[dpdk-dev] [PATCH v3 11/11] test: add RSA PKCS1_5 padding case when no padding selected

[Arek Kusztal <arkadiuszx.kusztal@intel.com>]

This patch adds an example how to use padding none option with RSA.

Signed-off-by: Arek Kusztal <arkadiuszx.kusztal@intel.com>
---
 app/test/test_cryptodev_asym.c | 46 +++++++++++++++++++++++++++++++++---------
 1 file changed, 37 insertions(+), 9 deletions(-)

diff --git a/app/test/test_cryptodev_asym.c b/app/test/test_cryptodev_asym.c
index 0e1277b..fa5ddab 100644
--- a/app/test/test_cryptodev_asym.c
+++ b/app/test/test_cryptodev_asym.c
@@ -157,13 +157,15 @@ queue_ops_rsa_sign_verify(struct rte_cryptodev_asym_session *sess)
 }
 
 static int
-queue_ops_rsa_enc_dec(struct rte_cryptodev_asym_session *sess)
+queue_ops_rsa_enc_dec(struct rte_cryptodev_asym_session *sess,
+		enum rte_crypto_rsa_padding_type padding)
 {
 	struct crypto_testsuite_params *ts_params = &testsuite_params;
 	struct rte_mempool *op_mpool = ts_params->op_mpool;
 	uint8_t dev_id = ts_params->valid_devs[0];
 	struct rte_crypto_op *op, *result_op;
 	struct rte_crypto_asym_op *asym_op;
+	uint8_t input_buf[TEST_DATA_SIZE] = {0};
 	uint8_t cipher_buf[TEST_DATA_SIZE] = {0};
 	int ret, status = TEST_SUCCESS;
 
@@ -180,11 +182,19 @@ queue_ops_rsa_enc_dec(struct rte_cryptodev_asym_session *sess)
 	/* Compute encryption on the test vector */
 	asym_op->rsa.op_type = RTE_CRYPTO_ASYM_OP_ENCRYPT;
 
-	asym_op->rsa.message.data = rsaplaintext.data;
 	asym_op->rsa.cipher.data = cipher_buf;
 	asym_op->rsa.cipher.length = 0;
-	asym_op->rsa.message.length = rsaplaintext.len;
-	asym_op->rsa.pad = RTE_CRYPTO_RSA_PADDING_PKCS1_5;
+	asym_op->rsa.pad = padding;
+
+	if (padding == RTE_CRYPTO_RSA_PADDING_NONE) {
+		rsa_simulate_pkcs1_5_padding(0, input_buf, rsa_xform.rsa.n.length,
+				rsaplaintext.data, rsaplaintext.len);
+		asym_op->rsa.message.length = rsa_xform.rsa.n.length;
+		asym_op->rsa.message.data = input_buf;
+	} else if (padding == RTE_CRYPTO_RSA_PADDING_PKCS1_5) {
+		asym_op->rsa.message.data = rsaplaintext.data;
+		asym_op->rsa.message.length = rsaplaintext.len;
+	}
 
 	debug_hexdump(stdout, "message", asym_op->rsa.message.data,
 		      asym_op->rsa.message.length);
@@ -215,7 +225,7 @@ queue_ops_rsa_enc_dec(struct rte_cryptodev_asym_session *sess)
 	/* Use the resulted output as decryption Input vector*/
 	asym_op = result_op->asym;
 	asym_op->rsa.op_type = RTE_CRYPTO_ASYM_OP_DECRYPT;
-	asym_op->rsa.pad = RTE_CRYPTO_RSA_PADDING_PKCS1_5;
+	asym_op->rsa.pad = padding;
 
 	/* Process crypto operation */
 	if (rte_cryptodev_enqueue_burst(dev_id, 0, &op, 1) != 1) {
@@ -233,6 +243,13 @@ queue_ops_rsa_enc_dec(struct rte_cryptodev_asym_session *sess)
 		goto error_exit;
 	}
 	status = TEST_SUCCESS;
+
+	if (padding == RTE_CRYPTO_RSA_PADDING_NONE) {
+		result_op->asym->rsa.message.length =
+			rsa_simulate_strip_pkcs1_5_padding(result_op->asym->rsa.message.data,
+			rsa_xform.rsa.n.length);
+	}
+
 	ret = rsa_verify(&rsaplaintext, result_op);
 	if (ret)
 		status = TEST_FAILED;
@@ -562,7 +579,7 @@ test_rsa_sign_verify(void)
 }
 
 static int
-test_rsa_enc_dec(void)
+test_rsa_enc_dec(enum rte_crypto_rsa_padding_type padding)
 {
 	struct crypto_testsuite_params *ts_params = &testsuite_params;
 	struct rte_mempool *sess_mpool = ts_params->session_mpool;
@@ -597,7 +614,7 @@ test_rsa_enc_dec(void)
 		goto error_exit;
 	}
 
-	status = queue_ops_rsa_enc_dec(sess);
+	status = queue_ops_rsa_enc_dec(sess, padding);
 
 error_exit:
 
@@ -610,6 +627,16 @@ test_rsa_enc_dec(void)
 }
 
 static int
+test_rsa_enc_dec_padding_none(void) {
+	return test_rsa_enc_dec(RTE_CRYPTO_RSA_PADDING_NONE);
+}
+
+static int
+test_rsa_enc_dec_padding_pkcs_1(void) {
+	return test_rsa_enc_dec(RTE_CRYPTO_RSA_PADDING_PKCS1_5);
+}
+
+static int
 test_rsa_sign_verify_crt(void)
 {
 	struct crypto_testsuite_params *ts_params = &testsuite_params;
@@ -692,7 +719,7 @@ test_rsa_enc_dec_crt(void)
 		status = TEST_FAILED;
 		goto error_exit;
 	}
-	status = queue_ops_rsa_enc_dec(sess);
+	status = queue_ops_rsa_enc_dec(sess, RTE_CRYPTO_RSA_PADDING_PKCS1_5);
 
 error_exit:
 
@@ -1767,7 +1794,8 @@ static struct unit_test_suite cryptodev_openssl_asym_testsuite  = {
 		TEST_CASE_ST(ut_setup, ut_teardown, test_capability),
 		TEST_CASE_ST(ut_setup, ut_teardown, test_dsa),
 		TEST_CASE_ST(ut_setup, ut_teardown, test_dh_keygenration),
-		TEST_CASE_ST(ut_setup, ut_teardown, test_rsa_enc_dec),
+		TEST_CASE_ST(ut_setup, ut_teardown, test_rsa_enc_dec_padding_none),
+		TEST_CASE_ST(ut_setup, ut_teardown, test_rsa_enc_dec_padding_pkcs_1),
 		TEST_CASE_ST(ut_setup, ut_teardown, test_rsa_sign_verify),
 		TEST_CASE_ST(ut_setup, ut_teardown, test_rsa_enc_dec_crt),
 		TEST_CASE_ST(ut_setup, ut_teardown, test_rsa_sign_verify_crt),
-- 
2.1.0