Implement bright_ambassador

lib/CMakeLists.txt

@@ -6,7 +6,8 @@ set(HEADER_FILES
 		include/chiaki/base64.h
 		include/chiaki/http.h
 		include/chiaki/log.h
-		include/chiaki/ctrl.h)
+		include/chiaki/ctrl.h
+		include/chiaki/rpcrypt.h)
 
 set(SOURCE_FILES
 		src/common.c
@@ -15,7 +16,9 @@ set(SOURCE_FILES
 		src/base64.c
 		src/http.c
 		src/log.c
-		src/ctrl.c)
+		src/ctrl.c
+		src/rpcrypt.c)
+
 
 add_library(chiaki-lib ${HEADER_FILES} ${SOURCE_FILES})
 set_target_properties(chiaki-lib PROPERTIES OUTPUT_NAME chiaki)
@@ -24,3 +27,6 @@ target_include_directories(chiaki-lib PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/includ
 
 find_package(Threads)
 target_link_libraries(chiaki-lib Threads::Threads)
+
+find_package(OpenSSL REQUIRED)
+target_link_libraries(chiaki-lib OpenSSL::Crypto)

lib/include/chiaki/rpcrypt.h

@@ -0,0 +1,42 @@
+/*
+ * This file is part of Chiaki.
+ *
+ * Chiaki is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Chiaki is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Chiaki.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef CHIAKI_RPCRYPT_H
+#define CHIAKI_RPCRYPT_H
+
+#include "common.h"
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define CHIAKI_KEY_BYTES 0x10
+
+typedef struct chiaki_rpcrypt_t
+{
+
+} ChiakiRPCrypt;
+
+CHIAKI_EXPORT void chiaki_rpcrypt_bright_ambassador(uint8_t *bright, uint8_t *ambassador, const uint8_t *nonce, const uint8_t *morning);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // CHIAKI_RPCRYPT_H

lib/include/chiaki/session.h

@@ -22,6 +22,7 @@
 #include "thread.h"
 #include "log.h"
 #include "ctrl.h"
+#include "rpcrypt.h"
 
 #include <stdint.h>
 #include <netdb.h>
@@ -70,7 +71,6 @@ typedef struct chiaki_event_t
 typedef void (*ChiakiEventCallback)(ChiakiEvent *event, void *user);
 
 
-#define CHIAKI_KEY_BYTES 0x10
 
 typedef struct chiaki_session_t
 {

lib/src/rpcrypt.c

@@ -0,0 +1,45 @@
+/*
+ * This file is part of Chiaki.
+ *
+ * Chiaki is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Chiaki is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Chiaki.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <chiaki/rpcrypt.h>
+
+
+
+CHIAKI_EXPORT void chiaki_rpcrypt_bright_ambassador(uint8_t *bright, uint8_t *ambassador, const uint8_t *nonce, const uint8_t *morning)
+{
+	static const uint8_t echo_a[] = { 0x01, 0x49, 0x87, 0x9b, 0x65, 0x39, 0x8b, 0x39, 0x4b, 0x3a, 0x8d, 0x48, 0xc3, 0x0a, 0xef, 0x51 };
+	static const uint8_t echo_b[] = { 0xe1, 0xec, 0x9c, 0x3a, 0xdd, 0xbd, 0x08, 0x85, 0xfc, 0x0e, 0x1d, 0x78, 0x90, 0x32, 0xc0, 0x04 };
+
+	for(uint8_t i=0; i<CHIAKI_KEY_BYTES; i++)
+	{
+		uint8_t v = nonce[i];
+		v -= i;
+		v -= 0x27;
+		v ^= echo_a[i];
+		ambassador[i] = v;
+	}
+
+	for(uint8_t i=0; i<CHIAKI_KEY_BYTES; i++)
+	{
+		uint8_t v = morning[i];
+		v -= i;
+		v += 0x34;
+		v ^= echo_b[i];
+		v ^= nonce[i];
+		bright[i] = v;
+	}
+}

test/CMakeLists.txt

@@ -4,7 +4,8 @@ target_include_directories(munit PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/munit")
 
 add_executable(chiaki-unit
 		main.c
-		http.c)
+		http.c
+		rpcrypt.c)
 
 target_link_libraries(chiaki-unit chiaki-lib munit)
 

test/main.c

@@ -18,6 +18,7 @@
 #include <munit.h>
 
 extern MunitTest tests_http[];
+extern MunitTest tests_rpcrypt[];
 
 static MunitSuite suites[] = {
 	{
@@ -27,6 +28,13 @@ static MunitSuite suites[] = {
 		1,
 		MUNIT_SUITE_OPTION_NONE
 	},
+	{
+		"/rpcrypt",
+		tests_rpcrypt,
+		NULL,
+		1,
+		MUNIT_SUITE_OPTION_NONE
+	},
 	{ NULL, NULL, NULL, 0, MUNIT_SUITE_OPTION_NONE }
 };
 

test/rpcrypt.c

@@ -0,0 +1,49 @@
+/*
+ * This file is part of Chiaki.
+ *
+ * Chiaki is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Chiaki is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Chiaki.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <munit.h>
+
+#include <chiaki/rpcrypt.h>
+
+static MunitResult test_bright_ambassador(const MunitParameter params[], void *user)
+{
+	static const uint8_t nonce[] = { 0x43, 0x9, 0x67, 0xae, 0x36, 0x4b, 0x1c, 0x45, 0x26, 0x62, 0x37, 0x7a, 0xbf, 0x3f, 0xe9, 0x39 };
+	static const uint8_t morning[] = { 0xd2, 0x78, 0x9f, 0x51, 0x85, 0xa7, 0x99, 0xa2, 0x44, 0x52, 0x77, 0x9c, 0x2b, 0x83, 0xcf, 0x7 };
+	static const uint8_t bright_expected[] = { 0xa4, 0x4e, 0x2a, 0x16, 0x5e, 0x20, 0xd3, 0xf, 0xaa, 0x11, 0x8b, 0xc7, 0x7c, 0xa7, 0xdc, 0x11 };
+	static const uint8_t ambassador_expected[] = { 0x1d, 0xa8, 0xb9, 0x1f, 0x6e, 0x26, 0x64, 0x2e, 0xbc, 0x8, 0x8b, 0x0, 0x4f, 0x1, 0x5b, 0x52 };
+
+	uint8_t bright[CHIAKI_KEY_BYTES];
+	uint8_t ambassador[CHIAKI_KEY_BYTES];
+	chiaki_rpcrypt_bright_ambassador(bright, ambassador, nonce, morning);
+
+	munit_assert_memory_equal(CHIAKI_KEY_BYTES, bright, bright_expected);
+	munit_assert_memory_equal(CHIAKI_KEY_BYTES, ambassador, ambassador_expected);
+
+	return MUNIT_OK;
+}
+
+MunitTest tests_rpcrypt[] = {
+	{
+		"/bright_ambassador",
+		test_bright_ambassador,
+		NULL,
+		NULL,
+		MUNIT_TEST_OPTION_NONE,
+		NULL
+	},
+	{ NULL, NULL, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL }
+};