584 lines
15 KiB
C
584 lines
15 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/**
|
|
* AES CCM routines supporting the Power 7+ Nest Accelerators driver
|
|
*
|
|
* Copyright (C) 2012 International Business Machines Inc.
|
|
*
|
|
* Author: Kent Yoder <yoder1@us.ibm.com>
|
|
*/
|
|
|
|
#include <crypto/internal/aead.h>
|
|
#include <crypto/aes.h>
|
|
#include <crypto/algapi.h>
|
|
#include <crypto/scatterwalk.h>
|
|
#include <linux/module.h>
|
|
#include <linux/types.h>
|
|
#include <linux/crypto.h>
|
|
#include <asm/vio.h>
|
|
|
|
#include "nx_csbcpb.h"
|
|
#include "nx.h"
|
|
|
|
|
|
static int ccm_aes_nx_set_key(struct crypto_aead *tfm,
|
|
const u8 *in_key,
|
|
unsigned int key_len)
|
|
{
|
|
struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&tfm->base);
|
|
struct nx_csbcpb *csbcpb = nx_ctx->csbcpb;
|
|
struct nx_csbcpb *csbcpb_aead = nx_ctx->csbcpb_aead;
|
|
|
|
nx_ctx_init(nx_ctx, HCOP_FC_AES);
|
|
|
|
switch (key_len) {
|
|
case AES_KEYSIZE_128:
|
|
NX_CPB_SET_KEY_SIZE(csbcpb, NX_KS_AES_128);
|
|
NX_CPB_SET_KEY_SIZE(csbcpb_aead, NX_KS_AES_128);
|
|
nx_ctx->ap = &nx_ctx->props[NX_PROPS_AES_128];
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
csbcpb->cpb.hdr.mode = NX_MODE_AES_CCM;
|
|
memcpy(csbcpb->cpb.aes_ccm.key, in_key, key_len);
|
|
|
|
csbcpb_aead->cpb.hdr.mode = NX_MODE_AES_CCA;
|
|
memcpy(csbcpb_aead->cpb.aes_cca.key, in_key, key_len);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
static int ccm4309_aes_nx_set_key(struct crypto_aead *tfm,
|
|
const u8 *in_key,
|
|
unsigned int key_len)
|
|
{
|
|
struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(&tfm->base);
|
|
|
|
if (key_len < 3)
|
|
return -EINVAL;
|
|
|
|
key_len -= 3;
|
|
|
|
memcpy(nx_ctx->priv.ccm.nonce, in_key + key_len, 3);
|
|
|
|
return ccm_aes_nx_set_key(tfm, in_key, key_len);
|
|
}
|
|
|
|
static int ccm_aes_nx_setauthsize(struct crypto_aead *tfm,
|
|
unsigned int authsize)
|
|
{
|
|
switch (authsize) {
|
|
case 4:
|
|
case 6:
|
|
case 8:
|
|
case 10:
|
|
case 12:
|
|
case 14:
|
|
case 16:
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int ccm4309_aes_nx_setauthsize(struct crypto_aead *tfm,
|
|
unsigned int authsize)
|
|
{
|
|
switch (authsize) {
|
|
case 8:
|
|
case 12:
|
|
case 16:
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* taken from crypto/ccm.c */
|
|
static int set_msg_len(u8 *block, unsigned int msglen, int csize)
|
|
{
|
|
__be32 data;
|
|
|
|
memset(block, 0, csize);
|
|
block += csize;
|
|
|
|
if (csize >= 4)
|
|
csize = 4;
|
|
else if (msglen > (unsigned int)(1 << (8 * csize)))
|
|
return -EOVERFLOW;
|
|
|
|
data = cpu_to_be32(msglen);
|
|
memcpy(block - csize, (u8 *)&data + 4 - csize, csize);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* taken from crypto/ccm.c */
|
|
static inline int crypto_ccm_check_iv(const u8 *iv)
|
|
{
|
|
/* 2 <= L <= 8, so 1 <= L' <= 7. */
|
|
if (1 > iv[0] || iv[0] > 7)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* based on code from crypto/ccm.c */
