Version v0.3.8 - Decided against adding USB functionality

.gitignore

@@ -1,6 +1,9 @@
 otp
 pads/
+files/
 Gemini.md
 TropicOfCancer-HenryMiller.txt
+.gitea_token
+true_rng/
 
 # Auto-generated files (none currently)

build.sh

@@ -150,38 +150,151 @@ update_source_version() {
     fi
 }
 
-# Build functions
+# Cross-platform build functions
-build_project() {
+check_cross_compiler() {
-    print_status "Cleaning previous build..."
+    if ! command -v aarch64-linux-gnu-gcc > /dev/null 2>&1; then
-    make clean
+        print_error "ARM64/AArch64 cross-compiler not found!"
-    increment_version
+        print_error "Install with: sudo apt install gcc-aarch64-linux-gnu"
-    print_status "Building OTP project..."
+        print_error "Or on other distros: gcc-cross-aarch64"
-    make
+        return 1
+    fi
+    return 0
+}
+
+upload_release_asset() {
+    local api_url="$1"
+    local token="$2"
+    local version="$3"
+    local filename="$4"
+    local display_name="$5"
+    
+    if [ ! -f "$filename" ]; then
+        print_warning "Binary $filename not found, skipping upload"
+        return 1
+    fi
+    
+    print_status "Uploading $filename as '$display_name' to release..."
+    
+    # Get release ID first
+    local release_id=$(curl -s -H "Authorization: token $token" \
+                       "$api_url/releases/tags/$version" | \
+                       grep -o '"id":[0-9]*' | head -n1 | cut -d: -f2)
+    
+    if [ -z "$release_id" ]; then
+        print_error "Could not get release ID for $version"
+        return 1
+    fi
+    
+    # Upload the asset using multipart/form-data
+    curl -X POST "$api_url/releases/$release_id/assets" \
+         -H "Authorization: token $token" \
+         -F "attachment=@$filename;filename=$display_name"
+    
     if [ $? -eq 0 ]; then
-        print_success "Build completed successfully"
+        print_success "Uploaded $filename as '$display_name' successfully"
     else
-        print_error "Build failed"
+        print_warning "Failed to upload $filename"
         return 1
     fi
 }
 
-build_static() {
+create_gitea_release() {
+    local version="$1"
+    
+    # Read token from ~/.gitea_token
+    if [ ! -f "$HOME/.gitea_token" ]; then
+        print_error "No ~/.gitea_token found. Cannot create release."
+        print_error "Create ~/.gitea_token with your Gitea access token"
+        return 1
+    fi
+    
+    local token=$(cat "$HOME/.gitea_token" | tr -d '\n\r')
+    local api_url="https://git.laantungir.net/api/v1/repos/laantungir/otp"
+    
+    print_status "Creating Gitea release for $version..."
+    
+    # Create release
+    local response=$(curl -s -X POST "$api_url/releases" \
+         -H "Authorization: token $token" \
+         -H "Content-Type: application/json" \
+         -d "{\"tag_name\": \"$version\", \"name\": \"$version\", \"body\": \"Automated release for $version\"}")
+    
+    if echo "$response" | grep -q '"id"'; then
+        print_success "Created release $version"
+        
+        # Upload binaries with descriptive names
+        upload_release_asset "$api_url" "$token" "$version" "otp-x86_64" "otp-${version}-linux-x86_64"
+        upload_release_asset "$api_url" "$token" "$version" "otp-arm64" "otp-${version}-linux-arm64"
+    else
+        print_warning "Release may already exist or creation failed"
+        print_status "Response: $response"
+        
+        # Try to upload to existing release anyway
+        upload_release_asset "$api_url" "$token" "$version" "otp-x86_64" "otp-${version}-linux-x86_64"
+        upload_release_asset "$api_url" "$token" "$version" "otp-arm64" "otp-${version}-linux-arm64"
+    fi
+}
+
+build_project() {
     print_status "Cleaning previous build..."
     make clean
     increment_version
-    print_status "Building OTP project with static linking..."
+    
-    make static
+    # Check for cross-compiler
+    if ! check_cross_compiler; then
+        print_warning "ARM64/AArch64 cross-compiler not available, building x86_64 only"
+        
+        # Build x86_64 only
+        print_status "Building OTP project for x86_64..."
+        make CC=gcc
         if [ $? -eq 0 ]; then
-        print_success "Static build completed successfully"
+            mv otp otp-x86_64
+            print_success "x86_64 build completed successfully"
         else
-        print_error "Static build failed"
+            print_error "x86_64 build failed"
             return 1
         fi
+    else
+        # Build both architectures
+        print_status "Building OTP project for x86_64..."
+        make clean
+        make CC=gcc
+        if [ $? -eq 0 ]; then
+            mv otp otp-x86_64
+            print_success "x86_64 build completed successfully"
+        else
+            print_error "x86_64 build failed"
+            return 1
+        fi
+        
+        print_status "Building OTP project for ARM64/AArch64..."
+        make clean
+        make CC=aarch64-linux-gnu-gcc
+        if [ $? -eq 0 ]; then
+            mv otp otp-arm64
+            print_success "ARM64/AArch64 build completed successfully"
+        else
+            print_error "ARM64/AArch64 build failed"
+            return 1
+        fi
+    fi
+    
+    # Create Gitea release with binaries
+    if [ -f "$HOME/.gitea_token" ]; then
+        create_gitea_release "$NEW_VERSION"
+    else
+        print_warning "No ~/.gitea_token found. Skipping release creation."
+        print_warning "Create ~/.gitea_token with your Gitea access token to enable releases."
+    fi
+    
+    print_success "Build completed successfully"
 }
 
