visual improvements, readme file update

.github/workflows/release.yml

@@ -27,14 +27,14 @@ jobs:
     
     - name: Build Linux binary
       run: |
-        pyinstaller --onefile --name trace-linux main.py
+        pyinstaller --onefile --name trace main.py
     
     - name: Upload Linux binary to release
       uses: softprops/action-gh-release@v2
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       with:
-        files: ./dist/trace-linux
+        files: ./dist/trace
 
   build-windows:
     runs-on: windows-latest
@@ -55,11 +55,11 @@ jobs:
     
     - name: Build Windows executable
       run: |
-        pyinstaller --onefile --name trace-windows main.py
+        pyinstaller --onefile --name trace main.py
     
     - name: Upload Windows executable to release
       uses: softprops/action-gh-release@v2
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       with:
-        files: ./dist/trace-windows.exe
+        files: ./dist/trace.exe

README.md

@@ -122,7 +122,13 @@ Run `trace` without arguments to open the interface.
     *   IOC counts are displayed in red in case and evidence views.
 *   `a`: **Set Active**. Sets the currently selected Case or Evidence as the global "Active" context.
 *   `d`: Delete the selected Case or Evidence (with confirmation).
-*   `v`: View all notes for the current Case (in Case Detail view).
+*   `v`: **View All Notes**. View all notes for the current Case or Evidence in a scrollable full-screen view.
+    *   **IOC Highlighting**: All IOCs in notes are automatically highlighted in red for immediate visibility.
+    *   **Tag Highlighting**: Hashtags are highlighted in cyan.
+    *   Press `Enter` on any note in case/evidence detail view to jump directly to that note in the full view.
+    *   The selected note will be centered and highlighted.
+    *   Navigate with arrow keys, Page Up/Down, Home/End.
+    *   Press `n` to add a new note without leaving the view.
 *   `/`: Filter list (type to search, `Esc` or `Enter` to exit filter mode).
 *   `s`: Settings menu (in Case List view).
 *   `Esc`: Cancel during input dialogs.

trace/cli.py

@@ -39,14 +39,17 @@ def quick_add_note(content: str):
     note.extract_iocs()  # Extract IOCs from content
 
     # Try signing if enabled
+    signature = None
     if settings.get("pgp_enabled", True):
         gpg_key_id = settings.get("gpg_key_id", None)
         if gpg_key_id:
             signature = Crypto.sign_content(f"Hash: {note.content_hash}\nContent: {note.content}", key_id=gpg_key_id)
-        if signature:
-            note.signature = signature
+            if signature:
+                note.signature = signature
+            else:
+                print("Warning: GPG signature failed (GPG not found or no key). Note saved without signature.")
         else:
-            print("Warning: GPG signature failed (GPG not found or no key). Note saved without signature.")
+            print("Warning: No GPG key ID configured. Note saved without signature.")
 
     # Attach to evidence or case
     if target_evidence:

trace/models.py

@@ -96,6 +96,71 @@ class Note:
         data = f"{self.timestamp}:{self.content}".encode('utf-8')
         self.content_hash = hashlib.sha256(data).hexdigest()
 
+    @staticmethod
+    def extract_iocs_from_text(text):
+        """Extract IOCs from text and return as list of (ioc, type) tuples"""
+        iocs = []
+        seen = set()
+
+        # IPv4 addresses
+        ipv4_pattern = r'\b(?:[0-9]{1,3}\.){3}[0-9]{1,3}\b'
+        for match in re.findall(ipv4_pattern, text):
+            if match not in seen:
+                seen.add(match)
+                iocs.append((match, 'ipv4'))
+
+        # IPv6 addresses (simplified)
+        ipv6_pattern = r'\b(?:[0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}\b'
+        for match in re.findall(ipv6_pattern, text):
+            if match not in seen:
+                seen.add(match)
+                iocs.append((match, 'ipv6'))
+
+        # URLs (check before domains to avoid double-matching)
+        url_pattern = r'https?://[^\s]+'
+        for match in re.findall(url_pattern, text):
+            if match not in seen:
+                seen.add(match)
+                iocs.append((match, 'url'))
+
+        # Domain names (basic pattern)
+        domain_pattern = r'\b(?:[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?\.)+[a-zA-Z]{2,}\b'
+        for match in re.findall(domain_pattern, text):
+            # Filter out common false positives and already seen URLs
+            if match not in seen and not match.startswith('example.'):
+                seen.add(match)
+                iocs.append((match, 'domain'))
+
+        # SHA256 hashes (64 hex chars) - check before SHA1 and MD5
+        sha256_pattern = r'\b[a-fA-F0-9]{64}\b'
+        for match in re.findall(sha256_pattern, text):
+            if match not in seen:
+                seen.add(match)
+                iocs.append((match, 'sha256'))
+
+        # SHA1 hashes (40 hex chars) - check before MD5
+        sha1_pattern = r'\b[a-fA-F0-9]{40}\b'
+        for match in re.findall(sha1_pattern, text):
+            if match not in seen:
+                seen.add(match)
+                iocs.append((match, 'sha1'))
+
+        # MD5 hashes (32 hex chars)
+        md5_pattern = r'\b[a-fA-F0-9]{32}\b'
+        for match in re.findall(md5_pattern, text):
+            if match not in seen:
+                seen.add(match)
+                iocs.append((match, 'md5'))
+
+        # Email addresses
+        email_pattern = r'\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b'
+        for match in re.findall(email_pattern, text):
+            if match not in seen:
+                seen.add(match)
+                iocs.append((match, 'email'))
+
+        return iocs
+
     def to_dict(self):
         return {
             "note_id": self.note_id,

trace/storage.py

@@ -23,7 +23,6 @@ class Storage:
 
     def _create_demo_case(self):
         """Create a demo case with evidence showcasing all features"""
-        # Create demo case
         demo_case = Case(
             case_number="DEMO-2024-001",
             name="Sample Investigation",

trace/tui.py

@@ -490,40 +490,70 @@ class TUI:
         self.stdscr.attroff(note_color)
         y_pos += 1
 
