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text.txt
text.txt

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File Encryption and Decryption

This is a Python program for encrypting and decrypting files using a symmetric key encryption technique.

Prerequisites

This program requires Python 3 to be installed on your system.

How to use

  1. Download the file_encrypt.py file and save it in your desired directory.

  2. Open a command prompt or terminal and navigate to the directory where file_encrypt.py is saved.

  3. To encrypt a file, run the program and select option 1 from the menu. Enter the name of the file (including the file extension) you want to encrypt when prompted.

  4. The program will generate a random 16-byte key and use it to encrypt the file using the XOR encryption technique. A new file will be created with the name "CC-[original_filename]" which contains the encrypted data.

  5. The program will display the encryption key in hexadecimal format. Make sure to save this key as you will need it to decrypt the file.

  6. To decrypt a file, run the program and select option 2 from the menu. Enter the name of the encrypted file (including the file extension) when prompted.

  7. Enter the encryption key (in hexadecimal format) that was displayed when the file was encrypted.

  8. The program will use the same key to decrypt the file and overwrite the original encrypted file with the decrypted data.

  9. To exit the program, select option 3 from the menu.

Security Considerations

This program uses a simple symmetric key encryption technique that is not suitable for encrypting sensitive data. The encryption key is displayed in hexadecimal format which can easily be intercepted if not transmitted securely. As such, this program is only suitable for encrypting non-sensitive data or for educational purposes.

About

This is a Python program for encrypting and decrypting files using a symmetric key encryption technique.

Topics

cryptographypython

Resources

Readme
Activity

Stars

2 stars

Watchers

1 watching

Forks

0 forks
Report repository

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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File Encryption and Decryption
This is a Python program for encrypting and decrypting files using a symmetric key encryption technique.
Prerequisites
This program requires Python 3 to be installed on your system.
How to use
  1. Download the file_encrypt.py file and save it in your desired directory.
  2. Open a command prompt or terminal and navigate to the directory where file_encrypt.py is saved.
  3. To encrypt a file, run the program and select option 1 from the menu. Enter the name of the file (including the file extension) you want to encrypt when prompted.
  4. The program will generate a random 16-byte key and use it to encrypt the file using the XOR encryption technique. A new file will be created with the name "CC-[original_filename]" which contains the encrypted data.
  5. The program will display the encryption key in hexadecimal format. Make sure to save this key as you will need it to decrypt the file.
  6. To decrypt a file, run the program and select option 2 from the menu. Enter the name of the encrypted file (including the file extension) when prompted.
  7. Enter the encryption key (in hexadecimal format) that was displayed when the file was encrypted.
  8. The program will use the same key to decrypt the file and overwrite the original encrypted file with the decrypted data.
  9. To exit the program, select option 3 from the menu.
Security Considerations
This program uses a simple symmetric key encryption technique that is not suitable for encrypting sensitive data. The encryption key is displayed in hexadecimal format which can easily be intercepted if not transmitted securely. As such, this program is only suitable for encrypting non-sensitive data or for educational purposes.
About
This is a Python program for encrypting and decrypting files using a symmetric key encryption technique.
Topics
cryptographypython
Resources
Readme
Activity
Stars
2 stars
Watchers
1 watching
Forks
0 forks
Report repository
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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Repository files navigation
File Encryption and Decryption
This is a Python program for encrypting and decrypting files using a symmetric key encryption technique.
Prerequisites
This program requires Python 3 to be installed on your system.
How to use
  1. Download the file_encrypt.py file and save it in your desired directory.
  2. Open a command prompt or terminal and navigate to the directory where file_encrypt.py is saved.
  3. To encrypt a file, run the program and select option 1 from the menu. Enter the name of the file (including the file extension) you want to encrypt when prompted.
  4. The program will generate a random 16-byte key and use it to encrypt the file using the XOR encryption technique. A new file will be created with the name "CC-[original_filename]" which contains the encrypted data.
  5. The program will display the encryption key in hexadecimal format. Make sure to save this key as you will need it to decrypt the file.
  6. To decrypt a file, run the program and select option 2 from the menu. Enter the name of the encrypted file (including the file extension) when prompted.
  7. Enter the encryption key (in hexadecimal format) that was displayed when the file was encrypted.
  8. The program will use the same key to decrypt the file and overwrite the original encrypted file with the decrypted data.
  9. To exit the program, select option 3 from the menu.
Security Considerations
This program uses a simple symmetric key encryption technique that is not suitable for encrypting sensitive data. The encryption key is displayed in hexadecimal format which can easily be intercepted if not transmitted securely. As such, this program is only suitable for encrypting non-sensitive data or for educational purposes.
About
This is a Python program for encrypting and decrypting files using a symmetric key encryption technique.
Topics
cryptographypython
Resources
Readme
Activity
Stars
2 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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Repository files navigation
File Encryption and Decryption
This is a Python program for encrypting and decrypting files using a symmetric key encryption technique.
Prerequisites
This program requires Python 3 to be installed on your system.
How to use
  1. Download the file_encrypt.py file and save it in your desired directory.
  2. Open a command prompt or terminal and navigate to the directory where file_encrypt.py is saved.
  3. To encrypt a file, run the program and select option 1 from the menu. Enter the name of the file (including the file extension) you want to encrypt when prompted.
  4. The program will generate a random 16-byte key and use it to encrypt the file using the XOR encryption technique. A new file will be created with the name "CC-[original_filename]" which contains the encrypted data.
  5. The program will display the encryption key in hexadecimal format. Make sure to save this key as you will need it to decrypt the file.
  6. To decrypt a file, run the program and select option 2 from the menu. Enter the name of the encrypted file (including the file extension) when prompted.
  7. Enter the encryption key (in hexadecimal format) that was displayed when the file was encrypted.
  8. The program will use the same key to decrypt the file and overwrite the original encrypted file with the decrypted data.
  9. To exit the program, select option 3 from the menu.
Security Considerations
This program uses a simple symmetric key encryption technique that is not suitable for encrypting sensitive data. The encryption key is displayed in hexadecimal format which can easily be intercepted if not transmitted securely. As such, this program is only suitable for encrypting non-sensitive data or for educational purposes.
About
This is a Python program for encrypting and decrypting files using a symmetric key encryption technique.
Topics
cryptographypython
Resources
Readme
Activity
Stars
2 stars
Watchers
1 watching
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0 forks
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