 clean_project() {
     print_status "Cleaning build artifacts..."
     make clean
+    # Remove cross-compiled binaries
+    rm -f otp-x86_64 otp-arm64
     print_success "Clean completed"
 }
 
@@ -212,9 +325,6 @@ case "${1:-build}" in
     build)
         build_project
         ;;
-    static)
-        build_static
-        ;;
     clean)
         clean_project
         ;;
@@ -226,22 +336,29 @@ case "${1:-build}" in
         ;;
     *)
         echo "OTP Cipher Build Script"
-        echo "Usage: $0 [-m \"commit message\"] {build|static|clean|install|uninstall}"
+        echo "Usage: $0 [-m \"commit message\"] {build|clean|install|uninstall}"
         echo ""
         echo "Options:"
         echo "  -m, --message \"text\"  - Specify commit message (skips interactive prompt)"
         echo ""
         echo "Commands:"
-        echo "  build     - Build project with automatic version increment (default)"
+        echo "  build     - Cross-compile for x86_64 and ARM64/AArch64 with automatic version increment (default)"
-        echo "  static    - Build with static linking and version increment"
+        echo "  clean     - Clean build artifacts and cross-compiled binaries"
-        echo "  clean     - Clean build artifacts"
         echo "  install   - Install to system (requires build first)"
         echo "  uninstall - Remove from system"
         echo ""
+        echo "Build Output:"
+        echo "  otp-x86_64  - Native x86_64 binary"
+        echo "  otp-arm64   - ARM64/AArch64 binary for Raspberry Pi (if cross-compiler available)"
+        echo ""
+        echo "Gitea Integration:"
+        echo "  - Automatically creates releases with binaries if ~/.gitea_token exists"
+        echo "  - Requires: ARM64 cross-compiler (gcc-aarch64-linux-gnu)"
+        echo ""
         echo "Examples:"
         echo "  $0"
         echo "  $0 -m \"Fixed checksum parsing bug\""
-        echo "  $0 --message \"Added new feature\" static"
+        echo "  $0 --message \"Added new feature\" build"
         exit 1
         ;;
 esac

