Merge pull request #2005 from sipsorcery/port_secp256k1

Port for secp256k1 crypto library

4 files changed, 86 insertions, 0 deletions

diff --git a/ports/secp256k1/CMakeLists.txt b/ports/secp256k1/CMakeLists.txt
new file mode 100644
index 000000000..d439053bc
--- /dev/null
+++ b/ports/secp256k1/CMakeLists.txt
@@ -0,0 +1,26 @@
+cmake_minimum_required(VERSION 3.8)
+project(secp256k1 C)
+
+option(INSTALL_HEADERS "Install header files" ON)
+
+add_definitions(
+    -DENABLE_MODULE_ECDH
+    -DENABLE_MODULE_RECOVERY
+    -DHAVE_CONFIG_H
+)
+
+file(GLOB SOURCES src/secp256k1.c)
+add_library(secp256k1 ${SOURCES})
+
+include_directories(${CMAKE_CURRENT_SOURCE_DIR})
+
+install(TARGETS secp256k1
+    RUNTIME DESTINATION bin
+    ARCHIVE DESTINATION lib
+    LIBRARY DESTINATION lib
+)
+
+if(INSTALL_HEADERS)
+    file(GLOB HEADERS include/secp256k1.h)
+    install(FILES ${HEADERS} DESTINATION include)
+endif()
\ No newline at end of file
diff --git a/ports/secp256k1/CONTROL b/ports/secp256k1/CONTROL
new file mode 100644
index 000000000..181a4a7e6
--- /dev/null
+++ b/ports/secp256k1/CONTROL
@@ -0,0 +1,3 @@
+Source: secp256k1
+Version: 2017-19-10-0b7024185045a49a1a6a4c5615bf31c94f63d9c4
+Description: Optimized C library for EC operations on curve
diff --git a/ports/secp256k1/libsecp256k1-config.h b/ports/secp256k1/libsecp256k1-config.h
new file mode 100644
index 000000000..693d3ed25
--- /dev/null
+++ b/ports/secp256k1/libsecp256k1-config.h
@@ -0,0 +1,29 @@
+/**********************************************************************
+ * Copyright (c) 2013, 2014 Pieter Wuille                             *
+ * Distributed under the MIT software license, see the accompanying   *
+ * file COPYING or http://www.opensource.org/licenses/mit-license.php.*
+ **********************************************************************/
+
+#ifndef SECP256K1_BASIC_CONFIG_H
+#define SECP256K1_BASIC_CONFIG_H
+
+#undef USE_ASM_X86_64
+#undef USE_ENDOMORPHISM
+#undef USE_FIELD_10X26
+#undef USE_FIELD_5X52
+#undef USE_FIELD_INV_BUILTIN
+#undef USE_FIELD_INV_NUM
+#undef USE_NUM_GMP
+#undef USE_NUM_NONE
+#undef USE_SCALAR_4X64
+#undef USE_SCALAR_8X32
+#undef USE_SCALAR_INV_BUILTIN
+#undef USE_SCALAR_INV_NUM
+
+#define USE_NUM_NONE 1
+#define USE_FIELD_INV_BUILTIN 1
+#define USE_SCALAR_INV_BUILTIN 1
+#define USE_FIELD_10X26 1
+#define USE_SCALAR_8X32 1
+
+#endif /* SECP256K1_BASIC_CONFIG_H */
diff --git a/ports/secp256k1/portfile.cmake b/ports/secp256k1/portfile.cmake
new file mode 100644
index 000000000..2012c4827
--- /dev/null
+++ b/ports/secp256k1/portfile.cmake
@@ -0,0 +1,28 @@
+include(vcpkg_common_functions)
+
+if (VCPKG_LIBRARY_LINKAGE STREQUAL dynamic)
+    message(STATUS "Warning: Dynamic building not supported yet. Building static.")
+    set(VCPKG_LIBRARY_LINKAGE static)
+endif()
+
+vcpkg_from_github(
+    OUT_SOURCE_PATH SOURCE_PATH
+    REPO "bitcoin-core/secp256k1"
+    REF "0b7024185045a49a1a6a4c5615bf31c94f63d9c4"
+    SHA512 54e0c446ae63105800dfaf23dc934734f196c91f275db0455e58a36926c29ecc51a13d9b1eb2e45bc86199120c3c472ec7b39086787a49ce388a4df462a870bc
+)
+
+file(COPY ${CURRENT_PORT_DIR}/libsecp256k1-config.h DESTINATION ${SOURCE_PATH})
+file(COPY ${CMAKE_CURRENT_LIST_DIR}/CMakeLists.txt DESTINATION ${SOURCE_PATH})
+
+vcpkg_configure_cmake(
+    SOURCE_PATH ${SOURCE_PATH}
+    PREFER_NINJA
+    OPTIONS_DEBUG
+        -DINSTALL_HEADERS=OFF
+)
+
+vcpkg_install_cmake()
+
+# Handle copyright
+file(INSTALL ${SOURCE_PATH}/COPYING DESTINATION ${CURRENT_PACKAGES_DIR}/share/secp256k1 RENAME copyright)