Fix windows build and tests + shorter intermediate cmake target name

.gitignore

@@ -0,0 +1,2 @@
+src/generator/curve_data.pyc
+src/generator/__pycache__/

CMakeLists.txt

@@ -10,13 +10,16 @@ project(DECAF VERSION 1.0 LANGUAGES C CXX)
 
 set(DECAF_SO_VERSION "0")
 
-find_package( PythonInterp 2.7 REQUIRED )
+find_package(PythonInterp 3 REQUIRED)
 
 option(ENABLE_SHARED "Build shared library." ON)
 option(ENABLE_STATIC "Build static library." ON)
 option(ENABLE_STRICT "Build with strict compile options." YES)
 option(ENABLE_TESTS  "Enable compilation of tests." OFF)
 option(GENERATED_SOURCE_PATH "Where the generated source code is stored, default in the building tree" OFF)
+if (CMAKE_SYSTEM_NAME STREQUAL "WindowsStore")
+	set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -nostdlib")
+endif()
 
 if (GENERATED_SOURCE_PATH)
 	set(GSOURCE_PATH ${GENERATED_SOURCE_PATH})
@@ -46,12 +49,12 @@ set(STRICT_OPTIONS_C )
 set(STRICT_OPTIONS_CXX )
 if(MSVC)
 	if(ENABLE_STRICT)
-		set(STRICT_OPTIONS_CPP "${STRICT_OPTIONS_CPP} /WX")
+		set(STRICT_OPTIONS_CPP "${STRICT_OPTIONS_CPP} /WX /Zc:__cplusplus")
 	endif()
 else()
-	set(STRICT_OPTIONS_CXX "${STRICT_OPTIONS_CXX} -std=c++11 -O2")
+	set(STRICT_OPTIONS_CXX "${STRICT_OPTIONS_CXX} -std=c++14 -O2")
 	set(STRICT_OPTIONS_CPP "${STRICT_OPTIONS_CPP} -Wall -Wuninitialized -Wno-deprecated-declarations -Wno-missing-field-initializers")
-	set(STRICT_OPTIONS_C "${STRICT_OPTIONS_C} -std=c99 -O2 -Wstrict-prototypes -Wno-error=strict-prototypes -fvisibility=hidden")
+	set(STRICT_OPTIONS_C "${STRICT_OPTIONS_C} -std=c99 -O2 -Wstrict-prototypes -Wno-error=strict-prototypes -fvisibility=hidden -Wno-error=implicit-function-declaration -Wno-error=attributes")
 	if(CMAKE_C_COMPILER_ID MATCHES "Clang")
 		set(STRICT_OPTIONS_CPP "${STRICT_OPTIONS_CPP} -Wno-error=unknown-warning-option -Qunused-arguments -Wno-tautological-compare")
 		set(STRICT_OPTIONS_CPP "${STRICT_OPTIONS_CPP} -Wno-unused-function -Wno-pass-failed")

src/CMakeLists.txt

@@ -36,12 +36,18 @@ set(TARGET_ARCH_DIR_P25519 arch_32)
 # availables: arch_32, arch_arm_32, arch_neon, arch_ref64, arch_x86_64
 set(TARGET_ARCH_DIR_P448 arch_32)
 
-if(${CMAKE_SYSTEM_PROCESSOR} MATCHES "x86_64") # x86_64
+
+if(MSVC)# On MSVC Windows, Processor is always AMD64 on both platforms (x86/x64)
+	set(MSVC_ARCH ${CMAKE_CXX_COMPILER_ARCHITECTURE_ID})# ${MSVC_ARCH} MATCHES "X64"
+else()
+	set(MSVC_ARCH ${CMAKE_SYSTEM_PROCESSOR})# just to have a value
+endif()
+if(${CMAKE_SYSTEM_PROCESSOR} MATCHES "x86_64" AND NOT MSVC)#Decaf doesn't support 64bits on MSVC yet
 	message("Target architecture is x86_64")
 	set(TARGET_ARCH_DIR arch_x86_64)
 	set(TARGET_ARCH_DIR_P25519 arch_x86_64)
 	set(TARGET_ARCH_DIR_P448 arch_x86_64)
-elseif(${CMAKE_SYSTEM_PROCESSOR} MATCHES "arch64") # shall be arm64 bits, stick to ref64
+elseif(${CMAKE_SYSTEM_PROCESSOR} MATCHES "arch64") # shall be arm64 bits, stick to ref64.
 	message("Target architecture is 64 bits general purpose(arm64 shall use this)")
 	set(TARGET_ARCH_DIR arch_ref64)
 	set(TARGET_ARCH_DIR_P25519 arch_ref64)

src/generator/curve25519/CMakeLists.txt

@@ -75,13 +75,13 @@ add_custom_command(
     COMMENT "Generating code for include/decaf/ed255.hxx"
 )
 
