Fixed more info bugs, need to use more constants, lol.

frontends/web/app.py

@@ -76,7 +76,7 @@ from stegasoo.qr_utils import (
 
 app = Flask(__name__)
 app.secret_key = secrets.token_hex(32)
-app.config['MAX_CONTENT_LENGTH'] = MAX_FILE_SIZE  # 10MB max upload
+app.config['MAX_CONTENT_LENGTH'] = MAX_FILE_SIZE  # 20MB max upload
 
 # Temporary file storage for sharing (file_id -> {data, timestamp, filename})
 TEMP_FILES: dict[str, dict] = {}
@@ -101,9 +101,7 @@ try:
     print(f"Current MAX_FILE_SIZE from constants: {MAX_FILE_SIZE}")
     print(f"Current MAX_FILE_PAYLOAD_SIZE: {MAX_FILE_PAYLOAD_SIZE}")
     
-    # Try to increase payload size limit (in bytes)
-    # 15MB should be enough for 7.6MB files with overhead
-    DESIRED_PAYLOAD_SIZE = 15 * 1024 * 1024  # 15MB
+    DESIRED_PAYLOAD_SIZE = 2 * 1024 * 1024  # 2MB
     
     # Note: You might need to patch the stegasoo module
     # if MAX_FILE_PAYLOAD_SIZE is used internally

frontends/web/templates/about.html

@@ -21,19 +21,23 @@
                         <ul class="list-unstyled">
                             <li class="mb-2">
                                 <i class="bi bi-check-circle text-success me-2"></i>
-                                <strong>Text &amp; File Embedding</strong> — Hide messages or any file type (PDF, ZIP, documents)
+                                <strong>Text &amp; File Embedding</strong>
+                                <br/>Hide messages or any file type (PDF, ZIP, documents)
                             </li>
                             <li class="mb-2">
                                 <i class="bi bi-check-circle text-success me-2"></i>
-                                <strong>Multi-Factor Security</strong> — Combines photo + phrase + PIN/RSA key
+                                <strong>Multi-Factor Security</strong>
+                                <br/>Combines photo + phrase + PIN/RSA key
                             </li>
                             <li class="mb-2">
                                 <i class="bi bi-check-circle text-success me-2"></i>
-                                <strong>AES-256-GCM Encryption</strong> — Military-grade authenticated encryption
+                                <strong>AES-256-GCM Encryption</strong>
+                                <br/>Military-grade authenticated encryption
                             </li>
                             <li class="mb-2">
                                 <i class="bi bi-check-circle text-success me-2"></i>
-                                <strong>Daily Rotating Phrases</strong> — Different passphrase each day of the week
+                                <strong>Daily Rotating Phrases</strong>
+                                <br/>Different passphrase each day of the week
                             </li>
                         </ul>
                     </div>
@@ -41,19 +45,23 @@
                         <ul class="list-unstyled">
                             <li class="mb-2">
                                 <i class="bi bi-check-circle text-success me-2"></i>
-                                <strong>Random Pixel Embedding</strong> — Defeats statistical steganalysis
+                                <strong>Random Pixel Embedding</strong>
+                                <br/>Defeats statistical steganalysis
                             </li>
                             <li class="mb-2">
                                 <i class="bi bi-check-circle text-success me-2"></i>
-                                <strong>Format Preservation</strong> — Maintains PNG/BMP lossless formats
+                                <strong>Format Preservation</strong>
+                                <br/>Maintains PNG/BMP lossless formats
                             </li>
                             <li class="mb-2">
                                 <i class="bi bi-check-circle text-success me-2"></i>
-                                <strong>Large Capacity</strong> — Up to {{ max_payload_kb }} KB payload, 16MP images
+                                <strong>Large Capacity</strong>
+                                <br/>Up to {{ max_payload_kb }} KB payload, 24MP images
                             </li>
                             <li class="mb-2">
                                 <i class="bi bi-check-circle text-success me-2"></i>
-                                <strong>Zero Server Storage</strong> — Nothing saved, files auto-expire
+                                <strong>Zero Server Storage</strong>
+                                <br/>Nothing saved, files auto-expire and are scrubbed from disk.
                             </li>
                         </ul>
                     </div>
@@ -172,6 +180,135 @@
             </div>
         </div>
         
