#include <linux/ip.h>
#include <net/ipv6.h>
#include <linux/netdevice.h>
+#include <crypto/aes.h>
#include "chcr_ktls.h"
static LIST_HEAD(uld_ctx_list);
unsigned char ghash_h[TLS_CIPHER_AES_GCM_256_TAG_SIZE];
struct tls12_crypto_info_aes_gcm_128 *info_128_gcm;
struct ktls_key_ctx *kctx = &tx_info->key_ctx;
- struct crypto_cipher *cipher;
+ struct crypto_aes_ctx aes_ctx;
unsigned char *key, *salt;
switch (crypto_info->cipher_type) {
/* Calculate the H = CIPH(K, 0 repeated 16 times).
* It will go in key context
*/
- cipher = crypto_alloc_cipher("aes", 0, 0);
- if (IS_ERR(cipher)) {
- ret = -ENOMEM;
- goto out;
- }
- ret = crypto_cipher_setkey(cipher, key, keylen);
+ ret = aes_expandkey(&aes_ctx, key, keylen);
if (ret)
- goto out1;
+ goto out;
memset(ghash_h, 0, ghash_size);
- crypto_cipher_encrypt_one(cipher, ghash_h, ghash_h);
+ aes_encrypt(&aes_ctx, ghash_h, ghash_h);
+ memzero_explicit(&aes_ctx, sizeof(aes_ctx));
/* fill the Key context */
if (direction == TLS_OFFLOAD_CTX_DIR_TX) {
key_ctx_size >> 4);
} else {
ret = -EINVAL;
- goto out1;
+ goto out;
}
memcpy(kctx->salt, salt, tx_info->salt_size);
memcpy(kctx->key + keylen, ghash_h, ghash_size);
tx_info->key_ctx_len = key_ctx_size;
-out1:
- crypto_free_cipher(cipher);
out:
return ret;
}