sha224 does not provide enough security against collision attacks
relative to the default keys used for signing (RSA 4k & P-384). Also
sha224 never became popular, as sha256 got widely adopter ahead of
sha224 being introduced.
Signed-off-by: Dimitri John Ledkov <dimitri.led...@canonical.com>
---
kernel/module/Kconfig | 5 -----
1 file changed, 5 deletions(-)
diff --git a/kernel/module/Kconfig b/kernel/module/Kconfig
index 19a53d5e77..9d7d45525f 100644
--- a/kernel/module/Kconfig
+++ b/kernel/module/Kconfig
@@ -236,10 +236,6 @@ choice
possible to load a signed module containing the algorithm to check
the signature on that module.
-config MODULE_SIG_SHA224
- bool "Sign modules with SHA-224"
- select CRYPTO_SHA256
-
config MODULE_SIG_SHA256
bool "Sign modules with SHA-256"
select CRYPTO_SHA256
@@ -257,7 +253,6 @@ endchoice
config MODULE_SIG_HASH
string
depends on MODULE_SIG || IMA_APPRAISE_MODSIG
- default "sha224" if MODULE_SIG_SHA224
default "sha256" if MODULE_SIG_SHA256
default "sha384" if MODULE_SIG_SHA384
default "sha512" if MODULE_SIG_SHA512
--
2.34.1