|
|
static int generate_b0(u8 *iv, unsigned int assoclen, unsigned int authsize,
|
|
unsigned int cryptlen, u8 *b0)
|
|
{
|
|
unsigned int l, lp, m = authsize;
|
|
int rc;
|
|
|
|
memcpy(b0, iv, 16);
|
|
|
|
lp = b0[0];
|
|
l = lp + 1;
|
|
|
|
/* set m, bits 3-5 */
|
|
*b0 |= (8 * ((m - 2) / 2));
|
|
|
|
/* set adata, bit 6, if associated data is used */
|
|
if (assoclen)
|
|
*b0 |= 64;
|
|
|
|
rc = set_msg_len(b0 + 16 - l, cryptlen, l);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int generate_pat(u8 *iv,
|
|
struct aead_request *req,
|
|
struct nx_crypto_ctx *nx_ctx,
|
|
unsigned int authsize,
|
|
unsigned int nbytes,
|
|
unsigned int assoclen,
|
|
u8 *out)
|
|
{
|
|
struct nx_sg *nx_insg = nx_ctx->in_sg;
|
|
struct nx_sg *nx_outsg = nx_ctx->out_sg;
|
|
unsigned int iauth_len = 0;
|
|
u8 tmp[16], *b1 = NULL, *b0 = NULL, *result = NULL;
|
|
int rc;
|
|
unsigned int max_sg_len;
|
|
|
|
/* zero the ctr value */
|
|
memset(iv + 15 - iv[0], 0, iv[0] + 1);
|
|
|
|
/* page 78 of nx_wb.pdf has,
|
|
* Note: RFC3610 allows the AAD data to be up to 2^64 -1 bytes
|
|
* in length. If a full message is used, the AES CCA implementation
|
|
* restricts the maximum AAD length to 2^32 -1 bytes.
|
|
* If partial messages are used, the implementation supports
|
|
* 2^64 -1 bytes maximum AAD length.
|
|
*
|
|
* However, in the cryptoapi's aead_request structure,
|
|
* assoclen is an unsigned int, thus it cannot hold a length
|
|
* value greater than 2^32 - 1.
|
|
* Thus the AAD is further constrained by this and is never
|
|
* greater than 2^32.
|
|
*/
|
|
|
|
if (!assoclen) {
|
|
b0 = nx_ctx->csbcpb->cpb.aes_ccm.in_pat_or_b0;
|
|
} else if (assoclen <= 14) {
|
|
/* if associated data is 14 bytes or less, we do 1 GCM
|
|
* operation on 2 AES blocks, B0 (stored in the csbcpb) and B1,
|
|
* which is fed in through the source buffers here */
|
|
b0 = nx_ctx->csbcpb->cpb.aes_ccm.in_pat_or_b0;
|
|
b1 = nx_ctx->priv.ccm.iauth_tag;
|
|
iauth_len = assoclen;
|
|
} else if (assoclen <= 65280) {
|
|
/* if associated data is less than (2^16 - 2^8), we construct
|
|
* B1 differently and feed in the associated data to a CCA
|
|
* operation */
|
|
b0 = nx_ctx->csbcpb_aead->cpb.aes_cca.b0;
|
|
b1 = nx_ctx->csbcpb_aead->cpb.aes_cca.b1;
|
|
iauth_len = 14;
|
|
} else {
|
|
b0 = nx_ctx->csbcpb_aead->cpb.aes_cca.b0;
|
|
b1 = nx_ctx->csbcpb_aead->cpb.aes_cca.b1;
|
|
iauth_len = 10;
|
|
}
|
|
|
|
/* generate B0 */
|
|
rc = generate_b0(iv, assoclen, authsize, nbytes, b0);
|
|
if (rc)
|
|
return rc;
|
|
|
|
/* generate B1:
|
|
* add control info for associated data
|
|
* RFC 3610 and NIST Special Publication 800-38C
|
|
*/
|
|
if (b1) {
|
|
memset(b1, 0, 16);
|
|
if (assoclen <= 65280) {
|
|
*(u16 *)b1 = assoclen;
|
|
scatterwalk_map_and_copy(b1 + 2, req->src, 0,
|
|
iauth_len, SCATTERWALK_FROM_SG);
|
|
} else {
|
|
*(u16 *)b1 = (u16)(0xfffe);
|
|
*(u32 *)&b1[2] = assoclen;
|
|
scatterwalk_map_and_copy(b1 + 6, req->src, 0,
