Version v0.2.107 - Update comments

GENERIC_AUTOMATIC_VERSIONING_GUIDE.md

@@ -1,361 +0,0 @@
-# Generic Automatic Version Increment System for Any Repository
-
-Here's a generalized implementation guide for adding automatic versioning to any project:
-
-## Core Concept
-**Automatic patch version increment with each build** - Every build automatically increments the patch version: v0.1.0 → v0.1.1 → v0.1.2, etc.
-
-## Implementation Steps
-
-### 1. Add Version Increment Function to Build Script
-Add this function to your build script (bash example):
-
-```bash
-# Function to automatically increment version
-increment_version() {
-    echo "[INFO] Incrementing version..."
-    
-    # Check if we're in a git repository
-    if ! git rev-parse --git-dir > /dev/null 2>&1; then
-        echo "[WARNING] Not in a git repository - skipping version increment"
-        return 0
-    fi
-    
-    # Get the highest version tag (not chronologically latest)
-    LATEST_TAG=$(git tag -l 'v*.*.*' | sort -V | tail -n 1 || echo "v0.1.0")
-    if [[ -z "$LATEST_TAG" ]]; then
-        LATEST_TAG="v0.1.0"
-    fi
-    
-    # Extract version components (remove 'v' prefix)
-    VERSION=${LATEST_TAG#v}
-    
-    # Parse major.minor.patch using regex
-    if [[ $VERSION =~ ^([0-9]+)\.([0-9]+)\.([0-9]+)$ ]]; then
-        MAJOR=${BASH_REMATCH[1]}
-        MINOR=${BASH_REMATCH[2]}
-        PATCH=${BASH_REMATCH[3]}
-    else
-        echo "[ERROR] Invalid version format in tag: $LATEST_TAG"
-        echo "[ERROR] Expected format: v0.1.0"
-        return 1
-    fi
-    
-    # Increment patch version
-    NEW_PATCH=$((PATCH + 1))
-    NEW_VERSION="v${MAJOR}.${MINOR}.${NEW_PATCH}"
-    
-    echo "[INFO] Current version: $LATEST_TAG"
-    echo "[INFO] New version: $NEW_VERSION"
-    
-    # Create new git tag
-    if git tag "$NEW_VERSION" 2>/dev/null; then
-        echo "[SUCCESS] Created new version tag: $NEW_VERSION"
-    else
-        echo "[WARNING] Tag $NEW_VERSION already exists - using existing version"
-        NEW_VERSION=$LATEST_TAG
-    fi
-    
-    # Update VERSION file for compatibility
-    echo "${NEW_VERSION#v}" > VERSION
-    echo "[SUCCESS] Updated VERSION file to ${NEW_VERSION#v}"
-}
-```
-
-### 2. Generate Version Header Files (For C/C++ Projects)
-Add this to the increment_version function:
-
-```bash
-# Generate version.h header file (adjust path as needed)
-cat > src/version.h << EOF
-/*
- * Auto-Generated Version Header
- * DO NOT EDIT THIS FILE MANUALLY - Generated by build script
- */
-
-#ifndef VERSION_H
-#define VERSION_H
-
-#define VERSION_MAJOR ${MAJOR}
-#define VERSION_MINOR ${MINOR}
-#define VERSION_PATCH ${NEW_PATCH}
-#define VERSION_STRING "${MAJOR}.${MINOR}.${NEW_PATCH}"
-#define VERSION_TAG "${NEW_VERSION}"
-
-/* Build information */
-#define BUILD_DATE "$(date +%Y-%m-%d)"
-#define BUILD_TIME "$(date +%H:%M:%S)"
-#define BUILD_TIMESTAMP "$(date '+%Y-%m-%d %H:%M:%S')"
-
-/* Git information */
-#define GIT_HASH "$(git rev-parse --short HEAD 2>/dev/null || echo 'unknown')"
-#define GIT_BRANCH "$(git rev-parse --abbrev-ref HEAD 2>/dev/null || echo 'unknown')"
-
-/* Display versions */
-#define VERSION_DISPLAY "${NEW_VERSION}"
-#define VERSION_FULL_DISPLAY "${NEW_VERSION} ($(date '+%Y-%m-%d %H:%M:%S'), $(git rev-parse --short HEAD 2>/dev/null || echo 'unknown'))"
-
-/* Version API functions */
