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- config EVM
- boolean "EVM support"
- depends on SECURITY && KEYS && (TRUSTED_KEYS=y || TRUSTED_KEYS=n)
- select CRYPTO_HMAC
- select CRYPTO_MD5
- select CRYPTO_SHA1
- select ENCRYPTED_KEYS
- default n
- help
- EVM protects a file's security extended attributes against
- integrity attacks.
- If you are unsure how to answer this question, answer N.
- config EVM_HMAC_VERSION
- int "EVM HMAC version"
- depends on EVM
- default 2
- help
- This options adds EVM HMAC version support.
- 1 - original version
- 2 - add per filesystem unique identifier (UUID) (default)
- WARNING: changing the HMAC calculation method or adding
- additional info to the calculation, requires existing EVM
- labeled file systems to be relabeled.
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