|
|
iauth_len, SCATTERWALK_FROM_SG);
|
|
}
|
|
}
|
|
|
|
/* now copy any remaining AAD to scatterlist and call nx... */
|
|
if (!assoclen) {
|
|
return rc;
|
|
} else if (assoclen <= 14) {
|
|
unsigned int len = 16;
|
|
|
|
nx_insg = nx_build_sg_list(nx_insg, b1, &len, nx_ctx->ap->sglen);
|
|
|
|
if (len != 16)
|
|
return -EINVAL;
|
|
|
|
nx_outsg = nx_build_sg_list(nx_outsg, tmp, &len,
|
|
nx_ctx->ap->sglen);
|
|
|
|
if (len != 16)
|
|
return -EINVAL;
|
|
|
|
/* inlen should be negative, indicating to phyp that its a
|
|
* pointer to an sg list */
|
|
nx_ctx->op.inlen = (nx_ctx->in_sg - nx_insg) *
|
|
sizeof(struct nx_sg);
|
|
nx_ctx->op.outlen = (nx_ctx->out_sg - nx_outsg) *
|
|
sizeof(struct nx_sg);
|
|
|
|
NX_CPB_FDM(nx_ctx->csbcpb) |= NX_FDM_ENDE_ENCRYPT;
|
|
NX_CPB_FDM(nx_ctx->csbcpb) |= NX_FDM_INTERMEDIATE;
|
|
|
|
result = nx_ctx->csbcpb->cpb.aes_ccm.out_pat_or_mac;
|
|
|
|
rc = nx_hcall_sync(nx_ctx, &nx_ctx->op,
|
|
req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP);
|
|
if (rc)
|
|
return rc;
|
|
|
|
atomic_inc(&(nx_ctx->stats->aes_ops));
|
|
atomic64_add(assoclen, &nx_ctx->stats->aes_bytes);
|
|
|
|
} else {
|
|
unsigned int processed = 0, to_process;
|
|
|
|
processed += iauth_len;
|
|
|
|
/* page_limit: number of sg entries that fit on one page */
|
|
max_sg_len = min_t(u64, nx_ctx->ap->sglen,
|
|
nx_driver.of.max_sg_len/sizeof(struct nx_sg));
|
|
max_sg_len = min_t(u64, max_sg_len,
|
|
nx_ctx->ap->databytelen/NX_PAGE_SIZE);
|
|
|
|
do {
|
|
to_process = min_t(u32, assoclen - processed,
|
|
nx_ctx->ap->databytelen);
|
|
|
|
nx_insg = nx_walk_and_build(nx_ctx->in_sg,
|
|
nx_ctx->ap->sglen,
|
|
req->src, processed,
|
|
&to_process);
|
|
|
|
if ((to_process + processed) < assoclen) {
|
|
NX_CPB_FDM(nx_ctx->csbcpb_aead) |=
|
|
NX_FDM_INTERMEDIATE;
|
|
} else {
|
|
NX_CPB_FDM(nx_ctx->csbcpb_aead) &=
|
|
~NX_FDM_INTERMEDIATE;
|
|
}
|
|
|
|
|
|
nx_ctx->op_aead.inlen = (nx_ctx->in_sg - nx_insg) *
|
|
sizeof(struct nx_sg);
|
|
|
|
result = nx_ctx->csbcpb_aead->cpb.aes_cca.out_pat_or_b0;
|
|
|
|
rc = nx_hcall_sync(nx_ctx, &nx_ctx->op_aead,
|
|
req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP);
|
|
if (rc)
|
|
return rc;
|
|
|
|
memcpy(nx_ctx->csbcpb_aead->cpb.aes_cca.b0,
|
|
nx_ctx->csbcpb_aead->cpb.aes_cca.out_pat_or_b0,
|
|
AES_BLOCK_SIZE);
|
|
|
|
NX_CPB_FDM(nx_ctx->csbcpb_aead) |= NX_FDM_CONTINUATION;
|
|
|
|
atomic_inc(&(nx_ctx->stats->aes_ops));
|
|
atomic64_add(assoclen, &nx_ctx->stats->aes_bytes);
|
|
|
|
processed += to_process;
|
|
} while (processed < assoclen);
|
|
|
|
result = nx_ctx->csbcpb_aead->cpb.aes_cca.out_pat_or_b0;
|
|
}
|
|
|
|
memcpy(out, result, AES_BLOCK_SIZE);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int ccm_nx_decrypt(struct aead_request *req,
|
|
struct blkcipher_desc *desc,
|
|
unsigned int assoclen)
|
|
{
|
|
struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(req->base.tfm);
|
|
struct nx_csbcpb *csbcpb = nx_ctx->csbcpb;
|
|