-const char* get_version(void);
-const char* get_version_full(void);
-const char* get_build_info(void);
-
-#endif /* VERSION_H */
-EOF
-
-# Generate version.c implementation file
-cat > src/version.c << EOF
-/*
- * Auto-Generated Version Implementation
- * DO NOT EDIT THIS FILE MANUALLY - Generated by build script
- */
-
-#include "version.h"
-
-const char* get_version(void) {
-    return VERSION_TAG;
-}
-
-const char* get_version_full(void) {
-    return VERSION_FULL_DISPLAY;
-}
-
-const char* get_build_info(void) {
-    return "Built on " BUILD_DATE " at " BUILD_TIME " from commit " GIT_HASH " on branch " GIT_BRANCH;
-}
-EOF
-```
-
-### 3. Generate Version File for Other Languages
-
-**Python (`src/__version__.py`):**
-```bash
-cat > src/__version__.py << EOF
-"""Auto-generated version file"""
-__version__ = "${MAJOR}.${MINOR}.${NEW_PATCH}"
-__version_tag__ = "${NEW_VERSION}"
-__build_date__ = "$(date +%Y-%m-%d)"
-__build_time__ = "$(date +%H:%M:%S)"
-__git_hash__ = "$(git rev-parse --short HEAD 2>/dev/null || echo 'unknown')"
-__git_branch__ = "$(git rev-parse --abbrev-ref HEAD 2>/dev/null || echo 'unknown')"
-EOF
-```
-
-**JavaScript/Node.js (update `package.json`):**
-```bash
-# Update package.json version field
-if [ -f package.json ]; then
-    sed -i "s/\"version\": \".*\"/\"version\": \"${MAJOR}.${MINOR}.${NEW_PATCH}\"/" package.json
-fi
-```
-
-**Rust (update `Cargo.toml`):**
-```bash
-if [ -f Cargo.toml ]; then
-    sed -i "s/^version = \".*\"/version = \"${MAJOR}.${MINOR}.${NEW_PATCH}\"/" Cargo.toml
-fi
-```
-
-**Go (generate `version.go`):**
-```bash
-cat > version.go << EOF
-// Auto-generated version file
-package main
-
-const (
-    VersionMajor = ${MAJOR}
-    VersionMinor = ${MINOR}
-    VersionPatch = ${NEW_PATCH}
-    VersionString = "${MAJOR}.${MINOR}.${NEW_PATCH}"
-    VersionTag = "${NEW_VERSION}"
-    BuildDate = "$(date +%Y-%m-%d)"
-    BuildTime = "$(date +%H:%M:%S)"
-    GitHash = "$(git rev-parse --short HEAD 2>/dev/null || echo 'unknown')"
-    GitBranch = "$(git rev-parse --abbrev-ref HEAD 2>/dev/null || echo 'unknown')"
-)
-EOF
-```
-
-**Java (generate `Version.java`):**
-```bash
-cat > src/main/java/Version.java << EOF
-// Auto-generated version class
-public class Version {
-    public static final int VERSION_MAJOR = ${MAJOR};
-    public static final int VERSION_MINOR = ${MINOR};
-    public static final int VERSION_PATCH = ${NEW_PATCH};
-    public static final String VERSION_STRING = "${MAJOR}.${MINOR}.${NEW_PATCH}";
-    public static final String VERSION_TAG = "${NEW_VERSION}";
-    public static final String BUILD_DATE = "$(date +%Y-%m-%d)";
-    public static final String BUILD_TIME = "$(date +%H:%M:%S)";
-    public static final String GIT_HASH = "$(git rev-parse --short HEAD 2>/dev/null || echo 'unknown')";
-    public static final String GIT_BRANCH = "$(git rev-parse --abbrev-ref HEAD 2>/dev/null || echo 'unknown')";
-}
-EOF
-```
-
-### 4. Integrate into Build Targets
-Call `increment_version` before your main build commands:
-
-```bash
-build_library() {
-    increment_version
-    echo "[INFO] Building library..."
-    # Your actual build commands here
-    make clean && make
-}
-
-build_release() {
-    increment_version
-    echo "[INFO] Building release..."
-    # Your release build commands
-}
-
-build_package() {
-    increment_version
-    echo "[INFO] Building package..."
