title: How to store a simple key string inside Java KeyStore?
body: <p>I have a file on my FS (a S3 AWS key) that contains a string that is a key I use for encryption process.</p>
  
  <p>I would like to move it a Java KeyStore.</p>
  
  <p>I know how to import a certificate into a KeyStore with keytool but I can't find the way to import a simple string key.</p>
  
  <p>Can you help?</p>