Error while building liboqs with "-DDILITHIUM_USE_AES" enabled

[kamlesh0hrs]

Getting error when trying to build liboqs for dilithium5 with -DDILITHIUM_USE_AES enabled.

To Reproduce
Steps to reproduce the behavior:
1. Modify src/sig/dilithium/CMakeLists.txt file to enable DILITHIUM_USE_AES

            diff --git a/src/sig/dilithium/CMakeLists.txt b/src/sig/dilithium/CMakeLists.txt          
            index b992392b..7c14b103 100644
            --- a/src/sig/dilithium/CMakeLists.txt
            +++ b/src/sig/dilithium/CMakeLists.txt
            @@ -59,7 +59,7 @@ endif()
            if(OQS_ENABLE_SIG_dilithium_5)
              add_library(dilithium_5_ref OBJECT sig_dilithium_5.c pqcrystals-dilithium_dilithium5_ref/ntt.c pqcrystals- 
               dilithium_dilithium5_ref/packing.c pqcrystals-dilithium_dilithium5_ref/poly.c pqcrystals- 
               dilithium_dilithium5_ref/polyvec.c pqcrystals-dilithium_dilithium5_ref/reduce.c pqcrystals- 
               dilithium_dilithium5_ref/rounding.c pqcrystals-dilithium_dilithium5_ref/sign.c pqcrystals- 
               dilithium_dilithium5_ref/symmetric-shake.c)
            -    target_compile_options(dilithium_5_ref PUBLIC -DDILITHIUM_MODE=5 -DDILITHIUM_RANDOMIZED_SIGNING)
           +    target_compile_options(dilithium_5_ref PUBLIC -DDILITHIUM_MODE=5 -DDILITHIUM_RANDOMIZED_SIGNING  -DDILITHIUM_USE_AES)
                target_include_directories(dilithium_5_ref PRIVATE ${CMAKE_CURRENT_LIST_DIR}/pqcrystals-dilithium_dilithium5_ref)
                target_include_directories(dilithium_5_ref PRIVATE ${PROJECT_SOURCE_DIR}/src/common/pqclean_shims)
                target_compile_options(dilithium_5_ref PUBLIC -DDILITHIUM_MODE=5 -DDILITHIUM_RANDOMIZED_SIGNING)

2. Run build command
   cmake -DCMAKE_INSTALL_PREFIX=$INSTALLDIR -S . -B _build -DBUILD_SHARED_LIBS=ON -DOPENSSL_ROOT_DIR=$OPENSSLINSTALL -DCMAKE_BUILD_TYPE=Debug

Error:
Scanning dependencies of target oqs
[ 94%] Building C object src/CMakeFiles/oqs.dir/kem/kem.c.o
[ 94%] Building C object src/CMakeFiles/oqs.dir/sig/sig.c.o
[ 95%] Linking C shared library ../lib/liboqs.so
[ 95%] Built target oqs
Scanning dependencies of target speed_sig
[ 95%] Building C object tests/CMakeFiles/speed_sig.dir/speed_sig.c.o
[ 96%] Linking C executable speed_sig
/usr/bin/ld: ../lib/liboqs.so.0.8.0-dev: undefined reference to pqcrystals_dilithium5_ref_verify' /usr/bin/ld: ../lib/liboqs.so.0.8.0-dev: undefined reference to pqcrystals_dilithium5_ref_keypair'
/usr/bin/ld: ../lib/liboqs.so.0.8.0-dev: undefined reference to pqcrystals_dilithium5aes_ref_dilithium_aes256ctr_init' /usr/bin/ld: ../lib/liboqs.so.0.8.0-dev: undefined reference to pqcrystals_dilithium5_ref_signature'
collect2: error: ld returned 1 exit status
make[2]: *** [tests/CMakeFiles/speed_sig.dir/build.make:85: tests/speed_sig] Error 1
make[1]: *** [CMakeFiles/Makefile2:1665: tests/CMakeFiles/speed_sig.dir/all] Error 2
make: *** [Makefile:152: all] Error 2

liboqs - master-dev
openssl - 3.2-dev

Could you please help if I am doing it the right way, or am i missing something?

Thanks,
Kamlesh

[dstebila]

We no longer support the Dilithium AES variants (see #1417). While there are apparently still macros for DILITHIUM_USE_AES in the upstream code that we use to implement Dilithium, it is an unsupported build option for liboqs.