Similar to DNSCrypt

Endpoint Handlespace Redundancy Protocol

Fiber Distributed Data Interface

File eXchange Protocol

Finger (protocol)

Gemini (protocol)

HMAC-based one-time password

IMessage

Interior gateway protocol

Interior Gateway Routing Protocol

Internet Protocol Control Protocol

InterPlanetary File System

Internet Storage Name Service

Lightweight Directory Access Protocol

Link Control Protocol

LISTSERV

Micro Transport Protocol

NAT-T

NETCONF

Network Control Protocol (PPP)

Network Security Services

OAuth

Point-to-Point Tunneling Protocol

Quoted-printable

Real-Time Media Flow Protocol

Real-Time Messaging Protocol

Berkeley r-commands

Serial Line Internet Protocol