Version v0.3.16 - "Adding entropy sources"

.gitignore

@@ -5,5 +5,6 @@ Gemini.md
 TropicOfCancer-HenryMiller.txt
 .gitea_token
 true_rng/
+swiftrng/
 
 # Auto-generated files (none currently)

otp.h

@@ -29,7 +29,7 @@
 #define PROGRESS_UPDATE_INTERVAL (64 * 1024 * 1024)  // 64MB intervals
 #define DEFAULT_PADS_DIR "pads"
 #define FILES_DIR "files"
-#define MAX_ENTROPY_BUFFER 32768  // 32KB entropy buffer
+#define MAX_ENTROPY_BUFFER (4 * 1024 * 1024)  // 4MB entropy buffer for large operations
 
 ////////////////////////////////////////////////////////////////////////////////
 //      TYPE DEFINITIONS
@@ -223,6 +223,7 @@ void show_progress(uint64_t current, uint64_t total, time_t start_time);
 int read_state_offset(const char* pad_chksum, uint64_t* offset);
 int write_state_offset(const char* pad_chksum, uint64_t offset);
 int calculate_checksum(const char* filename, char* checksum_hex);
+int calculate_checksum_with_progress(const char* filename, char* checksum_hex, int display_progress, uint64_t file_size);
 
 ////////////////////////////////////////////////////////////////////////////////
 //      UNIVERSAL CORE FUNCTIONS FOR CODE CONSOLIDATION
@@ -248,6 +249,14 @@ int universal_decrypt(const char* input_data, const char* output_target, decrypt
 char* custom_base64_encode(const unsigned char* input, int length);
 unsigned char* custom_base64_decode(const char* input, int* output_length);
 
+////////////////////////////////////////////////////////////////////////////////
+//      TERMINAL UI FUNCTIONS
+////////////////////////////////////////////////////////////////////////////////
+
+// Terminal dimension and UI functions
+void init_terminal_dimensions(void);
+void print_centered_header(const char* text, int pause_before_clear);
+
 ////////////////////////////////////////////////////////////////////////////////
 //      MENU SYSTEM FUNCTIONS
 ////////////////////////////////////////////////////////////////////////////////
@@ -260,6 +269,8 @@ int handle_decrypt_menu(void);
 int handle_pads_menu(void);
 int handle_text_encrypt(void);
 int handle_file_encrypt(void);
+int handle_verify_pad(const char* pad_chksum);
+int handle_delete_pad(const char* pad_chksum);
 
 ////////////////////////////////////////////////////////////////////////////////
 //      ENHANCED INPUT FUNCTIONS