Added a CMake system to easily add and choose crypto implementations.

4 files changed, 65 insertions, 0 deletions

diff --git a/libcmix-crypto/curve25519/CMakeLists.txt b/libcmix-crypto/curve25519/CMakeLists.txt
new file mode 100644
index 0000000..7885e7d
--- /dev/null
+++ b/libcmix-crypto/curve25519/CMakeLists.txt
@@ -0,0 +1,22 @@
+
+add_library(curve25519-interface INTERFACE)
+
+target_include_directories(curve25519-interface
+	INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}
+)
+
+target_link_libraries(curve25519-interface
+	INTERFACE cmix-crypto-interface
+)
+
+foreach(impl ${curve25519_implementations})
+	add_subdirectory(${impl})
+endforeach()
+
+add_library(curve25519-implementation INTERFACE)
+
+target_link_libraries(curve25519-implementation
+	INTERFACE curve25519-${curve25519_implementation}
+)
+
+
diff --git a/libcmix-crypto/curve25519/curve25519.h b/libcmix-crypto/curve25519/curve25519.h
new file mode 100644
index 0000000..319e693
--- /dev/null
+++ b/libcmix-crypto/curve25519/curve25519.h
@@ -0,0 +1,15 @@
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "keypair.h"
+
+#include <stdlib.h>
+
+extern struct KeyPair curve25519_create_keypair();
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/libcmix-crypto/curve25519/sodium/CMakeLists.txt b/libcmix-crypto/curve25519/sodium/CMakeLists.txt
new file mode 100644
index 0000000..9fbf010
--- /dev/null
+++ b/libcmix-crypto/curve25519/sodium/CMakeLists.txt
@@ -0,0 +1,15 @@
+include(get_target_name)
+
+get_target_name(target_name)
+
+add_library(${target_name}
+	libsodium_curve25519.c
+)
+
+target_compile_options(${target_name}
+	PRIVATE -std=c99
+)
+
+target_link_libraries(${target_name}
+	PUBLIC curve25519-interface
+)
diff --git a/libcmix-crypto/curve25519/sodium/libsodium_curve25519.c b/libcmix-crypto/curve25519/sodium/libsodium_curve25519.c
new file mode 100644
index 0000000..23dbf12
--- /dev/null
+++ b/libcmix-crypto/curve25519/sodium/libsodium_curve25519.c
@@ -0,0 +1,13 @@
+
+#include "curve25519.h"
+
+#include <stddef.h>
+
+void sodium_curve25519_keypair_deleter(struct KeyPair* p) {
+	free(p->sec);
+	free(p->pub);
+}
+
+struct KeyPair curve25519_create_keypair() {
+	return (struct KeyPair){NULL, NULL, 0, 0, &sodium_curve25519_keypair_deleter};
+}