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hashes.h
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#pragma once
#include <cstdint>
#include <cstring>
#include <assert.h>
#include <cstdio>
#include "Output.h"
namespace BLOCKCHAIN_RIPEMD160
{
/********************************************************************/
/* macro definitions */
/* collect four bytes into one word: */
#define BYTES_TO_DWORD(strptr) \
(((uint32_t) *((strptr)+3) << 24) | \
((uint32_t) *((strptr)+2) << 16) | \
((uint32_t) *((strptr)+1) << 8) | \
((uint32_t) *(strptr)))
/* ROL(x, n) cyclically rotates x over n bits to the left */
/* x must be of an unsigned 32 bits type and 0 <= n < 32. */
#define ROL(x, n) (((x) << (n)) | ((x) >> (32-(n))))
/* the five basic functions F(), G() and H() */
#define F(x, y, z) ((x) ^ (y) ^ (z))
#define G(x, y, z) (((x) & (y)) | (~(x) & (z)))
#define H(x, y, z) (((x) | ~(y)) ^ (z))
#define I(x, y, z) (((x) & (z)) | ((y) & ~(z)))
#define J(x, y, z) ((x) ^ ((y) | ~(z)))
/* the ten basic operations FF() through III() */
#define FF(a, b, c, d, e, x, s) {\
(a) += F((b), (c), (d)) + (x);\
(a) = ROL((a), (s)) + (e);\
(c) = ROL((c), 10);\
}
#define GG(a, b, c, d, e, x, s) {\
(a) += G((b), (c), (d)) + (x) + 0x5a827999UL;\
(a) = ROL((a), (s)) + (e);\
(c) = ROL((c), 10);\
}
#define HH(a, b, c, d, e, x, s) {\
(a) += H((b), (c), (d)) + (x) + 0x6ed9eba1UL;\
(a) = ROL((a), (s)) + (e);\
(c) = ROL((c), 10);\
}
#define II(a, b, c, d, e, x, s) {\
(a) += I((b), (c), (d)) + (x) + 0x8f1bbcdcUL;\
(a) = ROL((a), (s)) + (e);\
(c) = ROL((c), 10);\
}
#define JJ(a, b, c, d, e, x, s) {\
(a) += J((b), (c), (d)) + (x) + 0xa953fd4eUL;\
(a) = ROL((a), (s)) + (e);\
(c) = ROL((c), 10);\
}
#define FFF(a, b, c, d, e, x, s) {\
(a) += F((b), (c), (d)) + (x);\
(a) = ROL((a), (s)) + (e);\
(c) = ROL((c), 10);\
}
#define GGG(a, b, c, d, e, x, s) {\
(a) += G((b), (c), (d)) + (x) + 0x7a6d76e9UL;\
(a) = ROL((a), (s)) + (e);\
(c) = ROL((c), 10);\
}
#define HHH(a, b, c, d, e, x, s) {\
(a) += H((b), (c), (d)) + (x) + 0x6d703ef3UL;\
(a) = ROL((a), (s)) + (e);\
(c) = ROL((c), 10);\
}
#define III(a, b, c, d, e, x, s) {\
(a) += I((b), (c), (d)) + (x) + 0x5c4dd124UL;\
(a) = ROL((a), (s)) + (e);\
(c) = ROL((c), 10);\
}
#define JJJ(a, b, c, d, e, x, s) {\
(a) += J((b), (c), (d)) + (x) + 0x50a28be6UL;\
(a) = ROL((a), (s)) + (e);\
(c) = ROL((c), 10);\
}
/********************************************************************/
/* function prototypes */
void MDinit(uint32_t *MDbuf);
/*
* initializes MDbuffer to "magic constants"
*/
void compress(uint32_t *MDbuf, uint32_t *X);
/*
* the compression function.
