title: Signature of PostgreSQL Installers (sha1, sha256, MD5 etc.)
body: <p>I cannot find any reference which clearly shows the signatures of an installer of any PostgreSQL tool in order to verify it. Even looking at the official site (<a href="https://www.postgresql.org/download" rel="nofollow noreferrer">https://www.postgresql.org/download</a>)! It feels very strange to me, but I lost at least one hour looking for them and I was not able to find anything!</p>
  <p>Does anyone know where to find those signatures (any official sha, md5 etc. will be OK for me), in general? I'd like to find those <em>before</em> using any installer!</p>