-    # Your packaging commands
-}
-```
-
-### 5. Update .gitignore
-Add generated version files to `.gitignore`:
-
-```gitignore
-# Auto-generated version files
-src/version.h
-src/version.c
-src/__version__.py
-version.go
-src/main/java/Version.java
-VERSION
-```
-
-### 6. Update Build System Files
-
-**For Makefile projects:**
-```makefile
-# Add version.c to your source files
-SOURCES = main.c utils.c version.c
-```
-
-**For CMake projects:**
-```cmake
-# Add version files to your target
-target_sources(your_target PRIVATE src/version.c)
-```
-
-**For Node.js projects:**
-```json
-{
-  "scripts": {
-    "build": "node build.js && increment_version",
-    "version": "node -e \"console.log(require('./package.json').version)\""
-  }
-}
-```
-
-### 7. Create Initial Version Tag
-```bash
-# Start with initial version
-git tag v0.1.0
-```
-
-## Usage Pattern
-```bash
-./build.sh          # v0.1.0 → v0.1.1
-./build.sh release  # v0.1.1 → v0.1.2
-./build.sh package  # v0.1.2 → v0.1.3
-```
-
-## Manual Version Control
-
-### Major/Minor Version Bumps
-```bash
-# For feature releases (minor bump)
-git tag v0.2.0  # Next build: v0.2.1
-
-# For breaking changes (major bump)
-git tag v1.0.0  # Next build: v1.0.1
-```
-
-### Version Reset
-```bash
-# Delete incorrect tags (if needed)
-git tag -d v0.2.1
-git push origin --delete v0.2.1  # If pushed to remote
-
-# Create correct base version
-git tag v0.2.0
-
-# Next build will create v0.2.1
-```
-
-## Example Build Script Template
-```bash
-#!/bin/bash
-set -e
-
-# Colors for output
-RED='\033[0;31m'
-GREEN='\033[0;32m'
-YELLOW='\033[1;33m'
-BLUE='\033[0;34m'
-NC='\033[0m'
-
-print_status() { echo -e "${BLUE}[INFO]${NC} $1"; }
-print_success() { echo -e "${GREEN}[SUCCESS]${NC} $1"; }
-print_warning() { echo -e "${YELLOW}[WARNING]${NC} $1"; }
-print_error() { echo -e "${RED}[ERROR]${NC} $1"; }
-
-# Insert increment_version function here
-
-case "${1:-build}" in
-    build)
-        increment_version
-        print_status "Building project..."
-        # Your build commands
-        ;;
-    clean)
-        print_status "Cleaning build artifacts..."
-        # Your clean commands
-        ;;
-    test)
-        print_status "Running tests..."
-        # Your test commands (no version increment)
-        ;;
-    release)
-        increment_version
-        print_status "Building release..."
-        # Your release commands
-        ;;
-    *)
-        echo "Usage: $0 {build|clean|test|release}"
-        exit 1
-        ;;
-esac
-```
-
-## Benefits
-1. **Zero maintenance** - No manual version editing
-2. **Build traceability** - Every build has unique version + metadata
-3. **Git integration** - Automatic version tags
-4. **Language agnostic** - Adapt generation for any language
-5. **CI/CD friendly** - Works in automated environments
-6. **Rollback friendly** - Easy to revert to previous versions
-
-## Troubleshooting
-
-### Version Not Incrementing
-- Ensure you're in a git repository
-- Check that git tags exist: `git tag --list`
-- Verify tag format matches `v*.*.*` pattern
-
-### Tag Already Exists
-If a tag already exists, the build continues with existing version:
-```
-[WARNING] Tag v0.2.1 already exists - using existing version
-```
-
-### Missing Git Information
-If git is unavailable, version files show "unknown" for git hash and branch.

