title: Google Chrome - Alphanumeric hashes to identify extensions
body: <p>Google Chrome is using alpha numeric hashes as identifiers for the Chrome extensions. For eg. "ajpgkpeckebdhofmmjfgcjjiiejpodla" is the identifier for <a href="https://chrome.google.com/extensions/detail/ajpgkpeckebdhofmmjfgcjjiiejpodla" rel="noreferrer">XMarks</a> Bookmark Sync extension.</p>
  
  <p>Which algorithm is in use here to generate such strings? How are they ensuring uniqueness? </p>