* transforms MDbuf using message bytes X[0] through X[15]
*/
void MDfinish(uint32_t *MDbuf,const uint8_t *strptr, uint32_t lswlen, uint32_t mswlen);
/*
* puts bytes from strptr into X and pad out; appends length
* and finally, compresses the last block(s)
* note: length in bits == 8 * (lswlen + 2^32 mswlen).
* note: there are (lswlen mod 64) bytes left in strptr.
*/
/********************************************************************/
void MDinit(uint32_t *MDbuf)
{
MDbuf[0] = 0x67452301UL;
MDbuf[1] = 0xefcdab89UL;
MDbuf[2] = 0x98badcfeUL;
MDbuf[3] = 0x10325476UL;
MDbuf[4] = 0xc3d2e1f0UL;
return;
}
/********************************************************************/
void compress(uint32_t *MDbuf, uint32_t *X)
{
uint32_t aa = MDbuf[0], bb = MDbuf[1], cc = MDbuf[2],
dd = MDbuf[3], ee = MDbuf[4];
uint32_t aaa = MDbuf[0], bbb = MDbuf[1], ccc = MDbuf[2],
ddd = MDbuf[3], eee = MDbuf[4];
/* round 1 */
FF(aa, bb, cc, dd, ee, X[ 0], 11);
FF(ee, aa, bb, cc, dd, X[ 1], 14);
FF(dd, ee, aa, bb, cc, X[ 2], 15);
FF(cc, dd, ee, aa, bb, X[ 3], 12);
FF(bb, cc, dd, ee, aa, X[ 4], 5);
FF(aa, bb, cc, dd, ee, X[ 5], 8);
FF(ee, aa, bb, cc, dd, X[ 6], 7);
FF(dd, ee, aa, bb, cc, X[ 7], 9);
FF(cc, dd, ee, aa, bb, X[ 8], 11);
FF(bb, cc, dd, ee, aa, X[ 9], 13);
FF(aa, bb, cc, dd, ee, X[10], 14);
FF(ee, aa, bb, cc, dd, X[11], 15);
FF(dd, ee, aa, bb, cc, X[12], 6);
FF(cc, dd, ee, aa, bb, X[13], 7);
FF(bb, cc, dd, ee, aa, X[14], 9);
FF(aa, bb, cc, dd, ee, X[15], 8);
/* round 2 */
GG(ee, aa, bb, cc, dd, X[ 7], 7);
GG(dd, ee, aa, bb, cc, X[ 4], 6);
GG(cc, dd, ee, aa, bb, X[13], 8);
GG(bb, cc, dd, ee, aa, X[ 1], 13);
GG(aa, bb, cc, dd, ee, X[10], 11);
GG(ee, aa, bb, cc, dd, X[ 6], 9);
GG(dd, ee, aa, bb, cc, X[15], 7);
GG(cc, dd, ee, aa, bb, X[ 3], 15);
GG(bb, cc, dd, ee, aa, X[12], 7);
GG(aa, bb, cc, dd, ee, X[ 0], 12);
GG(ee, aa, bb, cc, dd, X[ 9], 15);
GG(dd, ee, aa, bb, cc, X[ 5], 9);
GG(cc, dd, ee, aa, bb, X[ 2], 11);
GG(bb, cc, dd, ee, aa, X[14], 7);
GG(aa, bb, cc, dd, ee, X[11], 13);
GG(ee, aa, bb, cc, dd, X[ 8], 12);
/* round 3 */
HH(dd, ee, aa, bb, cc, X[ 3], 11);
HH(cc, dd, ee, aa, bb, X[10], 13);
