Commit 56e8e57f authored by Ondrej Mosnacek's avatar Ondrej Mosnacek Committed by Herbert Xu

crypto: morus - Add common SIMD glue code for MORUS

This patch adds a common glue code for optimized implementations of
MORUS AEAD algorithms.
Signed-off-by: 's avatarOndrej Mosnacek <omosnacek@gmail.com>
Signed-off-by: 's avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 4feb4c59
......@@ -340,12 +340,28 @@ config CRYPTO_MORUS640
help
Support for the MORUS-640 dedicated AEAD algorithm.
config CRYPTO_MORUS640_GLUE
tristate "MORUS-640 AEAD algorithm (glue for SIMD optimizations)"
select CRYPTO_AEAD
select CRYPTO_CRYPTD
help
Common glue for SIMD optimizations of the MORUS-640 dedicated AEAD
algorithm.
config CRYPTO_MORUS1280
tristate "MORUS-1280 AEAD algorithm"
select CRYPTO_AEAD
help
Support for the MORUS-1280 dedicated AEAD algorithm.
config CRYPTO_MORUS1280_GLUE
tristate "MORUS-1280 AEAD algorithm (glue for SIMD optimizations)"
select CRYPTO_AEAD
select CRYPTO_CRYPTD
help
Common glue for SIMD optimizations of the MORUS-1280 dedicated AEAD
algorithm.
config CRYPTO_SEQIV
tristate "Sequence Number IV Generator"
select CRYPTO_AEAD
......
......@@ -91,6 +91,8 @@ obj-$(CONFIG_CRYPTO_AEGIS128L) += aegis128l.o
obj-$(CONFIG_CRYPTO_AEGIS256) += aegis256.o
obj-$(CONFIG_CRYPTO_MORUS640) += morus640.o
obj-$(CONFIG_CRYPTO_MORUS1280) += morus1280.o
obj-$(CONFIG_CRYPTO_MORUS640_GLUE) += morus640_glue.o
obj-$(CONFIG_CRYPTO_MORUS1280_GLUE) += morus1280_glue.o
obj-$(CONFIG_CRYPTO_PCRYPT) += pcrypt.o
obj-$(CONFIG_CRYPTO_CRYPTD) += cryptd.o
obj-$(CONFIG_CRYPTO_MCRYPTD) += mcryptd.o
......
/*
* The MORUS-1280 Authenticated-Encryption Algorithm
* Common glue skeleton
*
* Copyright (c) 2016-2018 Ondrej Mosnacek <omosnacek@gmail.com>
* Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*/
#include <crypto/cryptd.h>
#include <crypto/internal/aead.h>
#include <crypto/internal/skcipher.h>
#include <crypto/morus1280_glue.h>
#include <crypto/scatterwalk.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/scatterlist.h>
#include <asm/fpu/api.h>
struct morus1280_state {
struct morus1280_block s[MORUS_STATE_BLOCKS];
};
struct morus1280_ops {
int (*skcipher_walk_init)(struct skcipher_walk *walk,
struct aead_request *req, bool atomic);
void (*crypt_blocks)(void *state, const void *src, void *dst,
unsigned int length);
void (*crypt_tail)(void *state, const void *src, void *dst,
unsigned int length);
};
static void crypto_morus1280_glue_process_ad(
struct morus1280_state *state,
const struct morus1280_glue_ops *ops,
struct scatterlist *sg_src, unsigned int assoclen)
{
struct scatter_walk walk;
struct morus1280_block buf;
unsigned int pos = 0;
scatterwalk_start(&walk, sg_src);
while (assoclen != 0) {
unsigned int size = scatterwalk_clamp(&walk, assoclen);
unsigned int left = size;
void *mapped = scatterwalk_map(&walk);
const u8 *src = (const u8 *)mapped;
if (pos + size >= MORUS1280_BLOCK_SIZE) {