build.sh

@@ -123,9 +123,33 @@ increment_version() {
         fi
     fi
     
+    # Update version strings in source code
+    update_source_version "$NEW_VERSION"
+    
     print_success "Version updated to ${NEW_VERSION}"
 }
 
+# Function to update version strings in source code
+update_source_version() {
+    local NEW_VERSION="$1"
+    
+    print_status "Updating version strings in source code..."
+    
+    # Replace hardcoded version strings in otp.c with the current git tag
+    if [ -f "otp.c" ]; then
+        # Update main menu version
+        sed -i "s/OTP v[0-9]\+\.[0-9]\+\.[0-9]\+/OTP $NEW_VERSION/g" otp.c
+        # Update ASCII output version
+        sed -i "s/Version: v[0-9]\+\.[0-9]\+\.[0-9]\+/Version: $NEW_VERSION/g" otp.c
+        # Update usage/help text version
+        sed -i "s/Implementation v[0-9]\+\.[0-9]\+\.[0-9]\+/Implementation $NEW_VERSION/g" otp.c
+        
+        print_success "Updated version strings in otp.c to $NEW_VERSION"
+    else
+        print_warning "otp.c not found - skipping version string updates"
+    fi
+}
+
 # Build functions
 build_project() {
     print_status "Cleaning previous build..."
@@ -200,28 +224,23 @@ case "${1:-build}" in
     uninstall)
         uninstall_project
         ;;
-    version)
-        increment_version
-        print_status "Version tag updated"
-        ;;
     *)
         echo "OTP Cipher Build Script"
-        echo "Usage: $0 [-m \"commit message\"] {build|static|clean|install|uninstall|version}"
+        echo "Usage: $0 [-m \"commit message\"] {build|static|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 "  static    - Build with static linking"
+        echo "  static    - Build with static linking and version increment"
         echo "  clean     - Clean build artifacts"
         echo "  install   - Install to system (requires build first)"
         echo "  uninstall - Remove from system"
-        echo "  version   - Update version tag only"
         echo ""
         echo "Examples:"
-        echo "  $0 build"
-        echo "  $0 -m \"Fixed checksum parsing bug\" build"
+        echo "  $0"
+        echo "  $0 -m \"Fixed checksum parsing bug\""
         echo "  $0 --message \"Added new feature\" static"
         exit 1
         ;;

files/o2.txt.otp.asc

@@ -0,0 +1,7 @@
+-----BEGIN OTP MESSAGE-----
+Version: v1.0.0
+Pad-ChkSum: d0aaeb745bfbc62b1ed8c0eca4f8dc016f4fd9ed49130979f2bb25a2a3c8192e
+Pad-Offset: 128
+
+6+JsEJWRpLI2Z62tSw3EMiIjyTWVk0IfSek1to0/nYPXrswMzCtlultBcA==
+-----END OTP MESSAGE-----

otp.c

@@ -467,7 +467,7 @@ int interactive_mode(void) {
 void show_main_menu(void) {
 
 
-    printf("\n=========================== Main Menu - OTP v1.0.0 ===========================\n\n");
+    printf("\n=========================== Main Menu - OTP v0.2.106 ===========================\n\n");
 
     printf(" \033[4mT\033[0mext encrypt\n");    //TEXT ENCRYPT
     printf(" \033[4mF\033[0mile encrypt\n");    //FILE ENCRYPT
@@ -1249,6 +1249,17 @@ int add_entropy_to_pad(const char* pad_chksum, const unsigned char* entropy_data
     return 0;
 }
 
+
+
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+//      ENCRYPT AND DECRYPT
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+
+
+
+
 int encrypt_text(const char* pad_identifier, const char* input_text) {
     char* pad_chksum = find_pad_by_prefix(pad_identifier);
     if (!pad_chksum) {
@@ -1926,190 +1937,14 @@ int write_state_offset(const char* pad_chksum, uint64_t offset) {
     return 0;
 }
 
-int calculate_checksum(const char* filename, char* checksum_hex) {
-    FILE* file = fopen(filename, "rb");
-    if (!file) {
-        return 1;
-    }
 
-    unsigned char checksum[32];
-    unsigned char buffer[64 * 1024];  // 64KB buffer for large files
-    size_t bytes_read;
 
-    // Initialize checksum
-    memset(checksum, 0, 32);
-    size_t total_bytes = 0;
 
