diff mbox series

[v4,5/7] cryptodev: add RNG capability in EC based xform

Message ID 8d0cf687890fe128aa4eeaa50d03f7dd8b7fe142.1696859505.git.gmuthukrishn@marvell.com (mailing list archive)
State Accepted, archived
Delegated to: akhil goyal
Headers
Series cryptodev: support digest message in SM2 |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Gowrishankar Muthukrishnan Oct. 9, 2023, 1:54 p.m. UTC 
  Elliptic curve based asymmetric operations use cryptographically
secure random number in its computation. If PMD supports RNG
for such ops, the application could skip computing on its own.
This patch adds new field in asymmetric capability to declare
this capability.

Signed-off-by: Gowrishankar Muthukrishnan <gmuthukrishn@marvell.com>
Acked-by: Arkadiusz Kusztal <arkadiuszx.kusztal@intel.com>
---
 drivers/crypto/openssl/rte_openssl_pmd_ops.c | 2 ++
 lib/cryptodev/rte_cryptodev.h                | 6 ++++++
 2 files changed, 8 insertions(+)
diff mbox series

Patch

diff --git a/drivers/crypto/openssl/rte_openssl_pmd_ops.c b/drivers/crypto/openssl/rte_openssl_pmd_ops.c
index 083ad63360..2862c294a9 100644
--- a/drivers/crypto/openssl/rte_openssl_pmd_ops.c
+++ b/drivers/crypto/openssl/rte_openssl_pmd_ops.c
@@ -604,6 +604,8 @@  static const struct rte_cryptodev_capabilities openssl_pmd_capabilities[] = {
 				 (1 << RTE_CRYPTO_ASYM_OP_VERIFY) |
 				 (1 << RTE_CRYPTO_ASYM_OP_ENCRYPT) |
 				 (1 << RTE_CRYPTO_ASYM_OP_DECRYPT)),
+				{.internal_rng = 1
+				}
 			}
 		}
 		}
diff --git a/lib/cryptodev/rte_cryptodev.h b/lib/cryptodev/rte_cryptodev.h
index 3a1b4dc501..6c8f532797 100644
--- a/lib/cryptodev/rte_cryptodev.h
+++ b/lib/cryptodev/rte_cryptodev.h
@@ -181,6 +181,12 @@  struct rte_cryptodev_asymmetric_xform_capability {
 		/**< Range of modulus length supported by modulus based xform.
 		 * Value 0 mean implementation default
 		 */
+
+		uint8_t internal_rng;
+		/**< Availability of random number generator for Elliptic curve based xform.
+		 * Value 0 means unavailable, and application should pass the required
+		 * random value. Otherwise, PMD would internally compute the random number.
+		 */
 	};
 
 	uint64_t hash_algos;