if (pos > 0) {
unsigned int fill = MORUS1280_BLOCK_SIZE - pos;
memcpy(buf.bytes + pos, src, fill);
ops->ad(state, buf.bytes, MORUS1280_BLOCK_SIZE);
pos = 0;
left -= fill;
src += fill;
}
ops->ad(state, src, left);
src += left & ~(MORUS1280_BLOCK_SIZE - 1);
left &= MORUS1280_BLOCK_SIZE - 1;
}
memcpy(buf.bytes + pos, src, left);
pos += left;
assoclen -= size;
scatterwalk_unmap(mapped);
scatterwalk_advance(&walk, size);
scatterwalk_done(&walk, 0, assoclen);
}
if (pos > 0) {
memset(buf.bytes + pos, 0, MORUS1280_BLOCK_SIZE - pos);
ops->ad(state, buf.bytes, MORUS1280_BLOCK_SIZE);
}
}
static void crypto_morus1280_glue_process_crypt(struct morus1280_state *state,
struct morus1280_ops ops,
struct aead_request *req)
{
struct skcipher_walk walk;
u8 *cursor_src, *cursor_dst;
unsigned int chunksize, base;
ops.skcipher_walk_init(&walk, req, false);
while (walk.nbytes) {
cursor_src = walk.src.virt.addr;
cursor_dst = walk.dst.virt.addr;
chunksize = walk.nbytes;
ops.crypt_blocks(state, cursor_src, cursor_dst, chunksize);
base = chunksize & ~(MORUS1280_BLOCK_SIZE - 1);
cursor_src += base;
cursor_dst += base;
chunksize &= MORUS1280_BLOCK_SIZE - 1;
if (chunksize > 0)
ops.crypt_tail(state, cursor_src, cursor_dst,
chunksize);
skcipher_walk_done(&walk, 0);
}
}
int crypto_morus1280_glue_setkey(struct crypto_aead *aead, const u8 *key,
unsigned int keylen)
{
struct morus1280_ctx *ctx = crypto_aead_ctx(aead);
if (keylen == MORUS1280_BLOCK_SIZE) {
memcpy(ctx->key.bytes, key, MORUS1280_BLOCK_SIZE);
} else if (keylen == MORUS1280_BLOCK_SIZE / 2) {
memcpy(ctx->key.bytes, key, keylen);
memcpy(ctx->key.bytes + keylen, key, keylen);
} else {
crypto_aead_set_flags(aead, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
return 0;
}
EXPORT_SYMBOL_GPL(crypto_morus1280_glue_setkey);
int crypto_morus1280_glue_setauthsize(struct crypto_aead *tfm,
unsigned int authsize)
{
return (authsize <= MORUS_MAX_AUTH_SIZE) ? 0 : -EINVAL;
}
EXPORT_SYMBOL_GPL(crypto_morus1280_glue_setauthsize);
static void crypto_morus1280_glue_crypt(struct aead_request *req,
struct morus1280_ops ops,
unsigned int cryptlen,
struct morus1280_block *tag_xor)
{
struct crypto_aead *tfm = crypto_aead_reqtfm(req);
struct morus1280_ctx *ctx = crypto_aead_ctx(tfm);
struct morus1280_state state;
kernel_fpu_begin();
ctx->ops->init(&state, &ctx->key, req->iv);
crypto_morus1280_glue_process_ad(&state, ctx->ops, req->src, req->assoclen);
crypto_morus1280_glue_process_crypt(&state, ops, req);
ctx->ops->final(&state, tag_xor, req->assoclen, cryptlen);
kernel_fpu_end();
}
int crypto_morus1280_glue_encrypt(struct aead_request *req)
{
struct crypto_aead *tfm = crypto_aead_reqtfm(req);
struct morus1280_ctx *ctx = crypto_aead_ctx(tfm);
struct morus1280_ops OPS = {
.skcipher_walk_init = skcipher_walk_aead_encrypt,
.crypt_blocks = ctx->ops->enc,
.crypt_tail = ctx->ops->enc_tail,
};
struct morus1280_block tag = {};
unsigned int authsize = crypto_aead_authsize(tfm);
