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#ifndef _SHA_H
#define _SHA_H
#include <inttypes.h>
/* The SHA block size and message digest sizes, in bytes */
#define SHA_DATASIZE 64
#define SHA_DATALEN 16
#define SHA_DIGESTSIZE 20
#define SHA_DIGESTLEN 5
/* The structure for storing SHA info */
struct SHA_CTX {
uint32_t digest[SHA_DIGESTLEN]; /* Message digest */
uint32_t count_l, count_h; /* 64-bit block count */
uint8_t block[SHA_DATASIZE]; /* SHA data buffer */
unsigned int index; /* index into buffer */
};
void SHA1_Init(struct SHA_CTX *ctx);
void SHA1_Update(struct SHA_CTX *ctx, const unsigned char *buffer, uint32_t len);
void SHA1_Final(unsigned char *s, struct SHA_CTX *ctx);
void sha_digest(struct SHA_CTX *ctx, unsigned char *s);
void sha_copy(struct SHA_CTX *dest, struct SHA_CTX *src);
#endif /* !_SHA_H */
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