WolfSSL Kyber fixes

* Make sure wc_kyber implementation is compiled using CMake (also for Zephyr) * Fix compilation issue when Liboqs is also enabled Signed-off-by: Tobias Frauenschläger <[email protected]>
wolfSSL · Jul 23, 2024 · f89e229 · f89e229
1 parent a9ff773
commit f89e229
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Showing 3 changed files with 16 additions and 2 deletions.
diff --git a/cmake/functions.cmake b/cmake/functions.cmake
@@ -198,6 +198,9 @@ function(generate_build_flags)
     if(WOLFSSL_XCHACHA OR WOLFSSL_USER_SETTINGS)
         set(BUILD_XCHACHA "yes" PARENT_SCOPE)
     endif()
+    if(WOLFSSL_KYBER OR WOLFSSL_USER_SETTINGS)
+        set(BUILD_WC_KYBER "yes" PARENT_SCOPE)
+    endif()
     if(WOLFSSL_OQS OR WOLFSSL_USER_SETTINGS)
         set(BUILD_FALCON "yes" PARENT_SCOPE)
         set(BUILD_SPHINCS "yes" PARENT_SCOPE)
@@ -794,6 +797,15 @@ function(generate_lib_src_list LIB_SOURCES)
               list(APPEND LIB_SOURCES wolfcrypt/src/dilithium.c)
          endif()
 
+         if(BUILD_WC_KYBER)
+              list(APPEND LIB_SOURCES wolfcrypt/src/wc_kyber.c)
+              list(APPEND LIB_SOURCES wolfcrypt/src/wc_kyber_poly.c)
+
+              if(BUILD_INTEL_ASM)
+                   list(APPEND LIB_SOURCES wolfcrypt/src/wc_kyber_asm.S)
+               endif()
+         endif()
+
          if(BUILD_EXT_KYBER)
               list(APPEND LIB_SOURCES wolfcrypt/src/ext_kyber.c)
          endif()

diff --git a/wolfcrypt/src/ext_kyber.c b/wolfcrypt/src/ext_kyber.c
@@ -27,7 +27,7 @@
 #include <wolfssl/wolfcrypt/error-crypt.h>
 #include <wolfssl/wolfcrypt/logging.h>
 
-#ifdef WOLFSSL_HAVE_KYBER
+#if defined(WOLFSSL_HAVE_KYBER) && !defined(WOLFSSL_WC_KYBER)
 #include <wolfssl/wolfcrypt/ext_kyber.h>
 
 #ifdef NO_INLINE
@@ -750,4 +750,4 @@ int wc_KyberKey_EncodePublicKey(KyberKey* key, unsigned char* out, word32 len)
     return ret;
 }
 
-#endif /* WOLFSSL_HAVE_KYBER */
+#endif /* WOLFSSL_HAVE_KYBER && !WOLFSSL_WC_KYBER */
diff --git a/zephyr/CMakeLists.txt b/zephyr/CMakeLists.txt
@@ -117,6 +117,8 @@ if(CONFIG_WOLFSSL)
     zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/tfm.c)
     zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/wc_dsp.c)
     zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/wc_encrypt.c)
+    zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/wc_kyber.c)
+    zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/wc_kyber_poly.c)
     zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/wc_pkcs11.c)
     zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/wc_port.c)
     zephyr_library_sources(${ZEPHYR_CURRENT_MODULE_DIR}/wolfcrypt/src/wolfevent.c)