unsigned int cryptlen = req->cryptlen;
crypto_morus1280_glue_crypt(req, OPS, cryptlen, &tag);
scatterwalk_map_and_copy(tag.bytes, req->dst,
req->assoclen + cryptlen, authsize, 1);
return 0;
}
EXPORT_SYMBOL_GPL(crypto_morus1280_glue_encrypt);
int crypto_morus1280_glue_decrypt(struct aead_request *req)
{
static const u8 zeros[MORUS1280_BLOCK_SIZE] = {};
struct crypto_aead *tfm = crypto_aead_reqtfm(req);
struct morus1280_ctx *ctx = crypto_aead_ctx(tfm);
struct morus1280_ops OPS = {
.skcipher_walk_init = skcipher_walk_aead_decrypt,
.crypt_blocks = ctx->ops->dec,
.crypt_tail = ctx->ops->dec_tail,
};
struct morus1280_block tag;
unsigned int authsize = crypto_aead_authsize(tfm);
unsigned int cryptlen = req->cryptlen - authsize;
scatterwalk_map_and_copy(tag.bytes, req->src,
req->assoclen + cryptlen, authsize, 0);
crypto_morus1280_glue_crypt(req, OPS, cryptlen, &tag);
return crypto_memneq(tag.bytes, zeros, authsize) ? -EBADMSG : 0;
}
EXPORT_SYMBOL_GPL(crypto_morus1280_glue_decrypt);
void crypto_morus1280_glue_init_ops(struct crypto_aead *aead,
const struct morus1280_glue_ops *ops)
{
struct morus1280_ctx *ctx = crypto_aead_ctx(aead);
ctx->ops = ops;
}
EXPORT_SYMBOL_GPL(crypto_morus1280_glue_init_ops);
int cryptd_morus1280_glue_setkey(struct crypto_aead *aead, const u8 *key,
unsigned int keylen)
{
struct cryptd_aead **ctx = crypto_aead_ctx(aead);
struct cryptd_aead *cryptd_tfm = *ctx;
return crypto_aead_setkey(&cryptd_tfm->base, key, keylen);
}
EXPORT_SYMBOL_GPL(cryptd_morus1280_glue_setkey);
int cryptd_morus1280_glue_setauthsize(struct crypto_aead *aead,
unsigned int authsize)
{
struct cryptd_aead **ctx = crypto_aead_ctx(aead);
struct cryptd_aead *cryptd_tfm = *ctx;
return crypto_aead_setauthsize(&cryptd_tfm->base, authsize);
}
EXPORT_SYMBOL_GPL(cryptd_morus1280_glue_setauthsize);
int cryptd_morus1280_glue_encrypt(struct aead_request *req)
{
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct cryptd_aead **ctx = crypto_aead_ctx(aead);
struct cryptd_aead *cryptd_tfm = *ctx;
aead = &cryptd_tfm->base;
if (irq_fpu_usable() && (!in_atomic() ||
!cryptd_aead_queued(cryptd_tfm)))
aead = cryptd_aead_child(cryptd_tfm);
aead_request_set_tfm(req, aead);
return crypto_aead_encrypt(req);
}
EXPORT_SYMBOL_GPL(cryptd_morus1280_glue_encrypt);
int cryptd_morus1280_glue_decrypt(struct aead_request *req)
{
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct cryptd_aead **ctx = crypto_aead_ctx(aead);
struct cryptd_aead *cryptd_tfm = *ctx;
aead = &cryptd_tfm->base;
if (irq_fpu_usable() && (!in_atomic() ||
!cryptd_aead_queued(cryptd_tfm)))
aead = cryptd_aead_child(cryptd_tfm);
aead_request_set_tfm(req, aead);
return crypto_aead_decrypt(req);
}
EXPORT_SYMBOL_GPL(cryptd_morus1280_glue_decrypt);
int cryptd_morus1280_glue_init_tfm(struct crypto_aead *aead)
{
struct cryptd_aead *cryptd_tfm;
struct cryptd_aead **ctx = crypto_aead_ctx(aead);
const char *name = crypto_aead_alg(aead)->base.cra_driver_name;
