Merge pull request #19 from notmike-5/remove-fn-dsa

removes FN-DSA (Falcon)

Author: cryptoquick

.gitignore

@@ -1,4 +1,3 @@
-target/
 build/
 dist/
 *.o
@@ -7,3 +6,8 @@ __pycache__
 python/build/
 *.egg-info/
 node_modules/
+**.gcno
+**.lcov
+**/target/
+tags
+TAGS

CMakeLists.txt

@@ -15,22 +15,11 @@ set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 
-# Platform-specific settings
-if(APPLE)
-    # Set strict floating-point model for macOS to match other platforms
-    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -ffp-contract=off -fno-fast-math")
-    # Define FPEMU macro for Falcon to use emulated floating-point on macOS
-    # This avoids platform-specific floating-point behavior
-    add_definitions(-DFALCON_FPEMU=1)
-    message(STATUS "macOS detected: Using emulated floating-point for Falcon")
-endif()
-
 # Include directories
 include_directories(
     ${CMAKE_CURRENT_SOURCE_DIR}/include
     ${CMAKE_CURRENT_SOURCE_DIR}/dilithium/ref
     ${CMAKE_CURRENT_SOURCE_DIR}/sphincsplus/ref
-    ${CMAKE_CURRENT_SOURCE_DIR}/falcon
 )
 
 # Custom randombytes implementation
@@ -67,20 +56,6 @@ set(SLH_DSA_SOURCES
     sphincsplus/ref/fips202.c
 )
 
-# FN-DSA-512 (FALCON) source files
-set(FN_DSA_SOURCES
-    falcon/codec.c
-    falcon/common.c
-    falcon/falcon.c
-    falcon/fft.c
-    falcon/fpr.c
-    falcon/keygen.c
-    falcon/shake.c
-    falcon/sign.c
-    falcon/vrfy.c
-    falcon/rng.c
-)
-
 # libbitcoinpqc source files
 set(BITCOINPQC_SOURCES
     src/bitcoinpqc.c
@@ -92,18 +67,13 @@ set(BITCOINPQC_SOURCES
     src/slh_dsa/keygen.c
     src/slh_dsa/sign.c
     src/slh_dsa/verify.c
-    src/fn_dsa/utils.c
-    src/fn_dsa/keygen.c
-    src/fn_dsa/sign.c
-    src/fn_dsa/verify.c
 )
 
 # Define the main library target
 add_library(bitcoinpqc STATIC
     ${BITCOINPQC_SOURCES}
     ${ML_DSA_SOURCES}
     ${SLH_DSA_SOURCES}
-    ${FN_DSA_SOURCES}
     ${CUSTOM_RANDOMBYTES}
 )
 
@@ -116,7 +86,6 @@ target_include_directories(bitcoinpqc PUBLIC
 target_compile_definitions(bitcoinpqc PRIVATE
     DILITHIUM_MODE=2  # ML-DSA-44 (Dilithium2)
     PARAMS=sphincs-shake-128s
-    FALCON_LOGN_512=9
     CUSTOM_RANDOMBYTES=1
 )