-add_custom_target(generatorCurve25519AndGenTablesCommon DEPENDS
+add_custom_target(genC25519nTab DEPENDS
 			${GSOURCE_PATH}/c/curve25519/decaf.c
 			${GSOURCE_PATH}/c/curve25519/scalar.c
 			)
 add_custom_target(generatorCurve25519 DEPENDS
 			generatorP25519
-			generatorCurve25519AndGenTablesCommon
+			genC25519nTab
        			${GSOURCE_PATH}/c/curve25519/elligator.c
        			${GSOURCE_PATH}/c/curve25519/eddsa.c
 			${GSOURCE_PATH}/include/decaf/point_255.hxx
@@ -98,7 +98,7 @@ add_executable(decaf_gen_tables_curve25519 EXCLUDE_FROM_ALL ${GSOURCE_PATH}/c/cu
 			${GSOURCE_PATH}/c/curve25519/scalar.c
 			${PROJECT_SOURCE_DIR}/src/utils.c
 			$<TARGET_OBJECTS:p25519>)
-add_dependencies(decaf_gen_tables_curve25519 generatorCurve25519AndGenTablesCommon)
+add_dependencies(decaf_gen_tables_curve25519 genC25519nTab)
 
 add_custom_target(decaf_tables_curve25519
 	COMMAND decaf_gen_tables_curve25519 > ${PROJECT_SOURCE_DIR}/src/curve25519/decaf_tables.c

src/generator/ed448goldilocks/CMakeLists.txt

@@ -82,13 +82,13 @@ add_custom_command(
     COMMENT "Generating code for include/decaf/ed448.hxx"
 )
 
-add_custom_target(generatorEd448AndGenTablesCommon DEPENDS
+add_custom_target(genEd448nTab DEPENDS
 			${GSOURCE_PATH}/c/ed448goldilocks/scalar.c
 			${GSOURCE_PATH}/c/ed448goldilocks/decaf.c
 			)
 add_custom_target(generatorEd448goldilocks DEPENDS
 			generatorP448
-			generatorEd448AndGenTablesCommon
+			genEd448nTab
        			${GSOURCE_PATH}/c/ed448goldilocks/elligator.c
        			${GSOURCE_PATH}/c/ed448goldilocks/eddsa.c
 			${GSOURCE_PATH}/include/decaf/point_448.hxx
@@ -105,7 +105,7 @@ add_executable(decaf_gen_tables_ed448goldilocks EXCLUDE_FROM_ALL ${GSOURCE_PATH}
 			${GSOURCE_PATH}/c/ed448goldilocks/scalar.c
 			${PROJECT_SOURCE_DIR}/src/utils.c
 			$<TARGET_OBJECTS:p448>)
-add_dependencies(decaf_gen_tables_ed448goldilocks generatorEd448AndGenTablesCommon)
+add_dependencies(decaf_gen_tables_ed448goldilocks genEd448nTab)
 
 add_custom_target(decaf_tables_ed448goldilocks
 	COMMAND decaf_gen_tables_ed448goldilocks > ${PROJECT_SOURCE_DIR}/src/ed448goldilocks/decaf_tables.c

src/include/word.h

@@ -151,7 +151,7 @@ DECAF_INLINE mask_t bit_to_mask(uint8_t bit) {
     br_set_to_mask(mask_t x) {
         return vdupq_n_u32(x);
     }
-#elif _WIN64 || __amd64__ || __X86_64__ || __aarch64__
+#elif __amd64__ || __X86_64__ || __aarch64__ /* || _WIN64 -> WIN64 does not support int128 so force the build on arch32 default so do not use this define for _WIN64*/
     #define VECTOR_ALIGNED __attribute__((aligned(8)))
     typedef uint64_t big_register_t, uint64xn_t;
 

