Merge branch 'master' into bson-rust-fix-build

projects/golang/Dockerfile

@@ -38,6 +38,7 @@ COPY build.sh text_fuzzer.go \
      unicode_fuzzer.go \
      x509_fuzzer.go \
      ecdsa_fuzzer.go \
+     dsa_fuzzer.go \
      aes_fuzzer.go \
      h2c_fuzzer.go \
      fuzz_x_h2c.options \

projects/golang/build.sh

@@ -53,6 +53,9 @@ function setup_golang_fuzzers() {
 	mkdir -p $SRC/golang/crypto/ecdsa
 	cp $SRC/ecdsa_fuzzer.go ./crypto/ecdsa/
 
+	mkdir -p $SRC/golang/crypto/dsa
+	cp $SRC/dsa_fuzzer.go ./crypto/dsa/
+
 	mkdir -p $SRC/golang/crypto/aes
 	cp $SRC/aes_fuzzer.go ./crypto/aes/
 
@@ -82,6 +85,8 @@ function compile_fuzzers() {
         then
 		compile_go_fuzzer $FUZZ_ROOT/crypto/ecdsa FuzzEcdsaSign FuzzEcdsaSign$version
 		compile_native_go_fuzzer $FUZZ_ROOT/crypto/ecdsa FuzzEcdsaVerify FuzzEcdsaVerify$version
+		compile_native_go_fuzzer $FUZZ_ROOT/crypto/dsa FuzzDsaSign FuzzDsaSign$version
+		compile_native_go_fuzzer $FUZZ_ROOT/crypto/dsa FuzzDsaVerify FuzzDsaVerify$version
         fi
 	compile_go_fuzzer $FUZZ_ROOT/crypto/x509 FuzzParseCert fuzz_parse_cert$version
 	compile_go_fuzzer $FUZZ_ROOT/crypto/x509 FuzzPemDecrypt fuzz_pem_decrypt$version

projects/golang/dsa_fuzzer.go

@@ -0,0 +1,72 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+package dsa
+
+import (
+	"bytes"
+	"crypto/dsa"
+	"math/big"
+	"testing"
+)
+
+func FuzzDsaVerify(f *testing.F) {
+	f.Fuzz(func(t *testing.T, data1, data2, data3 []byte, s1, s2 string, s uint8) {
+		bi1, ok := new(big.Int).SetString(s1, 16)
+		bi2, ok2 := new(big.Int).SetString(s2, 16)
+		if !ok && !ok2 {
+			return
+		}
+		var priv dsa.PrivateKey
+		params := &priv.Parameters
+		sizes := []dsa.ParameterSizes{
+			dsa.L1024N160,
+			dsa.L2048N224,
+			dsa.L2048N256,
+			dsa.L3072N256,
+		}
+		err := dsa.GenerateParameters(params, bytes.NewReader(data1), sizes[int(s)%len(sizes)])
+		if err != nil {
+			return
+		}
+		err = dsa.GenerateKey(&priv, bytes.NewReader(data2))
+		if err != nil {
+			return
+		}
+		dsa.Verify(&priv.PublicKey, data3, bi1, bi2)
+	})
+}
+
+func FuzzDsaSign(f *testing.F) {
+	f.Fuzz(func(t *testing.T, data1, data2, data3, data4 []byte, s uint8) {
+		var priv dsa.PrivateKey
+		params := &priv.Parameters
+		sizes := []dsa.ParameterSizes{
+			dsa.L1024N160,
+			dsa.L2048N224,
+			dsa.L2048N256,
+			dsa.L3072N256,
+		}
+		err := dsa.GenerateParameters(params, bytes.NewReader(data1), sizes[int(s)%len(sizes)])
+		if err != nil {
+			return
+		}
+		err = dsa.GenerateKey(&priv, bytes.NewReader(data2))
+		if err != nil {
+			return
+		}
+		dsa.Sign(bytes.NewReader(data3), &priv, data4)
+	})
+}