otp.h

@@ -0,0 +1,285 @@
+#ifndef OTP_H
+#define OTP_H
+
+////////////////////////////////////////////////////////////////////////////////
+//      OTP CIPHER - FUNCTION PROTOTYPES HEADER
+//      One Time Pad Implementation v0.2.109
+//      
+//      This header file contains all function prototypes extracted from otp.c
+//      Organized by functional categories for better maintainability
+////////////////////////////////////////////////////////////////////////////////
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <termios.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <time.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <string.h>
+#include <ctype.h>
+
+// Constants
+#define MAX_INPUT_SIZE 4096
+#define MAX_LINE_LENGTH 1024
+#define MAX_HASH_LENGTH 65
+#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
+
+////////////////////////////////////////////////////////////////////////////////
+//      TYPE DEFINITIONS
+////////////////////////////////////////////////////////////////////////////////
+
+// Decrypt operation modes for universal decrypt function
+typedef enum {
+    DECRYPT_MODE_INTERACTIVE,    // Interactive text decryption with prompts
+    DECRYPT_MODE_SILENT,         // Silent text decryption (no prompts/labels)
+    DECRYPT_MODE_FILE_TO_TEXT,   // File to text output with prompts
+    DECRYPT_MODE_FILE_TO_FILE    // File to file output (binary)
+} decrypt_mode_t;
+
+// Pad filter types for selection functions
+typedef enum {
+    PAD_FILTER_ALL,           // Show all pads
+    PAD_FILTER_UNUSED_ONLY    // Show only unused pads (0% usage)
+} pad_filter_type_t;
+
+// Enhanced entropy system state structure
+typedef struct {
+    size_t target_bytes;           // Target entropy to collect
+    size_t collected_bytes;        // Bytes collected so far
+    size_t unique_keys;           // Number of unique keys pressed
+    double collection_start_time; // Start timestamp
+    double last_keypress_time;    // Last keypress timestamp
+    unsigned char quality_score;  // Entropy quality (0-100)
+    int auto_complete_enabled;    // Allow auto-complete at minimum
+    unsigned char key_histogram[256]; // Track key frequency
+} entropy_collection_state_t;
+
+////////////////////////////////////////////////////////////////////////////////
+//      CORE APPLICATION FUNCTIONS
+////////////////////////////////////////////////////////////////////////////////
+
+// Main application entry points
+int main(int argc, char* argv[]);
+int interactive_mode(void);
+int command_line_mode(int argc, char* argv[]);
+int pipe_mode(int argc, char* argv[], const char* piped_text);
+
+////////////////////////////////////////////////////////////////////////////////
+//      INPUT/OUTPUT DETECTION FUNCTIONS
+////////////////////////////////////////////////////////////////////////////////
+
+// Stdin detection functions
+int has_stdin_data(void);
+char* read_stdin_text(void);
+
+////////////////////////////////////////////////////////////////////////////////
+//      PREFERENCES MANAGEMENT FUNCTIONS
+////////////////////////////////////////////////////////////////////////////////
+
+// Configuration and preferences handling
+int load_preferences(void);
+int save_preferences(void);
+char* get_preference(const char* key);
+int set_preference(const char* key, const char* value);
+char* get_default_pad_path(void);
+int set_default_pad_path(const char* pad_path);
+
+////////////////////////////////////////////////////////////////////////////////
+//      HARDWARE DETECTION FUNCTIONS
+////////////////////////////////////////////////////////////////////////////////
+
+// OTP thumb drive detection function
+int detect_otp_thumb_drive(char* otp_drive_path, size_t path_size);
+
+////////////////////////////////////////////////////////////////////////////////
+//      USB DRIVE MANAGEMENT FUNCTIONS
+////////////////////////////////////////////////////////////////////////////////
+
+
+////////////////////////////////////////////////////////////////////////////////
+//      EXTERNAL TOOL INTEGRATION FUNCTIONS
+////////////////////////////////////////////////////////////////////////////////
+
+// Editor and file manager functions
+char* get_preferred_editor(void);
+char* get_preferred_file_manager(void);
