[dpdk-dev] [PATCH v2 1/2] crypto/openssl: changes for RSA verify operation
Akash Saxena
akash.saxena at caviumnetworks.com
Thu Oct 25 12:00:56 CEST 2018
Add tmp buffer to pass to OpenSSL sign API and memcmp output with
original plain text to verify signature match.
Set op->status = RTE_CRYPO_OP_STATUS_ERROR on signature mismatch.
Signed-off-by: Ayuj Verma <ayuj.verma at caviumnetworks.com>
Signed-off-by: Akash Saxena <akash.saxena at caviumnetworks.com>
Signed-off-by: Shally Verma <shally.verma at caviumnetworks.com>
---
drivers/crypto/openssl/rte_openssl_pmd.c | 22 +++++++++++++++-------
1 file changed, 15 insertions(+), 7 deletions(-)
diff --git a/drivers/crypto/openssl/rte_openssl_pmd.c b/drivers/crypto/openssl/rte_openssl_pmd.c
index 003116d..11ea0d1 100644
--- a/drivers/crypto/openssl/rte_openssl_pmd.c
+++ b/drivers/crypto/openssl/rte_openssl_pmd.c
@@ -1843,6 +1843,9 @@ process_openssl_rsa_op(struct rte_crypto_op *cop,
struct rte_crypto_asym_op *op = cop->asym;
RSA *rsa = sess->u.r.rsa;
uint32_t pad = (op->rsa.pad);
+ uint8_t *tmp;
+
+ cop->status = RTE_CRYPTO_OP_STATUS_SUCCESS;
switch (pad) {
case RTE_CRYPTO_RSA_PKCS1_V1_5_BT0:
@@ -1895,9 +1898,15 @@ process_openssl_rsa_op(struct rte_crypto_op *cop,
break;
case RTE_CRYPTO_ASYM_OP_VERIFY:
+ tmp = rte_malloc(NULL, op->rsa.sign.length, 0);
+ if (tmp == NULL) {
+ OPENSSL_LOG(ERR, "Memory allocation failed");
+ cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
+ break;
+ }
ret = RSA_public_decrypt(op->rsa.sign.length,
op->rsa.sign.data,
- op->rsa.sign.data,
+ tmp,
rsa,
pad);
@@ -1905,13 +1914,12 @@ process_openssl_rsa_op(struct rte_crypto_op *cop,
"Length of public_decrypt %d "
"length of message %zd\n",
ret, op->rsa.message.length);
-
- if (memcmp(op->rsa.sign.data, op->rsa.message.data,
- op->rsa.message.length)) {
- OPENSSL_LOG(ERR,
- "RSA sign Verification failed");
- return -1;
+ if ((ret <= 0) || (memcmp(tmp, op->rsa.message.data,
+ op->rsa.message.length))) {
+ OPENSSL_LOG(ERR, "RSA sign Verification failed");
+ cop->status = RTE_CRYPTO_OP_STATUS_ERROR;
}
+ rte_free(tmp);
break;
default:
--
2.7.4
More information about the dev
mailing list