char internal_name[CRYPTO_MAX_ALG_NAME];
if (snprintf(internal_name, CRYPTO_MAX_ALG_NAME, "__%s", name)
>= CRYPTO_MAX_ALG_NAME)
return -ENAMETOOLONG;
cryptd_tfm = cryptd_alloc_aead(internal_name, CRYPTO_ALG_INTERNAL,
CRYPTO_ALG_INTERNAL);
if (IS_ERR(cryptd_tfm))
return PTR_ERR(cryptd_tfm);
*ctx = cryptd_tfm;
crypto_aead_set_reqsize(aead, crypto_aead_reqsize(&cryptd_tfm->base));
return 0;
}
EXPORT_SYMBOL_GPL(cryptd_morus1280_glue_init_tfm);
void cryptd_morus1280_glue_exit_tfm(struct crypto_aead *aead)
{
struct cryptd_aead **ctx = crypto_aead_ctx(aead);
cryptd_free_aead(*ctx);
}
EXPORT_SYMBOL_GPL(cryptd_morus1280_glue_exit_tfm);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Ondrej Mosnacek <omosnacek@gmail.com>");
MODULE_DESCRIPTION("MORUS-1280 AEAD mode -- glue for optimizations");
/*
* The MORUS-640 Authenticated-Encryption Algorithm
* Common glue skeleton
*
* Copyright (c) 2016-2018 Ondrej Mosnacek <omosnacek@gmail.com>
* Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*/
#include <crypto/cryptd.h>
#include <crypto/internal/aead.h>
#include <crypto/internal/skcipher.h>
#include <crypto/morus640_glue.h>
#include <crypto/scatterwalk.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/scatterlist.h>
#include <asm/fpu/api.h>
struct morus640_state {
struct morus640_block s[MORUS_STATE_BLOCKS];
};
struct morus640_ops {
int (*skcipher_walk_init)(struct skcipher_walk *walk,
struct aead_request *req, bool atomic);
void (*crypt_blocks)(void *state, const void *src, void *dst,
unsigned int length);
void (*crypt_tail)(void *state, const void *src, void *dst,
unsigned int length);
};
static void crypto_morus640_glue_process_ad(
struct morus640_state *state,
const struct morus640_glue_ops *ops,
struct scatterlist *sg_src, unsigned int assoclen)
{
struct scatter_walk walk;
struct morus640_block buf;
unsigned int pos = 0;
scatterwalk_start(&walk, sg_src);
while (assoclen != 0) {
unsigned int size = scatterwalk_clamp(&walk, assoclen);
unsigned int left = size;
void *mapped = scatterwalk_map(&walk);
const u8 *src = (const u8 *)mapped;
if (pos + size >= MORUS640_BLOCK_SIZE) {
if (pos > 0) {
unsigned int fill = MORUS640_BLOCK_SIZE - pos;
memcpy(buf.bytes + pos, src, fill);
ops->ad(state, buf.bytes, MORUS640_BLOCK_SIZE);
pos = 0;
left -= fill;
src += fill;
}
ops->ad(state, src, left);
src += left & ~(MORUS640_BLOCK_SIZE - 1);
left &= MORUS640_BLOCK_SIZE - 1;
}
memcpy(buf.bytes + pos, src, left);
pos += left;
assoclen -= size;
scatterwalk_unmap(mapped);
scatterwalk_advance(&walk, size);
scatterwalk_done(&walk, 0, assoclen);
}
if (pos > 0) {
memset(buf.bytes + pos, 0, MORUS640_BLOCK_SIZE - pos);
ops->ad(state, buf.bytes, MORUS640_BLOCK_SIZE);
}
}
static void crypto_morus640_glue_process_crypt(struct morus640_state *state,
struct morus640_ops ops,
struct aead_request *req)
{
struct skcipher_walk walk;
u8 *cursor_src, *cursor_dst;
unsigned int chunksize, base;
