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rsa: add sha256,rsa4096 algorithm

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Add support for sha256,rsa4096 signatures in u-boot.

Signed-off-by: Heiko Schocher <hs@denx.de>
Acked-by: Simon Glass <sjg@chromium.org>
Cc: andreas@oetken.name
This commit is contained in:
Heiko Schocher
2014-03-03 12:19:27 +01:00
committed by Tom Rini
parent 646257d1f4
commit db1b5f3d20
6 changed files with 104 additions and 16 deletions
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1
include/image.h
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@@ -879,6 +879,7 @@ struct image_region {
struct checksum_algo {
const char *name;
const int checksum_len;
const int pad_len;
#if IMAGE_ENABLE_SIGN
const EVP_MD *(*calculate)(void);
#else

1
include/rsa-checksum.h
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@@ -12,6 +12,7 @@
#include <sha1.h>
#include <sha256.h>
extern const uint8_t padding_sha256_rsa4096[];
extern const uint8_t padding_sha256_rsa2048[];
extern const uint8_t padding_sha1_rsa2048[];

10
include/rsa.h
View File

@@ -103,4 +103,14 @@ static inline int rsa_verify(struct image_sign_info *info,
}
#endif
#define RSA2048_BYTES (2048 / 8)
#define RSA4096_BYTES (4096 / 8)
/* This is the minimum/maximum key size we support, in bits */
#define RSA_MIN_KEY_BITS 2048
#define RSA_MAX_KEY_BITS 4096
/* This is the maximum signature length that we support, in bits */
#define RSA_MAX_SIG_BITS 4096
#endif