+        <!-- REST API Card - UPDATED BASED ON CURRENT IMPLEMENTATION -->
+        <div class="card mb-4">
+            <div class="card-header">
+                <h5 class="mb-0"><i class="bi bi-cpu me-2"></i>REST API</h5>
+            </div>
+            <div class="card-body">
+                <p>
+                    <span class="badge bg-success me-1"><i class="bi bi-check-circle"></i> FastAPI</span>
+                    Stegasoo includes a complete REST API built with FastAPI, featuring automatic documentation,
+                    type validation, and comprehensive error handling.
+                </p>
+                
+                <h6 class="mt-4"><i class="bi bi-layers me-2"></i>API Endpoints</h6>
+                <div class="row">
+                    <div class="col-md-6">
+                        <ul class="small">
+                            <li><code>POST /generate</code> – Generate credentials</li>
+                            <li><code>POST /encode</code> – Encode text message (JSON)</li>
+                            <li><code>POST /encode/file</code> – Encode binary file (JSON)</li>
+                            <li><code>POST /encode/multipart</code> – Encode with file uploads</li>
+                            <li><code>POST /decode</code> – Decode message (JSON)</li>
+                        </ul>
+                    </div>
+                    <div class="col-md-6">
+                        <ul class="small">
+                            <li><code>POST /decode/multipart</code> – Decode with file uploads</li>
+                            <li><code>POST /extract-key-from-qr</code> – Extract RSA key from QR</li>
+                            <li><code>POST /image/info</code> – Get image capacity</li>
+                            <li><code>GET /</code> – API status and capabilities</li>
+                        </ul>
+                    </div>
+                </div>
+                
+                <h6 class="mt-4"><i class="bi bi-file-earmark-code me-2"></i>JSON API Examples</h6>
+                <pre class="bg-dark p-3 rounded"><code>// Generate credentials
+curl -X POST "http://localhost:8000/generate" \
+  -H "Content-Type: application/json" \
+  -d '{"use_pin": true, "use_rsa": false, "pin_length": 6, "words_per_phrase": 3}'
+
+// Encode text message
+curl -X POST "http://localhost:8000/encode" \
+  -H "Content-Type: application/json" \
+  -d '{
+    "message": "secret message",
+    "reference_photo_base64": "BASE64_ENCODED_PHOTO",
+    "carrier_image_base64": "BASE64_ENCODED_IMAGE",
+    "day_phrase": "apple forest thunder",
+    "pin": "123456"
+  }'
+
+// Encode file (base64)
+curl -X POST "http://localhost:8000/encode/file" \
+  -H "Content-Type: application/json" \
+  -d '{
+    "file_data_base64": "BASE64_ENCODED_FILE",
+    "filename": "document.pdf",
+    "reference_photo_base64": "BASE64_ENCODED_PHOTO",
+    "carrier_image_base64": "BASE64_ENCODED_IMAGE",
+    "day_phrase": "apple forest thunder",
+    "pin": "123456"
+  }'</code></pre>
+                
+                <h6 class="mt-4"><i class="bi bi-upload me-2"></i>Multipart API Examples</h6>
+                <pre class="bg-dark p-3 rounded"><code># Encode text with file uploads
+curl -X POST "http://localhost:8000/encode/multipart" \
+  -F "day_phrase=apple forest thunder" \
+  -F "pin=123456" \
+  -F "reference_photo=@photo.jpg" \
+  -F "carrier=@carrier.png" \
+  -F "message=secret" \
+  --output stego.png
+
+# Encode file with QR code key
+curl -X POST "http://localhost:8000/encode/multipart" \
+  -F "day_phrase=apple forest thunder" \
+  -F "pin=123456" \
+  -F "reference_photo=@photo.jpg" \
+  -F "carrier=@carrier.png" \
+  -F "payload_file=@document.pdf" \
+  -F "rsa_key_qr=@keyqr.png" \
+  --output stego.png
+
+# Decode with file uploads
+curl -X POST "http://localhost:8000/decode/multipart" \
+  -F "day_phrase=apple forest thunder" \
+  -F "pin=123456" \
+  -F "reference_photo=@photo.jpg" \
+  -F "stego_image=@stego.png" \
+  --output result.json</code></pre>
+                
+                <h6 class="mt-4"><i class="bi bi-qr-code me-2"></i>QR Code Support</h6>
+                <p class="small">
+                    The API can extract RSA keys from QR code images. QR code reading requires 
+                    <code>pyzbar</code> and <code>libzbar</code> system library.
+                </p>
+                <pre class="bg-dark p-3 rounded"><code># Extract key from QR code
+curl -X POST "http://localhost:8000/extract-key-from-qr" \
+  -F "qr_image=@keyqr.png"</code></pre>
+                
+                <div class="alert alert-info small mt-3">
+                    <i class="bi bi-journal-text me-2"></i>
+                    <strong>Interactive Documentation:</strong> When running the API server, visit 
+                    <code>/docs</code> for Swagger UI or <code>/redoc</code> for ReDoc documentation.
+                    All endpoints include detailed schemas and example requests.
+                </div>
+                
+                <h6 class="mt-4"><i class="bi bi-terminal me-2"></i>Command Line Interface</h6>
+                <p class="small">
+                    Stegasoo also includes a full-featured CLI. Install with <code>pip install stegasoo[cli]</code>
+                    or see the <a href="/cli">CLI documentation</a> for complete usage.
+                </p>
+                <pre class="bg-dark p-3 rounded"><code># CLI Examples
+stegasoo generate --pin --words 3
+stegasoo encode -r photo.jpg -c meme.png -p "phrase" --pin 123456 -m "secret"
+stegasoo decode -r photo.jpg -s stego.png -p "phrase" --pin 123456
+stegasoo info image.png</code></pre>
+                
+                <p class="small text-muted mt-3 mb-0">
+                    API version: {{ version }} &bull; 
+                    <span class="badge bg-{% if has_argon2 %}success{% else %}warning{% endif %} me-1">
+                        {% if has_argon2 %}Argon2 Available{% else %}PBKDF2 Fallback{% endif %}
+                    </span>
+                    <span class="badge bg-{% if has_qrcode_read %}success{% else %}secondary{% endif %}">
+                        {% if has_qrcode_read %}QR Reading Available{% else %}QR Reading Not Available{% endif %}
+                    </span>
+                </p>
+            </div>
+        </div>
+        
         <div class="card mb-4">
             <div class="card-header">
                 <h5 class="mb-0"><i class="bi bi-question-circle me-2"></i>Usage Guide</h5>
@@ -250,7 +387,7 @@
             </div>
         </div>
         