unsigned int nbytes = req->cryptlen;
|
|
unsigned int authsize = crypto_aead_authsize(crypto_aead_reqtfm(req));
|
|
struct nx_ccm_priv *priv = &nx_ctx->priv.ccm;
|
|
unsigned long irq_flags;
|
|
unsigned int processed = 0, to_process;
|
|
int rc = -1;
|
|
|
|
spin_lock_irqsave(&nx_ctx->lock, irq_flags);
|
|
|
|
nbytes -= authsize;
|
|
|
|
/* copy out the auth tag to compare with later */
|
|
scatterwalk_map_and_copy(priv->oauth_tag,
|
|
req->src, nbytes + req->assoclen, authsize,
|
|
SCATTERWALK_FROM_SG);
|
|
|
|
rc = generate_pat(desc->info, req, nx_ctx, authsize, nbytes, assoclen,
|
|
csbcpb->cpb.aes_ccm.in_pat_or_b0);
|
|
if (rc)
|
|
goto out;
|
|
|
|
do {
|
|
|
|
/* to_process: the AES_BLOCK_SIZE data chunk to process in this
|
|
* update. This value is bound by sg list limits.
|
|
*/
|
|
to_process = nbytes - processed;
|
|
|
|
if ((to_process + processed) < nbytes)
|
|
NX_CPB_FDM(csbcpb) |= NX_FDM_INTERMEDIATE;
|
|
else
|
|
NX_CPB_FDM(csbcpb) &= ~NX_FDM_INTERMEDIATE;
|
|
|
|
NX_CPB_FDM(nx_ctx->csbcpb) &= ~NX_FDM_ENDE_ENCRYPT;
|
|
|
|
rc = nx_build_sg_lists(nx_ctx, desc, req->dst, req->src,
|
|
&to_process, processed + req->assoclen,
|
|
csbcpb->cpb.aes_ccm.iv_or_ctr);
|
|
if (rc)
|
|
goto out;
|
|
|
|
rc = nx_hcall_sync(nx_ctx, &nx_ctx->op,
|
|
req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP);
|
|
if (rc)
|
|
goto out;
|
|
|
|
/* for partial completion, copy following for next
|
|
* entry into loop...
|
|
*/
|
|
memcpy(desc->info, csbcpb->cpb.aes_ccm.out_ctr, AES_BLOCK_SIZE);
|
|
memcpy(csbcpb->cpb.aes_ccm.in_pat_or_b0,
|
|
csbcpb->cpb.aes_ccm.out_pat_or_mac, AES_BLOCK_SIZE);
|
|
memcpy(csbcpb->cpb.aes_ccm.in_s0,
|
|
csbcpb->cpb.aes_ccm.out_s0, AES_BLOCK_SIZE);
|
|
|
|
NX_CPB_FDM(csbcpb) |= NX_FDM_CONTINUATION;
|
|
|
|
/* update stats */
|
|
atomic_inc(&(nx_ctx->stats->aes_ops));
|
|
atomic64_add(csbcpb->csb.processed_byte_count,
|
|
&(nx_ctx->stats->aes_bytes));
|
|
|
|
processed += to_process;
|
|
} while (processed < nbytes);
|
|
|
|
rc = crypto_memneq(csbcpb->cpb.aes_ccm.out_pat_or_mac, priv->oauth_tag,
|
|
authsize) ? -EBADMSG : 0;
|
|
out:
|
|
spin_unlock_irqrestore(&nx_ctx->lock, irq_flags);
|
|
return rc;
|
|
}
|
|
|
|
static int ccm_nx_encrypt(struct aead_request *req,
|
|
struct blkcipher_desc *desc,
|
|
unsigned int assoclen)
|
|
{
|
|
struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(req->base.tfm);
|
|
struct nx_csbcpb *csbcpb = nx_ctx->csbcpb;
|
|
unsigned int nbytes = req->cryptlen;
|
|
unsigned int authsize = crypto_aead_authsize(crypto_aead_reqtfm(req));
|
|
unsigned long irq_flags;
|
|
unsigned int processed = 0, to_process;
|
|
int rc = -1;
|
|
|
|
spin_lock_irqsave(&nx_ctx->lock, irq_flags);
|
|
|
|
rc = generate_pat(desc->info, req, nx_ctx, authsize, nbytes, assoclen,
|
|
csbcpb->cpb.aes_ccm.in_pat_or_b0);
|
|
if (rc)
|
|
goto out;
|
|
|
|
do {
|
|
/* to process: the AES_BLOCK_SIZE data chunk to process in this
|
|
* update. This value is bound by sg list limits.