ops.skcipher_walk_init(&walk, req, false);
while (walk.nbytes) {
cursor_src = walk.src.virt.addr;
cursor_dst = walk.dst.virt.addr;
chunksize = walk.nbytes;
ops.crypt_blocks(state, cursor_src, cursor_dst, chunksize);
base = chunksize & ~(MORUS640_BLOCK_SIZE - 1);
cursor_src += base;
cursor_dst += base;
chunksize &= MORUS640_BLOCK_SIZE - 1;
if (chunksize > 0)
ops.crypt_tail(state, cursor_src, cursor_dst,
chunksize);
skcipher_walk_done(&walk, 0);
}
}
int crypto_morus640_glue_setkey(struct crypto_aead *aead, const u8 *key,
unsigned int keylen)
{
struct morus640_ctx *ctx = crypto_aead_ctx(aead);
if (keylen != MORUS640_BLOCK_SIZE) {
crypto_aead_set_flags(aead, CRYPTO_TFM_RES_BAD_KEY_LEN);
return -EINVAL;
}
memcpy(ctx->key.bytes, key, MORUS640_BLOCK_SIZE);
return 0;
}
EXPORT_SYMBOL_GPL(crypto_morus640_glue_setkey);
int crypto_morus640_glue_setauthsize(struct crypto_aead *tfm,
unsigned int authsize)
{
return (authsize <= MORUS_MAX_AUTH_SIZE) ? 0 : -EINVAL;
}
EXPORT_SYMBOL_GPL(crypto_morus640_glue_setauthsize);
static void crypto_morus640_glue_crypt(struct aead_request *req,
struct morus640_ops ops,
unsigned int cryptlen,
struct morus640_block *tag_xor)
{
struct crypto_aead *tfm = crypto_aead_reqtfm(req);
struct morus640_ctx *ctx = crypto_aead_ctx(tfm);
struct morus640_state state;
kernel_fpu_begin();
ctx->ops->init(&state, &ctx->key, req->iv);
crypto_morus640_glue_process_ad(&state, ctx->ops, req->src, req->assoclen);
crypto_morus640_glue_process_crypt(&state, ops, req);
ctx->ops->final(&state, tag_xor, req->assoclen, cryptlen);
kernel_fpu_end();
}
int crypto_morus640_glue_encrypt(struct aead_request *req)
{
struct crypto_aead *tfm = crypto_aead_reqtfm(req);
struct morus640_ctx *ctx = crypto_aead_ctx(tfm);
struct morus640_ops OPS = {
.skcipher_walk_init = skcipher_walk_aead_encrypt,
.crypt_blocks = ctx->ops->enc,
.crypt_tail = ctx->ops->enc_tail,
};
struct morus640_block tag = {};
unsigned int authsize = crypto_aead_authsize(tfm);
unsigned int cryptlen = req->cryptlen;
crypto_morus640_glue_crypt(req, OPS, cryptlen, &tag);
scatterwalk_map_and_copy(tag.bytes, req->dst,
req->assoclen + cryptlen, authsize, 1);
return 0;
}
EXPORT_SYMBOL_GPL(crypto_morus640_glue_encrypt);
int crypto_morus640_glue_decrypt(struct aead_request *req)
{
static const u8 zeros[MORUS640_BLOCK_SIZE] = {};
struct crypto_aead *tfm = crypto_aead_reqtfm(req);
struct morus640_ctx *ctx = crypto_aead_ctx(tfm);
struct morus640_ops OPS = {
.skcipher_walk_init = skcipher_walk_aead_decrypt,
.crypt_blocks = ctx->ops->dec,
.crypt_tail = ctx->ops->dec_tail,
};
struct morus640_block tag;
unsigned int authsize = crypto_aead_authsize(tfm);
unsigned int cryptlen = req->cryptlen - authsize;
scatterwalk_map_and_copy(tag.bytes, req->src,
req->assoclen + cryptlen, authsize, 0);
crypto_morus640_glue_crypt(req, OPS, cryptlen, &tag);
return crypto_memneq(tag.bytes, zeros, authsize) ? -EBADMSG : 0;
}
EXPORT_SYMBOL_GPL(crypto_morus640_glue_decrypt);
