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linux/drivers/crypto/atmel-authenc.h

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crypto: atmel - switch to SPDX license identifiers Adopt the SPDX license identifiers to ease license compliance management. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2018-08-21 13:36:09 +00:00
/* SPDX-License-Identifier: GPL-2.0 */
crypto: atmel-authenc - add support to authenc(hmac(shaX), Y(aes)) modes This patchs allows to combine the AES and SHA hardware accelerators on some Atmel SoCs. Doing so, AES blocks are only written to/read from the AES hardware. Those blocks are also transferred from the AES to the SHA accelerator internally, without additionnal accesses to the system busses. Hence, the AES and SHA accelerators work in parallel to process all the data blocks, instead of serializing the process by (de)crypting those blocks first then authenticating them after like the generic crypto/authenc.c driver does. Of course, both the AES and SHA hardware accelerators need to be available before we can start to process the data blocks. Hence we use their crypto request queue to synchronize both drivers. Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-01-26 16:07:56 +00:00
/*
* API for Atmel Secure Protocol Layers Improved Performances (SPLIP)
*
* Copyright (C) 2016 Atmel Corporation
*
* Author: Cyrille Pitchen <cyrille.pitchen@atmel.com>
*
* This driver is based on drivers/mtd/spi-nor/fsl-quadspi.c from Freescale.
*/
#ifndef __ATMEL_AUTHENC_H__
#define __ATMEL_AUTHENC_H__
crypto: atmel - Fix authenc support when it is set to m As it is if CONFIG_CRYPTO_DEV_ATMEL_AUTHENC is set to m it is in effect disabled. This patch fixes it by using IS_ENABLED instead of ifdef. Fixes: 89a82ef87e01 ("crypto: atmel-authenc - add support to...") Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-10-28 07:39:07 +00:00
#if IS_ENABLED(CONFIG_CRYPTO_DEV_ATMEL_AUTHENC)
crypto: atmel-authenc - add support to authenc(hmac(shaX), Y(aes)) modes This patchs allows to combine the AES and SHA hardware accelerators on some Atmel SoCs. Doing so, AES blocks are only written to/read from the AES hardware. Those blocks are also transferred from the AES to the SHA accelerator internally, without additionnal accesses to the system busses. Hence, the AES and SHA accelerators work in parallel to process all the data blocks, instead of serializing the process by (de)crypting those blocks first then authenticating them after like the generic crypto/authenc.c driver does. Of course, both the AES and SHA hardware accelerators need to be available before we can start to process the data blocks. Hence we use their crypto request queue to synchronize both drivers. Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-01-26 16:07:56 +00:00
#include <crypto/authenc.h>
#include <crypto/hash.h>
crypto: sha - split sha.h into sha1.h and sha2.h Currently <crypto/sha.h> contains declarations for both SHA-1 and SHA-2, and <crypto/sha3.h> contains declarations for SHA-3. This organization is inconsistent, but more importantly SHA-1 is no longer considered to be cryptographically secure. So to the extent possible, SHA-1 shouldn't be grouped together with any of the other SHA versions, and usage of it should be phased out. Therefore, split <crypto/sha.h> into two headers <crypto/sha1.h> and <crypto/sha2.h>, and make everyone explicitly specify whether they want the declarations for SHA-1, SHA-2, or both. This avoids making the SHA-1 declarations visible to files that don't want anything to do with SHA-1. It also prepares for potentially moving sha1.h into a new insecure/ or dangerous/ directory. Signed-off-by: Eric Biggers <ebiggers@google.com> Acked-by: Ard Biesheuvel <ardb@kernel.org> Acked-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-11-13 05:20:21 +00:00
#include <crypto/sha1.h>
#include <crypto/sha2.h>
crypto: atmel-authenc - add support to authenc(hmac(shaX), Y(aes)) modes This patchs allows to combine the AES and SHA hardware accelerators on some Atmel SoCs. Doing so, AES blocks are only written to/read from the AES hardware. Those blocks are also transferred from the AES to the SHA accelerator internally, without additionnal accesses to the system busses. Hence, the AES and SHA accelerators work in parallel to process all the data blocks, instead of serializing the process by (de)crypting those blocks first then authenticating them after like the generic crypto/authenc.c driver does. Of course, both the AES and SHA hardware accelerators need to be available before we can start to process the data blocks. Hence we use their crypto request queue to synchronize both drivers. Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-01-26 16:07:56 +00:00
#include "atmel-sha-regs.h"
struct atmel_aes_dev;
typedef int (*atmel_aes_authenc_fn_t)(struct atmel_aes_dev *, int, bool);
struct atmel_sha_authenc_ctx;
bool atmel_sha_authenc_is_ready(void);
unsigned int atmel_sha_authenc_get_reqsize(void);
struct atmel_sha_authenc_ctx *atmel_sha_authenc_spawn(unsigned long mode);
void atmel_sha_authenc_free(struct atmel_sha_authenc_ctx *auth);
int atmel_sha_authenc_setkey(struct atmel_sha_authenc_ctx *auth,
crypto: remove propagation of CRYPTO_TFM_RES_* flags The CRYPTO_TFM_RES_* flags were apparently meant as a way to make the ->setkey() functions provide more information about errors. But these flags weren't actually being used or tested, and in many cases they weren't being set correctly anyway. So they've now been removed. Also, if someone ever actually needs to start better distinguishing ->setkey() errors (which is somewhat unlikely, as this has been unneeded for a long time), we'd be much better off just defining different return values, like -EINVAL if the key is invalid for the algorithm vs. -EKEYREJECTED if the key was rejected by a policy like "no weak keys". That would be much simpler, less error-prone, and easier to test. So just remove CRYPTO_TFM_RES_MASK and all the unneeded logic that propagates these flags around. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2019-12-31 03:19:38 +00:00
const u8 *key, unsigned int keylen, u32 flags);
crypto: atmel-authenc - add support to authenc(hmac(shaX), Y(aes)) modes This patchs allows to combine the AES and SHA hardware accelerators on some Atmel SoCs. Doing so, AES blocks are only written to/read from the AES hardware. Those blocks are also transferred from the AES to the SHA accelerator internally, without additionnal accesses to the system busses. Hence, the AES and SHA accelerators work in parallel to process all the data blocks, instead of serializing the process by (de)crypting those blocks first then authenticating them after like the generic crypto/authenc.c driver does. Of course, both the AES and SHA hardware accelerators need to be available before we can start to process the data blocks. Hence we use their crypto request queue to synchronize both drivers. Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2017-01-26 16:07:56 +00:00
int atmel_sha_authenc_schedule(struct ahash_request *req,
struct atmel_sha_authenc_ctx *auth,
atmel_aes_authenc_fn_t cb,
struct atmel_aes_dev *dd);
int atmel_sha_authenc_init(struct ahash_request *req,
struct scatterlist *assoc, unsigned int assoclen,
unsigned int textlen,
atmel_aes_authenc_fn_t cb,
struct atmel_aes_dev *dd);
int atmel_sha_authenc_final(struct ahash_request *req,
u32 *digest, unsigned int digestlen,
atmel_aes_authenc_fn_t cb,
struct atmel_aes_dev *dd);
void atmel_sha_authenc_abort(struct ahash_request *req);
#endif /* CONFIG_CRYPTO_DEV_ATMEL_AUTHENC */
#endif /* __ATMEL_AUTHENC_H__ */
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