Add 0x0026a custom AES-128-CMAC secure bootloader, Week 11a notebook, and README links

0x0026a_custom-bootloader/bootloader/include/verify.h

@@ -0,0 +1,32 @@
+/**
+ * @file verify.h
+ * @brief Firmware authenticity verification for the secure bootloader.
+ * @author Kevin Thomas
+ * @date 2026
+ *
+ * MIT License
+ * Copyright (c) 2026 Kevin Thomas
+ */
+
+#ifndef VERIFY_H
+#define VERIFY_H
+
+#include <stdbool.h>
+#include "manifest.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief Recompute the CMAC over the application and compare it to the tag.
+ * @param manifest Pointer to the validated manifest.
+ * @return bool True when the tag matches, false otherwise.
+ */
+bool verify_manifest(const fw_manifest_t *manifest);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // VERIFY_H