-        # Evidence section header
-        y_pos += 1
-        self.stdscr.attron(curses.color_pair(5) | curses.A_BOLD)
-        self.stdscr.addstr(y_pos, 2, "▪ Evidence")
-        self.stdscr.attroff(curses.color_pair(5) | curses.A_BOLD)
-
+        # Split screen between evidence and case notes
+        # Allocate space: half for evidence, half for case notes (if both exist)
+        available_space = self.content_h - 5
+        case_notes = self.active_case.notes
         evidence_list = self._get_filtered_list(self.active_case.evidence, "name", "description")
 
-        # Show count
-        self.stdscr.attron(curses.color_pair(6) | curses.A_DIM)
-        self.stdscr.addstr(y_pos, 14, f"({len(evidence_list)} items)")
-        self.stdscr.attroff(curses.color_pair(6) | curses.A_DIM)
+        # Determine context: are we selecting evidence or notes?
+        # Evidence items are indices 0 to len(evidence)-1
+        # Case notes are indices len(evidence) to len(evidence)+len(notes)-1
+        total_items = len(evidence_list) + len(case_notes)
+
+        # Determine what's selected
+        selecting_evidence = self.selected_index < len(evidence_list)
+
+        # Evidence section header
+        if y_pos < self.height - 3:
+            self.stdscr.attron(curses.color_pair(5) | curses.A_BOLD)
+            self.stdscr.addstr(y_pos, 2, "▪ Evidence")
+            self.stdscr.attroff(curses.color_pair(5) | curses.A_BOLD)
+
+            # Show count
+            self.stdscr.attron(curses.color_pair(6) | curses.A_DIM)
+            self.stdscr.addstr(y_pos, 14, f"({len(evidence_list)} items)")
+            self.stdscr.attroff(curses.color_pair(6) | curses.A_DIM)
 
         y_pos += 1
 
         if not evidence_list:
-            self.stdscr.attron(curses.color_pair(3))
-            self.stdscr.addstr(y_pos + 1, 4, "┌─ No evidence items")
-            self.stdscr.addstr(y_pos + 2, 4, "└─ Press 'N' to add evidence")
-            self.stdscr.attroff(curses.color_pair(3))
+            # Check if we have space to display the message
+            if y_pos + 2 < self.height - 2:
+                self.stdscr.attron(curses.color_pair(3))
+                self.stdscr.addstr(y_pos + 1, 4, "┌─ No evidence items")
+                self.stdscr.addstr(y_pos + 2, 4, "└─ Press 'N' to add evidence")
+                self.stdscr.attroff(curses.color_pair(3))
         else:
             # Scrolling for evidence list
-            # List starts at y=7
-            list_h = self.content_h - 5 # 7 is header offset
-            if list_h < 1: list_h = 1
+            # Calculate remaining space
+            remaining_space = self.content_h - (y_pos - 2)
+            list_h = max(1, remaining_space)
 
-            self._update_scroll(len(evidence_list))
+            self._update_scroll(total_items)
 
-            for i in range(list_h):
-                idx = self.scroll_offset + i
-                if idx >= len(evidence_list): break
+            # Calculate space for evidence
+            evidence_space = min(len(evidence_list), available_space // 2) if case_notes else available_space
 
-                ev = evidence_list[idx]
-                y = y_pos + 2 + i
+            self._update_scroll(total_items)
+
+            # Calculate which evidence items to display
+            # If selecting a case note, show evidence from the beginning
+            # If selecting evidence, scroll to show the selected evidence
+            if selecting_evidence:
+                evidence_scroll_offset = max(0, self.selected_index - evidence_space // 2)
+            else:
+                evidence_scroll_offset = 0
+
+            for i in range(evidence_space):
+                evidence_idx = evidence_scroll_offset + i
+                if evidence_idx < 0 or evidence_idx >= len(evidence_list):
+                    continue
+
+                ev = evidence_list[evidence_idx]
+                y = y_pos + i
+                if y >= self.height - 3:  # Don't overflow into status bar
+                    break
 
                 note_count = len(ev.notes)
 
@@ -563,7 +593,8 @@ class TUI:
                 # Truncate safely
                 base_display = self._safe_truncate(display_str, self.width - 6)
 
-                if idx == self.selected_index:
+                # Check if this evidence item is selected
+                if evidence_idx == self.selected_index:
                     # Highlighted selection
                     self.stdscr.attron(curses.color_pair(1))
                     self.stdscr.addstr(y, 4, base_display)
@@ -596,6 +627,56 @@ class TUI:
                         else:
                             self.stdscr.addstr(y, 4, base_display)
 
+            y_pos += evidence_space
+
+        # Case Notes section
+        if case_notes:
+            y_pos += 2
+            if y_pos < self.height - 3:
+                self.stdscr.attron(curses.color_pair(5) | curses.A_BOLD)
+                self.stdscr.addstr(y_pos, 2, "▪ Case Notes")
+                self.stdscr.attroff(curses.color_pair(5) | curses.A_BOLD)
+                self.stdscr.attron(curses.color_pair(6) | curses.A_DIM)
+                self.stdscr.addstr(y_pos, 16, f"({len(case_notes)} notes)")
+                self.stdscr.attroff(curses.color_pair(6) | curses.A_DIM)
+            y_pos += 1
+
+            # Calculate remaining space for case notes
+            remaining_space = self.content_h - (y_pos - 2)
+            notes_space = max(1, remaining_space)
+
+            # Calculate which notes to display
+            if selecting_evidence:
+                notes_scroll_offset = 0
+            else:
+                notes_scroll_offset = max(0, (self.selected_index - len(evidence_list)) - notes_space // 2)
+
+            for i in range(notes_space):
+                note_idx = notes_scroll_offset + i
+                if note_idx >= len(case_notes):
+                    break
+
+                note = case_notes[note_idx]
+                y = y_pos + i
+                
+                # Check if we're out of bounds
+                if y >= self.height - 3:
+                    break
+
+                # Format note content
+                note_content = note.content.replace('\n', ' ').replace('\r', ' ')
+                display_str = f"- {note_content}"
+                display_str = self._safe_truncate(display_str, self.width - 6)
+
+                # Highlight if selected
+                item_idx = len(evidence_list) + note_idx
+                if item_idx == self.selected_index:
+                    self.stdscr.attron(curses.color_pair(1))
+                    self.stdscr.addstr(y, 4, display_str)
+                    self.stdscr.attroff(curses.color_pair(1))
+                else:
+                    self.stdscr.addstr(y, 4, display_str)
+
         self.stdscr.addstr(self.height - 3, 2, "[N] New Evidence  [n] Add Note  [t] Tags  [i] IOCs  [v] View Notes  [a] Active  [d] Delete  [?] Help", curses.color_pair(3))
 
