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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* The MORUS-640 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.
*/
#ifndef _CRYPTO_MORUS640_GLUE_H
#define _CRYPTO_MORUS640_GLUE_H
#include <linux/module.h>
#include <linux/types.h>
#include <crypto/algapi.h>
#include <crypto/aead.h>
#include <crypto/morus_common.h>
#define MORUS640_WORD_SIZE 4
#define MORUS640_BLOCK_SIZE (MORUS_BLOCK_WORDS * MORUS640_WORD_SIZE)
struct morus640_block {
u8 bytes[MORUS640_BLOCK_SIZE];
};
struct morus640_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 morus640_ctx {
const struct morus640_glue_ops *ops;
struct morus640_block key;
};
void crypto_morus640_glue_init_ops(struct crypto_aead *aead,
const struct morus640_glue_ops *ops);
int crypto_morus640_glue_setkey(struct crypto_aead *aead, const u8 *key,
unsigned int keylen);
int crypto_morus640_glue_setauthsize(struct crypto_aead *tfm,
unsigned int authsize);
int crypto_morus640_glue_encrypt(struct aead_request *req);
int crypto_morus640_glue_decrypt(struct aead_request *req);
#define MORUS640_DECLARE_ALG(id, driver_name, priority) \
static const struct morus640_glue_ops crypto_morus640_##id##_ops = {\
.init = crypto_morus640_##id##_init, \
.ad = crypto_morus640_##id##_ad, \
.enc = crypto_morus640_##id##_enc, \
.enc_tail = crypto_morus640_##id##_enc_tail, \
.dec = crypto_morus640_##id##_dec, \
.dec_tail = crypto_morus640_##id##_dec_tail, \
.final = crypto_morus640_##id##_final, \
}; \
\
static int crypto_morus640_##id##_init_tfm(struct crypto_aead *tfm) \
{ \
crypto_morus640_glue_init_ops(tfm, &crypto_morus640_##id##_ops); \
return 0; \
} \
\
static void crypto_morus640_##id##_exit_tfm(struct crypto_aead *tfm) \
{ \
} \
\
static struct aead_alg crypto_morus640_##id##_alg = {\
.setkey = crypto_morus640_glue_setkey, \
.setauthsize = crypto_morus640_glue_setauthsize, \
.encrypt = crypto_morus640_glue_encrypt, \
.decrypt = crypto_morus640_glue_decrypt, \
.init = crypto_morus640_##id##_init_tfm, \
.exit = crypto_morus640_##id##_exit_tfm, \
\
.ivsize = MORUS_NONCE_SIZE, \
.maxauthsize = MORUS_MAX_AUTH_SIZE, \
.chunksize = MORUS640_BLOCK_SIZE, \
\
.base = { \
.cra_flags = CRYPTO_ALG_INTERNAL, \
.cra_blocksize = 1, \
.cra_ctxsize = sizeof(struct morus640_ctx), \
.cra_alignmask = 0, \
.cra_priority = priority, \
\
.cra_name = "__morus640", \
.cra_driver_name = "__"driver_name, \
\
.cra_module = THIS_MODULE, \
} \
}
#endif /* _CRYPTO_MORUS640_GLUE_H */
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