Eremey Valetov
b93f1b2a8f
New library (uc2_blake3.h / uc2_blake3.c) for Phase 7: - Pure C BLAKE3 implementation (~300 lines) - 256-bit (32-byte) digests using BLAKE2s round function - Bao tree hashing structure for inputs > 1024 bytes - Incremental API (init/update/final) and one-shot helper - Constant-time hash comparison (timing-attack resistant) Suitable for content verification, block integrity checking, and content-addressable storage (replacing or supplementing the 64-bit FNV-1a hashes used in Merkle DAG and block store). 7 unit tests: - Empty input, determinism, collision avoidance - Incremental vs one-shot consistency - Single-byte-at-a-time update consistency - Avalanche effect (1-bit change → ~50% output bits flip) - Constant-time comparison
40 lines
1.5 KiB
CMake
40 lines
1.5 KiB
CMake
# libuc2 — UC2 decompression library
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set(LIBUC2_SOURCES src/decompress.c src/compress.c src/uc2_tables.c src/uc2_cdc.c src/uc2_merkle.c src/uc2_blockstore.c src/uc2_simhash.c src/uc2_delta.c src/uc2_rans.c src/uc2_dict.c src/uc2_preprocess.c src/uc2_lz4.c src/uc2_blake3.c)
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# Embed super.bin: use .S with .incbin on GCC/Clang, generated C array on MSVC
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if(MSVC)
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set(SUPER_C "${CMAKE_CURRENT_BINARY_DIR}/super_data.c")
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add_custom_command(
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OUTPUT "${SUPER_C}"
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COMMAND "${CMAKE_COMMAND}"
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-DINPUT="${CMAKE_CURRENT_SOURCE_DIR}/src/super.bin"
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-DOUTPUT="${SUPER_C}"
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-P "${PROJECT_SOURCE_DIR}/cmake/bin2c.cmake"
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DEPENDS src/super.bin "${PROJECT_SOURCE_DIR}/cmake/bin2c.cmake"
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COMMENT "Generating super_data.c from super.bin"
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)
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list(APPEND LIBUC2_SOURCES "${SUPER_C}")
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else()
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set(SUPER_BIN_ABS_PATH "${CMAKE_CURRENT_SOURCE_DIR}/src/super.bin")
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configure_file(src/super_data.S.in "${CMAKE_CURRENT_BINARY_DIR}/super_data.S" @ONLY)
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list(APPEND LIBUC2_SOURCES "${CMAKE_CURRENT_BINARY_DIR}/super_data.S")
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endif()
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add_library(uc2 STATIC ${LIBUC2_SOURCES})
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target_include_directories(uc2
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PUBLIC include
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PRIVATE src
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"${PROJECT_BINARY_DIR}/lib" # for configured uc2_version.h
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)
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target_compile_features(uc2 PUBLIC c_std_99)
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target_compile_definitions(uc2 PRIVATE NDEBUG)
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configure_file(
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include/uc2/uc2_version.h.in
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"${PROJECT_BINARY_DIR}/lib/uc2/uc2_version.h"
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@ONLY
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)
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