-    // Calculate XOR checksum of entire file
-    while ((bytes_read = fread(buffer, 1, sizeof(buffer), file)) > 0) {
-        // Process this chunk with XOR checksum
-        for (size_t i = 0; i < bytes_read; i++) {
-            unsigned char bucket = (total_bytes + i) % 32;
-            checksum[bucket] ^= buffer[i] ^ (((total_bytes + i) >> 8) & 0xFF) ^ 
-                               (((total_bytes + i) >> 16) & 0xFF) ^ (((total_bytes + i) >> 24) & 0xFF);
-        }
-        total_bytes += bytes_read;
-    }
 
-    fclose(file);
 
-    // Now encrypt the checksum with the first 32 bytes of the pad
-    fseek(file = fopen(filename, "rb"), 0, SEEK_SET);
-    unsigned char pad_key[32];
-    if (fread(pad_key, 1, 32, file) != 32) {
-        fclose(file);
-        return 1;
-    }
-    fclose(file);
 
-    // XOR encrypt the checksum with pad data to create unique identifier
-    unsigned char encrypted_checksum[32];
-    for (int i = 0; i < 32; i++) {
-        encrypted_checksum[i] = checksum[i] ^ pad_key[i];
-    }
 
-    // Convert to hex string (64 characters)
-    for (int i = 0; i < 32; i++) {
-        sprintf(checksum_hex + (i * 2), "%02x", encrypted_checksum[i]);
-    }
-    checksum_hex[64] = '\0';
 
-    return 0;
-}
-
-// Keyboard entropy functions
-int setup_raw_terminal(struct termios* original_termios) {
-    struct termios new_termios;
-    
-    if (tcgetattr(STDIN_FILENO, original_termios) != 0) {
-        return 1;
-    }
-    
-    new_termios = *original_termios;
-    new_termios.c_lflag &= ~(ICANON | ECHO);
-    new_termios.c_cc[VMIN] = 0;
-    new_termios.c_cc[VTIME] = 0;
-    
-    if (tcsetattr(STDIN_FILENO, TCSANOW, &new_termios) != 0) {
-        return 1;
-    }
-    
-    // Set stdin to non-blocking
-    int flags = fcntl(STDIN_FILENO, F_GETFL);
-    if (fcntl(STDIN_FILENO, F_SETFL, flags | O_NONBLOCK) == -1) {
-        tcsetattr(STDIN_FILENO, TCSANOW, original_termios);
-        return 1;
-    }
-    
-    return 0;
-}
-
-void restore_terminal(struct termios* original_termios) {
-    tcsetattr(STDIN_FILENO, TCSANOW, original_termios);
-    
-    // Reset stdin to blocking
-    int flags = fcntl(STDIN_FILENO, F_GETFL);
-    fcntl(STDIN_FILENO, F_SETFL, flags & ~O_NONBLOCK);
-}
-
-// Enhanced entropy collection with visual feedback
-int collect_entropy_with_feedback(unsigned char* entropy_buffer, size_t target_bytes,
-                                 size_t* collected_bytes, int allow_early_exit) {
-    struct termios original_termios;
-    entropy_collection_state_t state = {0};
-    
-    // Initialize state
-    state.target_bytes = target_bytes;
-    state.auto_complete_enabled = allow_early_exit;
-    state.collection_start_time = get_precise_time();
-    
-    // Setup raw terminal
-    if (setup_raw_terminal(&original_termios) != 0) {
-        printf("Error: Cannot setup terminal for entropy collection\n");
-        return 1;
-    }
-    
-    // Clear screen area for display
-    printf("\n\n\n\n\n\n");
-    
