feat(arm): ecdsa p384/p256 full key support
Add full key support for ECDSA P384 and P256.
New .S files and p384 pem file created along with new
plat_get_rotpk_info() flag ARM_ROTPK_DEVEL_FULL_DEV_ECDSA_KEY_ID.
Change-Id: I578b257eca41070bb4f4791ef429f2b8a66b1eb3
Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com>
diff --git a/include/plat/arm/common/arm_def.h b/include/plat/arm/common/arm_def.h
index 0ab0e82..719d5cf 100644
--- a/include/plat/arm/common/arm_def.h
+++ b/include/plat/arm/common/arm_def.h
@@ -25,7 +25,16 @@
#define ARM_ROTPK_HEADER_LEN 19
#define ARM_ROTPK_HASH_LEN 32
/* ARM_ROTPK_KEY_LEN includes DER header + raw key material */
+#if (ARM_ROTPK_LOCATION_ID == ARM_ROTPK_DEVEL_ECDSA_ID)
+#if TF_MBEDTLS_KEY_SIZE == 384
+#define ARM_ROTPK_KEY_LEN 120
+#else
+#define ARM_ROTPK_KEY_LEN 91
+#endif
+#else
+/* ROTPK key length for 2kB RSA-key */
#define ARM_ROTPK_KEY_LEN 294
+#endif
/* Special value used to verify platform parameters from BL2 to BL31 */
#define ARM_BL31_PLAT_PARAM_VAL ULL(0x0f1e2d3c4b5a6978)