-        <div class="card mb-4">
+        <div class="card">
             <div class="card-header">
                 <h5 class="mb-0"><i class="bi bi-speedometer2 me-2"></i>Limits &amp; Specifications</h5>
             </div>
@@ -259,7 +396,7 @@
                     <tbody>
                         <tr>
                             <td><i class="bi bi-file-text me-2"></i>Max text message</td>
-                            <td><strong>250,000 characters</strong> (~250 KB)</td>
+                            <td><strong>2 million characters</strong> (~2 MB)</td>
                         </tr>
                         <tr>
                             <td><i class="bi bi-file-earmark me-2"></i>Max file payload</td>
@@ -267,11 +404,11 @@
                         </tr>
                         <tr>
                             <td><i class="bi bi-image me-2"></i>Max carrier image</td>
-                            <td><strong>16 megapixels</strong> (~4000×4000)</td>
+                            <td><strong>16 megapixels</strong> (~6000×4000)</td>
                         </tr>
                         <tr>
                             <td><i class="bi bi-upload me-2"></i>Max upload size</td>
-                            <td><strong>10 MB</strong></td>
+                            <td><strong>30 MB</strong></td>
                         </tr>
                         <tr>
                             <td><i class="bi bi-clock me-2"></i>Temp file expiry</td>
@@ -289,61 +426,24 @@
                             <td><i class="bi bi-chat-quote me-2"></i>Phrase length</td>
                             <td><strong>3-12 words</strong> (BIP-39 wordlist)</td>
                         </tr>
+                        <tr>
+                            <td><i class="bi bi-cpu me-2"></i>API documentation</td>
+                            <td><strong>/docs (Swagger)</strong> and <strong>/redoc</strong></td>
+                        </tr>
+                        <tr>
+                            <td><i class="bi bi-qr-code me-2"></i>QR code support</td>
+                            <td><strong>RSA key encoding/extraction </strong>(up to 3072 bit keys)</td>
+                        </tr>
                     </tbody>
                 </table>
             </div>
         </div>
         
-        <div class="card">
-            <div class="card-header">
-                <h5 class="mb-0"><i class="bi bi-terminal me-2"></i>CLI &amp; API</h5>
-            </div>
-            <div class="card-body">
-                <p>Stegasoo is also available as a command-line tool and REST API:</p>
-                
-                <h6 class="mt-3">Command Line</h6>
-                <pre class="bg-dark p-3 rounded"><code># Generate credentials
-stegasoo generate --pin --rsa
-
-# Encode a text message
-stegasoo encode -r photo.jpg -c meme.png -p "apple forest thunder" --pin 123456 -m "secret"
-
-# Encode a file
-stegasoo encode -r photo.jpg -c meme.png -p "apple forest thunder" --pin 123456 -e document.pdf
-
-# Decode (auto-detects text vs file)
-stegasoo decode -r photo.jpg -s stego.png -p "apple forest thunder" --pin 123456</code></pre>
-                
-                <h6 class="mt-4">REST API</h6>
-                <pre class="bg-dark p-3 rounded"><code># Encode with multipart upload
-curl -X POST http://localhost:8000/encode/multipart \
-  -F "reference_photo=@photo.jpg" \
-  -F "carrier=@meme.png" \
-  -F "message=secret" \
-  -F "day_phrase=apple forest thunder" \
-  -F "pin=123456" \
-  --output stego.png
-
-# Encode a file
-curl -X POST http://localhost:8000/encode/multipart \
-  -F "reference_photo=@photo.jpg" \
-  -F "carrier=@meme.png" \
-  -F "payload_file=@document.pdf" \
-  -F "day_phrase=apple forest thunder" \
-  -F "pin=123456" \
-  --output stego.png</code></pre>
-                
-                <p class="small text-muted mt-3 mb-0">
-                    API documentation available at <code>/docs</code> (Swagger) or <code>/redoc</code> when running the API server.
-                </p>
-            </div>
-        </div>
-        
         <div class="text-center mt-4 text-muted small">
             <p>
                 Stegasoo v2.1.0 &bull; 
                 <i class="bi bi-github me-1"></i>Open Source &bull;
-                Built with Python, Flask, and cryptography
+                Built with Python, FastAPI, and cryptography
             </p>
         </div>
     </div>

