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

Simon Glass
2021-09-26T01:44:23Z

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@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