     def draw_evidence_detail(self):
@@ -833,11 +914,11 @@ class TUI:
 
         current_y += 1
 
-        # Content with tag highlighting
+        # Content with tag and IOC highlighting
         self.stdscr.addstr(current_y, 2, "Content:", curses.A_BOLD)
         current_y += 1
 
-        # Display content with highlighted tags
+        # Display content with highlighted tags and IOCs
         content_lines = self.current_note.content.split('\n')
         max_content_lines = self.content_h - (current_y - 2) - 6  # Reserve space for hash/sig
 
@@ -845,27 +926,72 @@ class TUI:
             if current_y >= self.height - 6:
                 break
 
-            # Highlight tags in the content
+            # Highlight both tags and IOCs in the content
             display_line = self._safe_truncate(line, self.width - 6)
             x_pos = 4
 
-            # Simple tag highlighting - split by words and color tags
+            # Extract IOCs and tags from the line
+            from .models import Note
             import re
-            parts = re.split(r'(#\w+)', display_line)
-            for part in parts:
-                if part.startswith('#'):
+            
+            iocs_found = Note.extract_iocs_from_text(display_line)
+            tags_pattern = r'#\w+'
+            tags_found = [(match.group(), match.start()) for match in re.finditer(tags_pattern, display_line)]
+            
+            # Combine IOCs and tags into a list of (text, start_pos, type)
+            highlights = []
+            for ioc, _ in iocs_found:
+                pos = display_line.find(ioc)
+                if pos != -1:
+                    highlights.append((ioc, pos, 'ioc'))
+            for tag, pos in tags_found:
+                highlights.append((tag, pos, 'tag'))
+            
+            # Sort by position
+            highlights.sort(key=lambda x: x[1])
+            
+            if highlights:
+                # Display with highlighting
+                remaining = display_line
+                for i, (text, orig_pos, htype) in enumerate(highlights):
+                    # Find position in remaining text
+                    pos = remaining.find(text)
+                    if pos == -1:
+                        continue
+                    
+                    # Print text before highlight
+                    if pos > 0:
+                        try:
+                            self.stdscr.addstr(current_y, x_pos, remaining[:pos])
+                            x_pos += pos
+                        except curses.error:
+                            break
+                    
+                    # Print highlighted text
                     try:
-                        self.stdscr.addstr(current_y, x_pos, part, curses.color_pair(3))
+                        if htype == 'ioc':
+                            self.stdscr.addstr(current_y, x_pos, text, curses.color_pair(4))
+                        else:  # tag
+                            self.stdscr.addstr(current_y, x_pos, text, curses.color_pair(3))
+                        x_pos += len(text)
+                    except curses.error:
+                        break
+                    
+                    # Update remaining text
+                    remaining = remaining[pos + len(text):]
+                
+                # Print any remaining text
+                if remaining and x_pos < self.width - 2:
+                    try:
+                        self.stdscr.addstr(current_y, x_pos, remaining[:self.width - x_pos - 2])
                     except curses.error:
                         pass
-                    x_pos += len(part)
-                else:
-                    if x_pos < self.width - 2:
-                        try:
-                            self.stdscr.addstr(current_y, x_pos, part[:self.width - x_pos - 2])
-                        except curses.error:
-                            pass
-                        x_pos += len(part)
+            else:
+                # No highlights, display normally
+                try:
+                    self.stdscr.addstr(current_y, x_pos, display_line)
+                except curses.error:
+                    pass
 
             current_y += 1
 
@@ -918,11 +1044,11 @@ class TUI:
         help_lines.append(("  n                Add note to case", curses.A_NORMAL))
         help_lines.append(("  t                View tags across case and all evidence", curses.A_NORMAL))
         help_lines.append(("  i                View IOCs across case and all evidence", curses.A_NORMAL))
-        help_lines.append(("  v                View all case notes", curses.A_NORMAL))
+        help_lines.append(("  v                View all case notes with IOC highlighting", curses.A_NORMAL))
         help_lines.append(("  a                Set case (or selected evidence) as active", curses.A_NORMAL))
-        help_lines.append(("  d                Delete selected evidence item", curses.A_NORMAL))
+        help_lines.append(("  d                Delete selected evidence item or note", curses.A_NORMAL))
         help_lines.append(("  /                Filter evidence by name or description", curses.A_NORMAL))
-        help_lines.append(("  Enter            Open evidence details", curses.A_NORMAL))
+        help_lines.append(("  Enter            Open evidence details or jump to note", curses.A_NORMAL))
         help_lines.append(("", curses.A_NORMAL))
 