frontends/web/templates/base.html

@@ -63,7 +63,7 @@
         <div class="container text-center text-muted">
             <small>
                 <img src="{{ url_for('static', filename='favicon.svg') }}" alt="" height="16" class="me-1" style="vertical-align: text-bottom;">
-                Stegasoo v2.1.0 — Hybrid Photo + Day-Phrase + PIN Steganography
+                Stegasoo v2.1.3 — Hybrid Photo + Day-Phrase + PIN Steganography
             </small>
         </div>
     </footer>

frontends/web/templates/encode.html

@@ -204,8 +204,8 @@
                 <div class="alert alert-secondary mt-4 small">
                     <i class="bi bi-info-circle me-1"></i>
                     <strong>Limits:</strong> 
-                    Carrier image max ~4 megapixels (2000×2000). 
-                    Files max 10MB upload. 
+                    Carrier image max ~24 megapixels (6000×4000). 
+                    Files max 30MB upload. 
                     Payload max {{ max_payload_kb }} KB.
                 </div>
             </div>

frontends/web/templates/index.html

@@ -20,7 +20,7 @@
                 <div class="card-body text-center">
                     <h5 class="card-title">Encode Message</h5>
                     <p class="card-text text-muted">
-                        Hide your secret message inside an innocent-looking image using your daily phrase + PIN.
+                        Hide and enrypt secret data in an image like a photo or meme.
                     </p>
                 </div>
             </div>
@@ -37,7 +37,7 @@
                 <div class="card-body text-center">
                     <h5 class="card-title">Decode Message</h5>
                     <p class="card-text text-muted">
-                        Extract and decrypt hidden messages from Stegasoo-encoded images using your credentials.
+                        Extract and decrypt data from Stegasoo-encoded images
                     </p>
                 </div>
             </div>
@@ -54,7 +54,7 @@
                 <div class="card-body text-center">
                     <h5 class="card-title">Generate Keys</h5>
                     <p class="card-text text-muted">
-                        Create your weekly phrase card and PIN. Memorize 21 words + 6 digits for maximum security.
+                        Create weekly phrase card with PIN and/or RSA key. 
                     </p>
                 </div>
             </div>
@@ -73,21 +73,29 @@
                 <ul class="list-unstyled">
                     <li class="mb-2">
                         <i class="bi bi-image text-info me-2"></i>
-                        <strong>Reference Photo</strong> — Any photo you and recipient both have
+                        <strong>Reference Photo:</strong> Any photo you and recipient both have
                     </li>
                     <li class="mb-2">
                         <i class="bi bi-chat-quote text-info me-2"></i>
-                        <strong>Day Phrase</strong> — 3 words, different each day of the week
+                        <strong>Day Phrase:</strong> 3 to 12 words, one for each day of the week
+                    </li>
+                    <li class="mb-2">
+                        <i class="bi bi-key text-info me-2"></i>
+                        <strong>RSA Key:</strong> 2048, 3072, or 4096 bit PEM or printable QR code
                     </li>
                     <li class="mb-2">
                         <i class="bi bi-123 text-info me-2"></i>
-                        <strong>Static PIN</strong> — 6 digits, same every day
+                        <strong>Static PIN:</strong> 6-9 digits, same every day
                     </li>
                 </ul>
             </div>
             <div class="col-md-6">
                 <h6 class="text-primary"><i class="bi bi-2-circle me-2"></i>Security Features</h6>
                 <ul class="list-unstyled">
+                    <li class="mb-2">
+                        <i class="bi bi-shield-check text-success me-2"></i>
+                        Perfect for async communication and use on air-gapped devices
+                    </li>
                     <li class="mb-2">
                         <i class="bi bi-shield-check text-success me-2"></i>
                         Argon2id memory-hard key derivation (256MB)