1config EVM 2 boolean "EVM support" 3 depends on SECURITY 4 select KEYS 5 select ENCRYPTED_KEYS 6 select CRYPTO_HMAC 7 select CRYPTO_SHA1 8 default n 9 help 10 EVM protects a file's security extended attributes against 11 integrity attacks. 12 13 If you are unsure how to answer this question, answer N. 14 15config EVM_HMAC_VERSION 16 int "EVM HMAC version" 17 depends on EVM 18 default 2 19 help 20 This options adds EVM HMAC version support. 21 1 - original version 22 2 - add per filesystem unique identifier (UUID) (default) 23 24 WARNING: changing the HMAC calculation method or adding 25 additional info to the calculation, requires existing EVM 26 labeled file systems to be relabeled. 27