         # Evidence Detail View
@@ -930,9 +1056,10 @@ class TUI:
         help_lines.append(("  n                Add note to evidence", curses.A_NORMAL))
         help_lines.append(("  t                View tags for this evidence", curses.A_NORMAL))
         help_lines.append(("  i                View IOCs for this evidence", curses.A_NORMAL))
-        help_lines.append(("  v                View all evidence notes", curses.A_NORMAL))
+        help_lines.append(("  v                View all evidence notes with IOC highlighting", curses.A_NORMAL))
         help_lines.append(("  a                Set evidence as active context", curses.A_NORMAL))
         help_lines.append(("  d                Delete selected note", curses.A_NORMAL))
+        help_lines.append(("  Enter            Jump to selected note in full view", curses.A_NORMAL))
         help_lines.append(("", curses.A_NORMAL))
 
         # Tags View
@@ -962,7 +1089,11 @@ class TUI:
         help_lines.append(("  Active Context   Set with 'a' key - enables CLI quick notes", curses.A_NORMAL))
         help_lines.append(("                   Run: trace \"your note text\"", curses.A_DIM))
         help_lines.append(("  Tags             Use #hashtag in notes for auto-tagging", curses.A_NORMAL))
+        help_lines.append(("                   Highlighted in cyan throughout the interface", curses.A_DIM))
         help_lines.append(("  IOCs             Auto-extracts IPs, domains, URLs, hashes, emails", curses.A_NORMAL))
+        help_lines.append(("                   Highlighted in red in full note views", curses.A_DIM))
+        help_lines.append(("  Note Navigation  Press Enter on any note to view with highlighting", curses.A_NORMAL))
+        help_lines.append(("                   Selected note auto-centered and highlighted", curses.A_DIM))
         help_lines.append(("  Integrity        All notes SHA256 hashed + optional GPG signing", curses.A_NORMAL))
         help_lines.append(("  GPG Settings     Press 's' to toggle signing & select GPG key", curses.A_NORMAL))
         help_lines.append(("  Source Hash      Store evidence file hashes for chain of custody", curses.A_NORMAL))
@@ -1082,8 +1213,10 @@ class TUI:
                 filtered = self._get_filtered_list(self.cases, "case_number", "name")
                 max_idx = len(filtered) - 1
             elif self.current_view == "case_detail" and self.active_case:
+                # Total items = evidence + case notes
+                case_notes = self.active_case.notes
                 filtered = self._get_filtered_list(self.active_case.evidence, "name", "description")
-                max_idx = len(filtered) - 1
+                max_idx = len(filtered) + len(case_notes) - 1
             elif self.current_view == "evidence_detail" and self.active_evidence:
                 # Navigate through notes in evidence detail view
                 max_idx = len(self.active_evidence.notes) - 1
@@ -1117,15 +1250,56 @@ class TUI:
                     self.current_view = "case_detail"
                     self.selected_index = 0
                     self.scroll_offset = 0
-                    self.filter_query = "" # Reset filter on view change
+                    self.filter_query = ""
+            elif self.current_view == "evidence_detail" and self.active_evidence:
+                # Check if a note is selected
+                notes = self.active_evidence.notes
+                list_h = self.content_h - 5
+                display_notes = notes[-list_h:] if len(notes) > list_h else notes
+                
+                if display_notes and self.selected_index < len(display_notes):
+                    # Calculate the actual note index in the full list
+                    note_offset = len(notes) - len(display_notes)
+                    actual_note_index = note_offset + self.selected_index
+                    # Open notes view and jump to selected note
+                    self._highlight_note_idx = actual_note_index
+                    self.view_evidence_notes(highlight_note_index=actual_note_index)
+                    delattr(self, '_highlight_note_idx') # Reset filter on view change
             elif self.current_view == "case_detail":
                 if self.active_case:
+                    case_notes = self.active_case.notes
                     filtered = self._get_filtered_list(self.active_case.evidence, "name", "description")
-                    if filtered:
+                    
+                    # Check if a note is selected
+                    if self.selected_index < len(case_notes):
+                        # Open notes view and jump to selected note
+                        self._highlight_note_idx = self.selected_index
+                        self.view_case_notes(highlight_note_index=self.selected_index)
+                        delattr(self, '_highlight_note_idx')
+                    elif self.selected_index - len(case_notes) < len(filtered):
+                        # Evidence selected - open it
+                        evidence_idx = self.selected_index - len(case_notes)
+                        self.active_evidence = filtered[evidence_idx]
+                        self.current_view = "evidence_detail"
+                        self.selected_index = 0
+                        self.scroll_offset = 0
+                    case_notes = self.active_case.notes
+                    filtered = self._get_filtered_list(self.active_case.evidence, "name", "description")
+
+                    # Check if selecting evidence or note
+                    if self.selected_index < len(filtered):
+                        # Selected evidence - navigate to evidence detail
                         self.active_evidence = filtered[self.selected_index]
                         self.current_view = "evidence_detail"
                         self.selected_index = 0
-                        self.filter_query = "" # Reset filter
+                        self.filter_query = ""
+                    elif case_notes and self.selected_index - len(filtered) < len(case_notes):
+                        # Selected a note - show note detail view
+                        note_idx = self.selected_index - len(filtered)
+                        self.current_note = case_notes[note_idx]
+                        self.previous_view = "case_detail"
+                        self.current_view = "note_detail"
+                        self.filter_query = ""
             elif self.current_view == "tags_list":
                 # Enter tag -> show notes with that tag
                 if self.current_tags and self.selected_index < len(self.current_tags):
@@ -1143,6 +1317,7 @@ class TUI:
                 # Enter note -> show expanded view
                 if self.tag_notes and self.selected_index < len(self.tag_notes):
                     self.current_note = self.tag_notes[self.selected_index]
+                    self.previous_view = "tag_notes_list"
                     self.current_view = "note_detail"
                     self.selected_index = 0
                     self.scroll_offset = 0
@@ -1163,6 +1338,7 @@ class TUI:
                 # Enter note -> show expanded view
                 if self.ioc_notes and self.selected_index < len(self.ioc_notes):
                     self.current_note = self.ioc_notes[self.selected_index]
+                    self.previous_view = "ioc_notes_list"
                     self.current_view = "note_detail"
                     self.selected_index = 0
                     self.scroll_offset = 0
@@ -1175,7 +1351,8 @@ class TUI:
                 self.selected_index = 0
                 self.scroll_offset = 0
             elif self.current_view == "note_detail":
-                self.current_view = "tag_notes_list"
+                # Return to the view we came from
+                self.current_view = getattr(self, 'previous_view', 'case_detail')
                 self.current_note = None
                 self.selected_index = 0
                 self.scroll_offset = 0
@@ -1291,14 +1468,26 @@ class TUI:
                 self.show_message(f"Active Case: {case.case_number}")
 