-    unsigned char entropy_block[16];
-    struct timespec timestamp;
-    uint32_t sequence_counter = 0;
-    char key;
-    unsigned char seen_keys[256] = {0};
-    
-    *collected_bytes = 0;
-    
-    while (state.collected_bytes < target_bytes) {
-        // Update display
-        state.quality_score = calculate_overall_quality(&state);
-        display_entropy_progress(&state);
-        
-        // Non-blocking read
-        if (read(STDIN_FILENO, &key, 1) == 1) {
-            // Handle ESC key for early exit
-            if (key == 27 && allow_early_exit && state.collected_bytes >= 1024) {
-                break; // Early exit allowed
-            }
-            
-            // Record keypress timing
-            double current_time = get_precise_time();
-            state.last_keypress_time = current_time;
-            
-            // Update key histogram
-            state.key_histogram[(unsigned char)key]++;
-            
-            // Get high precision timestamp
-            clock_gettime(CLOCK_MONOTONIC, &timestamp);
-            
-            // Create enhanced entropy block: [key][timestamp][sequence][quality_bits]
-            entropy_block[0] = key;
-            memcpy(&entropy_block[1], &timestamp.tv_sec, 8);
-            memcpy(&entropy_block[9], &timestamp.tv_nsec, 4);
-            memcpy(&entropy_block[13], &sequence_counter, 2);
-            entropy_block[15] = (unsigned char)(current_time * 1000) & 0xFF; // Sub-millisecond timing
-            
-            // Add to entropy buffer
-            if (state.collected_bytes + 16 <= MAX_ENTROPY_BUFFER) {
-                memcpy(entropy_buffer + state.collected_bytes, entropy_block, 16);
-                state.collected_bytes += 16;
-            }
-            
-            sequence_counter++;
-            
-            // Track unique keys
-            if (!seen_keys[(unsigned char)key]) {
-                seen_keys[(unsigned char)key] = 1;
-                state.unique_keys++;
-            }
-        } else {
-            // No key available, just sleep and wait for keystrokes
-            usleep(10000); // 10ms delay - wait for keystrokes, don't add timing entropy
-        }
-        
-        // Auto-complete at target if enabled
-        if (state.collected_bytes >= target_bytes) {
-            break;
-        }
-    }
-    
-    // Final display update
-    state.quality_score = calculate_overall_quality(&state);
-    display_entropy_progress(&state);
-    
-    // Summary
-    double collection_time = get_precise_time() - state.collection_start_time;
-    printf("\n\n✓ Entropy collection complete!\n");
-    printf("  Collected: %zu bytes in %.1f seconds\n", state.collected_bytes, collection_time);
-    printf("  Quality: %d%% (Excellent: 80%%+, Good: 60%%+)\n", state.quality_score);
-    printf("  Unique keys: %zu\n", state.unique_keys);
-    
-    // Restore terminal
-    restore_terminal(&original_termios);
-    
-    *collected_bytes = state.collected_bytes;
-    return 0;
-}
 
