x25519 unti test

tests/Makefile

@@ -1,6 +1,6 @@
 CXXFLAGS += -Wall -Wextra -pedantic -O0 -g -std=c++11 -D_GLIBCXX_USE_NANOSLEEP=1 -I../libi2pd/ -pthread
 
-TESTS = test-gost test-gost-sig test-base-64
+TESTS = test-gost test-gost-sig test-base-64 test-x25519
 
 all: $(TESTS) run
 
@@ -13,7 +13,10 @@ test-base-%: ../libi2pd/Base.cpp test-base-%.cpp
 test-gost: ../libi2pd/Gost.cpp ../libi2pd/I2PEndian.cpp test-gost.cpp
 	$(CXX) $(CXXFLAGS) $(NEEDED_CXXFLAGS) $(INCFLAGS) -o $@ $^ -lcrypto
 
-test-gost-sig: ../libi2pd/Gost.cpp ../libi2pd/I2PEndian.cpp ../libi2pd/Signature.cpp ../libi2pd/Crypto.cpp ../libi2pd/Log.cpp test-gost-sig.cpp
+test-gost-sig: ../libi2pd/Gost.cpp ../libi2pd/I2PEndian.cpp ../libi2pd/Crypto.cpp ../libi2pd/CPU.cpp ../libi2pd/Log.cpp test-gost-sig.cpp
+	$(CXX) $(CXXFLAGS) $(NEEDED_CXXFLAGS) $(INCFLAGS) -o $@ $^ -lcrypto -lssl -lboost_system
+
+test-x25519: ../libi2pd/Ed25519.cpp ../libi2pd/I2PEndian.cpp ../libi2pd/Log.cpp ../libi2pd/Crypto.cpp ../libi2pd/CPU.cpp test-x25519.cpp
 	$(CXX) $(CXXFLAGS) $(NEEDED_CXXFLAGS) $(INCFLAGS) -o $@ $^ -lcrypto -lssl -lboost_system
 
 run: $(TESTS)

tests/test-x25519.cpp

@@ -0,0 +1,36 @@
+#include <cassert>
+#include <inttypes.h>
+#include <string.h>
+
+#include "Ed25519.h"
+
+const uint8_t k[32] = 
+{
+    0xa5, 0x46, 0xe3, 0x6b, 0xf0, 0x52, 0x7c, 0x9d, 0x3b, 0x16, 0x15,
+    0x4b, 0x82, 0x46, 0x5e, 0xdd, 0x62, 0x14, 0x4c, 0x0a, 0xc1, 0xfc,
+    0x5a, 0x18, 0x50, 0x6a, 0x22, 0x44, 0xba, 0x44, 0x9a, 0xc4
+};
+
+const uint8_t u[32] = 
+{
+    0xe6, 0xdb, 0x68, 0x67, 0x58, 0x30, 0x30, 0xdb, 0x35, 0x94, 0xc1,
+    0xa4, 0x24, 0xb1, 0x5f, 0x7c, 0x72, 0x66, 0x24, 0xec, 0x26, 0xb3,
+    0x35, 0x3b, 0x10, 0xa9, 0x03, 0xa6, 0xd0, 0xab, 0x1c, 0x4c
+};
+
+uint8_t p[32] = 
+{
+    0xc3, 0xda, 0x55, 0x37, 0x9d, 0xe9, 0xc6, 0x90, 0x8e, 0x94, 0xea,
+    0x4d, 0xf2, 0x8d, 0x08, 0x4f, 0x32, 0xec, 0xcf, 0x03, 0x49, 0x1c,
+    0x71, 0xf7, 0x54, 0xb4, 0x07, 0x55, 0x77, 0xa2, 0x85, 0x52
+};
+
+int main ()
+{
+    uint8_t buf[32];
+    BN_CTX * ctx = BN_CTX_new ();
+    i2p::crypto::GetEd25519 ()->ScalarMul (u, k, buf, ctx);
+    BN_CTX_free (ctx);
+    assert(memcmp (buf, p, 32) == 0);
+}
+