+int launch_text_editor(const char* initial_content, char* result_buffer, size_t buffer_size);
+int launch_file_manager(const char* start_directory, char* selected_file, size_t buffer_size);
+
+////////////////////////////////////////////////////////////////////////////////
+//      CORE CRYPTOGRAPHIC OPERATIONS
+////////////////////////////////////////////////////////////////////////////////
+
+// Primary encryption/decryption functions
+int generate_pad(uint64_t size_bytes, int show_progress);
+int encrypt_text(const char* pad_identifier, const char* input_text);
+int decrypt_text(const char* pad_identifier, const char* encrypted_message);
+int encrypt_file(const char* pad_identifier, const char* input_file, const char* output_file, int ascii_armor);
+int decrypt_file(const char* input_file, const char* output_file);
+int decrypt_binary_file(FILE* input_fp, const char* output_file);
+int decrypt_ascii_file(const char* input_file, const char* output_file);
+
+////////////////////////////////////////////////////////////////////////////////
+//      ENHANCED ENTROPY SYSTEM FUNCTIONS
+////////////////////////////////////////////////////////////////////////////////
+
+// Entropy source types
+typedef enum {
+    ENTROPY_SOURCE_KEYBOARD = 1,
+    ENTROPY_SOURCE_DICE = 2,
+    ENTROPY_SOURCE_TRUERNG = 3
+} entropy_source_t;
+
+// Terminal control for entropy collection
+int setup_raw_terminal(struct termios* original_termios);
+void restore_terminal(struct termios* original_termios);
+
+// Entropy collection and feedback
+int collect_entropy_with_feedback(unsigned char* entropy_buffer, size_t target_bytes,
+                                 size_t* collected_bytes, int allow_early_exit);
+void display_entropy_progress(const entropy_collection_state_t* state);
+void draw_progress_bar(double percentage, int width);
+void draw_quality_bar(double quality, int width, const char* label);
+
+// TrueRNG Device Constants (updated to match otp.c implementation)
+#define TRUERNG_VID "04D8"
+#define TRUERNG_PID "F5FE"
+#define TRUERNGPRO_VID "16D0"
+#define TRUERNGPRO_PID "0AA0"
+#define TRUERNGPROV2_VID "04D8"
+#define TRUERNGPROV2_PID "EBB5"
+
+// TrueRNG Device Type enumeration
+typedef enum {
+    TRUERNG_ORIGINAL = 1,
+    TRUERNG_PRO = 2,
+    TRUERNG_PRO_V2 = 3
+} truerng_device_type_t;
+
+// TrueRNG entropy collection functions (updated to match implementation)
+int find_truerng_port(char* port_path, size_t port_path_size, truerng_device_type_t* device_type);
+int setup_truerng_serial_port(const char* port_path);
+int collect_truerng_entropy(unsigned char* entropy_buffer, size_t target_bytes, size_t* collected_bytes, int display_progress);
+const char* get_truerng_device_name(truerng_device_type_t device_type);
+int read_usb_device_info(const char* port_name, char* vid, char* pid);
+
+// Dice entropy collection functions (updated to match implementation)
+int collect_dice_entropy(unsigned char* entropy_buffer, size_t target_bytes, size_t* collected_bytes, int display_progress);
+
+// Unified entropy collection interface (updated to match implementation)
+int collect_entropy_by_source(entropy_source_t source, unsigned char* entropy_buffer, size_t target_bytes, size_t* collected_bytes, int display_progress);
+
+// Entropy quality calculation
+double calculate_timing_quality(const entropy_collection_state_t* state);
+double calculate_variety_quality(const entropy_collection_state_t* state);
+unsigned char calculate_overall_quality(const entropy_collection_state_t* state);
+double get_precise_time(void);
+
+// Entropy processing and application
+int derive_chacha20_params(const unsigned char* entropy_data, size_t entropy_size,
+                          unsigned char key[32], unsigned char nonce[12]);
+int add_entropy_to_pad(const char* pad_chksum, const unsigned char* entropy_data,
+                      size_t entropy_size, int show_progress);
+int handle_add_entropy_to_pad(const char* pad_chksum);
+
+// Enhanced entropy system helper functions
+int update_pad_checksum_after_entropy(const char* old_chksum, char* new_chksum);
+int rename_pad_files_safely(const char* old_chksum, const char* new_chksum);
+int is_pad_unused(const char* pad_chksum);
+
+////////////////////////////////////////////////////////////////////////////////
+//      DIRECTORY MANAGEMENT FUNCTIONS