         elif self.current_view == "case_detail" and self.active_case:
+            case_notes = self.active_case.notes
             filtered = self._get_filtered_list(self.active_case.evidence, "name", "description")
-            if filtered:
+
+            # Evidence is displayed first (indices 0 to len(evidence)-1)
+            # Case notes are displayed second (indices len(evidence) to len(evidence)+len(notes)-1)
+            if self.selected_index < len(filtered):
+                # Selected evidence - set it as active
                 ev = filtered[self.selected_index]
                 self.state_manager.set_active(case_id=self.active_case.case_id, evidence_id=ev.evidence_id)
                 self.global_active_case_id = self.active_case.case_id
                 self.global_active_evidence_id = ev.evidence_id
                 self.show_message(f"Active: {ev.name}")
+            elif case_notes and self.selected_index - len(filtered) < len(case_notes):
+                # Selected a note - set case as active (not evidence)
+                self.state_manager.set_active(case_id=self.active_case.case_id, evidence_id=None)
+                self.global_active_case_id = self.active_case.case_id
+                self.global_active_evidence_id = None
+                self.show_message(f"Active: Case {self.active_case.case_number}")
             else:
+                # Nothing selected - set case as active
                 self.state_manager.set_active(case_id=self.active_case.case_id, evidence_id=None)
                 self.global_active_case_id = self.active_case.case_id
                 self.global_active_evidence_id = None
@@ -1559,7 +1748,7 @@ class TUI:
                 win.addstr(y, 2, " " * input_width)
 
                 if line_idx < len(lines):
-                    # Show line content
+                    # Show line content (truncated if too long)
                     display_text = lines[line_idx][:input_width]
                     win.addstr(y, 2, display_text)
 
@@ -1681,6 +1870,18 @@ class TUI:
                 line = lines[cursor_line]
                 lines[cursor_line] = line[:cursor_col] + chr(ch) + line[cursor_col:]
                 cursor_col += 1
+                
+                # Auto-wrap to next line if cursor exceeds visible width
+                if cursor_col >= input_width:
+                    # Always ensure there's a next line to move to
+                    if cursor_line >= len(lines) - 1:
+                        # We're on the last line, add a new line
+                        lines.append("")
+                    cursor_line += 1
+                    cursor_col = 0
+                    # Adjust scroll if needed
+                    if cursor_line >= scroll_offset + input_height:
+                        scroll_offset = cursor_line - input_height + 1
 
     def dialog_confirm(self, message):
         curses.curs_set(0)
@@ -1724,6 +1925,7 @@ class TUI:
         x = (self.width - w) // 2
 
         win = curses.newwin(h, w, y, x)
+        win.keypad(True)  # Enable keypad mode for arrow keys
 
         while True:
             win.clear()
@@ -1820,6 +2022,7 @@ class TUI:
         x = (self.width - w) // 2
 
         win = curses.newwin(h, w, y, x)
+        win.keypad(True)  # Enable keypad mode for arrow keys
         scroll_offset = 0
 
         while True:
@@ -1940,14 +2143,10 @@ class TUI:
             return
 
         desc = self._input_dialog("New Evidence - Step 2/3", "Enter description (optional):")
-        if desc is None:
-            self.show_message("Evidence creation cancelled.")
-            return
-
+        # For optional fields, treat None as empty string (user pressed Enter on empty field)
+        
         source_hash = self._input_dialog("New Evidence - Step 3/3", "Enter source hash (optional, e.g. SHA256):")
-        if source_hash is None:
-            self.show_message("Evidence creation cancelled.")
-            return
+        # For optional fields, treat None as empty string (user pressed Enter on empty field)
 
         ev = Evidence(name=name, description=desc or "")
         if source_hash:
@@ -1966,12 +2165,12 @@ class TUI:
 
         if self.current_view == "evidence_detail" and self.active_evidence:
             context_title = f"Add Note → Evidence: {self.active_evidence.name}"
-            context_prompt = f"Case: {self.active_case.case_number if self.active_case else '?'}\nEvidence: {self.active_evidence.name}\n\nNote will be added to this evidence."
+            context_prompt = f"Case: {self.active_case.case_number if self.active_case else '?'}\nEvidence: {self.active_evidence.name}\n"
             recent_notes = self.active_evidence.notes[-5:] if len(self.active_evidence.notes) > 0 else []
             target_evidence = self.active_evidence
         elif self.current_view == "case_detail" and self.active_case:
             context_title = f"Add Note → Case: {self.active_case.case_number}"
-            context_prompt = f"Case: {self.active_case.case_number}\n{self.active_case.name if self.active_case.name else ''}\n\nNote will be added to case notes."
+            context_prompt = f"Case: {self.active_case.case_number}\n{self.active_case.name if self.active_case.name else ''}\nNote will be added to case notes."
             recent_notes = self.active_case.notes[-5:] if len(self.active_case.notes) > 0 else []
             target_case = self.active_case
         elif self.current_view == "case_list":
@@ -1984,14 +2183,14 @@ class TUI:
                         for ev in active_case.evidence:
                             if ev.evidence_id == self.global_active_evidence_id:
                                 context_title = f"Add Note → Evidence: {ev.name}"
-                                context_prompt = f"Case: {active_case.case_number}\nEvidence: {ev.name}\n\nNote will be added to this evidence."
+                                context_prompt = f"Case: {active_case.case_number}\nEvidence: {ev.name}\n"
                                 recent_notes = ev.notes[-5:] if len(ev.notes) > 0 else []
                                 target_case = active_case
                                 target_evidence = ev
                                 break
                     else:
                         context_title = f"Add Note → Case: {active_case.case_number}"
-                        context_prompt = f"Case: {active_case.case_number}\n\nNote will be added to case notes."
+                        context_prompt = f"Case: {active_case.case_number}\nNote will be added to case notes."
                         recent_notes = active_case.notes[-5:] if len(active_case.notes) > 0 else []
                         target_case = active_case
 
