forked from cory/tildefriends
72 lines
1.4 KiB
C
72 lines
1.4 KiB
C
/*
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* SHA1 internal definitions
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* Copyright (c) 2003-2005, Jouni Malinen <j@w1.fi>
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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/**
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** \defgroup sha1 SHA1
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** SHA1 API.
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** Adapted from
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** https://web.mit.edu/freebsd/head/contrib/wpa/src/crypto/sha1_i.h by Cory
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** McWilliams 2025-09-28.
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** @{
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*/
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#ifndef SHA1_I_H
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#define SHA1_I_H
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#include <inttypes.h>
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/**
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** SHA1 context struct.
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*/
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struct SHA1Context
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{
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/** SHA1 state. */
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uint32_t state[5];
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/** SHA1 count. */
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uint32_t count[2];
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/** SHA1 buffer. */
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unsigned char buffer[64];
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};
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/**
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** SHA1 context.
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*/
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typedef struct SHA1Context SHA1_CTX;
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/**
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** Initialize a SHA1 context.
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** @param context The context.
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*/
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void SHA1Init(struct SHA1Context* context);
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/**
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** Calculate an ongoing hash for a block of data.
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** @param context The SHA1 context.
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** @param data The data to hash.
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** @param len The length of data.
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*/
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void SHA1Update(struct SHA1Context* context, const void* data, uint32_t len);
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/**
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** Calculate the final hash digest.
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** @param digest Populated with the digest.
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** @param context The SHA1 context.
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*/
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void SHA1Final(unsigned char digest[20], struct SHA1Context* context);
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/**
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** Perform a SHA1 transformation.
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** @param state The SHA1 state.
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** @param buffer The data.
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*/
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void SHA1Transform(uint32_t state[5], const unsigned char buffer[64]);
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#endif /* SHA1_I_H */
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/** @} */
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