feat(intel): support ECDSA SHA-2 Data Signature Verification
This command support ECC based signature verification on a blob.
Supported ECC algorithm are NISP P-256, NISP P-384, Brainpool 256
and Brainpool 384.
Signed-off-by: Siew Chin Lim <elly.siew.chin.lim@intel.com>
Signed-off-by: Boon Khai Ng <boon.khai.ng@intel.com>
Signed-off-by: Sieu Mun Tang <sieu.mun.tang@intel.com>
Change-Id: I7f43d2a69bbe6693ec1bb90f32b817cf00f9f5ae
diff --git a/plat/intel/soc/common/sip/socfpga_sip_fcs.c b/plat/intel/soc/common/sip/socfpga_sip_fcs.c
index 953ba55..d6c0166 100644
--- a/plat/intel/soc/common/sip/socfpga_sip_fcs.c
+++ b/plat/intel/soc/common/sip/socfpga_sip_fcs.c
@@ -15,8 +15,9 @@
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;
static fcs_crypto_service_data fcs_sha2_data_sign_param;
+static fcs_crypto_service_data fcs_sha2_data_sig_verify_param;
+static fcs_crypto_service_data fcs_ecdsa_get_pubkey_param;
bool is_size_4_bytes_aligned(uint32_t size)
{
@@ -1101,6 +1102,102 @@
return INTEL_SIP_SMC_STATUS_OK;
}
+int intel_fcs_ecdsa_sha2_data_sig_verify_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_sha2_data_sig_verify_param,
+ mbox_error);
+}
+
+int intel_fcs_ecdsa_sha2_data_sig_verify_finalize(uint32_t session_id,
+ uint32_t context_id, uint32_t src_addr,
+ uint32_t src_size, uint64_t dst_addr,
+ uint32_t *dst_size, uint32_t data_size,
+ uint32_t *mbox_error)
+{
+ int status;
+ uint32_t i;
+ uint32_t payload[FCS_ECDSA_SHA2_DATA_SIG_VERIFY_CMD_MAX_WORD_SIZE] = {0U};
+ uint32_t resp_len = *dst_size / MBOX_WORD_BYTE;
+ uintptr_t sig_pubkey_offset;
+
+ if ((dst_size == NULL) || (mbox_error == NULL)) {
+ return INTEL_SIP_SMC_STATUS_REJECTED;
+ }
+
+ if (fcs_sha2_data_sig_verify_param.session_id != session_id ||
+ fcs_sha2_data_sig_verify_param.context_id != context_id) {
+ return INTEL_SIP_SMC_STATUS_REJECTED;
+ }
+
+ if (!is_size_4_bytes_aligned(src_size)) {
+ return INTEL_SIP_SMC_STATUS_REJECTED;
+ }
+
+ if (!is_8_bytes_aligned(data_size) ||
+ !is_8_bytes_aligned(src_addr)) {
+ return INTEL_SIP_SMC_STATUS_REJECTED;
+ }
+
+ if (!is_address_in_ddr_range(src_addr, src_size) ||
+ !is_address_in_ddr_range(dst_addr, *dst_size)) {
+ return INTEL_SIP_SMC_STATUS_REJECTED;
+ }
+
+ /* Prepare command payload */
+ /* Crypto header */
+ i = 0;
+ payload[i] = fcs_sha2_data_sig_verify_param.session_id;
+ i++;
+ payload[i] = fcs_sha2_data_sig_verify_param.context_id;
+ i++;
+
+ payload[i] = fcs_sha2_data_sig_verify_param.crypto_param_size
+ & FCS_CS_FIELD_SIZE_MASK;
+ payload[i] |= (FCS_CS_FIELD_FLAG_INIT | FCS_CS_FIELD_FLAG_UPDATE
+ | FCS_CS_FIELD_FLAG_FINALIZE)
+ << FCS_CS_FIELD_FLAG_OFFSET;
+ i++;
+ payload[i] = fcs_sha2_data_sig_verify_param.key_id;
+ i++;
+ /* Crypto parameters */
+ payload[i] = fcs_sha2_data_sig_verify_param.crypto_param
+ & INTEL_SIP_SMC_FCS_ECC_ALGO_MASK;
+ i++;
+ /* Data source address and size */
+ payload[i] = src_addr;
+ i++;
+ payload[i] = data_size;
+ i++;
+ /* Signature + Public Key Data */
+ sig_pubkey_offset = src_addr + data_size;
+ memcpy((uint8_t *) &payload[i], (uint8_t *) sig_pubkey_offset,
+ src_size - data_size);
+
+ i += (src_size - data_size) / MBOX_WORD_BYTE;
+
+ status = mailbox_send_cmd(MBOX_JOB_ID,
+ MBOX_FCS_ECDSA_SHA2_DATA_SIGN_VERIFY, payload, i,
+ CMD_CASUAL, (uint32_t *) dst_addr, &resp_len);
+
+ memset((void *) &fcs_sha2_data_sig_verify_param, 0,
+ sizeof(fcs_crypto_service_data));
+
+ if (status < 0) {
+ *mbox_error = -status;
+ return INTEL_SIP_SMC_STATUS_ERROR;
+ }
+
+ *dst_size = resp_len * MBOX_WORD_BYTE;
+ flush_dcache_range(dst_addr, *dst_size);
+
+ 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)