@@ -2024,7 +2223,7 @@ class TUI:
 
         signed = False
         if pgp_enabled:
-            sig = Crypto.sign_content(f"Hash: {note.content_hash}\nContent: {note.content}", key_id=gpg_key_id)
+            sig = Crypto.sign_content(f"Hash: {note.content_hash}\nContent: {note.content}", key_id=gpg_key_id or "")
             if sig:
                 note.signature = sig
                 signed = True
@@ -2064,9 +2263,25 @@ class TUI:
                     self.show_message(f"Case {case_to_del.case_number} deleted.")
 
         elif self.current_view == "case_detail" and self.active_case:
+            # Determine if we're deleting a note or evidence based on selected index
+            case_notes = self.active_case.notes
             filtered = self._get_filtered_list(self.active_case.evidence, "name", "description")
-            if filtered:
-                ev_to_del = filtered[self.selected_index]
+
+            # Check if selecting a note (indices 0 to len(notes)-1)
+            if self.selected_index < len(case_notes):
+                # Delete case note
+                note_to_del = case_notes[self.selected_index]
+                preview = note_to_del.content[:50] + "..." if len(note_to_del.content) > 50 else note_to_del.content
+                if self.dialog_confirm(f"Delete note: '{preview}'?"):
+                    self.active_case.notes.remove(note_to_del)
+                    self.storage.save_data()
+                    self.selected_index = 0
+                    self.scroll_offset = 0
+                    self.show_message("Note deleted.")
+            elif filtered and self.selected_index - len(case_notes) < len(filtered):
+                # Delete evidence (adjust index by subtracting case notes count)
+                evidence_idx = self.selected_index - len(case_notes)
+                ev_to_del = filtered[evidence_idx]
                 if self.dialog_confirm(f"Delete Evidence {ev_to_del.name}?"):
                     self.storage.delete_evidence(self.active_case.case_id, ev_to_del.evidence_id)
                     # Check active state
@@ -2074,9 +2289,7 @@ class TUI:
                         # Fallback to case active
                         self.state_manager.set_active(self.active_case.case_id, None)
                         self.global_active_evidence_id = None
-                    # Refresh (in-memory update was done by storage usually? No, storage reloads or we reload)
-                    # We need to reload active_case evidence list or trust storage.cases
-                    # It's better to reload from storage to be safe
+                    # Refresh
                     updated_case = self.storage.get_case(self.active_case.case_id)
                     if updated_case:
                         self.active_case = updated_case
@@ -2109,7 +2322,7 @@ class TUI:
                         self.scroll_offset = 0
                         self.show_message("Note deleted.")
 
-    def view_case_notes(self):
+    def view_case_notes(self, highlight_note_index=None):
         if not self.active_case: return
 
         h = int(self.height * 0.8)
@@ -2117,45 +2330,151 @@ class TUI:
         y = int(self.height * 0.1)
         x = int(self.width * 0.1)
 
+        scroll_offset = 0
+        highlight_idx = highlight_note_index  # Store for persistent highlighting
+
         while True:
             win = curses.newwin(h, w, y, x)
+            win.keypad(True)
             win.box()
-            win.addstr(1, 2, f"Notes: {self.active_case.case_number}", curses.A_BOLD)
+            win.addstr(1, 2, f"Notes: {self.active_case.case_number} ({len(self.active_case.notes)} total)", curses.A_BOLD)
 
             notes = self.active_case.notes
-            max_lines = h - 4
+            content_lines = []
+            note_line_ranges = []  # Track which lines belong to which note
+            
+            # Build all content lines with separators between notes
+            for note_idx, note in enumerate(notes):
+                start_line = len(content_lines)
+                timestamp_str = time.ctime(note.timestamp)
+                content_lines.append(f"[{timestamp_str}]")
+                # Split multi-line notes and wrap long lines
+                for line in note.content.split('\n'):
+                    # Wrap long lines
+                    while len(line) > w - 6:
+                        content_lines.append("  " + line[:w-6])
+                        line = line[w-6:]
+                    content_lines.append("  " + line)
+                content_lines.append("")  # Blank line between notes
+                end_line = len(content_lines) - 1
+                note_line_ranges.append((start_line, end_line, note_idx))
 
-            # Scroll last notes
-            display_notes = notes[-max_lines:] if len(notes) > max_lines else notes
+            max_display_lines = h - 5
+            total_lines = len(content_lines)
 
-            for i, note in enumerate(display_notes):
-                # Replace newlines with spaces for single-line display
-                note_content = note.content.replace('\n', ' ').replace('\r', ' ')
-                display_str = f"- [{time.ctime(note.timestamp)}] {note_content}"
-                # Truncate safely for Unicode
-                display_str = self._safe_truncate(display_str, w - 4)
-                win.addstr(3 + i, 2, display_str)
+            # Jump to highlighted note on first render
+            if highlight_note_index is not None and note_line_ranges:
+                for start, end, idx in note_line_ranges:
+                    if idx == highlight_note_index:
+                        # Center the note in the view
+                        note_middle = (start + end) // 2
+                        scroll_offset = max(0, note_middle - max_display_lines // 2)
+                        highlight_note_index = None  # Only jump once
+                        break
 
