SHA256.h File Reference

#include <cstring>
#include <string>
#include <cstdio>

Go to the source code of this file.

Classes
class	SHA256

Macros
#define	SHA2_SHFR(x, n)    (x >> n)
#define	SHA2_ROTR(x, n)    ((x >> n) | (x << ((sizeof(x) << 3) - n)))
#define	SHA2_ROTL(x, n)    ((x << n) | (x >> ((sizeof(x) << 3) - n)))
#define	SHA2_CH(x, y, z)   ((x & y) ^ (~x & z))
#define	SHA2_MAJ(x, y, z)   ((x & y) ^ (x & z) ^ (y & z))
#define	SHA256_F1(x)   (SHA2_ROTR(x, 2) ^ SHA2_ROTR(x, 13) ^ SHA2_ROTR(x, 22))
#define	SHA256_F2(x)   (SHA2_ROTR(x, 6) ^ SHA2_ROTR(x, 11) ^ SHA2_ROTR(x, 25))
#define	SHA256_F3(x)   (SHA2_ROTR(x, 7) ^ SHA2_ROTR(x, 18) ^ SHA2_SHFR(x, 3))
#define	SHA256_F4(x)   (SHA2_ROTR(x, 17) ^ SHA2_ROTR(x, 19) ^ SHA2_SHFR(x, 10))
#define	SHA2_UNPACK32(x, str)
#define	SHA2_PACK32(str, x)

Functions
std::string	sha256 (std::string input)

Macro Definition Documentation

#define SHA256_F1

(

x

)

(SHA2_ROTR(x, 2) ^ SHA2_ROTR(x, 13) ^ SHA2_ROTR(x, 22))

Definition at line 65 of file SHA256.h.

Referenced by SHA256::transform().

#define SHA256_F2

(

x

)

(SHA2_ROTR(x, 6) ^ SHA2_ROTR(x, 11) ^ SHA2_ROTR(x, 25))

Definition at line 66 of file SHA256.h.

Referenced by SHA256::transform().

#define SHA256_F3

(

x

)

(SHA2_ROTR(x, 7) ^ SHA2_ROTR(x, 18) ^ SHA2_SHFR(x, 3))

Definition at line 67 of file SHA256.h.

Referenced by SHA256::transform().

#define SHA256_F4

(

x

)

(SHA2_ROTR(x, 17) ^ SHA2_ROTR(x, 19) ^ SHA2_SHFR(x, 10))

Definition at line 68 of file SHA256.h.

Referenced by SHA256::transform().

#define SHA2_CH	(		x,
			y,
			z
	)		((x & y) ^ (~x & z))

Definition at line 63 of file SHA256.h.

Referenced by SHA256::transform().

#define SHA2_MAJ	(		x,
			y,
			z
	)		((x & y) ^ (x & z) ^ (y & z))

Definition at line 64 of file SHA256.h.

Referenced by SHA256::transform().

#define SHA2_PACK32	(		str,
			x
	)

Value:

{                                             \
    *(x) =   ((uint32) *((str) + 3)      )    \
           | ((uint32) *((str) + 2) <<  8)    \
           | ((uint32) *((str) + 1) << 16)    \
           | ((uint32) *((str) + 0) << 24);   \
}

Definition at line 76 of file SHA256.h.

Referenced by SHA256::transform().

#define SHA2_ROTL	(		x,
			n
	)		((x << n) | (x >> ((sizeof(x) << 3) - n)))

Definition at line 62 of file SHA256.h.

#define SHA2_ROTR	(		x,
			n
	)		((x >> n) | (x << ((sizeof(x) << 3) - n)))

Definition at line 61 of file SHA256.h.

#define SHA2_SHFR	(		x,
			n
	)		(x >> n)

Definition at line 60 of file SHA256.h.

#define SHA2_UNPACK32	(		x,
			str
	)

Value:

{                                             \
    *((str) + 3) = (uint8) ((x)      );       \
    *((str) + 2) = (uint8) ((x) >>  8);       \
    *((str) + 1) = (uint8) ((x) >> 16);       \
    *((str) + 0) = (uint8) ((x) >> 24);       \
}

Definition at line 69 of file SHA256.h.

Referenced by SHA256::final().

Function Documentation

std::string sha256

(

std::string

input

)

Definition at line 146 of file SHA256.cc.