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file_encrypt.py
image.png
image.png
text.txt
text.txt
Repository files navigation
File Encryption and Decryption
This is a Python program for encrypting and decrypting files using a symmetric key encryption technique.
Prerequisites
This program requires Python 3 to be installed on your system.
How to use
  1. Download the file_encrypt.py file and save it in your desired directory.
  2. Open a command prompt or terminal and navigate to the directory where file_encrypt.py is saved.
  3. To encrypt a file, run the program and select option 1 from the menu. Enter the name of the file (including the file extension) you want to encrypt when prompted.
  4. The program will generate a random 16-byte key and use it to encrypt the file using the XOR encryption technique. A new file will be created with the name "CC-[original_filename]" which contains the encrypted data.
  5. The program will display the encryption key in hexadecimal format. Make sure to save this key as you will need it to decrypt the file.
  6. To decrypt a file, run the program and select option 2 from the menu. Enter the name of the encrypted file (including the file extension) when prompted.
  7. Enter the encryption key (in hexadecimal format) that was displayed when the file was encrypted.
  8. The program will use the same key to decrypt the file and overwrite the original encrypted file with the decrypted data.
  9. To exit the program, select option 3 from the menu.
Security Considerations
This program uses a simple symmetric key encryption technique that is not suitable for encrypting sensitive data. The encryption key is displayed in hexadecimal format which can easily be intercepted if not transmitted securely. As such, this program is only suitable for encrypting non-sensitive data or for educational purposes.
About
This is a Python program for encrypting and decrypting files using a symmetric key encryption technique.
Topics
cryptographypython
Resources
Readme
Activity
Stars
2 stars
Watchers
1 watching
Forks
0 forks
Report repository
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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file_encrypt.py
image.png
image.png
text.txt
text.txt
Repository files navigation
File Encryption and Decryption
This is a Python program for encrypting and decrypting files using a symmetric key encryption technique.
Prerequisites
This program requires Python 3 to be installed on your system.
How to use
  1. Download the file_encrypt.py file and save it in your desired directory.
  2. Open a command prompt or terminal and navigate to the directory where file_encrypt.py is saved.
  3. To encrypt a file, run the program and select option 1 from the menu. Enter the name of the file (including the file extension) you want to encrypt when prompted.
  4. The program will generate a random 16-byte key and use it to encrypt the file using the XOR encryption technique. A new file will be created with the name "CC-[original_filename]" which contains the encrypted data.
  5. The program will display the encryption key in hexadecimal format. Make sure to save this key as you will need it to decrypt the file.
  6. To decrypt a file, run the program and select option 2 from the menu. Enter the name of the encrypted file (including the file extension) when prompted.
  7. Enter the encryption key (in hexadecimal format) that was displayed when the file was encrypted.
  8. The program will use the same key to decrypt the file and overwrite the original encrypted file with the decrypted data.
  9. To exit the program, select option 3 from the menu.
Security Considerations
This program uses a simple symmetric key encryption technique that is not suitable for encrypting sensitive data. The encryption key is displayed in hexadecimal format which can easily be intercepted if not transmitted securely. As such, this program is only suitable for encrypting non-sensitive data or for educational purposes.
About
This is a Python program for encrypting and decrypting files using a symmetric key encryption technique.
Topics
cryptographypython
Resources
Readme
Activity
Stars
2 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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file_encrypt.py
