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64 lines
2.5 KiB
C
64 lines
2.5 KiB
C
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/*
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* Copyright 2007 The Android Open Source Project
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*
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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 are met:
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* * 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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* * 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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* * Neither the name of Google Inc. nor the names of its contributors may
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* be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY Google Inc. ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL Google Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SYSTEM_CORE_INCLUDE_MINCRYPT_HASH_INTERNAL_H_
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#define SYSTEM_CORE_INCLUDE_MINCRYPT_HASH_INTERNAL_H_
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif // __cplusplus
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struct HASH_CTX; // forward decl
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typedef struct HASH_VTAB {
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void (* const init)(struct HASH_CTX*);
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void (* const update)(struct HASH_CTX*, const void*, int);
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const uint8_t* (* const final)(struct HASH_CTX*);
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const uint8_t* (* const hash)(const void*, int, uint8_t*);
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int size;
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} HASH_VTAB;
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typedef struct HASH_CTX {
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const HASH_VTAB * f;
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uint64_t count;
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uint8_t buf[64];
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uint32_t state[8]; // upto SHA2
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} HASH_CTX;
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#define HASH_init(ctx) (ctx)->f->init(ctx)
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#define HASH_update(ctx, data, len) (ctx)->f->update(ctx, data, len)
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#define HASH_final(ctx) (ctx)->f->final(ctx)
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#define HASH_hash(data, len, digest) (ctx)->f->hash(data, len, digest)
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#define HASH_size(ctx) (ctx)->f->size
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#ifdef __cplusplus
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}
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#endif // __cplusplus
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#endif // SYSTEM_CORE_INCLUDE_MINCRYPT_HASH_INTERNAL_H_
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