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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 /include/image.h
parent2842c1c24269a05142802d25520e7cb9035e456c (diff)
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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 'include/image.h')
-rw-r--r--include/image.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/include/image.h b/include/image.h
index 52969aa..44b2b46 100644
--- a/include/image.h
+++ b/include/image.h
@@ -833,6 +833,7 @@ int calculate_hash(const void *data, int data_len, const char *algo,
# ifdef USE_HOSTCC
# define IMAGE_ENABLE_SIGN 1
# define IMAGE_ENABLE_VERIFY 0
+# include <openssl/evp.h>
#else
# define IMAGE_ENABLE_SIGN 0
# define IMAGE_ENABLE_VERIFY 1
@@ -872,6 +873,23 @@ struct image_region {
int size;
};
+#if IMAGE_ENABLE_VERIFY
+# include <rsa-checksum.h>
+#endif
+struct checksum_algo {
+ const char *name;
+ const int checksum_len;
+#if IMAGE_ENABLE_SIGN
+ const EVP_MD *(*calculate)(void);
+#else
+#if IMAGE_ENABLE_VERIFY
+ void (*calculate)(const struct image_region region[],
+ int region_count, uint8_t *checksum);
+ const uint8_t *rsa_padding;
+#endif
+#endif
+};
+
struct image_sig_algo {
const char *name; /* Name of algorithm */
@@ -922,6 +940,9 @@ struct image_sig_algo {
int (*verify)(struct image_sign_info *info,
const struct image_region region[], int region_count,
uint8_t *sig, uint sig_len);
+
+ /* pointer to checksum algorithm */
+ struct checksum_algo *checksum;
};
/**