|
|
*/
|
|
to_process = nbytes - processed;
|
|
|
|
if ((to_process + processed) < nbytes)
|
|
NX_CPB_FDM(csbcpb) |= NX_FDM_INTERMEDIATE;
|
|
else
|
|
NX_CPB_FDM(csbcpb) &= ~NX_FDM_INTERMEDIATE;
|
|
|
|
NX_CPB_FDM(csbcpb) |= NX_FDM_ENDE_ENCRYPT;
|
|
|
|
rc = nx_build_sg_lists(nx_ctx, desc, req->dst, req->src,
|
|
&to_process, processed + req->assoclen,
|
|
csbcpb->cpb.aes_ccm.iv_or_ctr);
|
|
if (rc)
|
|
goto out;
|
|
|
|
rc = nx_hcall_sync(nx_ctx, &nx_ctx->op,
|
|
req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP);
|
|
if (rc)
|
|
goto out;
|
|
|
|
/* for partial completion, copy following for next
|
|
* entry into loop...
|
|
*/
|
|
memcpy(desc->info, csbcpb->cpb.aes_ccm.out_ctr, AES_BLOCK_SIZE);
|
|
memcpy(csbcpb->cpb.aes_ccm.in_pat_or_b0,
|
|
csbcpb->cpb.aes_ccm.out_pat_or_mac, AES_BLOCK_SIZE);
|
|
memcpy(csbcpb->cpb.aes_ccm.in_s0,
|
|
csbcpb->cpb.aes_ccm.out_s0, AES_BLOCK_SIZE);
|
|
|
|
NX_CPB_FDM(csbcpb) |= NX_FDM_CONTINUATION;
|
|
|
|
/* update stats */
|
|
atomic_inc(&(nx_ctx->stats->aes_ops));
|
|
atomic64_add(csbcpb->csb.processed_byte_count,
|
|
&(nx_ctx->stats->aes_bytes));
|
|
|
|
processed += to_process;
|
|
|
|
} while (processed < nbytes);
|
|
|
|
/* copy out the auth tag */
|
|
scatterwalk_map_and_copy(csbcpb->cpb.aes_ccm.out_pat_or_mac,
|
|
req->dst, nbytes + req->assoclen, authsize,
|
|
SCATTERWALK_TO_SG);
|
|
|
|
out:
|
|
spin_unlock_irqrestore(&nx_ctx->lock, irq_flags);
|
|
return rc;
|
|
}
|
|
|
|
static int ccm4309_aes_nx_encrypt(struct aead_request *req)
|
|
{
|
|
struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(req->base.tfm);
|
|
struct nx_gcm_rctx *rctx = aead_request_ctx(req);
|
|
struct blkcipher_desc desc;
|
|
u8 *iv = rctx->iv;
|
|
|
|
iv[0] = 3;
|
|
memcpy(iv + 1, nx_ctx->priv.ccm.nonce, 3);
|
|
memcpy(iv + 4, req->iv, 8);
|
|
|
|
desc.info = iv;
|
|
|
|
return ccm_nx_encrypt(req, &desc, req->assoclen - 8);
|
|
}
|
|
|
|
static int ccm_aes_nx_encrypt(struct aead_request *req)
|
|
{
|
|
struct blkcipher_desc desc;
|
|
int rc;
|
|
|
|
desc.info = req->iv;
|
|
|
|
rc = crypto_ccm_check_iv(desc.info);
|
|
if (rc)
|
|
return rc;
|
|
|
|
return ccm_nx_encrypt(req, &desc, req->assoclen);
|
|
}
|
|
|
|
static int ccm4309_aes_nx_decrypt(struct aead_request *req)
