[PATCH v5 04/29] spl: cypto: Bring back SPL_ versions of SHA

Simon Glass sjg at chromium.org
Sun Sep 26 03:43:17 CEST 2021


Unfortunately these were removed by mistake. This means that adding hash
support to SPL brings in all software algorithms, with a substantial
increase in code size.

The origin of the problem was renaming them to SPL_FIT_xxx and then these
were removed altogether in a later commit.

Add them back. This aligns with CONFIG_MD5, for example, which has an SPL
variant.

Signed-off-by: Simon Glass <sjg at chromium.org>
Fixes: f5bc9c25f31 ("image: Rename SPL_SHAxxx_SUPPORT to SPL_FIT_SHAxxx")
Fixes: eb5171ddec9 ("common: Remove unused CONFIG_FIT_SHAxxx selectors")
---
For now this has no effect but the next patch updates hash.c to deal with
this condition for both SPL and tools.

Changes in v5:
- Add new patch to bring back SPL_ versions of SHA

 lib/Kconfig | 43 ++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 42 insertions(+), 1 deletion(-)

diff --git a/lib/Kconfig b/lib/Kconfig
index 034af724b5d..7899e756f99 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -373,7 +373,6 @@ config SHA256
 	  The SHA256 algorithm produces a 256-bit (32-byte) hash value
 	  (digest).
 
-
 config SHA512
 	bool "Enable SHA512 support"
 	help
@@ -399,6 +398,48 @@ config SHA_HW_ACCEL
 	  hashing algorithms. This affects the 'hash' command and also the
 	  hash_lookup_algo() function.
 
+if SPL
+
+config SPL_SHA1
+	bool "Enable SHA1 support in SPL"
+	default y if SHA1
+	help
+	  This option enables support of hashing using SHA1 algorithm.
+	  The hash is calculated in software.
+	  The SHA1 algorithm produces a 160-bit (20-byte) hash value
+	  (digest).
+
+config SPL_SHA256
+	bool "Enable SHA256 support in SPL"
+	default y if SHA256
+	help
+	  This option enables support of hashing using SHA256 algorithm.
+	  The hash is calculated in software.
+	  The SHA256 algorithm produces a 256-bit (32-byte) hash value
+	  (digest).
+
+config SPL_SHA512
+	bool "Enable SHA512 support in SPL"
+	default y if SHA512
+	help
+	  This option enables support of hashing using SHA512 algorithm.
+	  The hash is calculated in software.
+	  The SHA512 algorithm produces a 512-bit (64-byte) hash value
+	  (digest).
+
+config SPL_SHA384
+	bool "Enable SHA384 support in SPL"
+	default y if SHA384
+	select SPL_SHA512
+	help
+	  This option enables support of hashing using SHA384 algorithm.
+	  The hash is calculated in software. This is also selects SHA512,
+	  because these implementations share the bulk of the code..
+	  The SHA384 algorithm produces a 384-bit (48-byte) hash value
+	  (digest).
+
+endif
+
 if SHA_HW_ACCEL
 
 config SHA512_HW_ACCEL
-- 
2.33.0.685.g46640cef36-goog



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