The best replacement for ssl is ipsec.

The best alternatives to ssl are rated as following:
★★★★★  ipsec
★★★★★  tls
★★★★  ssh
★★★  https
★★  vpn
★★  neve
★  set
★  tsl
★  ipsec vpn
★  starttls
★  tls encryption
★  remote access
★  api
★  aes
★  non ssl
★  openssl
  tls certificate
  pki
  pgp
  tls which is better
  encryption
  private ssl
  pptp
  sso
  ev ssl
  sftp
  pptp vpn
  esp
  fs2
  l2tp
  oauth
  duende
  s/mime
  dedicated ssl
  shared ssl
  ipsec for vpn
  mod ssl
  http
  kerberos

Your alternative for ssl is not listed? Suggest!
Speaking about ssl, one probably shouldn't forget about iis.

Other search terms related to ssl and their ratings are:
★★★★★ iis
★★★★ encryption
★★★★ authentication
★★★★ apache
★★★ certificate
★★★ wordpress
★★★ client certificate
★★★ nginx
★★★ haproxy
★★ load balancer
★★ cname
★★ mirc
★★ cloudflare
★★ tomcat
★★ heroku
★★ client authentication
★★ email
★★ host headers
★ filezilla
★ yahoo mail
★ mod_jk
★ apr
★ https
★ client certificates
wsus
web server
dynamic dns
pop server
certificates
ftp
tomcat 7
citrix
You have in mind a companion for ssl and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of ssl in all years. Click on graph for more.
ssl
ipsec
tls