From: Mykyta Iziumtsev miziumtsev@infinera.com
Adds support for secp521r1 ECDSA in mkimgage --- include/u-boot/ecdsa.h | 1 + lib/ecdsa/ecdsa-libcrypto.c | 2 +- tools/image-sig-host.c | 7 +++++++ 3 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/include/u-boot/ecdsa.h b/include/u-boot/ecdsa.h index 6e0269e3ae..ea37217d86 100644 --- a/include/u-boot/ecdsa.h +++ b/include/u-boot/ecdsa.h @@ -66,5 +66,6 @@ int ecdsa_verify(struct image_sign_info *info, /** @} */
#define ECDSA256_BYTES (256 / 8) +#define ECDSA521_BYTES ((521 + 7) / 8)
#endif diff --git a/lib/ecdsa/ecdsa-libcrypto.c b/lib/ecdsa/ecdsa-libcrypto.c index d5939af2c5..6cbbdb6680 100644 --- a/lib/ecdsa/ecdsa-libcrypto.c +++ b/lib/ecdsa/ecdsa-libcrypto.c @@ -108,7 +108,7 @@ static size_t ecdsa_key_size_bytes(const EC_KEY *key) const EC_GROUP *group;
group = EC_KEY_get0_group(key); - return EC_GROUP_order_bits(group) / 8; + return (EC_GROUP_order_bits(group) + 7) / 8; }
static int read_key(struct signer *ctx, const char *key_name) diff --git a/tools/image-sig-host.c b/tools/image-sig-host.c index d0133aec4c..21b4fa5d39 100644 --- a/tools/image-sig-host.c +++ b/tools/image-sig-host.c @@ -76,6 +76,13 @@ struct crypto_algo crypto_algos[] = { .add_verify_data = ecdsa_add_verify_data, .verify = ecdsa_verify, }, + { + .name = "secp521r1", + .key_len = ECDSA521_BYTES, + .sign = ecdsa_sign, + .add_verify_data = ecdsa_add_verify_data, + .verify = ecdsa_verify, + }, };
struct padding_algo padding_algos[] = {