diff --git a/tests/fuzz/CMakeLists.txt b/tests/fuzz/CMakeLists.txt
index 4f37efa..17ec3f6 100644
--- a/tests/fuzz/CMakeLists.txt
+++ b/tests/fuzz/CMakeLists.txt
@@ -10,29 +10,71 @@
     set(libs ${libs} ${ZLIB_LIBRARIES})
 endif(ENABLE_ZLIB_SUPPORT)
 
-add_executable(fuzz_x509csr fuzz_x509csr.c onefile.c)
-target_link_libraries(fuzz_x509csr ${libs})
+find_library(FUZZINGENGINE_LIB FuzzingEngine)
 
-add_executable(fuzz_x509crl fuzz_x509crl.c onefile.c)
-target_link_libraries(fuzz_x509crl ${libs})
+if(NOT FUZZINGENGINE_LIB)
+    add_executable(fuzz_x509csr fuzz_x509csr.c onefile.c)
+    target_link_libraries(fuzz_x509csr ${libs})
 
-add_executable(fuzz_x509crt fuzz_x509crt.c onefile.c)
-target_link_libraries(fuzz_x509crt ${libs})
+    add_executable(fuzz_x509crl fuzz_x509crl.c onefile.c)
+    target_link_libraries(fuzz_x509crl ${libs})
 
-add_executable(fuzz_privkey fuzz_privkey.c onefile.c)
-target_link_libraries(fuzz_privkey ${libs})
+    add_executable(fuzz_x509crt fuzz_x509crt.c onefile.c)
+    target_link_libraries(fuzz_x509crt ${libs})
 
-add_executable(fuzz_pubkey fuzz_pubkey.c onefile.c)
-target_link_libraries(fuzz_pubkey ${libs})
+    add_executable(fuzz_privkey fuzz_privkey.c onefile.c)
+    target_link_libraries(fuzz_privkey ${libs})
 
-add_executable(fuzz_client fuzz_client.c common.c onefile.c)
-target_link_libraries(fuzz_client ${libs})
+    add_executable(fuzz_pubkey fuzz_pubkey.c onefile.c)
+    target_link_libraries(fuzz_pubkey ${libs})
 
-add_executable(fuzz_server fuzz_server.c common.c onefile.c)
-target_link_libraries(fuzz_server ${libs})
+    add_executable(fuzz_client fuzz_client.c common.c onefile.c)
+    target_link_libraries(fuzz_client ${libs})
 
-add_executable(fuzz_dtlsclient fuzz_dtlsclient.c common.c onefile.c)
-target_link_libraries(fuzz_dtlsclient ${libs})
+    add_executable(fuzz_server fuzz_server.c common.c onefile.c)
+    target_link_libraries(fuzz_server ${libs})
 
-add_executable(fuzz_dtlsserver fuzz_dtlsserver.c common.c onefile.c)
-target_link_libraries(fuzz_dtlsserver ${libs})
+    add_executable(fuzz_dtlsclient fuzz_dtlsclient.c common.c onefile.c)
+    target_link_libraries(fuzz_dtlsclient ${libs})
+
+    add_executable(fuzz_dtlsserver fuzz_dtlsserver.c common.c onefile.c)
+    target_link_libraries(fuzz_dtlsserver ${libs})
+else()
+    project(fuzz CXX)
+
+    add_executable(fuzz_x509csr fuzz_x509csr.c)
+    target_link_libraries(fuzz_x509csr ${libs} FuzzingEngine)
+    SET_TARGET_PROPERTIES(fuzz_x509csr PROPERTIES LINKER_LANGUAGE CXX)
+
+    add_executable(fuzz_x509crl fuzz_x509crl.c)
+    target_link_libraries(fuzz_x509crl ${libs} FuzzingEngine)
+    SET_TARGET_PROPERTIES(fuzz_x509crl PROPERTIES LINKER_LANGUAGE CXX)
+
+    add_executable(fuzz_x509crt fuzz_x509crt.c)
+    target_link_libraries(fuzz_x509crt ${libs} FuzzingEngine)
+    SET_TARGET_PROPERTIES(fuzz_x509crt PROPERTIES LINKER_LANGUAGE CXX)
+
+    add_executable(fuzz_privkey fuzz_privkey.c)
+    target_link_libraries(fuzz_privkey ${libs} FuzzingEngine)
+    SET_TARGET_PROPERTIES(fuzz_privkey PROPERTIES LINKER_LANGUAGE CXX)
+
+    add_executable(fuzz_pubkey fuzz_pubkey.c)
+    target_link_libraries(fuzz_pubkey ${libs} FuzzingEngine)
+    SET_TARGET_PROPERTIES(fuzz_pubkey PROPERTIES LINKER_LANGUAGE CXX)
+
+    add_executable(fuzz_client fuzz_client.c common.c)
+    target_link_libraries(fuzz_client ${libs} FuzzingEngine)
+    SET_TARGET_PROPERTIES(fuzz_client PROPERTIES LINKER_LANGUAGE CXX)
+
+    add_executable(fuzz_server fuzz_server.c common.c)
+    target_link_libraries(fuzz_server ${libs} FuzzingEngine)
+    SET_TARGET_PROPERTIES(fuzz_server PROPERTIES LINKER_LANGUAGE CXX)
+
+    add_executable(fuzz_dtlsclient fuzz_dtlsclient.c common.c)
+    target_link_libraries(fuzz_dtlsclient ${libs} FuzzingEngine)
+    SET_TARGET_PROPERTIES(fuzz_dtlsclient PROPERTIES LINKER_LANGUAGE CXX)
+
+    add_executable(fuzz_dtlsserver fuzz_dtlsserver.c common.c)
+    target_link_libraries(fuzz_dtlsserver ${libs} FuzzingEngine)
+    SET_TARGET_PROPERTIES(fuzz_dtlsserver PROPERTIES LINKER_LANGUAGE CXX)
+endif()
diff --git a/tests/fuzz/README.md b/tests/fuzz/README.md
new file mode 100644
index 0000000..a779c29
--- /dev/null
+++ b/tests/fuzz/README.md
@@ -0,0 +1,35 @@
+What is it ?
+------
+
+This directory contains fuzz targets.
+Fuzz targets are simple codes using the library.
+They are used with a so-called fuzz driver, which will generate inputs, try to process them with the fuzz target, and alert in case of an unwanted behavior (such as a buffer overflow for instance).
+
+These targets were meant to be used with oss-fuzz but can be used in other contexts.
+
+This code was contributed by Philippe Antoine ( Catena cyber ).
+
+How to run ?
+------
+
+To run the fuzz targets like oss-fuzz :
+```
+git clone https://github.com/google/oss-fuzz
+cd oss-fuzz
+python infra/helper.py build_image mbedtls
+python infra/helper.py build_fuzzers --sanitizer address mbedtls
+python infra/helper.py run_fuzzer mbedtls fuzz_client
+```
+You can use `undefined` sanitizer as well as `address` sanitizer
+And you can run any of the fuzz targets like `fuzz_client`
+
+To run the fuzz targets without oss-fuzz, you first need to install one libFuzzingEngine (libFuzzer for instance)
+Then you need to compile the code
+```
+perl scripts/config.pl set MBEDTLS_PLATFORM_TIME_ALT
+mkdir build
+cd build
+cmake ..
+make
+```
+Finally, you can run the targets like `./test/fuzz/fuzz_client`