src/per_curve/eddsa.tmpl.hxx

@@ -130,7 +130,7 @@ public:
             message.size(),
             0,
             context.data(),
-            context.size()
+            static_cast<uint8_t>(context.size())
         );
         return out;
     }
@@ -147,7 +147,7 @@ public:
             ((const CRTP*)this)->keypair_,
             (const decaf_ed$(gf_shortname)_prehash_ctx_s*)ph.wrapped,
             ph.context_.data(),
-            ph.context_.size()
+            static_cast<uint8_t>(ph.context_.size())
         );
         return out;
     }
@@ -266,7 +266,7 @@ public:
             message.size(),
             0,
             context.data(),
-            context.size()
+            static_cast<uint8_t>(context.size())
         );
     }
     
@@ -319,7 +319,7 @@ public:
             ((const CRTP*)this)->pub_.data(),
             (const decaf_ed$(gf_shortname)_prehash_ctx_s*)ph.wrapped,
             ph.context_.data(),
-            ph.context_.size()
+            static_cast<uint8_t>(ph.context_.size())
         )) {
             throw CryptoException();
         }

src/per_curve/point.tmpl.hxx

@@ -122,7 +122,14 @@ public:
 
     /** Assign from signed int. */
     inline Scalar& operator=(int64_t w) DECAF_NOEXCEPT {
+#ifdef _MSC_VER
+#pragma warning ( push)
+#pragma warning ( disable : 4146)
+#endif
         Scalar t(-(uint64_t)INT_MIN);
+#ifdef _MSC_VER
+#pragma warning ( pop)
+#endif
         $(c_ns)_scalar_set_unsigned(s,(uint64_t)w - (uint64_t)INT_MIN);
         *this -= t;
         return *this;

src/per_curve/scalar.tmpl.c

@@ -216,7 +216,7 @@ API_NS(scalar_eq) (
 static DECAF_INLINE void scalar_decode_short (
     scalar_t s,
     const unsigned char *ser,
-    unsigned int nbytes
+    size_t nbytes
 ) {
     unsigned int i,j,k=0;
     for (i=0; i<SCALAR_LIMBS; i++) {

src/public_include/decaf/secure_buffer.hxx

@@ -178,16 +178,22 @@ public:
     
     /** Block from std::string */
     inline Block(const std::string &s) : data_(
-    #if __cplusplus >= 201103L
-        ((unsigned char *)&(s)[0])
-    #else
+#if __cplusplus >= 201103L
         ((unsigned char *)(s.data()))
-    #endif
-    ), size_(s.size()), zero_on_destroy_(false) {}
+#else
+        ((unsigned char *)&(s)[0])
+#endif
+        ), size_(s.size()), zero_on_destroy_(false) {}
     
     /** Block from std::vector */
     template<class alloc> inline Block(const std::vector<unsigned char,alloc> &s)
-        : data_(((unsigned char *)&(s)[0])), size_(s.size()), zero_on_destroy_(false) {}
+        : data_(
+#if __cplusplus >= 201103L
+        ((unsigned char *)(s.data()))
+#else
+        ((unsigned char *)&(s)[0])
+#endif
+	    ), size_(s.size()), zero_on_destroy_(false) {}
 
     /** Get const data */
     inline const unsigned char *data() const DECAF_NOEXCEPT { return data_; }
@@ -405,7 +411,11 @@ protected:
     inline void clear() DECAF_NOEXCEPT {
         if (is_mine) {
             really_bzero(ours.mine, T::size());
+#ifdef _MSC_VER
+            _aligned_free(ours.mine);
+#else
             free(ours.mine);
+#endif // _MSC_VER
             ours.yours = T::default_value();
             is_mine = false;
         }
@@ -482,6 +492,11 @@ template<typename T, size_t alignment>
 void SanitizingAllocator<T,alignment>::deallocate(T* p, size_t size) DECAF_NOEXCEPT {
     if (p==NULL) return;
     really_bzero(reinterpret_cast<void*>(p), size);
+#ifdef _MSC_VER
+    if (alignment)
+        _aligned_free(reinterpret_cast<void*>(p));
+    else
+#endif // _MSC_VER
     free(reinterpret_cast<void*>(p));
 }
 

src/spongerng.c

@@ -9,6 +9,18 @@
  * @warning The SpongeRNG code isn't stable.  Future versions are likely to
  * have different outputs.  Of course, this only matters in deterministic mode.
  */
+#if defined(_MSC_VER)
+#define _CRT_RAND_S
+#include <stdlib.h>
+#   include <io.h>
+#include <BaseTsd.h>
+#define open _open
+#define read _read
+#define close _close
+typedef SSIZE_T ssize_t;
+#else
+#   include <unistd.h>
+#endif
 