|
|
{
|
|
struct nx_crypto_ctx *nx_ctx = crypto_tfm_ctx(req->base.tfm);
|
|
struct nx_gcm_rctx *rctx = aead_request_ctx(req);
|
|
struct blkcipher_desc desc;
|
|
u8 *iv = rctx->iv;
|
|
|
|
iv[0] = 3;
|
|
memcpy(iv + 1, nx_ctx->priv.ccm.nonce, 3);
|
|
memcpy(iv + 4, req->iv, 8);
|
|
|
|
desc.info = iv;
|
|
|
|
return ccm_nx_decrypt(req, &desc, req->assoclen - 8);
|
|
}
|
|
|
|
static int ccm_aes_nx_decrypt(struct aead_request *req)
|
|
{
|
|
struct blkcipher_desc desc;
|
|
int rc;
|
|
|
|
desc.info = req->iv;
|
|
|
|
rc = crypto_ccm_check_iv(desc.info);
|
|
if (rc)
|
|
return rc;
|
|
|
|
return ccm_nx_decrypt(req, &desc, req->assoclen);
|
|
}
|
|
|
|
/* tell the block cipher walk routines that this is a stream cipher by
|
|
* setting cra_blocksize to 1. Even using blkcipher_walk_virt_block
|
|
* during encrypt/decrypt doesn't solve this problem, because it calls
|
|
* blkcipher_walk_done under the covers, which doesn't use walk->blocksize,
|
|
* but instead uses this tfm->blocksize. */
|
|
struct aead_alg nx_ccm_aes_alg = {
|
|
.base = {
|
|
.cra_name = "ccm(aes)",
|
|
.cra_driver_name = "ccm-aes-nx",
|
|
.cra_priority = 300,
|
|
.cra_flags = CRYPTO_ALG_NEED_FALLBACK,
|
|
.cra_blocksize = 1,
|
|
.cra_ctxsize = sizeof(struct nx_crypto_ctx),
|
|
.cra_module = THIS_MODULE,
|
|
},
|
|
.init = nx_crypto_ctx_aes_ccm_init,
|
|
.exit = nx_crypto_ctx_aead_exit,
|
|
.ivsize = AES_BLOCK_SIZE,
|
|
.maxauthsize = AES_BLOCK_SIZE,
|
|
.setkey = ccm_aes_nx_set_key,
|
|
.setauthsize = ccm_aes_nx_setauthsize,
|
|
.encrypt = ccm_aes_nx_encrypt,
|
|
.decrypt = ccm_aes_nx_decrypt,
|
|
};
|
|
|
|
struct aead_alg nx_ccm4309_aes_alg = {
|
|
.base = {
|
|
.cra_name = "rfc4309(ccm(aes))",
|
|
.cra_driver_name = "rfc4309-ccm-aes-nx",
|
|
.cra_priority = 300,
|
|
.cra_flags = CRYPTO_ALG_NEED_FALLBACK,
|
|
.cra_blocksize = 1,
|
|
.cra_ctxsize = sizeof(struct nx_crypto_ctx),
|
|
.cra_module = THIS_MODULE,
|
|
},
|
|
.init = nx_crypto_ctx_aes_ccm_init,
|
|
.exit = nx_crypto_ctx_aead_exit,
|
|
.ivsize = 8,
|
|
.maxauthsize = AES_BLOCK_SIZE,
|
|
.setkey = ccm4309_aes_nx_set_key,
|
|
.setauthsize = ccm4309_aes_nx_setauthsize,
|
|
.encrypt = ccm4309_aes_nx_encrypt,
|
|
.decrypt = ccm4309_aes_nx_decrypt,
|
|
};
|