 
 // Directory management functions
@@ -2599,7 +2434,14 @@ unsigned char* custom_base64_decode(const char* input, int* output_length) {
     return decoded;
 }
 
-// Enhanced entropy system implementation
+
+
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+//      ADD ENTROPY
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+
 
 double get_precise_time(void) {
     struct timespec ts;
@@ -2797,7 +2639,6 @@ int derive_chacha20_params(const unsigned char* entropy_data, size_t entropy_siz
     return 0; // Success
 }
 
-// Enhanced entropy system helper functions
 
 // Check if a pad is unused (0% usage)
 int is_pad_unused(const char* pad_chksum) {
@@ -2888,6 +2729,143 @@ int update_pad_checksum_after_entropy(const char* old_chksum, char* new_chksum)
     return 0; // Success
 }
 
+// Enhanced entropy collection with visual feedback
+int collect_entropy_with_feedback(unsigned char* entropy_buffer, size_t target_bytes,
+                                 size_t* collected_bytes, int allow_early_exit) {
+    struct termios original_termios;
+    entropy_collection_state_t state = {0};
+    
+    // Initialize state
+    state.target_bytes = target_bytes;
+    state.auto_complete_enabled = allow_early_exit;
+    state.collection_start_time = get_precise_time();
+    
+    // Setup raw terminal
+    if (setup_raw_terminal(&original_termios) != 0) {
+        printf("Error: Cannot setup terminal for entropy collection\n");
+        return 1;
+    }
+    
+    // Clear screen area for display
+    printf("\n\n\n\n\n\n");
+    
+    unsigned char entropy_block[16];
+    struct timespec timestamp;
+    uint32_t sequence_counter = 0;
+    char key;
+    unsigned char seen_keys[256] = {0};
+    
+    *collected_bytes = 0;
+    
+    while (state.collected_bytes < target_bytes) {
+        // Update display
+        state.quality_score = calculate_overall_quality(&state);
+        display_entropy_progress(&state);
+        
+        // Non-blocking read
+        if (read(STDIN_FILENO, &key, 1) == 1) {
+            // Handle ESC key for early exit
+            if (key == 27 && allow_early_exit && state.collected_bytes >= 1024) {
+                break; // Early exit allowed
+            }
+            
+            // Record keypress timing
+            double current_time = get_precise_time();
+            state.last_keypress_time = current_time;
+            
+            // Update key histogram
+            state.key_histogram[(unsigned char)key]++;
+            
+            // Get high precision timestamp
+            clock_gettime(CLOCK_MONOTONIC, &timestamp);
+            
+            // Create enhanced entropy block: [key][timestamp][sequence][quality_bits]
+            entropy_block[0] = key;
+            memcpy(&entropy_block[1], &timestamp.tv_sec, 8);
+            memcpy(&entropy_block[9], &timestamp.tv_nsec, 4);
+            memcpy(&entropy_block[13], &sequence_counter, 2);
+            entropy_block[15] = (unsigned char)(current_time * 1000) & 0xFF; // Sub-millisecond timing
+            
+            // Add to entropy buffer
+            if (state.collected_bytes + 16 <= MAX_ENTROPY_BUFFER) {
+                memcpy(entropy_buffer + state.collected_bytes, entropy_block, 16);
+                state.collected_bytes += 16;
+            }
+            
+            sequence_counter++;
+            
+            // Track unique keys
+            if (!seen_keys[(unsigned char)key]) {
+                seen_keys[(unsigned char)key] = 1;
+                state.unique_keys++;
+            }
+        } else {
+            // No key available, just sleep and wait for keystrokes
+            usleep(10000); // 10ms delay - wait for keystrokes, don't add timing entropy
+        }
+        
+        // Auto-complete at target if enabled
+        if (state.collected_bytes >= target_bytes) {
+            break;
+        }
+    }
+    
+    // Final display update
+    state.quality_score = calculate_overall_quality(&state);
+    display_entropy_progress(&state);
+    
+    // Summary
+    double collection_time = get_precise_time() - state.collection_start_time;
+    printf("\n\n✓ Entropy collection complete!\n");
+    printf("  Collected: %zu bytes in %.1f seconds\n", state.collected_bytes, collection_time);
+    printf("  Quality: %d%% (Excellent: 80%%+, Good: 60%%+)\n", state.quality_score);
+    printf("  Unique keys: %zu\n", state.unique_keys);
+    
+    // Restore terminal
+    restore_terminal(&original_termios);
+    
+    *collected_bytes = state.collected_bytes;
+    return 0;
+}
+
+// Keyboard entropy functions
+int setup_raw_terminal(struct termios* original_termios) {
+    struct termios new_termios;
+    
+    if (tcgetattr(STDIN_FILENO, original_termios) != 0) {
+        return 1;
+    }
+    
+    new_termios = *original_termios;
+    new_termios.c_lflag &= ~(ICANON | ECHO);
+    new_termios.c_cc[VMIN] = 0;
+    new_termios.c_cc[VTIME] = 0;
+    
+    if (tcsetattr(STDIN_FILENO, TCSANOW, &new_termios) != 0) {
+        return 1;
+    }
+    
+    // Set stdin to non-blocking
+    int flags = fcntl(STDIN_FILENO, F_GETFL);
+    if (fcntl(STDIN_FILENO, F_SETFL, flags | O_NONBLOCK) == -1) {
+        tcsetattr(STDIN_FILENO, TCSANOW, original_termios);
+        return 1;
+    }
+    
+    return 0;
+}
+
+void restore_terminal(struct termios* original_termios) {
+    tcsetattr(STDIN_FILENO, TCSANOW, original_termios);
+    
+    // Reset stdin to blocking
+    int flags = fcntl(STDIN_FILENO, F_GETFL);
+    fcntl(STDIN_FILENO, F_SETFL, flags & ~O_NONBLOCK);
+}
+
+
+
+
 ////////////////////////////////////////////////////////////////////////////////
 ////////////////////////////////////////////////////////////////////////////////
 //      UNIVERSAL CORE FUNCTIONS FOR CODE CONSOLIDATION
@@ -3058,7 +3036,7 @@ int generate_ascii_armor(const char* chksum, uint64_t offset, const unsigned cha
     strcpy(*ascii_output, "-----BEGIN OTP MESSAGE-----\n");
     
