Password-based authentication is widely used today, despite problems with security and usability.
Several password replacement schemes have been suggested that use a visual code to log in.
Using a Raspberry Pi nanocomputer and the multiOTP open source library, André Liechti showcases how to how to create an OATH-compliant authentication server at PasswordsCon Bergen 2013.
Bcrypt is a password hashing scheme based on the Blowfish block cipher.
Specific embedded devices are targeted by criminals in order to gain access or utilize for further attacks.