Add Protocol::SignedMessage struct (not done)

2026-08-04 21:27:06 +03:00
parent 09ae813c76
commit 11d207d58f
6 changed files with 103 additions and 3 deletions
@@ -1,6 +1,32 @@
+#include "sodium/crypto_sign.h"
 #include <catch2/catch_test_macros.hpp>
 #include <protocol/protocol.hxx>
+#include <sodium.h>

-TEST_CASE("something", "[stun]") {
-      SECTION("true") { REQUIRE(true); }
+TEST_CASE("SignedMessage", "[protocol]") {
+      SECTION("sodium init") REQUIRE(sodium_init() >= 0);
+
+      unsigned char pub_key[crypto_sign_PUBLICKEYBYTES];
+      unsigned char priv_key[crypto_sign_SECRETKEYBYTES];
+      crypto_sign_keypair(pub_key, priv_key);
+
+      auto msg = Protocol::SignedMessage(pub_key, priv_key, "Hello, world!");
+      std::vector<uint8_t> toBeSigned;
+      toBeSigned.reserve(sizeof(msg.sender_key_fingerprint) +
+                         msg.plaintext.size() + sizeof(msg.timestamp));
+
+      toBeSigned.insert(toBeSigned.cend(), msg.sender_key_fingerprint,
+                        msg.sender_key_fingerprint +
+                            sizeof(msg.sender_key_fingerprint));
+      toBeSigned.insert(toBeSigned.cend(), msg.plaintext.data(),
+                        msg.plaintext.data() + msg.plaintext.length());
+      auto timestamp_bytes = reinterpret_cast<const uint8_t *>(&msg.timestamp);
+      toBeSigned.insert(toBeSigned.cend(), timestamp_bytes,
+                        timestamp_bytes + sizeof(msg.timestamp));
+
+      SECTION("signed message") {
+            REQUIRE(crypto_sign_verify_detached(
+                        msg.sender_key_signature, toBeSigned.data(),
+                        toBeSigned.size(), pub_key) == 0);
+      }
 }