00-INDEX - this file. LSM.txt - description of the Linux Security Module framework. SELinux.txt - how to get started with the SELinux security enhancement. Smack.txt - documentation on the Smack Linux Security Module. Yama.txt - documentation on the Yama Linux Security Module. apparmor.txt - documentation on the AppArmor security extension. credentials.txt - documentation about credentials in Linux. keys-ecryptfs.txt - description of the encryption keys for the ecryptfs filesystem. keys-request-key.txt - description of the kernel key request service. keys-trusted-encrypted.txt - info on the Trusted and Encrypted keys in the kernel key ring service. keys.txt - description of the kernel key retention service. tomoyo.txt - documentation on the TOMOYO Linux Security Module. IMA-templates.txt - documentation on the template management mechanism for IMA.