feat(intel): support ECDSA Get Public Key
To support the ECDSA feature and send the command
as a request to get the public key
Signed-off-by: Boon Khai Ng <boon.khai.ng@intel.com>
Signed-off-by: Sieu Mun Tang <sieu.mun.tang@intel.com>
Change-Id: I9d7bb5b6ab8ef7d4f3ceb21ff0068baf3175a1ac
diff --git a/plat/intel/soc/common/sip/socfpga_sip_fcs.c b/plat/intel/soc/common/sip/socfpga_sip_fcs.c
index 4f2c73d..f5bcf74 100644
--- a/plat/intel/soc/common/sip/socfpga_sip_fcs.c
+++ b/plat/intel/soc/common/sip/socfpga_sip_fcs.c
@@ -15,6 +15,7 @@
static fcs_crypto_service_aes_data fcs_aes_init_payload;
static fcs_crypto_service_data fcs_sha_get_digest_param;
static fcs_crypto_service_data fcs_sha_mac_verify_param;
+static fcs_crypto_service_data fcs_ecdsa_get_pubkey_param;
bool is_size_4_bytes_aligned(uint32_t size)
{
@@ -1016,6 +1017,72 @@
return INTEL_SIP_SMC_STATUS_OK;
}
+int intel_fcs_ecdsa_get_pubkey_init(uint32_t session_id, uint32_t context_id,
+ uint32_t key_id, uint32_t param_size,
+ uint64_t param_data, uint32_t *mbox_error)
+{
+ return intel_fcs_crypto_service_init(session_id, context_id,
+ key_id, param_size, param_data,
+ (void *) &fcs_ecdsa_get_pubkey_param,
+ mbox_error);
+}
+
+int intel_fcs_ecdsa_get_pubkey_finalize(uint32_t session_id, uint32_t context_id,
+ uint64_t dst_addr, uint32_t *dst_size,
+ uint32_t *mbox_error)
+{
+ int status;
+ int i;
+ uint32_t crypto_header;
+ uint32_t ret_size = *dst_size / MBOX_WORD_BYTE;
+ uint32_t payload[FCS_ECDSA_GET_PUBKEY_MAX_WORD_SIZE] = {0U};
+
+ if ((dst_size == NULL) || (mbox_error == NULL)) {
+ return INTEL_SIP_SMC_STATUS_REJECTED;
+ }
+
+ if (fcs_ecdsa_get_pubkey_param.session_id != session_id ||
+ fcs_ecdsa_get_pubkey_param.context_id != context_id) {
+ return INTEL_SIP_SMC_STATUS_REJECTED;
+ }
+
+ crypto_header = ((FCS_CS_FIELD_FLAG_INIT |
+ FCS_CS_FIELD_FLAG_UPDATE |
+ FCS_CS_FIELD_FLAG_FINALIZE) <<
+ FCS_CS_FIELD_FLAG_OFFSET) |
+ fcs_ecdsa_get_pubkey_param.crypto_param_size;
+ i = 0;
+ /* Prepare command payload */
+ payload[i] = session_id;
+ i++;
+ payload[i] = context_id;
+ i++;
+ payload[i] = crypto_header;
+ i++;
+ payload[i] = fcs_ecdsa_get_pubkey_param.key_id;
+ i++;
+ payload[i] = (uint32_t) fcs_ecdsa_get_pubkey_param.crypto_param &
+ INTEL_SIP_SMC_FCS_ECC_ALGO_MASK;
+ i++;
+
+ status = mailbox_send_cmd(MBOX_JOB_ID, MBOX_FCS_ECDSA_GET_PUBKEY,
+ payload, i, CMD_CASUAL,
+ (uint32_t *) dst_addr, &ret_size);
+
+ memset((void *) &fcs_ecdsa_get_pubkey_param, 0,
+ sizeof(fcs_crypto_service_data));
+
+ if (status < 0) {
+ *mbox_error = -status;
+ return INTEL_SIP_SMC_STATUS_ERROR;
+ }
+
+ *dst_size = ret_size * MBOX_WORD_BYTE;
+ flush_dcache_range(dst_addr, *dst_size);
+
+ return INTEL_SIP_SMC_STATUS_OK;
+}
+
int intel_fcs_aes_crypt_init(uint32_t session_id, uint32_t context_id,
uint32_t key_id, uint64_t param_addr,
uint32_t param_size, uint32_t *mbox_error)