190feb4884
Changes the hash API to support accumulative hashing. Hash objects are created with "qcrypto_hash_new", updated with data with "qcrypto_hash_update", and the hash obtained with "qcrypto_hash_finalize". These changes bring the hashing API more in line with the hmac API. Signed-off-by: Alejandro Zeise <alejandro.zeise@seagate.com> [ clg: - Changed documentation "non-zero on error" -> "-1 on error" ] Signed-off-by: Cédric Le Goater <clg@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
/*
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* QEMU Crypto hash driver supports
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*
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* Copyright (c) 2024 Seagate Technology LLC and/or its Affiliates
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* Copyright (c) 2017 HUAWEI TECHNOLOGIES CO., LTD.
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*
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* Authors:
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* Longpeng(Mike) <longpeng2@huawei.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or
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* (at your option) any later version. See the COPYING file in the
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* top-level directory.
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*
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*/
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#ifndef QCRYPTO_HASHPRIV_H
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#define QCRYPTO_HASHPRIV_H
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#include "crypto/hash.h"
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typedef struct QCryptoHashDriver QCryptoHashDriver;
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struct QCryptoHashDriver {
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int (*hash_bytesv)(QCryptoHashAlgo alg,
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const struct iovec *iov,
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size_t niov,
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uint8_t **result,
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size_t *resultlen,
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Error **errp);
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QCryptoHash *(*hash_new)(QCryptoHashAlgo alg, Error **errp);
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int (*hash_update)(QCryptoHash *hash,
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const struct iovec *iov,
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size_t niov,
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Error **errp);
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int (*hash_finalize)(QCryptoHash *hash,
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uint8_t **result,
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size_t *resultlen,
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Error **errp);
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void (*hash_free)(QCryptoHash *hash);
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};
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extern QCryptoHashDriver qcrypto_hash_lib_driver;
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#ifdef CONFIG_AF_ALG
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#include "afalgpriv.h"
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extern QCryptoHashDriver qcrypto_hash_afalg_driver;
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#endif
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#endif
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