void crypto_morus640_glue_init_ops(struct crypto_aead *aead,
const struct morus640_glue_ops *ops)
{
struct morus640_ctx *ctx = crypto_aead_ctx(aead);
ctx->ops = ops;
}
EXPORT_SYMBOL_GPL(crypto_morus640_glue_init_ops);
int cryptd_morus640_glue_setkey(struct crypto_aead *aead, const u8 *key,
unsigned int keylen)
{
struct cryptd_aead **ctx = crypto_aead_ctx(aead);
struct cryptd_aead *cryptd_tfm = *ctx;
return crypto_aead_setkey(&cryptd_tfm->base, key, keylen);
}
EXPORT_SYMBOL_GPL(cryptd_morus640_glue_setkey);
int cryptd_morus640_glue_setauthsize(struct crypto_aead *aead,
unsigned int authsize)
{
struct cryptd_aead **ctx = crypto_aead_ctx(aead);
struct cryptd_aead *cryptd_tfm = *ctx;
return crypto_aead_setauthsize(&cryptd_tfm->base, authsize);
}
EXPORT_SYMBOL_GPL(cryptd_morus640_glue_setauthsize);
int cryptd_morus640_glue_encrypt(struct aead_request *req)
{
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct cryptd_aead **ctx = crypto_aead_ctx(aead);
struct cryptd_aead *cryptd_tfm = *ctx;
aead = &cryptd_tfm->base;
if (irq_fpu_usable() && (!in_atomic() ||
!cryptd_aead_queued(cryptd_tfm)))
aead = cryptd_aead_child(cryptd_tfm);
aead_request_set_tfm(req, aead);
return crypto_aead_encrypt(req);
}
EXPORT_SYMBOL_GPL(cryptd_morus640_glue_encrypt);
int cryptd_morus640_glue_decrypt(struct aead_request *req)
{
struct crypto_aead *aead = crypto_aead_reqtfm(req);
struct cryptd_aead **ctx = crypto_aead_ctx(aead);
struct cryptd_aead *cryptd_tfm = *ctx;
aead = &cryptd_tfm->base;
if (irq_fpu_usable() && (!in_atomic() ||
!cryptd_aead_queued(cryptd_tfm)))
aead = cryptd_aead_child(cryptd_tfm);
aead_request_set_tfm(req, aead);
return crypto_aead_decrypt(req);
}
EXPORT_SYMBOL_GPL(cryptd_morus640_glue_decrypt);
int cryptd_morus640_glue_init_tfm(struct crypto_aead *aead)
{
struct cryptd_aead *cryptd_tfm;
struct cryptd_aead **ctx = crypto_aead_ctx(aead);
const char *name = crypto_aead_alg(aead)->base.cra_driver_name;
char internal_name[CRYPTO_MAX_ALG_NAME];
if (snprintf(internal_name, CRYPTO_MAX_ALG_NAME, "__%s", name)
>= CRYPTO_MAX_ALG_NAME)
return -ENAMETOOLONG;
cryptd_tfm = cryptd_alloc_aead(internal_name, CRYPTO_ALG_INTERNAL,
CRYPTO_ALG_INTERNAL);
if (IS_ERR(cryptd_tfm))
return PTR_ERR(cryptd_tfm);
*ctx = cryptd_tfm;
crypto_aead_set_reqsize(aead, crypto_aead_reqsize(&cryptd_tfm->base));
return 0;
}
EXPORT_SYMBOL_GPL(cryptd_morus640_glue_init_tfm);
void cryptd_morus640_glue_exit_tfm(struct crypto_aead *aead)
{
struct cryptd_aead **ctx = crypto_aead_ctx(aead);
cryptd_free_aead(*ctx);
}
EXPORT_SYMBOL_GPL(cryptd_morus640_glue_exit_tfm);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Ondrej Mosnacek <omosnacek@gmail.com>");
MODULE_DESCRIPTION("MORUS-640 AEAD mode -- glue for optimizations");
/* SPDX-License-Identifier: GPL-2.0 */
/*
* The MORUS-1280 Authenticated-Encryption Algorithm
* Common glue skeleton -- header file
*
* Copyright (c) 2016-2018 Ondrej Mosnacek <omosnacek@gmail.com>
* Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*/
#ifndef _CRYPTO_MORUS1280_GLUE_H
#define _CRYPTO_MORUS1280_GLUE_H
#include <linux/module.h>
#include <linux/types.h>
#include <crypto/algapi.h>
#include <crypto/aead.h>
#include <crypto/morus_common.h>
#define MORUS1280_WORD_SIZE 8
#define MORUS1280_BLOCK_SIZE (MORUS_BLOCK_WORDS * MORUS1280_WORD_SIZE)
struct morus1280_block {
u8 bytes[MORUS1280_BLOCK_SIZE];
};
struct morus1280_glue_ops {
void (*init)(void *state, const void *key, const void *iv);
void (*ad)(void *state, const void *data, unsigned int length);
void (*enc)(void *state, const void *src, void *dst, unsigned int length);
void (*dec)(void *state, const void *src, void *dst, unsigned int length);
void (*enc_tail)(void *state, const void *src, void *dst, unsigned int length);
void (*dec_tail)(void *state, const void *src, void *dst, unsigned int length);
void (*final)(void *state, void *tag_xor, u64 assoclen, u64 cryptlen);
};
struct morus1280_ctx {
const struct morus1280_glue_ops *ops;
struct morus1280_block key;
};
void crypto_morus1280_glue_init_ops(struct crypto_aead *aead,
const struct morus1280_glue_ops *ops);
int crypto_morus1280_glue_setkey(struct crypto_aead *aead, const u8 *key,
unsigned int keylen);
int crypto_morus1280_glue_setauthsize(struct crypto_aead *tfm,
unsigned int authsize);
int crypto_morus1280_glue_encrypt(struct aead_request *req);
int crypto_morus1280_glue_decrypt(struct aead_request *req);
int cryptd_morus1280_glue_setkey(struct crypto_aead *aead, const u8 *key,
unsigned int keylen);
int cryptd_morus1280_glue_setauthsize(struct crypto_aead *aead,
unsigned int authsize);
int cryptd_morus1280_glue_encrypt(struct aead_request *req);
int cryptd_morus1280_glue_decrypt(struct aead_request *req);
int cryptd_morus1280_glue_init_tfm(struct crypto_aead *aead);
void cryptd_morus1280_glue_exit_tfm(struct crypto_aead *aead);
#define MORUS1280_DECLARE_ALGS(id, driver_name, priority) \
static const struct morus1280_glue_ops crypto_morus1280_##id##_ops = {\
.init = crypto_morus1280_##id##_init, \
.ad = crypto_morus1280_##id##_ad, \
.enc = crypto_morus1280_##id##_enc, \
.enc_tail = crypto_morus1280_##id##_enc_tail, \
.dec = crypto_morus1280_##id##_dec, \
.dec_tail = crypto_morus1280_##id##_dec_tail, \
.final = crypto_morus1280_##id##_final, \
}; \
\
static int crypto_morus1280_##id##_init_tfm(struct crypto_aead *tfm) \
{ \
crypto_morus1280_glue_init_ops(tfm, &crypto_morus1280_##id##_ops); \
return 0; \
} \
\
static void crypto_morus1280_##id##_exit_tfm(struct crypto_aead *tfm) \
{ \
} \
\
struct aead_alg crypto_morus1280_##id##_algs[] = {\
{ \
.setkey = crypto_morus1280_glue_setkey, \
.setauthsize = crypto_morus1280_glue_setauthsize, \
.encrypt = crypto_morus1280_glue_encrypt, \
.decrypt = crypto_morus1280_glue_decrypt, \
.init = crypto_morus1280_##id##_init_tfm, \
.exit = crypto_morus1280_##id##_exit_tfm, \
\
.ivsize = MORUS_NONCE_SIZE, \