TEA, XTEA and XETA

modulename: tea.ko

configname: CONFIG_CRYPTO_TEA

Linux Kernel Configuration
└─>Cryptographic API
└─>Block ciphers
└─>TEA, XTEA and XETA
In linux kernel since version 2.6.12  
TEA (Tiny Encryption Algorithm) cipher algorithms

Tiny Encryption Algorithm is a simple cipher that uses
many rounds for security. It is very fast and uses
little memory.

Xtendend Tiny Encryption Algorithm is a modification to
the TEA algorithm to address a potential key weakness
in the TEA algorithm.

Xtendend Encryption Tiny Algorithm is a mis-implementation
of the XTEA algorithm for compatibility purposes.

source code: