utility.h File Reference

Declaration of utility functions for SHA256 hashing. More...

#include <cstdint>
#include <cstdio>
#include <cstdlib>

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Functions
uint64_t	to_big_endian (uint64_t n)
	Convert number from little endian to big endian.
uint32_t	to_little_endian (uint32_t n)
	Convert from big endian to little endian.
uint64_t	next_div_by (uint64_t n, uint64_t d)
	Return next number evenly divisible by specified number.
uint32_t	right_rotate (uint32_t x, uint32_t n)
	Right rotate bits of 32 bit integer numbers.
uint32_t	left_rotate (uint32_t x, uint32_t n)
	Left rotate bits of 32 bit integer numbers.
uint32_t	lshift (uint8_t n, uint8_t nshifts)
	Left shift of unsigned 8 bit int and conversion to 32 bit.
uint8_t *	alloc_padded (uint64_t size, uint64_t buffer_size, size_t *sz, uint8_t *tmpbuf)
	Allocate buffer of correct size for computing hash code.

Detailed Description

Declaration of utility functions for SHA256 hashing.