anchor.diff:  [source,bash]
   ----
   pgpk -a KEYS
  -pgpv isis-1.12.2-source-release.zip.asc
  +pgpv isis-1.13.0-source-release.zip.asc
   ----
   
   or
  
positive.code: [source,bash]
  ----
  gpg –import KEYS
  gpg –verify isis-1.12.2-source-release.zip.asc
  ----
  
  
  
negative.code: [source,bash]
  ----
  pgp -ka KEYS
  pgp isis-1.13.0-source-release.zip.asc
  ----
  
  
  