lib: ecdsa: Add ECDSA384 support
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>
diff --git a/include/u-boot/ecdsa.h b/include/u-boot/ecdsa.h
index 8f9f5e7..f0ac0f3 100644
--- a/include/u-boot/ecdsa.h
+++ b/include/u-boot/ecdsa.h
@@ -65,6 +65,7 @@
/** @} */
#define ECDSA256_BYTES (256 / 8)
+#define ECDSA384_BYTES (384 / 8)
#define ECDSA521_BYTES ((521 + 7) / 8)
#endif
diff --git a/lib/ecdsa/ecdsa-verify.c b/lib/ecdsa/ecdsa-verify.c
index 4d1835b..629b662 100644
--- a/lib/ecdsa/ecdsa-verify.c
+++ b/lib/ecdsa/ecdsa-verify.c
@@ -22,8 +22,10 @@
{
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 @@
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 21b4fa5..5285263 100644
--- a/tools/image-sig-host.c
+++ b/tools/image-sig-host.c
@@ -77,6 +77,13 @@
.verify = ecdsa_verify,
},
{
+ .name = "ecdsa384",
+ .key_len = ECDSA384_BYTES,
+ .sign = ecdsa_sign,
+ .add_verify_data = ecdsa_add_verify_data,
+ .verify = ecdsa_verify,
+ },
+ {
.name = "secp521r1",
.key_len = ECDSA521_BYTES,
.sign = ecdsa_sign,