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lib: ecdsa: Add ECDSA384 support

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Add ECDSA384 algorithm support for image signing and verification.

Signed-off-by: Chia-Wei Wang <chiawei_wang@aspeedtech.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Chia-Wei Wang
2024-10-14 17:56:18 +08:00
committed by Tom Rini
parent 3794bbf9e0
commit 75068b1a2d
3 changed files with 19 additions and 3 deletions
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1
include/u-boot/ecdsa.h
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@@ -65,6 +65,7 @@ int ecdsa_verify(struct image_sign_info *info,
/** @} */ /** @} */
#define ECDSA256_BYTES (256 / 8) #define ECDSA256_BYTES (256 / 8)
#define ECDSA384_BYTES (384 / 8)
#define ECDSA521_BYTES ((521 + 7) / 8) #define ECDSA521_BYTES ((521 + 7) / 8)
#endif #endif

14
lib/ecdsa/ecdsa-verify.c
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@@ -22,8 +22,10 @@ static int ecdsa_key_size(const char *curve_name)
{ {
if (!strcmp(curve_name, "prime256v1")) if (!strcmp(curve_name, "prime256v1"))
return 256; return 256;
else else if (!strcmp(curve_name, "secp384r1"))
return 0; return 384;
return 0;
} }
static int fdt_get_key(struct ecdsa_public_key *key, const void *fdt, int node) static int fdt_get_key(struct ecdsa_public_key *key, const void *fdt, int node)
@@ -121,12 +123,18 @@ int ecdsa_verify(struct image_sign_info *info,
return ecdsa_verify_hash(dev, info, hash, sig, sig_len); return ecdsa_verify_hash(dev, info, hash, sig, sig_len);
} }
U_BOOT_CRYPTO_ALGO(ecdsa) = { U_BOOT_CRYPTO_ALGO(ecdsa256) = {
.name = "ecdsa256", .name = "ecdsa256",
.key_len = ECDSA256_BYTES, .key_len = ECDSA256_BYTES,
.verify = ecdsa_verify, .verify = ecdsa_verify,
}; };
U_BOOT_CRYPTO_ALGO(ecdsa384) = {
.name = "ecdsa384",
.key_len = ECDSA384_BYTES,
.verify = ecdsa_verify,
};
/* /*
* uclass definition for ECDSA API * uclass definition for ECDSA API
* *

7
tools/image-sig-host.c
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@@ -76,6 +76,13 @@ struct crypto_algo crypto_algos[] = {
.add_verify_data = ecdsa_add_verify_data, .add_verify_data = ecdsa_add_verify_data,
.verify = ecdsa_verify, .verify = ecdsa_verify,
}, },
{
.name = "ecdsa384",
.key_len = ECDSA384_BYTES,
.sign = ecdsa_sign,
.add_verify_data = ecdsa_add_verify_data,
.verify = ecdsa_verify,
},
{ {
.name = "secp521r1", .name = "secp521r1",
.key_len = ECDSA521_BYTES, .key_len = ECDSA521_BYTES,