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42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
/*********************************************************************
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* Filename: sha256.h
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* Author: Brad Conte (brad AT bradconte.com)
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* Copyright:
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* Disclaimer: This code is presented "as is" without any guarantees.
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* Details: Defines the API for the corresponding SHA1 implementation.
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*********************************************************************/
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#ifndef SHA256_H
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#define SHA256_H
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/*************************** HEADER FILES ***************************/
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#include <stddef.h>
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/****************************** MACROS ******************************/
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#define SHA256_BLOCK_SIZE 32 // SHA256 outputs a 32 byte digest
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/**************************** DATA TYPES ****************************/
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#ifdef _MSC_VER
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typedef unsigned __int8 uint8;
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typedef unsigned __int32 uint32;
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typedef unsigned __int64 uint64;
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#else
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#include <stdint.h>
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typedef uint8_t uint8;
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typedef uint32_t uint32;
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typedef uint64_t uint64;
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#endif
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typedef struct {
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uint8 data[64];
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uint32 datalen;
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uint64 bitlen;
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uint32 state[8];
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} SHA256_CTX;
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/*********************** FUNCTION DECLARATIONS **********************/
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void sha256_init(SHA256_CTX *ctx);
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void sha256_update(SHA256_CTX *ctx, const uint8 data[], size_t len);
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void sha256_final(SHA256_CTX *ctx, uint8 hash[]);
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#endif // SHA256_H
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