diff --git a/CMakeLists.txt b/CMakeLists.txt index 6b5c73c..77ca1f5 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -23,6 +23,8 @@ set(PACKAGE_RELEASE_VERSION 1) include(GNUInstallDirs) include(CheckIPOSupported) include(CMakePackageConfigHelpers) +include(CMakePushCheckState) +include(CheckSymbolExists) # default is "No tests" option(BUILD_TESTING "" OFF) include(CTest) @@ -119,6 +121,18 @@ target_link_options(${PROJECT_NAME} BEFORE PRIVATE ${LTM_LD_FLAGS} ) +if(MSVC) + cmake_push_check_state() + set(CMAKE_REQUIRED_LIBRARIES bcrypt) + check_symbol_exists(BCryptGenRandom "windows.h;bcrypt.h" BCRYPT_AVAILABLE) + cmake_pop_check_state() + if(BCRYPT_AVAILABLE) + target_compile_definitions(${PROJECT_NAME} PRIVATE LTM_WIN32_BCRYPT) + target_link_libraries(${PROJECT_NAME} PRIVATE bcrypt) + string(APPEND PC_LIBS_PRIVATE -lbcrypt) + endif() +endif() + set(PUBLIC_HEADERS tommath.h) set(C89 False CACHE BOOL "(Usually maintained automatically) Enable when the library is in c89 mode to package the correct header files on install") if(C89) diff --git a/bn_s_mp_rand_platform.c b/bn_s_mp_rand_platform.c index 27339bf..097f7be 100644 --- a/bn_s_mp_rand_platform.c +++ b/bn_s_mp_rand_platform.c @@ -29,6 +29,17 @@ static mp_err s_read_arc4random(void *p, size_t n) #define WIN32_LEAN_AND_MEAN #include + +#ifdef LTM_WIN32_BCRYPT +#include +#pragma comment(lib, "bcrypt") + +static mp_err s_read_wincsp(void *p, size_t n) +{ + return BCRYPT_SUCCESS(BCryptGenRandom(NULL, (PUCHAR)p, (ULONG)n, + BCRYPT_USE_SYSTEM_PREFERRED_RNG)) ? MP_OKAY : MP_ERR; +} +#else #include static mp_err s_read_wincsp(void *p, size_t n) @@ -46,6 +57,7 @@ static mp_err s_read_wincsp(void *p, size_t n) } return CryptGenRandom(hProv, (DWORD)n, (BYTE *)p) == TRUE ? MP_OKAY : MP_ERR; } +#endif #endif /* WIN32 */ #if !defined(BN_S_READ_WINCSP_C) && defined(__linux__) && defined(__GLIBC_PREREQ) diff --git a/libtommath.pc.in b/libtommath.pc.in index 7ce50fd..4b8e5fa 100644 --- a/libtommath.pc.in +++ b/libtommath.pc.in @@ -6,4 +6,5 @@ Name: LibTomMath Description: public domain library for manipulating large integer numbers Version: @PROJECT_VERSION@ Libs: -L${libdir} -ltommath +Libs.private: @PC_LIBS_PRIVATE@ Cflags: -I${includedir}