Secure Hypertext Transfer Protocol (S-HTTP)
An alternative to HTTPS is the Secure Hypertext Transport Protocol developed to support connectivity for banking transactions and other secure web communications.
Secure/Multipurpose Internet Mail Extensions (S/MIME)
An Internet protocol governed by RFC 2633 and used to secure email communications through encryption and digital signatures for authentication. It generally works with PKI to validate digital signatures and related digital certificates.
Secure Shell (SSH)
A protocol designed to support secure remote login, along with secure access to other services across an unsecure network. SSH includes a secure transport layer protocol that provides server authentication, confidentiality (encryption), ...