tweetnacl integration

.gitignore

@@ -123,3 +123,4 @@ foreign/openpgm/*
 zeromq-*.tar.gz
 zeromq-*.zip
 core
+build

CMakeLists.txt

@@ -9,6 +9,25 @@ if(APPLE)
   option(ZMQ_BUILD_FRAMEWORK "Build as OS X framework" ON)
 endif()
 
+option(WITH_TWEETNACL "Build with tweetnacl" ON)
+
+if(WITH_TWEETNACL)
+  add_definitions(-DHAVE_TWEETNACL -DHAVE_LIBSODIUM)
+  include_directories(
+	tweetnacl/contrib/randombytes
+	tweetnacl/src
+	)
+
+  set(TWEETNACL_SOURCES
+	tweetnacl/src/tweetnacl.c 
+	)
+  if(WIN32)
+  else()
+	list(APPEND TWEETNACL_SOURCES tweetnacl/contrib/randombytes/devurandom.c)
+  endif()
+endif()
+
+
 
 set(POLLER "" CACHE STRING "Choose polling system. valid values are
                             kqueue, epoll, devpoll, poll or select [default=autodetect]")
@@ -469,6 +488,10 @@ foreach(source ${cxx-sources})
   list(APPEND sources ${CMAKE_CURRENT_SOURCE_DIR}/src/${source})
 endforeach()
 
+foreach(source ${TWEETNACL_SOURCES})
+  list(APPEND sources ${CMAKE_CURRENT_SOURCE_DIR}/${source})
+endforeach()
+
 foreach(source ${rc-sources})
   list(APPEND sources ${CMAKE_CURRENT_BINARY_DIR}/${source})
   configure_file(${CMAKE_CURRENT_SOURCE_DIR}/src/${source}.in ${CMAKE_CURRENT_BINARY_DIR}/${source})
@@ -701,7 +724,7 @@ if(ZMQ_BUILD_TESTS)
     target_link_libraries(${test} libzmq)
 
     if(RT_LIBRARY)
-      target_link_libraries(${test} ${RT_LIBRARY})
+      target_link_libraries(${test} ${RT_LIBRARY} )
     endif()
     if(WIN32)
       add_test(NAME ${test} WORKING_DIRECTORY ${LIBRARY_OUTPUT_PATH} COMMAND ${test})

src/curve_client.cpp

@@ -21,8 +21,6 @@
 
 #ifdef HAVE_LIBSODIUM
 
-#include <sodium.h>
-
 #ifdef ZMQ_HAVE_WINDOWS
 #include "windows.hpp"
 #endif

src/curve_client.hpp

@@ -23,7 +23,12 @@
 #include "platform.hpp"
 
 #ifdef HAVE_LIBSODIUM
-#include <sodium.h>
+#ifdef HAVE_TWEETNACL
+#include "tweetnacl_base.h"
+#include "randombytes.h"
+#else
+#include "sodium.h"
+#endif
 
 #if crypto_box_NONCEBYTES != 24 \
 ||  crypto_box_PUBLICKEYBYTES != 32 \

src/curve_server.cpp

@@ -20,7 +20,6 @@
 #include "platform.hpp"
 
 #ifdef HAVE_LIBSODIUM
-#include <sodium.h>
 
 #ifdef ZMQ_HAVE_WINDOWS
 #include "windows.hpp"

src/curve_server.hpp

@@ -23,8 +23,12 @@
 #include "platform.hpp"
 
 #ifdef HAVE_LIBSODIUM
-#include <sodium.h>
-
+#ifdef HAVE_TWEETNACL
+#include "tweetnacl_base.h"
+#include "randombytes.h"
+#else
+#include "sodium.h"
+#endif
 #if crypto_box_NONCEBYTES != 24 \
 ||  crypto_box_PUBLICKEYBYTES != 32 \
 ||  crypto_box_SECRETKEYBYTES != 32 \
@@ -118,4 +122,3 @@ namespace zmq
 #endif
 
 #endif
-

src/zmq_utils.cpp

@@ -30,8 +30,13 @@
 #else
 #include "windows.hpp"
 #endif
+
 #ifdef HAVE_LIBSODIUM
-#   include <sodium.h>
+#ifdef HAVE_TWEETNACL
+#include "tweetnacl_base.h"
+#else
+#include "sodium.h"
+#endif
 #endif
 
 

tweetnacl/contrib/randombytes/devurandom.c

+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+/* it's really stupid that there isn't a syscall for this */
+
+static int fd = -1;
+
+void randombytes(unsigned char *x,unsigned long long xlen)
+{
+  int i;
+
+  if (fd == -1) {
+    for (;;) {
+      fd = open("/dev/urandom",O_RDONLY);
+      if (fd != -1) break;
+      sleep(1);
+    }
+  }
+
+  while (xlen > 0) {
+    if (xlen < 1048576) i = xlen; else i = 1048576;
+
+    i = read(fd,x,i);
+    if (i < 1) {
+      sleep(1);
+      continue;
+    }
+
+    x += i;
+    xlen -= i;
+  }
+}

tweetnacl/contrib/randombytes/devurandom.h

+/*
+randombytes/devurandom.h version 20080713
+D. J. Bernstein
+Public domain.
+*/
+
+#ifndef randombytes_devurandom_H
+#define randombytes_devurandom_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern void randombytes(unsigned char *,unsigned long long);
+
+#ifdef __cplusplus
+}
+#endif
+
+#ifndef randombytes_implementation
+#define randombytes_implementation "devurandom"
+#endif
+
+#endif

tweetnacl/contrib/randombytes/randombytes.h

+
+#ifndef randombytes_H
+#define randombytes_H
+#include "devurandom.h"
+#endif

tweetnacl/src/tweetnacl_base.h

+#ifndef TWEETNACL_BASE_H
+#define TWEETNACL_BASE_H
+
+/* the original file seems to be a compability layer for NaCL */
+
+/* This here is for direct tweetnacl usage */ 
+
+#define crypto_box_SECRETKEYBYTES 32
+#define crypto_box_BOXZEROBYTES 16
+#define crypto_box_NONCEBYTES 24
+#define crypto_box_ZEROBYTES 32
+#define crypto_box_PUBLICKEYBYTES 32
+#define crypto_box_BEFORENMBYTES 32
+#define crypto_secretbox_KEYBYTES 32
+#define crypto_secretbox_NONCEBYTES 24
+#define crypto_secretbox_ZEROBYTES 32
+#define crypto_secretbox_BOXZEROBYTES 16
+typedef unsigned char u8;
+typedef unsigned long u32;
+typedef unsigned long long u64;
+typedef long long i64;
+typedef i64 gf[16];
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+int crypto_box_keypair(u8 *y,u8 *x);
+int crypto_box_afternm(u8 *c,const u8 *m,u64 d,const u8 *n,const u8 *k);
+
+
+int crypto_box_open_afternm(u8 *m,const u8 *c,u64 d,const u8 *n,const u8 *k);
+int crypto_box(u8 *c,const u8 *m,u64 d,const u8 *n,const u8 *y,const u8 *x);
+int crypto_box_open(u8 *m,const u8 *c,u64 d,const u8 *n,const u8 *y,const u8 *x);
+int crypto_box_beforenm(u8 *k,const u8 *y,const u8 *x);
+int crypto_secretbox(u8 *c,const u8 *m,u64 d,const u8 *n,const u8 *k);
+int crypto_secretbox_open(u8 *m,const u8 *c,u64 d,const u8 *n,const u8 *k);
+#ifdef __cplusplus
+}
+#endif
+
+#endif