include/linux/crypto.h

1 /* SPDX-License-Identifier: GPL-2.0-or-later */
54  * Set if the algorithm has passed automated run-time testing.  Note that
55  * if there is no run-time testing for a given algorithm it is considered
78  * Set if the algorithm has a ->setkey() method but can be used without
100  *	- The IV buffer and all scatterlist elements must be aligned to the
102  *	- If the data were to be divided into chunks of size
106  *	- The IV buffer and all scatterlist elements must be aligned to the
108  *	- The first scatterlist element must contain all the associated data,
110  *	- If the plaintext/ciphertext were to be divided into chunks of size
114  *	- crypto_ahash_finup() must not be used unless the algorithm implements
115  *	  ->finup() natively.
123  * not FIPS-approved but may instead be used to implement parts of
124  * a FIPS-approved algorithm (e.g., dh vs. ffdhe2048(dh)).
151  * faults for C data types.  On architectures that support non-cache coherent
155  * maintenance for non-coherent DMA (cache invalidation in particular) does not
193  * struct cipher_alg - single-block symmetric ciphers definition
196  *		     algorithm. This must be set to one of the pre-defined
202  *		    algorithm. This must be set to one of the pre-defined values
222  *		 API will re-align the buffers. The re-alignment means that a
230  *		 transformation context, the key might need to be re-programmed
237  * All fields are mandatory and must be filled.
251  * struct crypto_alg - definition of a cryptograpic cipher algorithm
254  *	       used for fine-tuning the description of the transformation
303  *	   filled with callbacks. This field might be empty. This is the case
316  * @cra_u.cipher: Union member which contains a single-block symmetric cipher
379 	case -EINPROGRESS:  in crypto_wait_req()
380 	case -EBUSY:  in crypto_wait_req()
381 		wait_for_completion(&wait->completion);  in crypto_wait_req()
382 		reinit_completion(&wait->completion);  in crypto_wait_req()
383 		err = wait->err;  in crypto_wait_req()
392 	init_completion(&wait->completion);  in crypto_init_wait()
401  * Transforms: user-instantiated objects which encapsulate algorithms
437 	return tfm->__crt_alg->cra_name;  in crypto_tfm_alg_name()
442 	return tfm->__crt_alg->cra_driver_name;  in crypto_tfm_alg_driver_name()
447 	return tfm->__crt_alg->cra_blocksize;  in crypto_tfm_alg_blocksize()
452 	return tfm->__crt_alg->cra_alignmask;  in crypto_tfm_alg_alignmask()
457 	return tfm->crt_flags;  in crypto_tfm_get_flags()
462 	tfm->crt_flags |= flags;  in crypto_tfm_set_flags()
467 	tfm->crt_flags &= ~flags;  in crypto_tfm_clear_flags()
473 	return __alignof__(tfm->__crt_ctx);  in crypto_tfm_ctx_alignment()
478 	req->err = -EINPROGRESS;  in crypto_reqchain_init()
479 	INIT_LIST_HEAD(&req->list);  in crypto_reqchain_init()
485 	req->err = -EINPROGRESS;  in crypto_request_chain()
486 	list_add_tail(&req->list, &head->list);  in crypto_request_chain()
491 	return tfm->__crt_alg->cra_flags & CRYPTO_ALG_ASYNC;  in crypto_tfm_is_async()