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205 lines
6.8 KiB
C
205 lines
6.8 KiB
C
/* MIT License
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*
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* Copyright (c) 2016-2022 INRIA, CMU and Microsoft Corporation
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* Copyright (c) 2022-2023 HACL* Contributors
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef __Hacl_Hash_SHA2_H
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#define __Hacl_Hash_SHA2_H
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#if defined(__cplusplus)
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extern "C" {
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#endif
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#include <string.h>
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#include "python_hacl_namespaces.h"
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#include "krml/types.h"
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#include "krml/lowstar_endianness.h"
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#include "krml/internal/target.h"
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#include "Hacl_Streaming_Types.h"
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typedef Hacl_Streaming_MD_state_32 Hacl_Streaming_SHA2_state_sha2_224;
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typedef Hacl_Streaming_MD_state_32 Hacl_Streaming_SHA2_state_sha2_256;
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typedef Hacl_Streaming_MD_state_64 Hacl_Streaming_SHA2_state_sha2_384;
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typedef Hacl_Streaming_MD_state_64 Hacl_Streaming_SHA2_state_sha2_512;
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/**
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Allocate initial state for the SHA2_256 hash. The state is to be freed by
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calling `free_256`.
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*/
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Hacl_Streaming_MD_state_32 *Hacl_Streaming_SHA2_create_in_256(void);
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/**
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Copies the state passed as argument into a newly allocated state (deep copy).
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The state is to be freed by calling `free_256`. Cloning the state this way is
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useful, for instance, if your control-flow diverges and you need to feed
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more (different) data into the hash in each branch.
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*/
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Hacl_Streaming_MD_state_32 *Hacl_Streaming_SHA2_copy_256(Hacl_Streaming_MD_state_32 *s0);
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/**
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Reset an existing state to the initial hash state with empty data.
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*/
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void Hacl_Streaming_SHA2_init_256(Hacl_Streaming_MD_state_32 *s);
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/**
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Feed an arbitrary amount of data into the hash. This function returns 0 for
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success, or 1 if the combined length of all of the data passed to `update_256`
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(since the last call to `init_256`) exceeds 2^61-1 bytes.
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This function is identical to the update function for SHA2_224.
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*/
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Hacl_Streaming_Types_error_code
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Hacl_Streaming_SHA2_update_256(
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Hacl_Streaming_MD_state_32 *p,
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uint8_t *input,
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uint32_t input_len
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);
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/**
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Write the resulting hash into `dst`, an array of 32 bytes. The state remains
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valid after a call to `finish_256`, meaning the user may feed more data into
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the hash via `update_256`. (The finish_256 function operates on an internal copy of
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the state and therefore does not invalidate the client-held state `p`.)
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*/
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void Hacl_Streaming_SHA2_finish_256(Hacl_Streaming_MD_state_32 *p, uint8_t *dst);
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/**
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Free a state allocated with `create_in_256`.
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This function is identical to the free function for SHA2_224.
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*/
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void Hacl_Streaming_SHA2_free_256(Hacl_Streaming_MD_state_32 *s);
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/**
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Hash `input`, of len `input_len`, into `dst`, an array of 32 bytes.
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*/
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void Hacl_Streaming_SHA2_hash_256(uint8_t *input, uint32_t input_len, uint8_t *dst);
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Hacl_Streaming_MD_state_32 *Hacl_Streaming_SHA2_create_in_224(void);
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void Hacl_Streaming_SHA2_init_224(Hacl_Streaming_MD_state_32 *s);
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Hacl_Streaming_Types_error_code
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Hacl_Streaming_SHA2_update_224(
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Hacl_Streaming_MD_state_32 *p,
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uint8_t *input,
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uint32_t input_len
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);
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/**
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Write the resulting hash into `dst`, an array of 28 bytes. The state remains
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valid after a call to `finish_224`, meaning the user may feed more data into
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the hash via `update_224`.
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*/
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void Hacl_Streaming_SHA2_finish_224(Hacl_Streaming_MD_state_32 *p, uint8_t *dst);
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void Hacl_Streaming_SHA2_free_224(Hacl_Streaming_MD_state_32 *p);
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/**
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Hash `input`, of len `input_len`, into `dst`, an array of 28 bytes.
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*/
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void Hacl_Streaming_SHA2_hash_224(uint8_t *input, uint32_t input_len, uint8_t *dst);
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Hacl_Streaming_MD_state_64 *Hacl_Streaming_SHA2_create_in_512(void);
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/**
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Copies the state passed as argument into a newly allocated state (deep copy).
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The state is to be freed by calling `free_512`. Cloning the state this way is
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useful, for instance, if your control-flow diverges and you need to feed
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more (different) data into the hash in each branch.
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*/
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Hacl_Streaming_MD_state_64 *Hacl_Streaming_SHA2_copy_512(Hacl_Streaming_MD_state_64 *s0);
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void Hacl_Streaming_SHA2_init_512(Hacl_Streaming_MD_state_64 *s);
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/**
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Feed an arbitrary amount of data into the hash. This function returns 0 for
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success, or 1 if the combined length of all of the data passed to `update_512`
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(since the last call to `init_512`) exceeds 2^125-1 bytes.
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This function is identical to the update function for SHA2_384.
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*/
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Hacl_Streaming_Types_error_code
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Hacl_Streaming_SHA2_update_512(
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Hacl_Streaming_MD_state_64 *p,
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uint8_t *input,
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uint32_t input_len
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);
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/**
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Write the resulting hash into `dst`, an array of 64 bytes. The state remains
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valid after a call to `finish_512`, meaning the user may feed more data into
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the hash via `update_512`. (The finish_512 function operates on an internal copy of
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the state and therefore does not invalidate the client-held state `p`.)
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*/
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void Hacl_Streaming_SHA2_finish_512(Hacl_Streaming_MD_state_64 *p, uint8_t *dst);
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/**
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Free a state allocated with `create_in_512`.
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This function is identical to the free function for SHA2_384.
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*/
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void Hacl_Streaming_SHA2_free_512(Hacl_Streaming_MD_state_64 *s);
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/**
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Hash `input`, of len `input_len`, into `dst`, an array of 64 bytes.
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*/
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void Hacl_Streaming_SHA2_hash_512(uint8_t *input, uint32_t input_len, uint8_t *dst);
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Hacl_Streaming_MD_state_64 *Hacl_Streaming_SHA2_create_in_384(void);
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void Hacl_Streaming_SHA2_init_384(Hacl_Streaming_MD_state_64 *s);
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Hacl_Streaming_Types_error_code
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Hacl_Streaming_SHA2_update_384(
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Hacl_Streaming_MD_state_64 *p,
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uint8_t *input,
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uint32_t input_len
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);
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/**
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Write the resulting hash into `dst`, an array of 48 bytes. The state remains
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valid after a call to `finish_384`, meaning the user may feed more data into
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the hash via `update_384`.
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*/
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void Hacl_Streaming_SHA2_finish_384(Hacl_Streaming_MD_state_64 *p, uint8_t *dst);
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void Hacl_Streaming_SHA2_free_384(Hacl_Streaming_MD_state_64 *p);
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/**
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Hash `input`, of len `input_len`, into `dst`, an array of 48 bytes.
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*/
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void Hacl_Streaming_SHA2_hash_384(uint8_t *input, uint32_t input_len, uint8_t *dst);
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#if defined(__cplusplus)
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}
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#endif
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#define __Hacl_Hash_SHA2_H_DEFINED
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#endif
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