-            win.addstr(h-2, 2, "[n] Add Note  [b/q/Esc] Close", curses.color_pair(3))
+            # Adjust scroll bounds
+            max_scroll = max(0, total_lines - max_display_lines)
+            scroll_offset = max(0, min(scroll_offset, max_scroll))
+
+            # Display lines with highlighting
+            for i in range(max_display_lines):
+                line_idx = scroll_offset + i
+                if line_idx >= total_lines:
+                    break
+                display_line = self._safe_truncate(content_lines[line_idx], w - 4)
+                
+                # Check if this line belongs to the highlighted note
+                is_highlighted = False
+                if highlight_idx is not None:
+                    for start, end, idx in note_line_ranges:
+                        if start <= line_idx <= end and idx == highlight_idx:
+                            is_highlighted = True
+                            break
+                
+                try:
+                    y_pos = 3 + i
+                    if is_highlighted:
+                        # Highlight entire line for selected note
+                        win.addstr(y_pos, 2, display_line, curses.color_pair(1))
+                    else:
+                        # Check for IOCs in the line and highlight them
+                        from .models import Note
+                        iocs_found = Note.extract_iocs_from_text(display_line)
+                        
+                        if iocs_found:
+                            # Display with IOC highlighting
+                            x_pos = 2
+                            remaining = display_line
+                            while iocs_found and remaining:
+                                # Find the earliest IOC in the remaining text
+                                earliest_ioc = None
+                                earliest_pos = len(remaining)
+                                for ioc, _ in iocs_found:
+                                    pos = remaining.find(ioc)
+                                    if pos != -1 and pos < earliest_pos:
+                                        earliest_pos = pos
+                                        earliest_ioc = ioc
+                                
+                                if earliest_ioc:
+                                    # Print text before IOC
+                                    if earliest_pos > 0:
+                                        win.addstr(y_pos, x_pos, remaining[:earliest_pos])
+                                        x_pos += earliest_pos
+                                    # Print IOC in color
+                                    win.addstr(y_pos, x_pos, earliest_ioc, curses.color_pair(4))
+                                    x_pos += len(earliest_ioc)
+                                    # Update remaining text
+                                    remaining = remaining[earliest_pos + len(earliest_ioc):]
+                                    # Remove found IOC from list
+                                    iocs_found = [(ioc, t) for ioc, t in iocs_found if ioc != earliest_ioc]
+                                else:
+                                    break
+                            # Print any remaining text
+                            if remaining:
+                                win.addstr(y_pos, x_pos, remaining)
+                        else:
+                            # No IOCs, display normally
+                            win.addstr(y_pos, 2, display_line)
+                except curses.error:
+                    pass
+
+            # Show scroll indicator
+            if total_lines > max_display_lines:
+                scroll_info = f"[{scroll_offset + 1}-{min(scroll_offset + max_display_lines, total_lines)}/{total_lines}]"
+                try:
+                    win.addstr(2, w - len(scroll_info) - 3, scroll_info, curses.A_DIM)
+                except curses.error:
+                    pass
+
+            win.addstr(h-2, 2, "[↑↓] Scroll  [n] Add Note  [b/q/Esc] Close", curses.color_pair(3))
             win.refresh()
             key = win.getch()
             del win
 
             # Handle key presses
-            if key == ord('n') or key == ord('N'):
+            if key == curses.KEY_UP:
+                scroll_offset = max(0, scroll_offset - 1)
+            elif key == curses.KEY_DOWN:
+                scroll_offset = min(max_scroll, scroll_offset + 1)
+            elif key == curses.KEY_PPAGE:  # Page Up
+                scroll_offset = max(0, scroll_offset - max_display_lines)
+            elif key == curses.KEY_NPAGE:  # Page Down
+                scroll_offset = min(max_scroll, scroll_offset + max_display_lines)
+            elif key == curses.KEY_HOME:
+                scroll_offset = 0
+            elif key == curses.KEY_END:
+                scroll_offset = max_scroll
+            elif key == ord('n') or key == ord('N'):
                 # Save current view and switch to case_detail temporarily for context
                 saved_view = self.current_view
                 self.current_view = "case_detail"
                 self.dialog_add_note()
                 self.current_view = saved_view
-                # Continue loop to refresh with new note
+                scroll_offset = max_scroll  # Jump to bottom to show new note
             elif key == ord('b') or key == ord('B') or key == ord('q') or key == ord('Q') or key == 27:  # 27 is Esc
                 break
-            else:
-                # Any other key also closes (backwards compatibility)
-                break
 
-    def view_evidence_notes(self):
+    def view_evidence_notes(self, highlight_note_index=None):
         if not self.active_evidence: return
 
         h = int(self.height * 0.8)
@@ -2163,43 +2482,149 @@ class TUI:
         y = int(self.height * 0.1)
         x = int(self.width * 0.1)
 
+        scroll_offset = 0
+        highlight_idx = highlight_note_index  # Store for persistent highlighting
+
         while True:
             win = curses.newwin(h, w, y, x)
+            win.keypad(True)
             win.box()
-            win.addstr(1, 2, f"Notes: {self.active_evidence.name}", curses.A_BOLD)
+            win.addstr(1, 2, f"Notes: {self.active_evidence.name} ({len(self.active_evidence.notes)} total)", curses.A_BOLD)
 
             notes = self.active_evidence.notes
-            max_lines = h - 4
+            content_lines = []
+            note_line_ranges = []  # Track which lines belong to which note
+            
+            # Build all content lines with separators between notes
+            for note_idx, note in enumerate(notes):
+                start_line = len(content_lines)
+                timestamp_str = time.ctime(note.timestamp)
+                content_lines.append(f"[{timestamp_str}]")
+                # Split multi-line notes and wrap long lines
+                for line in note.content.split('\n'):
+                    # Wrap long lines
+                    while len(line) > w - 6:
+                        content_lines.append("  " + line[:w-6])
+                        line = line[w-6:]
+                    content_lines.append("  " + line)
+                content_lines.append("")  # Blank line between notes
+                end_line = len(content_lines) - 1
+                note_line_ranges.append((start_line, end_line, note_idx))
 
