_test.go

@@ -356,10 +356,10 @@ func testGroup(t *testing.T, g kyber.Group, rand cipher.Stream) []kyber.Point {
 		buf.Reset()
 		s := g.Scalar().Pick(rand)
 		if _, err := s.MarshalTo(buf); err != nil {
-			t.Fatalf("encoding of secret fails: " + err.Error())
+			t.Fatalf("encoding of secret fails: %s", err.Error())
 		}
 		if _, err := stmp.UnmarshalFrom(buf); err != nil {
-			t.Fatalf("decoding of secret fails: " + err.Error())
+			t.Fatalf("decoding of secret fails: %s", err.Error())
 		}
 		if !stmp.Equal(s) {
 			t.Fatalf("decoding produces different secret than encoded")
@@ -368,10 +368,10 @@ func testGroup(t *testing.T, g kyber.Group, rand cipher.Stream) []kyber.Point {
 		buf.Reset()
 		p := pick(rand)
 		if _, err := p.MarshalTo(buf); err != nil {
-			t.Fatalf("encoding of point fails: " + err.Error())
+			t.Fatalf("encoding of point fails: %s", err)
 		}
 		if _, err := ptmp.UnmarshalFrom(buf); err != nil {
-			t.Fatalf("decoding of point fails: " + err.Error())
+			t.Fatalf("decoding of point fails: %s", err.Error())
 		}
 
 		if !ptmp.Equal(p) {

pairing/bn254/gfp_decl.go

@@ -13,7 +13,7 @@ import (
 //nolint:unused // maybe useful
 var hasBMI2 = cpu.X86.HasBMI2
 
-// go:noescape
+//go:noescape
 func gfpNeg(c, a *gfP)
 
 //go:noescape

pairing/bn254/point.go

@@ -289,10 +289,11 @@ func mapToPoint(domain []byte, u *gfP) kyber.Point {
 // Borrowed from: https://github.com/kilic/bls12-381/blob/master/hash_to_field.go
 func expandMsgXmdKeccak256(domain, msg []byte, outLen int) []byte {
 	h := sha3.NewLegacyKeccak256()
-	domainLen := uint8(len(domain))
-	if domainLen > 255 {
+	if len(domain) > 255 {
 		panic("invalid domain length")
 	}
+	domainLen := uint8(len(domain))
+
 	// DST_prime = DST || I2OSP(len(DST), 1)
 	// b_0 = H(Z_pad || msg || l_i_b_str || I2OSP(0, 1) || DST_prime)
 	_, _ = h.Write(make([]byte, h.BlockSize()))

pairing/bn254/point_test.go

@@ -199,10 +199,3 @@ func gnarkExpandMsgXmd(msg, dst []byte, lenInBytes int) ([]byte, error) {
 	}
 	return res, nil
 }
-
-func min(a, b int) int {
-	if a < b {
-		return a
-	}
-	return b
-}

util/test/test.go

@@ -297,10 +297,10 @@ func testEncodingDecoding(t *testing.T, g kyber.Group, ptmp kyber.Point, stmp ky
 		buf.Reset()
 		s := g.Scalar().Pick(rand)
 		if _, err := s.MarshalTo(buf); err != nil {
-			t.Errorf("encoding of secret fails: " + err.Error())
+			t.Errorf("encoding of secret fails: %s", err.Error())
 		}
 		if _, err := stmp.UnmarshalFrom(buf); err != nil {
-			t.Errorf("decoding of secret fails: " + err.Error())
+			t.Errorf("decoding of secret fails: %s", err.Error())
 		}
 		if !stmp.Equal(s) {
 			t.Errorf("decoding produces different secret than encoded")
@@ -309,10 +309,10 @@ func testEncodingDecoding(t *testing.T, g kyber.Group, ptmp kyber.Point, stmp ky
 		buf.Reset()
 		p := g.Point().Pick(rand)
 		if _, err := p.MarshalTo(buf); err != nil {
-			t.Errorf("encoding of point fails: " + err.Error())
+			t.Errorf("encoding of point fails: %s", err.Error())
 		}
 		if _, err := ptmp.UnmarshalFrom(buf); err != nil {
-			t.Errorf("decoding of point fails: " + err.Error())
+			t.Errorf("decoding of point fails: %s", err.Error())
 		}
 		if !ptmp.Equal(p) {
 			t.Errorf("decoding produces different point than encoded")