+////////////////////////////////////////////////////////////////////////////////
+
+// Directory handling and path management
+int ensure_pads_directory(void);
+void get_pad_path(const char* chksum, char* pad_path, char* state_path);
+const char* get_files_directory(void);
+void get_default_file_path(const char* filename, char* result_path, size_t result_size);
+void get_directory_display(const char* file_path, char* result, size_t result_size);
+
+////////////////////////////////////////////////////////////////////////////////
+//      UTILITY FUNCTIONS
+////////////////////////////////////////////////////////////////////////////////
+
+// General utility and helper functions
+uint64_t parse_size_string(const char* size_str);
+char* find_pad_by_prefix(const char* prefix);
+int show_pad_info(const char* chksum);
+void show_progress(uint64_t current, uint64_t total, time_t start_time);
+
+////////////////////////////////////////////////////////////////////////////////
+//      FILE OPERATIONS
+////////////////////////////////////////////////////////////////////////////////
+
+// File state and checksum operations
+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);
+
+////////////////////////////////////////////////////////////////////////////////
+//      UNIVERSAL CORE FUNCTIONS FOR CODE CONSOLIDATION
+////////////////////////////////////////////////////////////////////////////////
+
+// Consolidated cryptographic operations
+int universal_xor_operation(const unsigned char* data, size_t data_len,
+                           const unsigned char* pad_data, unsigned char* result);
+int parse_ascii_message(const char* message, char* chksum, uint64_t* offset, char* base64_data);
+int load_pad_data(const char* pad_chksum, uint64_t offset, size_t length, unsigned char** pad_data);
+int generate_ascii_armor(const char* chksum, uint64_t offset, const unsigned char* encrypted_data,
+                        size_t data_length, char** ascii_output);
+int validate_pad_integrity(const char* pad_path, const char* expected_chksum);
+
+// Universal decrypt function - consolidates all decrypt operations
+int universal_decrypt(const char* input_data, const char* output_target, decrypt_mode_t mode);
+
+////////////////////////////////////////////////////////////////////////////////
+//      BASE64 ENCODING FUNCTIONS
+////////////////////////////////////////////////////////////////////////////////
+
+// Custom base64 implementation
+char* custom_base64_encode(const unsigned char* input, int length);
+unsigned char* custom_base64_decode(const char* input, int* output_length);
+
+////////////////////////////////////////////////////////////////////////////////
+//      MENU SYSTEM FUNCTIONS
+////////////////////////////////////////////////////////////////////////////////
+
+// Interactive menu interface functions
+void show_main_menu(void);
+int handle_generate_menu(void);
+int handle_encrypt_menu(void);
+int handle_decrypt_menu(void);
+int handle_pads_menu(void);
+int handle_text_encrypt(void);
+int handle_file_encrypt(void);
+
+////////////////////////////////////////////////////////////////////////////////
+//      ENHANCED INPUT FUNCTIONS
+////////////////////////////////////////////////////////////////////////////////
+
+// Advanced input handling
+int get_filename_with_default(const char* prompt, const char* default_path, char* result, size_t result_size);
+
+////////////////////////////////////////////////////////////////////////////////
+//      PAD SELECTION FUNCTIONS
+////////////////////////////////////////////////////////////////////////////////
+
+// Unified pad selection interface
+char* select_pad_interactive(const char* title, const char* prompt, pad_filter_type_t filter_type, int allow_cancel);
+
+////////////////////////////////////////////////////////////////////////////////
+//      USAGE AND HELP FUNCTIONS
+////////////////////////////////////////////////////////////////////////////////
+
+// Help and usage display
+void print_usage(const char* program_name);
+
+#endif // OTP_H

test_encrypted.txt

@@ -1,8 +0,0 @@
------BEGIN OTP MESSAGE-----
-Version: v0.2.107
-Pad-ChkSum: d0aaeb745bfbc62b1ed8c0eca4f8dc016f4fd9ed49130979f2bb25a2a3c8192e
-Pad-Offset: 1786
-
-rRK8UkPc0t5bybg=
------END OTP MESSAGE-----
-