This commit adds ECDH algorithm to Intel QuickAssist
Technology driver.
Signed-off-by: Arek Kusztal <arkadiuszx.kusz...@intel.com>
---
drivers/crypto/qat/qat_asym.c | 94 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 94 insertions(+)
diff --git a/drivers/crypto/qat/qat_asym.c b/drivers/crypto/qat/qat_asym.c
index 374452020a..34fb3f5a45 100644
--- a/drivers/crypto/qat/qat_asym.c
+++ b/drivers/crypto/qat/qat_asym.c
@@ -760,6 +760,95 @@ ecpm_collect(struct rte_crypto_asym_op *asym_op,
}
static int
+ecdh_set_input(struct icp_qat_fw_pke_request *qat_req,
+ struct qat_asym_op_cookie *cookie,
+ const struct rte_crypto_asym_op *asym_op,
+ const struct rte_crypto_asym_xform *xform)
+{
+ struct qat_asym_function qat_function;
+ uint32_t qat_func_alignsize, func_id;
+ int curve_id;
+
+ curve_id = pick_curve(xform);
+ if (curve_id < 0) {
+ QAT_LOG(DEBUG, "Incorrect elliptic curve");
+ return -EINVAL;
+ }
+
+ qat_function = get_ecpm_function(xform);
+ func_id = qat_function.func_id;
+ if (func_id == 0) {
+ QAT_LOG(ERR, "Cannot obtain functionality id");
+ return -EINVAL;
+ }
+ qat_func_alignsize = RTE_ALIGN_CEIL(qat_function.bytesize, 8);
+
+ if (asym_op->ecdh.ke_type == RTE_CRYPTO_ASYM_KE_PUB_KEY_GENERATE) {
+ SET_PKE_LN(asym_op->ecdh.priv_key, qat_func_alignsize, 0);
+ SET_PKE_LN_EC(curve[curve_id], x, 1);
+ SET_PKE_LN_EC(curve[curve_id], y, 2);
+ } else {
+ SET_PKE_LN(asym_op->ecdh.priv_key, qat_func_alignsize, 0);
+ SET_PKE_LN(asym_op->ecdh.pub_key.x, qat_func_alignsize, 1);
+ SET_PKE_LN(asym_op->ecdh.pub_key.y, qat_func_alignsize, 2);
+ }
+ SET_PKE_LN_EC(curve[curve_id], a, 3);
+ SET_PKE_LN_EC(curve[curve_id], b, 4);
+ SET_PKE_LN_EC(curve[curve_id], p, 5);
+ SET_PKE_LN_EC(curve[curve_id], h, 6);
+
+ cookie->alg_bytesize = curve[curve_id].bytesize;
+ cookie->qat_func_alignsize = qat_func_alignsize;
+ qat_req->pke_hdr.cd_pars.func_id = func_id;
+ qat_req->input_param_count =
+ QAT_ASYM_ECPM_IN_PARAMS;
+ qat_req->output_param_count =
+ QAT_ASYM_ECPM_OUT_PARAMS;
+
+ HEXDUMP("k", cookie->input_array[0], qat_func_alignsize);
+ HEXDUMP("xG", cookie->input_array[1], qat_func_alignsize);
+ HEXDUMP("yG", cookie->input_array[2], qat_func_alignsize);
+ HEXDUMP("a", cookie->input_array[3], qat_func_alignsize);
+ HEXDUMP("b", cookie->input_array[4], qat_func_alignsize);
+ HEXDUMP("q", cookie->input_array[5], qat_func_alignsize);
+ HEXDUMP("h", cookie->input_array[6], qat_func_alignsize);
+
+ return 0;
+}
+
+static uint8_t
+ecdh_collect(struct rte_crypto_asym_op *asym_op,
+ const struct qat_asym_op_cookie *cookie,
+ const struct rte_crypto_asym_xform *xform)
+{
+ uint8_t *x, *y;
+ uint32_t alg_bytesize = cookie->alg_bytesize;
+ uint32_t qat_func_alignsize = cookie->qat_func_alignsize;
+ uint32_t ltrim = qat_func_alignsize - alg_bytesize;
+
+ if (asym_op->ecdh.ke_type == RTE_CRYPTO_ASYM_KE_PUB_KEY_GENERATE) {
+ asym_op->ecdh.pub_key.x.length = alg_bytesize;
+ asym_op->ecdh.pub_key.y.length = alg_bytesize;
+ x = asym_op->ecdh.pub_key.x.data;
+ y = asym_op->ecdh.pub_key.y.data;
+ } else {
+ asym_op->ecdh.shared_secret.x.length = alg_bytesize;
+ asym_op->ecdh.shared_secret.y.length = alg_bytesize;
+ x = asym_op->ecdh.shared_secret.x.data;
+ y = asym_op->ecdh.shared_secret.y.data;
+ }
+
+ rte_memcpy(x, &cookie->output_array[0][ltrim], alg_bytesize);
+ rte_memcpy(y, &cookie->output_array[1][ltrim], alg_bytesize);
+
+ HEXDUMP("X", cookie->output_array[0],
+ qat_func_alignsize);
+ HEXDUMP("Y", cookie->output_array[1],
+ qat_func_alignsize);
+ return RTE_CRYPTO_OP_STATUS_SUCCESS;
+}
+
+static int
asym_set_input(struct icp_qat_fw_pke_request *qat_req,
struct qat_asym_op_cookie *cookie,
const struct rte_crypto_asym_op *asym_op,
@@ -781,6 +870,9 @@ asym_set_input(struct icp_qat_fw_pke_request *qat_req,
case RTE_CRYPTO_ASYM_XFORM_ECPM:
return ecpm_set_input(qat_req, cookie,
asym_op, xform);
+ case RTE_CRYPTO_ASYM_XFORM_ECDH:
+ return ecdh_set_input(qat_req, cookie,
+ asym_op, xform);
default:
QAT_LOG(ERR, "Invalid/unsupported asymmetric crypto xform");
return -EINVAL;
@@ -867,6 +959,8 @@ qat_asym_collect_response(struct rte_crypto_op *op,
return ecdsa_collect(asym_op, cookie);
case RTE_CRYPTO_ASYM_XFORM_ECPM:
return ecpm_collect(asym_op, cookie);
+ case RTE_CRYPTO_ASYM_XFORM_ECDH:
+ return ecdh_collect(asym_op, cookie, xform);
default:
QAT_LOG(ERR, "Not supported xform type");
return RTE_CRYPTO_OP_STATUS_ERROR;
--
2.13.6