HH(bb, cc, dd, ee, aa, X[14], 6);
HH(aa, bb, cc, dd, ee, X[ 4], 7);
HH(ee, aa, bb, cc, dd, X[ 9], 14);
HH(dd, ee, aa, bb, cc, X[15], 9);
HH(cc, dd, ee, aa, bb, X[ 8], 13);
HH(bb, cc, dd, ee, aa, X[ 1], 15);
HH(aa, bb, cc, dd, ee, X[ 2], 14);
HH(ee, aa, bb, cc, dd, X[ 7], 8);
HH(dd, ee, aa, bb, cc, X[ 0], 13);
HH(cc, dd, ee, aa, bb, X[ 6], 6);
HH(bb, cc, dd, ee, aa, X[13], 5);
HH(aa, bb, cc, dd, ee, X[11], 12);
HH(ee, aa, bb, cc, dd, X[ 5], 7);
HH(dd, ee, aa, bb, cc, X[12], 5);
/* round 4 */
II(cc, dd, ee, aa, bb, X[ 1], 11);
II(bb, cc, dd, ee, aa, X[ 9], 12);
II(aa, bb, cc, dd, ee, X[11], 14);
II(ee, aa, bb, cc, dd, X[10], 15);
II(dd, ee, aa, bb, cc, X[ 0], 14);
II(cc, dd, ee, aa, bb, X[ 8], 15);
II(bb, cc, dd, ee, aa, X[12], 9);
II(aa, bb, cc, dd, ee, X[ 4], 8);
II(ee, aa, bb, cc, dd, X[13], 9);
II(dd, ee, aa, bb, cc, X[ 3], 14);
II(cc, dd, ee, aa, bb, X[ 7], 5);
II(bb, cc, dd, ee, aa, X[15], 6);
II(aa, bb, cc, dd, ee, X[14], 8);
II(ee, aa, bb, cc, dd, X[ 5], 6);
II(dd, ee, aa, bb, cc, X[ 6], 5);
II(cc, dd, ee, aa, bb, X[ 2], 12);
/* round 5 */
JJ(bb, cc, dd, ee, aa, X[ 4], 9);
JJ(aa, bb, cc, dd, ee, X[ 0], 15);
JJ(ee, aa, bb, cc, dd, X[ 5], 5);
JJ(dd, ee, aa, bb, cc, X[ 9], 11);
JJ(cc, dd, ee, aa, bb, X[ 7], 6);
JJ(bb, cc, dd, ee, aa, X[12], 8);
JJ(aa, bb, cc, dd, ee, X[ 2], 13);
JJ(ee, aa, bb, cc, dd, X[10], 12);
JJ(dd, ee, aa, bb, cc, X[14], 5);
JJ(cc, dd, ee, aa, bb, X[ 1], 12);
JJ(bb, cc, dd, ee, aa, X[ 3], 13);
JJ(aa, bb, cc, dd, ee, X[ 8], 14);
JJ(ee, aa, bb, cc, dd, X[11], 11);
JJ(dd, ee, aa, bb, cc, X[ 6], 8);
JJ(cc, dd, ee, aa, bb, X[15], 5);
JJ(bb, cc, dd, ee, aa, X[13], 6);
/* parallel round 1 */
JJJ(aaa, bbb, ccc, ddd, eee, X[ 5], 8);
JJJ(eee, aaa, bbb, ccc, ddd, X[14], 9);
JJJ(ddd, eee, aaa, bbb, ccc, X[ 7], 9);
JJJ(ccc, ddd, eee, aaa, bbb, X[ 0], 11);
JJJ(bbb, ccc, ddd, eee, aaa, X[ 9], 13);
JJJ(aaa, bbb, ccc, ddd, eee, X[ 2], 15);
JJJ(eee, aaa, bbb, ccc, ddd, X[11], 15);
JJJ(ddd, eee, aaa, bbb, ccc, X[ 4], 5);
JJJ(ccc, ddd, eee, aaa, bbb, X[13], 7);
JJJ(bbb, ccc, ddd, eee, aaa, X[ 6], 7);
JJJ(aaa, bbb, ccc, ddd, eee, X[15], 8);
JJJ(eee, aaa, bbb, ccc, ddd, X[ 8], 11);
JJJ(ddd, eee, aaa, bbb, ccc, X[ 1], 14);
