/* This code is public-domain - it is based on libcrypt * placed in the public domain by Wei Dai and other contributors. */ #include <stdint.h> #include <string.h> #define HASH_LENGTH 20 #define BLOCK_LENGTH 64 union _buffer { uint8_t b[BLOCK_LENGTH]; uint32_t w[BLOCK_LENGTH/4]; }; union _state { uint8_t b[HASH_LENGTH]; uint32_t w[HASH_LENGTH/4]; }; typedef struct sha1nfo { union _buffer buffer; uint8_t bufferOffset; union _state state; uint32_t byteCount; uint8_t keyBuffer[BLOCK_LENGTH]; uint8_t innerHash[HASH_LENGTH]; } sha1nfo; void sha1_init(sha1nfo *s); void sha1_writebyte(sha1nfo *s, uint8_t data); void sha1_write(sha1nfo *s, const char *data, size_t len); uint8_t* sha1_result(sha1nfo *s); void sha1_initHmac(sha1nfo *s, const uint8_t* key, int keyLength); uint8_t* sha1_resultHmac(sha1nfo *s);