Cipherbox is an open source project distributed under the MIT license that utilizes six encryption algorithms, and it's also a vault that's locked with four RFID cards, your username, and password. Not to mention that several people can use it without interfering with one another (I guess you can also turn it into service).
Cipherbox V1.0 consists of three microcontrollers while the Cipherbox V2.0 consists of four microcontrollers.