Mimi Zohar dbe5ad17ec evm: add Kconfig TCG_TPM dependency
Although the EVM encrypted-key should be encrypted/decrypted using a
trusted-key, a user-defined key could be used instead. When using a user-
defined key, a TCG_TPM dependency should not be required.  Unfortunately,
the encrypted-key code needs to be refactored a bit in order to remove
this dependency.

This patch adds the TCG_TPM dependency.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>,
	     Randy Dunlap <rdunlap@xenotimenet>
Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
2011-08-18 12:58:12 +10:00

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config EVM
boolean "EVM support"
depends on SECURITY && KEYS && TCG_TPM
select CRYPTO_HMAC
select CRYPTO_MD5
select CRYPTO_SHA1
select ENCRYPTED_KEYS
select TRUSTED_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.