title: nmap scan service and port for ssl ciphers
body: <p>When i run the command </p>
  
  <p>nmap --script ssl-enum-ciphers hostname </p>
  
  <p>I get the output of ciphers with a grade next to it. For example : </p>
  
  <p>|     ciphers: 
  |       TLS_RSA_WITH_3DES_EDE_CBC_SHA - D
  |       TLS_RSA_WITH_AES_128_CBC_SHA  - A
  |       TLS_RSA_WITH_AES_256_CBC_SHA - A</p>
  
  <p>My question is What is A - D stand for ? I assume A being the highest and best. Is it right ? </p>
  
  <p>Thanks</p>