     char temp_line[256];
-    snprintf(temp_line, sizeof(temp_line), "Version: v1.0.0\n");
+    snprintf(temp_line, sizeof(temp_line), "Version: v0.2.106\n");
     strcat(*ascii_output, temp_line);
     
     snprintf(temp_line, sizeof(temp_line), "Pad-ChkSum: %s\n", chksum);
@@ -3522,7 +3500,12 @@ int get_filename_with_default(const char* prompt, const char* default_path, char
     return 0;
 }
 
-// Editor and file manager implementations
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+//      EDITOR AND FILE MANAGER
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+
 
 char* get_preferred_editor(void) {
     // Check EDITOR environment variable first
@@ -3797,6 +3780,69 @@ int handle_file_encrypt(void) {
 }
 
 
+
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+//      PADS
+////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
+
+
+
+
+int calculate_checksum(const char* filename, char* checksum_hex) {
+    FILE* file = fopen(filename, "rb");
+    if (!file) {
+        return 1;
+    }
+    
+    unsigned char checksum[32];
+    unsigned char buffer[64 * 1024];  // 64KB buffer for large files
+    size_t bytes_read;
+    
+    // Initialize checksum
+    memset(checksum, 0, 32);
+    size_t total_bytes = 0;
+    
+    // Calculate XOR checksum of entire file
+    while ((bytes_read = fread(buffer, 1, sizeof(buffer), file)) > 0) {
+        // Process this chunk with XOR checksum
+        for (size_t i = 0; i < bytes_read; i++) {
+            unsigned char bucket = (total_bytes + i) % 32;
+            checksum[bucket] ^= buffer[i] ^ (((total_bytes + i) >> 8) & 0xFF) ^ 
+                               (((total_bytes + i) >> 16) & 0xFF) ^ (((total_bytes + i) >> 24) & 0xFF);
+        }
+        total_bytes += bytes_read;
+    }
+    
+    fclose(file);
+    
+    // Now encrypt the checksum with the first 32 bytes of the pad
+    fseek(file = fopen(filename, "rb"), 0, SEEK_SET);
+    unsigned char pad_key[32];
+    if (fread(pad_key, 1, 32, file) != 32) {
+        fclose(file);
+        return 1;
+    }
+    fclose(file);
+    
+    // XOR encrypt the checksum with pad data to create unique identifier
+    unsigned char encrypted_checksum[32];
+    for (int i = 0; i < 32; i++) {
+        encrypted_checksum[i] = checksum[i] ^ pad_key[i];
+    }
+    
+    // Convert to hex string (64 characters)
+    for (int i = 0; i < 32; i++) {
+        sprintf(checksum_hex + (i * 2), "%02x", encrypted_checksum[i]);
+    }
+    checksum_hex[64] = '\0';
+    
+    return 0;
+}
+
+
+
 // Unified pad selection function - extracts the best UI from handle_pads_menu()
 char* select_pad_interactive(const char* title, const char* prompt, pad_filter_type_t filter_type, int allow_cancel) {
     // Get list of pads from current directory
@@ -3991,7 +4037,7 @@ char* select_pad_interactive(const char* title, const char* prompt, pad_filter_t
                 for (int i = 0; i < pad_count; i++) {
                     if (strncmp(pads[i].chksum, default_checksum, 64) == 0) {
                         free(current_default);
-                        printf("Selected default pad: %.16s...\n", default_checksum);
+                        printf("Selected default pad: %.16s...\n\n", default_checksum);
                         return strdup(default_checksum);
                     }
                 }
@@ -4540,7 +4586,7 @@ int handle_add_entropy_to_pad(const char* pad_chksum) {
 }
 
 void print_usage(const char* program_name) {
-    printf("OTP Cipher - One Time Pad Implementation v1.0.0\n");
+    printf("OTP Cipher - One Time Pad Implementation v0.2.106\n");
     printf("Built for testing entropy system\n");
     printf("Usage:\n");
     printf("  %s                                         - Interactive mode\n", program_name);