 #define __STDC_WANT_LIB_EXT1__ 1 /* for memset_s */
 #include <assert.h>
@@ -22,16 +34,7 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
-#if defined(_MSC_VER)
-#   include <io.h>
-#include <BaseTsd.h>
-#define open _open
-#define read _read
-#define close _close
-typedef SSIZE_T ssize_t;
-#else
-#   include <unistd.h>
-#endif
+
 
 /** Get entropy from a CPU, preferably in the form of RDRAND, but possibly instead from RDTSC. */
 static void get_cpu_entropy(uint8_t *entropy, size_t len) {
@@ -161,12 +164,35 @@ decaf_error_t decaf_spongerng_init_from_file (
     prng->sponge->params->remaining = !deterministic; /* A bit of a hack; this param is ignored for SHAKE */
     if (!len) return DECAF_FAILURE;
 
+#if defined _MSC_VER
+    /* no /dev/urandom on windows, use rand_s instead */
+    if (strcmp(file, "/dev/urandom") == 0) {
+        unsigned int r;
+        uint8_t buffer[sizeof(unsigned int)];
+        errno_t err;
+        while (len) {
+            int i;
+            err = rand_s(&r);
+            if (err != 0) {
+                return DECAF_FAILURE;
+            }
+            for (i = 0; i < sizeof(unsigned int); i++) {
+                buffer[i] = (uint8_t)(r & 0xff);
+                r >>= 8;
+            }
+            size_t consumed = (len > sizeof(buffer)) ? sizeof(buffer) : len;
+            decaf_sha3_update(prng->sponge, buffer, consumed);
+            len -= consumed;
+	}
+    } else {
+#endif /* _MSC_VER */
+
     int fd = open(file, O_RDONLY);
     if (fd < 0) return DECAF_FAILURE;
     
     uint8_t buffer[128];
     while (len) {
-        ssize_t red = read(fd, buffer, (len > sizeof(buffer)) ? sizeof(buffer) : len);
+        ssize_t red = read(fd, buffer, (len > sizeof(buffer)) ? sizeof(buffer) : (unsigned int)len);
         if (red <= 0) {
             close(fd);
             return DECAF_FAILURE;
@@ -175,6 +201,9 @@ decaf_error_t decaf_spongerng_init_from_file (
         len -= red;
     };
     close(fd);
+#if defined _MSC_VER
+    }
+#endif /* _MSC_VER */
     const uint8_t nope;
     decaf_spongerng_stir(prng,&nope,0);
     

test/bench_decaf.cxx

@@ -102,7 +102,7 @@ public:
         if (strlen(s) < 25) printf("%*s",int(25-strlen(s)),"");
         fflush(stdout);
         i = j = 0;
-        ntests = NTESTS * factor;
+        ntests = static_cast<int>(NTESTS * factor);
         nsamples = NSAMPLES;
         begin = now();
         tsc_begin = rdtsc();

test/shakesum.c

@@ -13,6 +13,7 @@
 #include <io.h>
 #include <BaseTsd.h>
 typedef SSIZE_T ssize_t;
+#define read _read
 #else
 #include <unistd.h>
 #endif

test/test_decaf.cxx

@@ -72,8 +72,8 @@ static void print(const char *name, const Scalar &x) {
 
 static void hexprint(const char *name, const SecureBuffer &buffer) {
     printf("  %s = 0x", name);
-    for (int i=buffer.size()-1; i>=0; i--) {
-        printf("%02x", buffer[i]);
+    for (auto i = buffer.rbegin(); i!= buffer.rend(); ++i) {
+        printf("%02x", *i);
     }
     printf("\n");
 }