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 --- include/u-boot/ecdsa.h | 1 + lib/ecdsa/ecdsa-verify.c | 14 +++++++++++--- tools/image-sig-host.c | 7 +++++++ 3 files changed, 19 insertions(+), 3 deletions(-)
diff --git a/include/u-boot/ecdsa.h b/include/u-boot/ecdsa.h index 53490c6b287..0d4df9887e6 100644 --- a/include/u-boot/ecdsa.h +++ b/include/u-boot/ecdsa.h @@ -65,5 +65,6 @@ int ecdsa_verify(struct image_sign_info *info, /** @} */
#define ECDSA256_BYTES (256 / 8) +#define ECDSA384_BYTES (384 / 8)
#endif diff --git a/lib/ecdsa/ecdsa-verify.c b/lib/ecdsa/ecdsa-verify.c index 4d1835b598a..629b662cf6c 100644 --- a/lib/ecdsa/ecdsa-verify.c +++ b/lib/ecdsa/ecdsa-verify.c @@ -22,8 +22,10 @@ static int ecdsa_key_size(const char *curve_name) { if (!strcmp(curve_name, "prime256v1")) return 256; - else - return 0; + else if (!strcmp(curve_name, "secp384r1")) + return 384; + + return 0; }
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); }
-U_BOOT_CRYPTO_ALGO(ecdsa) = { +U_BOOT_CRYPTO_ALGO(ecdsa256) = { .name = "ecdsa256", .key_len = ECDSA256_BYTES, .verify = ecdsa_verify, };
+U_BOOT_CRYPTO_ALGO(ecdsa384) = { + .name = "ecdsa384", + .key_len = ECDSA384_BYTES, + .verify = ecdsa_verify, +}; + /* * uclass definition for ECDSA API * diff --git a/tools/image-sig-host.c b/tools/image-sig-host.c index d0133aec4c8..22253502065 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 = "ecdsa384", + .key_len = ECDSA384_BYTES, + .sign = ecdsa_sign, + .add_verify_data = ecdsa_add_verify_data, + .verify = ecdsa_verify, + }, };
struct padding_algo padding_algos[] = {