79 lines
1.7 KiB
C
79 lines
1.7 KiB
C
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// Copyright 2023 Dexter.Wan. All Rights Reserved.
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// EMail: 45141961@qq.com
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#if !defined(SHA1_H)
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#define SHA1_H
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#if defined(OPENSSL)
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#include <openssl/sha.h>
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/** SHA-1 Digest Length */
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#define SHA1_DIGEST_LENGTH SHA_DIGEST_LENGTH
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#else /* if defined(OPENSSL) */
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#if defined(_WIN32) || defined(_WIN64)
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#include <windows.h>
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#include <wincrypt.h>
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typedef struct SHA_CTX_S
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{
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HCRYPTPROV hProv;
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HCRYPTHASH hHash;
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} SHA_CTX;
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#else /* if defined(_WIN32) || defined(_WIN64) */
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#include <stdint.h>
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typedef struct SHA_CTX_S {
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uint32_t h[5];
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union {
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uint32_t w[16];
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uint8_t buffer[64];
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};
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unsigned int size;
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unsigned int total;
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} SHA_CTX;
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#endif /* else if defined(_WIN32) || defined(_WIN64) */
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#include <stddef.h>
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/** SHA-1 Digest Length (number of bytes in SHA1) */
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#define SHA1_DIGEST_LENGTH (160/8)
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/**
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* Initializes the SHA1 hashing algorithm
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*
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* @param[in,out] ctx hashing context structure
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*
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* @see MQTT_SHA1_Update
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* @see MQTT_SHA1_Final
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*/
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int MQTT_SHA1_Init(SHA_CTX *ctx);
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/**
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* Updates a block to the SHA1 hash
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*
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* @param[in,out] ctx hashing context structure
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* @param[in] data block of data to hash
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* @param[in] len length of block to hash
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*
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* @see MQTT_SHA1_Init
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* @see MQTT_SHA1_Final
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*/
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int MQTT_SHA1_Update(SHA_CTX *ctx, const void *data, size_t len);
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/**
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* Produce final SHA1 hash
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*
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* @param[out] md SHA1 hash produced (must be atleast
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* @p SHA1_DIGEST_LENGTH in length)
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* @param[in,out] ctx hashing context structure
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*
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* @see MQTT_SHA1_Init
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* @see MQTT_SHA1_Final
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*/
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int MQTT_SHA1_Final(unsigned char *md, SHA_CTX *ctx);
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#endif /* if defined(OPENSSL) */
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#endif /* SHA1_H */
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