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authorHeiko Schocher <hs@denx.de>2014-03-03 12:19:26 +0100
committerTom Rini <trini@ti.com>2014-03-21 16:39:34 -0400
commit646257d1f4004855d486024527a4784bf57c4c4d (patch)
treea16c9627f823bcb68606b621fe9ff2fe493f90ed /common/image-sig.c
parent2842c1c24269a05142802d25520e7cb9035e456c (diff)
rsa: add sha256-rsa2048 algorithm
based on patch from andreas@oetken.name: http://patchwork.ozlabs.org/patch/294318/ commit message: I currently need support for rsa-sha256 signatures in u-boot and found out that the code for signatures is not very generic. Thus adding of different hash-algorithms for rsa-signatures is not easy to do without copy-pasting the rsa-code. I attached a patch for how I think it could be better and included support for rsa-sha256. This is a fast first shot. aditionally work: - removed checkpatch warnings - removed compiler warnings - rebased against current head Signed-off-by: Heiko Schocher <hs@denx.de> Cc: andreas@oetken.name Cc: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'common/image-sig.c')
-rw-r--r--common/image-sig.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/common/image-sig.c b/common/image-sig.c
index 973b06d505..8b6f49bb38 100644
--- a/common/image-sig.c
+++ b/common/image-sig.c
@@ -14,15 +14,53 @@ DECLARE_GLOBAL_DATA_PTR;
#endif /* !USE_HOSTCC*/
#include <image.h>
#include <rsa.h>
+#include <rsa-checksum.h>
#define IMAGE_MAX_HASHED_NODES 100
+#ifdef USE_HOSTCC
+__attribute__((weak)) void *get_blob(void)
+{
+ return NULL;
+}
+#endif
+
+struct checksum_algo checksum_algos[] = {
+ {
+ "sha1",
+ SHA1_SUM_LEN,
+#if IMAGE_ENABLE_SIGN
+ EVP_sha1,
+#else
+ sha1_calculate,
+ padding_sha1_rsa2048,
+#endif
+ },
+ {
+ "sha256",
+ SHA256_SUM_LEN,
+#if IMAGE_ENABLE_SIGN
+ EVP_sha256,
+#else
+ sha256_calculate,
+ padding_sha256_rsa2048,
+#endif
+ }
+};
struct image_sig_algo image_sig_algos[] = {
{
"sha1,rsa2048",
rsa_sign,
rsa_add_verify_data,
rsa_verify,
+ &checksum_algos[0],
+ },
+ {
+ "sha256,rsa2048",
+ rsa_sign,
+ rsa_add_verify_data,
+ rsa_verify,
+ &checksum_algos[1],
}
};