image.png
image.png
text.txt
text.txt
Repository files navigation
File Encryption and Decryption
This is a Python program for encrypting and decrypting files using a symmetric key encryption technique.
Prerequisites
This program requires Python 3 to be installed on your system.
How to use
  1. Download the file_encrypt.py file and save it in your desired directory.
  2. Open a command prompt or terminal and navigate to the directory where file_encrypt.py is saved.
  3. To encrypt a file, run the program and select option 1 from the menu. Enter the name of the file (including the file extension) you want to encrypt when prompted.
  4. The program will generate a random 16-byte key and use it to encrypt the file using the XOR encryption technique. A new file will be created with the name "CC-[original_filename]" which contains the encrypted data.
  5. The program will display the encryption key in hexadecimal format. Make sure to save this key as you will need it to decrypt the file.
  6. To decrypt a file, run the program and select option 2 from the menu. Enter the name of the encrypted file (including the file extension) when prompted.
  7. Enter the encryption key (in hexadecimal format) that was displayed when the file was encrypted.
  8. The program will use the same key to decrypt the file and overwrite the original encrypted file with the decrypted data.
  9. To exit the program, select option 3 from the menu.
Security Considerations
This program uses a simple symmetric key encryption technique that is not suitable for encrypting sensitive data. The encryption key is displayed in hexadecimal format which can easily be intercepted if not transmitted securely. As such, this program is only suitable for encrypting non-sensitive data or for educational purposes.
About
This is a Python program for encrypting and decrypting files using a symmetric key encryption technique.
Topics
cryptographypython
Resources
Readme
Activity
Stars
2 stars
Watchers
1 watching
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0 forks
Report repository
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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File Encryption and Decryption
This is a Python program for encrypting and decrypting files using a symmetric key encryption technique.
Prerequisites
This program requires Python 3 to be installed on your system.
How to use
  1. Download the file_encrypt.py file and save it in your desired directory.
  2. Open a command prompt or terminal and navigate to the directory where file_encrypt.py is saved.
  3. To encrypt a file, run the program and select option 1 from the menu. Enter the name of the file (including the file extension) you want to encrypt when prompted.
  4. The program will generate a random 16-byte key and use it to encrypt the file using the XOR encryption technique. A new file will be created with the name "CC-[original_filename]" which contains the encrypted data.
  5. The program will display the encryption key in hexadecimal format. Make sure to save this key as you will need it to decrypt the file.
  6. To decrypt a file, run the program and select option 2 from the menu. Enter the name of the encrypted file (including the file extension) when prompted.
  7. Enter the encryption key (in hexadecimal format) that was displayed when the file was encrypted.
  8. The program will use the same key to decrypt the file and overwrite the original encrypted file with the decrypted data.
  9. To exit the program, select option 3 from the menu.
Security Considerations
This program uses a simple symmetric key encryption technique that is not suitable for encrypting sensitive data. The encryption key is displayed in hexadecimal format which can easily be intercepted if not transmitted securely. As such, this program is only suitable for encrypting non-sensitive data or for educational purposes.
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This is a Python program for encrypting and decrypting files using a symmetric key encryption technique.
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cryptographypython
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