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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")

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* This Source Code Form is subject to the terms of the Mozilla Public

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* License, v. 2.0. If a copy of the MPL was not distributed with this

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* file, you can obtain one at https://mozilla.org/MPL/2.0/.

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* See the COPYRIGHT file distributed with this work for additional

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* information regarding copyright ownership.

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/* $FreeBSD: src/sys/crypto/sha2/sha2.h,v 1.1.2.1 2001/07/03 11:01:36 ume Exp $ */

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/* $KAME: sha2.h,v 1.3 2001/03/12 08:27:48 itojun Exp $ */

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* sha2.h

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* Version 1.0.0beta1

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* Written by Aaron D. Gifford <me@aarongifford.com>

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* Redistribution and use in source and binary forms, with or without

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* modification, are permitted provided that the following conditions

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* are met:

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* 1. Redistributions of source code must retain the above copyright

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* notice, this list of conditions and the following disclaimer.

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* 2. Redistributions in binary form must reproduce the above copyright

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* notice, this list of conditions and the following disclaimer in the

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* documentation and/or other materials provided with the distribution.

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* 3. Neither the name of the copyright holder nor the names of contributors

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* may be used to endorse or promote products derived from this software

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* without specific prior written permission.

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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTOR(S) ``AS IS'' AND

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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) OR CONTRIBUTOR(S) BE LIABLE

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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

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* SUCH DAMAGE.

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#ifndef ISC_SHA2_H

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#define ISC_SHA2_H

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#include <inttypes.h>

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#include <isc/lang.h>

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#include <isc/platform.h>

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#include <isc/types.h>

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/*** SHA-224/256/384/512 Various Length Definitions ***********************/

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#define ISC_SHA224_BLOCK_LENGTH 64U

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#define ISC_SHA224_DIGESTLENGTH 28U

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#define ISC_SHA224_DIGESTSTRINGLENGTH (ISC_SHA224_DIGESTLENGTH * 2 + 1)

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#define ISC_SHA256_BLOCK_LENGTH 64U

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#define ISC_SHA256_DIGESTLENGTH 32U

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#define ISC_SHA256_DIGESTSTRINGLENGTH (ISC_SHA256_DIGESTLENGTH * 2 + 1)

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#define ISC_SHA384_BLOCK_LENGTH 128

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#define ISC_SHA384_DIGESTLENGTH 48U

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#define ISC_SHA384_DIGESTSTRINGLENGTH (ISC_SHA384_DIGESTLENGTH * 2 + 1)

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#define ISC_SHA512_BLOCK_LENGTH 128U

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#define ISC_SHA512_DIGESTLENGTH 64U

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#define ISC_SHA512_DIGESTSTRINGLENGTH (ISC_SHA512_DIGESTLENGTH * 2 + 1)

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/*** SHA-256/384/512 Context Structures *******************************/

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#if defined(ISC_PLATFORM_OPENSSLHASH)

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#include <openssl/opensslv.h>

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#include <openssl/evp.h>

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#endif

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#if defined(ISC_PLATFORM_OPENSSLHASH) && !defined(LIBRESSL_VERSION_NUMBER)

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typedef struct {

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EVP_MD_CTX *ctx;

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#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)

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EVP_MD_CTX _ctx;

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#endif

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} isc_sha2_t;

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typedef isc_sha2_t isc_sha256_t;

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typedef isc_sha2_t isc_sha512_t;

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#elif PKCS11CRYPTO

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#include <pk11/pk11.h>

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typedef pk11_context_t isc_sha256_t;

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typedef pk11_context_t isc_sha512_t;

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#else

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* Keep buffer immediately after bitcount to preserve alignment.

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typedef struct {

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uint32_t state[8];

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uint64_t bitcount;

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uint8_t buffer[ISC_SHA256_BLOCK_LENGTH];

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} isc_sha256_t;

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* Keep buffer immediately after bitcount to preserve alignment.

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typedef struct {

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uint64_t state[8];

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uint64_t bitcount[2];

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uint8_t buffer[ISC_SHA512_BLOCK_LENGTH];

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} isc_sha512_t;

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#endif

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typedef isc_sha256_t isc_sha224_t;

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typedef isc_sha512_t isc_sha384_t;

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ISC_LANG_BEGINDECLS

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/*** SHA-224/256/384/512 Function Prototypes ******************************/

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void isc_sha224_init (isc_sha224_t *);

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void isc_sha224_invalidate (isc_sha224_t *);

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void isc_sha224_update (isc_sha224_t *, const uint8_t *, size_t);

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void isc_sha224_final (uint8_t[ISC_SHA224_DIGESTLENGTH], isc_sha224_t *);

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char *isc_sha224_end (isc_sha224_t *, char[ISC_SHA224_DIGESTSTRINGLENGTH]);

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char *isc_sha224_data (const uint8_t *, size_t, char[ISC_SHA224_DIGESTSTRINGLENGTH]);

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void isc_sha256_init (isc_sha256_t *);

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void isc_sha256_invalidate (isc_sha256_t *);

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void isc_sha256_update (isc_sha256_t *, const uint8_t *, size_t);

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void isc_sha256_final (uint8_t[ISC_SHA256_DIGESTLENGTH], isc_sha256_t *);

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char *isc_sha256_end (isc_sha256_t *, char[ISC_SHA256_DIGESTSTRINGLENGTH]);

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char *isc_sha256_data (const uint8_t *, size_t, char[ISC_SHA256_DIGESTSTRINGLENGTH]);

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void isc_sha384_init (isc_sha384_t *);

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void isc_sha384_invalidate (isc_sha384_t *);

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void isc_sha384_update (isc_sha384_t *, const uint8_t *, size_t);

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void isc_sha384_final (uint8_t[ISC_SHA384_DIGESTLENGTH], isc_sha384_t *);

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char *isc_sha384_end (isc_sha384_t *, char[ISC_SHA384_DIGESTSTRINGLENGTH]);

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char *isc_sha384_data (const uint8_t *, size_t, char[ISC_SHA384_DIGESTSTRINGLENGTH]);

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void isc_sha512_init (isc_sha512_t *);

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void isc_sha512_invalidate (isc_sha512_t *);

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void isc_sha512_update (isc_sha512_t *, const uint8_t *, size_t);

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void isc_sha512_final (uint8_t[ISC_SHA512_DIGESTLENGTH], isc_sha512_t *);

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char *isc_sha512_end (isc_sha512_t *, char[ISC_SHA512_DIGESTSTRINGLENGTH]);

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char *isc_sha512_data (const uint8_t *, size_t, char[ISC_SHA512_DIGESTSTRINGLENGTH]);

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ISC_LANG_ENDDECLS

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#endif /* ISC_SHA2_H */

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