SHA3.cpp File Reference

#include "SHA3.h"
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include "RLP.h"
#include "picosha2.h"

Include dependency graph for SHA3.cpp:

Go to the source code of this file.

Namespaces
	dev
	Adapted from code found on http://stackoverflow.com/questions/180947/base64-decode-snippet-in-c Originally by René Nyffenegger.
	dev::keccak

Macros
#define	decshake(bits)   int shake##bits(uint8_t*, size_t, const uint8_t*, size_t);
	libkeccak-tiny More...
#define	decsha3(bits)   int sha3_##bits(uint8_t*, size_t, const uint8_t*, size_t);
#define	rol(x, s)   (((x) << s) | ((x) >> (64 - s)))
#define	REPEAT6(e)   e e e e e e
#define	REPEAT24(e)   REPEAT6(e e e e)
#define	REPEAT5(e)   e e e e e
#define	FOR5(v, s, e)
#define	_(S)   do { S } while (0)
#define	FOR(i, ST, L, S)   _(for (size_t i = 0; i < L; i += ST) { S; })
#define	mkapply_ds(NAME, S)
#define	mkapply_sd(NAME, S)
#define	P   keccakf
#define	Plen   200
#define	foldP(I, L, F)
#define	defshake(bits)
#define	defsha3(bits)

Functions
	dev::keccak::decshake (128) decshake(256) decsha3(224) decsha3(256) decsha3(384) decsha3(512) static const uint8_t rho[24]
	dev::keccak::mkapply_ds (xorin, dst[i]^=src[i]) mkapply_sd(setout
bool	dev::sha3 (bytesConstRef _input, bytesRef o_output)
	Calculate SHA3-256 hash of the given input and load it into the given output. More...

Variables
h256	dev::EmptySHA3 = sha3(bytesConstRef())
h256	dev::EmptyListSHA3 = sha3(rlpList())

Detailed Description

Author

Gav Wood i@gav.nosp@m.wood.nosp@m..com

Date

2014

Definition in file SHA3.cpp.

Macro Definition Documentation

#define _

(

S

)

do { S } while (0)

Definition at line 132 of file SHA3.cpp.

#define decsha3

(

bits

)

int sha3_##bits(uint8_t*, size_t, const uint8_t*, size_t);

Definition at line 53 of file SHA3.cpp.

#define decshake

(

bits

)

int shake##bits(uint8_t*, size_t, const uint8_t*, size_t);

libkeccak-tiny

A single-file implementation of SHA-3 and SHAKE.

Implementor: David Leon Gil License: CC0, attribution kindly requested. Blame taken too, but not liability.

Definition at line 50 of file SHA3.cpp.

#define defsha3

(

bits

)

Value:

int sha3_##bits(uint8_t* out, size_t outlen,                    \
                                  const uint8_t* in, size_t inlen) {              \
	if (outlen > (bits/8)) {                                      \
          return -1;                                                  \
        }                                                             \
        return hash(out, outlen, in, inlen, 200 - (bits / 4), 0x01);  \
  }

#define defshake

(

bits

)

Value:

int shake##bits(uint8_t* out, size_t outlen,                    \
                                  const uint8_t* in, size_t inlen) {              \
        return hash(out, outlen, in, inlen, 200 - (bits / 4), 0x1f);  \
  }

#define foldP	(		I,
			L,
			F
	)

Value:

while (L >= rate) {  \
	F(a, I, rate);     \
	P(a);              \
	I += rate;         \
        L -= rate;         \
  }

#define FOR	(		i,
			ST,
			L,
			S
	)		_(for (size_t i = 0; i < L; i += ST) { S; })

Definition at line 133 of file SHA3.cpp.

#define FOR5	(		v,
			s,
			e
	)

Value:

v = 0;            \
  REPEAT5(e; v += s;)

Definition at line 89 of file SHA3.cpp.

#define mkapply_ds	(		NAME,
			S
	)

Value:

static inline void NAME(uint8_t* dst,                              \
                                                  const uint8_t* src,                        \
                                                  size_t len) {                              \
	FOR(i, 1, len, S);                                               \
  }

Definition at line 135 of file SHA3.cpp.

#define mkapply_sd	(		NAME,
			S
	)

Value:

static inline void NAME(const uint8_t* src,                        \
                                                  uint8_t* dst,                              \
                                                  size_t len) {                              \
	FOR(i, 1, len, S);                                               \
  }

Definition at line 141 of file SHA3.cpp.

#define P   keccakf

#define Plen   200

#define REPEAT24

(

e

)

REPEAT6(e e e e)

Definition at line 87 of file SHA3.cpp.

#define REPEAT5

(

e

)

e e e e e

Definition at line 88 of file SHA3.cpp.

#define REPEAT6

(

e

)

e e e e e e

Definition at line 86 of file SHA3.cpp.

#define rol	(		x,
			s
	)		(((x) << s) | ((x) >> (64 - s)))

Definition at line 85 of file SHA3.cpp.