-            # Scroll last notes
-            display_notes = notes[-max_lines:] if len(notes) > max_lines else notes
+            max_display_lines = h - 5
+            total_lines = len(content_lines)
 
-            for i, note in enumerate(display_notes):
-                # Replace newlines with spaces for single-line display
-                note_content = note.content.replace('\n', ' ').replace('\r', ' ')
-                display_str = f"- [{time.ctime(note.timestamp)}] {note_content}"
-                # Truncate safely for Unicode
-                display_str = self._safe_truncate(display_str, w - 4)
-                win.addstr(3 + i, 2, display_str)
+            # Jump to highlighted note on first render
+            if highlight_note_index is not None and note_line_ranges:
+                for start, end, idx in note_line_ranges:
+                    if idx == highlight_note_index:
+                        # Center the note in the view
+                        note_middle = (start + end) // 2
+                        scroll_offset = max(0, note_middle - max_display_lines // 2)
+                        highlight_note_index = None  # Only jump once
+                        break
 
-            win.addstr(h-2, 2, "[n] Add Note  [b/q/Esc] Close", curses.color_pair(3))
+            # Adjust scroll bounds
+            max_scroll = max(0, total_lines - max_display_lines)
+            scroll_offset = max(0, min(scroll_offset, max_scroll))
+
+            # Display lines with highlighting
+            for i in range(max_display_lines):
+                line_idx = scroll_offset + i
+                if line_idx >= total_lines:
+                    break
+                display_line = self._safe_truncate(content_lines[line_idx], w - 4)
+                
+                # Check if this line belongs to the highlighted note
+                is_highlighted = False
+                if highlight_idx is not None:
+                    for start, end, idx in note_line_ranges:
+                        if start <= line_idx <= end and idx == highlight_idx:
+                            is_highlighted = True
+                            break
+                
+                try:
+                    y_pos = 3 + i
+                    if is_highlighted:
+                        # Highlight entire line for selected note
+                        win.addstr(y_pos, 2, display_line, curses.color_pair(1))
+                    else:
+                        # Check for IOCs in the line and highlight them
+                        from .models import Note
+                        iocs_found = Note.extract_iocs_from_text(display_line)
+                        
+                        if iocs_found:
+                            # Display with IOC highlighting
+                            x_pos = 2
+                            remaining = display_line
+                            while iocs_found and remaining:
+                                # Find the earliest IOC in the remaining text
+                                earliest_ioc = None
+                                earliest_pos = len(remaining)
+                                for ioc, _ in iocs_found:
+                                    pos = remaining.find(ioc)
+                                    if pos != -1 and pos < earliest_pos:
+                                        earliest_pos = pos
+                                        earliest_ioc = ioc
+                                
+                                if earliest_ioc:
+                                    # Print text before IOC
+                                    if earliest_pos > 0:
+                                        win.addstr(y_pos, x_pos, remaining[:earliest_pos])
+                                        x_pos += earliest_pos
+                                    # Print IOC in color
+                                    win.addstr(y_pos, x_pos, earliest_ioc, curses.color_pair(4))
+                                    x_pos += len(earliest_ioc)
+                                    # Update remaining text
+                                    remaining = remaining[earliest_pos + len(earliest_ioc):]
+                                    # Remove found IOC from list
+                                    iocs_found = [(ioc, t) for ioc, t in iocs_found if ioc != earliest_ioc]
+                                else:
+                                    break
+                            # Print any remaining text
+                            if remaining:
+                                win.addstr(y_pos, x_pos, remaining)
+                        else:
+                            # No IOCs, display normally
+                            win.addstr(y_pos, 2, display_line)
+                except curses.error:
+                    pass
+
+            # Show scroll indicator
+            if total_lines > max_display_lines:
+                scroll_info = f"[{scroll_offset + 1}-{min(scroll_offset + max_display_lines, total_lines)}/{total_lines}]"
+                try:
+                    win.addstr(2, w - len(scroll_info) - 3, scroll_info, curses.A_DIM)
+                except curses.error:
+                    pass
+
+            win.addstr(h-2, 2, "[↑↓] Scroll  [n] Add Note  [b/q/Esc] Close", curses.color_pair(3))
             win.refresh()
             key = win.getch()
             del win
 
             # Handle key presses
-            if key == ord('n') or key == ord('N'):
+            if key == curses.KEY_UP:
+                scroll_offset = max(0, scroll_offset - 1)
+            elif key == curses.KEY_DOWN:
+                scroll_offset = min(max_scroll, scroll_offset + 1)
+            elif key == curses.KEY_PPAGE:  # Page Up
+                scroll_offset = max(0, scroll_offset - max_display_lines)
+            elif key == curses.KEY_NPAGE:  # Page Down
+                scroll_offset = min(max_scroll, scroll_offset + max_display_lines)
+            elif key == curses.KEY_HOME:
+                scroll_offset = 0
+            elif key == curses.KEY_END:
+                scroll_offset = max_scroll
+            elif key == ord('n') or key == ord('N'):
                 # Save current view and switch to evidence_detail temporarily for context
                 saved_view = self.current_view
                 self.current_view = "evidence_detail"
                 self.dialog_add_note()
                 self.current_view = saved_view
-                # Continue loop to refresh with new note
+                scroll_offset = max_scroll  # Jump to bottom to show new note
             elif key == ord('b') or key == ord('B') or key == ord('q') or key == ord('Q') or key == 27:  # 27 is Esc
                 break
-            else:
-                # Any other key also closes (backwards compatibility)
-                break
 
     def export_iocs(self):
         """Export IOCs from current context to a text file"""