diff --git a/CMakeLists.txt b/CMakeLists.txt
index 735f2b8..1153693 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,6 +6,9 @@ add_library(solanaceae_toxcore
 	./solanaceae/toxcore/utils.hpp
 	./solanaceae/toxcore/utils.cpp
 
+	./solanaceae/toxcore/tox_key.hpp
+	./solanaceae/toxcore/tox_key.cpp
+
 	./solanaceae/toxcore/tox_interface.hpp
 	./solanaceae/toxcore/tox_interface.cpp
 	./solanaceae/toxcore/tox_event_interface.hpp
diff --git a/solanaceae/toxcore/tox_key.cpp b/solanaceae/toxcore/tox_key.cpp
new file mode 100644
index 0000000..f2159ad
--- /dev/null
+++ b/solanaceae/toxcore/tox_key.cpp
@@ -0,0 +1,43 @@
+#include "./tox_key.hpp"
+
+#include <cassert>
+
+ToxKey::ToxKey(const std::vector<std::uint8_t>& v) {
+	assert(v.size() == data.size());
+	for (size_t i = 0; i < data.size(); i++) {
+		data[i] = v[i];
+	}
+}
+
+ToxKey::ToxKey(const std::uint8_t* d, std::size_t s) {
+	assert(s == data.size());
+	for (size_t i = 0; i < data.size(); i++) {
+		data[i] = d[i];
+	}
+}
+
+
+bool ToxKey::operator<(const ToxKey& other) const {
+	for (size_t i = 0; i < size(); i++) {
+		if (data[i] < other.data[i]) {
+			return true;
+		} else if (data[i] > other.data[i]) {
+			return false;
+		}
+	}
+
+	return false; // equal
+}
+
+//std::ostream& operator<<(std::ostream& out, const SHA1Digest& v) {
+	//std::string str{};
+	//str.resize(v.size()*2, '?');
+
+	//// HECK, std is 1 larger than size returns ('\0')
+	//sodium_bin2hex(str.data(), str.size()+1, v.data.data(), v.data.size());
+
+	//out << str;
+
+	//return out;
+//}
+
diff --git a/solanaceae/toxcore/tox_key.hpp b/solanaceae/toxcore/tox_key.hpp
new file mode 100644
index 0000000..f1d959a
--- /dev/null
+++ b/solanaceae/toxcore/tox_key.hpp
@@ -0,0 +1,24 @@
+#pragma once
+
+#include <array>
+#include <vector>
+#include <cstdint>
+
+// public key or secret key, or conf uid
+struct ToxKey {
+	std::array<std::uint8_t, 32> data;
+
+	ToxKey(void) = default;
+	ToxKey(const std::vector<std::uint8_t>& v);
+	ToxKey(const std::uint8_t* d, std::size_t s);
+
+	constexpr bool operator==(const ToxKey& other) const { return data == other.data; }
+	constexpr bool operator!=(const ToxKey& other) const { return data != other.data; }
+
+	bool operator<(const ToxKey& other) const;
+
+	constexpr std::size_t size(void) const { return data.size(); }
+};
+
+//std::ostream& operator<<(std::ostream& out, const SHA1Digest& v);
+