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Bluetooth: move ecdh allocation outside of ecdh_helper

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Before this change, a new crypto tfm was allocated, each time,
for both key generation and shared secret computation.

Allocate a single tfm for both cases.

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Tudor Ambarus
2017-09-28 17:14:51 +03:00
committed by Marcel Holtmann
parent 24a3a32a99
commit 47eb2ac809
4 changed files with 87 additions and 50 deletions
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8
net/bluetooth/ecdh_helper.h
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@@ -20,8 +20,10 @@
* COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
* SOFTWARE IS DISCLAIMED.
*/
#include <crypto/kpp.h>
#include <linux/types.h>
bool compute_ecdh_secret(const u8 pub_a[64], const u8 priv_b[32],
u8 secret[32]);
bool generate_ecdh_keys(u8 public_key[64], u8 private_key[32]);
bool compute_ecdh_secret(struct crypto_kpp *tfm, const u8 pub_a[64],
const u8 priv_b[32], u8 secret[32]);
bool generate_ecdh_keys(struct crypto_kpp *tfm, u8 public_key[64],
u8 private_key[32]);