diff options
Diffstat (limited to 'include/crypto/skcipher.h')
| -rw-r--r-- | include/crypto/skcipher.h | 99 |
1 files changed, 3 insertions, 96 deletions
diff --git a/include/crypto/skcipher.h b/include/crypto/skcipher.h index e555294ed77f..37c164234d97 100644 --- a/include/crypto/skcipher.h +++ b/include/crypto/skcipher.h @@ -1,13 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Symmetric key ciphers. * * Copyright (c) 2007-2015 Herbert Xu <herbert@gondor.apana.org.au> - * - * 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_SKCIPHER_H @@ -293,66 +288,6 @@ static inline unsigned int crypto_sync_skcipher_ivsize( return crypto_skcipher_ivsize(&tfm->base); } -static inline unsigned int crypto_skcipher_alg_chunksize( - struct skcipher_alg *alg) -{ - if ((alg->base.cra_flags & CRYPTO_ALG_TYPE_MASK) == - CRYPTO_ALG_TYPE_BLKCIPHER) - return alg->base.cra_blocksize; - - if (alg->base.cra_ablkcipher.encrypt) - return alg->base.cra_blocksize; - - return alg->chunksize; -} - -static inline unsigned int crypto_skcipher_alg_walksize( - struct skcipher_alg *alg) -{ - if ((alg->base.cra_flags & CRYPTO_ALG_TYPE_MASK) == - CRYPTO_ALG_TYPE_BLKCIPHER) - return alg->base.cra_blocksize; - - if (alg->base.cra_ablkcipher.encrypt) - return alg->base.cra_blocksize; - - return alg->walksize; -} - -/** - * crypto_skcipher_chunksize() - obtain chunk size - * @tfm: cipher handle - * - * The block size is set to one for ciphers such as CTR. However, - * you still need to provide incremental updates in multiples of - * the underlying block size as the IV does not have sub-block - * granularity. This is known in this API as the chunk size. - * - * Return: chunk size in bytes - */ -static inline unsigned int crypto_skcipher_chunksize( - struct crypto_skcipher *tfm) -{ - return crypto_skcipher_alg_chunksize(crypto_skcipher_alg(tfm)); -} - -/** - * crypto_skcipher_walksize() - obtain walk size - * @tfm: cipher handle - * - * In some cases, algorithms can only perform optimally when operating on - * multiple blocks in parallel. This is reflected by the walksize, which - * must be a multiple of the chunksize (or equal if the concern does not - * apply) - * - * Return: walk size in bytes - */ -static inline unsigned int crypto_skcipher_walksize( - struct crypto_skcipher *tfm) -{ - return crypto_skcipher_alg_walksize(crypto_skcipher_alg(tfm)); -} - /** * crypto_skcipher_blocksize() - obtain block size of cipher * @tfm: cipher handle @@ -484,21 +419,7 @@ static inline struct crypto_sync_skcipher *crypto_sync_skcipher_reqtfm( * * Return: 0 if the cipher operation was successful; < 0 if an error occurred */ -static inline int crypto_skcipher_encrypt(struct skcipher_request *req) -{ - struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); - struct crypto_alg *alg = tfm->base.__crt_alg; - unsigned int cryptlen = req->cryptlen; - int ret; - - crypto_stats_get(alg); - if (crypto_skcipher_get_flags(tfm) & CRYPTO_TFM_NEED_KEY) - ret = -ENOKEY; - else - ret = tfm->encrypt(req); - crypto_stats_skcipher_encrypt(cryptlen, ret, alg); - return ret; -} +int crypto_skcipher_encrypt(struct skcipher_request *req); /** * crypto_skcipher_decrypt() - decrypt ciphertext @@ -511,21 +432,7 @@ static inline int crypto_skcipher_encrypt(struct skcipher_request *req) * * Return: 0 if the cipher operation was successful; < 0 if an error occurred */ -static inline int crypto_skcipher_decrypt(struct skcipher_request *req) -{ - struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req); - struct crypto_alg *alg = tfm->base.__crt_alg; - unsigned int cryptlen = req->cryptlen; - int ret; - - crypto_stats_get(alg); - if (crypto_skcipher_get_flags(tfm) & CRYPTO_TFM_NEED_KEY) - ret = -ENOKEY; - else - ret = tfm->decrypt(req); - crypto_stats_skcipher_decrypt(cryptlen, ret, alg); - return ret; -} +int crypto_skcipher_decrypt(struct skcipher_request *req); /** * DOC: Symmetric Key Cipher Request Handle |