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107 lines
2.5 KiB
C
107 lines
2.5 KiB
C
/*
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* Copyright (c) 2022-2024, ArtInChip Technology Co., Ltd
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Authors: Xiong Hao <hao.xiong@artinchip.com>
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*/
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#ifndef __SKCIPHER_H
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#define __SKCIPHER_H
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#include <aic_common.h>
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#define CRYPTO_MAX_ALG_NAME 128
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struct skcipher_tfm {
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struct skcipher_alg *alg;
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void *__crt_ctx;
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};
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struct skcipher_request {
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unsigned int cryptlen;
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unsigned char *iv;
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void *src;
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void *dst;
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void *__ctx;
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};
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struct aic_skcipher_handle {
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struct skcipher_tfm *tfm;
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struct skcipher_request *req;
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};
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struct crypto_alg {
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u32 cra_flags;
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unsigned int cra_blocksize;
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unsigned int cra_ctxsize;
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unsigned int cra_alignmask;
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int cra_priority;
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char cra_name[CRYPTO_MAX_ALG_NAME];
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char cra_driver_name[CRYPTO_MAX_ALG_NAME];
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int (*cra_init)(struct aic_skcipher_handle *handle);
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void (*cra_exit)(struct aic_skcipher_handle *handle);
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void (*cra_destroy)(struct crypto_alg *alg);
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};
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struct skcipher_alg {
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int (*setkey)(struct aic_skcipher_handle *handle, const u8 *key,
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unsigned int keylen);
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int (*encrypt)(struct aic_skcipher_handle *handle);
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int (*decrypt)(struct aic_skcipher_handle *handle);
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int (*init)(struct aic_skcipher_handle *handle);
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void (*exit)(struct aic_skcipher_handle *handle);
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unsigned int min_keysize;
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unsigned int max_keysize;
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unsigned int ivsize;
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unsigned int chunksize;
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unsigned int walksize;
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struct crypto_alg base;
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};
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/*
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* Transform internal helpers.
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*/
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static inline struct skcipher_tfm *
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skcipher_handle_tfm(struct aic_skcipher_handle *handle)
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{
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return handle->tfm;
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}
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static inline struct skcipher_request *
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skcipher_handle_req(struct aic_skcipher_handle *handle)
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{
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return handle->req;
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}
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static inline void *skcipher_request_ctx(struct skcipher_request *req)
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{
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return req->__ctx;
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}
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static inline void *skcipher_tfm_ctx(struct skcipher_tfm *tfm)
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{
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return tfm->__crt_ctx;
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}
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static inline unsigned int skcipher_tfm_ivsize(struct skcipher_tfm *tfm)
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{
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return tfm->alg->ivsize;
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}
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static inline unsigned int skcipher_tfm_blocksize(struct skcipher_tfm *tfm)
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{
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return tfm->alg->base.cra_blocksize;
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}
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struct aic_skcipher_handle *aic_skcipher_init(const char *ciphername,
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u32 flags);
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void aic_skcipher_destroy(struct aic_skcipher_handle *handle);
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#endif
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