Discovers the ssl ciphers supported by a site

list_ciphers.sh

#!/bin/bash

# OpenSSL requires the port number.

SERVER=my_server:443

DELAY=1
ciphers=$(openssl ciphers 'ALL:eNULL' | sed -e 's/:/ /g')

echo  Obtaining cipher list from $(openssl version).

for cipher in ${ciphers[@]}

do
    echo -n Testing $cipher...
    result=$(echo -n | openssl s_client -cipher "$cipher" -connect $SERVER 2>&1)
    if [[ "$result" =~ ":error:" ]] ; then
      error=$(echo -n $result | cut -d':' -f6)
      echo NO \($error\)
    else
      if [[ "$result" =~ "Cipher is ${cipher}" ]]  || [[ "$result" =~ "Cipher    :" ]] ; then
        echo YES
      else
        echo UNKNOWN RESPONSE
        echo $result
      fi
    fi
    sleep $DELAY
done