JJJ(ccc, ddd, eee, aaa, bbb, X[10], 14);
JJJ(bbb, ccc, ddd, eee, aaa, X[ 3], 12);
JJJ(aaa, bbb, ccc, ddd, eee, X[12], 6);
/* parallel round 2 */
III(eee, aaa, bbb, ccc, ddd, X[ 6], 9);
III(ddd, eee, aaa, bbb, ccc, X[11], 13);
III(ccc, ddd, eee, aaa, bbb, X[ 3], 15);
III(bbb, ccc, ddd, eee, aaa, X[ 7], 7);
III(aaa, bbb, ccc, ddd, eee, X[ 0], 12);
III(eee, aaa, bbb, ccc, ddd, X[13], 8);
III(ddd, eee, aaa, bbb, ccc, X[ 5], 9);
III(ccc, ddd, eee, aaa, bbb, X[10], 11);
III(bbb, ccc, ddd, eee, aaa, X[14], 7);
III(aaa, bbb, ccc, ddd, eee, X[15], 7);
III(eee, aaa, bbb, ccc, ddd, X[ 8], 12);
III(ddd, eee, aaa, bbb, ccc, X[12], 7);
III(ccc, ddd, eee, aaa, bbb, X[ 4], 6);
III(bbb, ccc, ddd, eee, aaa, X[ 9], 15);
III(aaa, bbb, ccc, ddd, eee, X[ 1], 13);
III(eee, aaa, bbb, ccc, ddd, X[ 2], 11);
/* parallel round 3 */
HHH(ddd, eee, aaa, bbb, ccc, X[15], 9);
HHH(ccc, ddd, eee, aaa, bbb, X[ 5], 7);
HHH(bbb, ccc, ddd, eee, aaa, X[ 1], 15);
HHH(aaa, bbb, ccc, ddd, eee, X[ 3], 11);
HHH(eee, aaa, bbb, ccc, ddd, X[ 7], 8);
HHH(ddd, eee, aaa, bbb, ccc, X[14], 6);
HHH(ccc, ddd, eee, aaa, bbb, X[ 6], 6);
HHH(bbb, ccc, ddd, eee, aaa, X[ 9], 14);
HHH(aaa, bbb, ccc, ddd, eee, X[11], 12);
HHH(eee, aaa, bbb, ccc, ddd, X[ 8], 13);
HHH(ddd, eee, aaa, bbb, ccc, X[12], 5);
HHH(ccc, ddd, eee, aaa, bbb, X[ 2], 14);
HHH(bbb, ccc, ddd, eee, aaa, X[10], 13);
HHH(aaa, bbb, ccc, ddd, eee, X[ 0], 13);
HHH(eee, aaa, bbb, ccc, ddd, X[ 4], 7);
HHH(ddd, eee, aaa, bbb, ccc, X[13], 5);
/* parallel round 4 */
GGG(ccc, ddd, eee, aaa, bbb, X[ 8], 15);
GGG(bbb, ccc, ddd, eee, aaa, X[ 6], 5);
GGG(aaa, bbb, ccc, ddd, eee, X[ 4], 8);
GGG(eee, aaa, bbb, ccc, ddd, X[ 1], 11);
GGG(ddd, eee, aaa, bbb, ccc, X[ 3], 14);
GGG(ccc, ddd, eee, aaa, bbb, X[11], 14);
GGG(bbb, ccc, ddd, eee, aaa, X[15], 6);
GGG(aaa, bbb, ccc, ddd, eee, X[ 0], 14);
GGG(eee, aaa, bbb, ccc, ddd, X[ 5], 6);
GGG(ddd, eee, aaa, bbb, ccc, X[12], 9);
GGG(ccc, ddd, eee, aaa, bbb, X[ 2], 12);
GGG(bbb, ccc, ddd, eee, aaa, X[13], 9);
GGG(aaa, bbb, ccc, ddd, eee, X[ 9], 12);
GGG(eee, aaa, bbb, ccc, ddd, X[ 7], 5);
GGG(ddd, eee, aaa, bbb, ccc, X[10], 15);
GGG(ccc, ddd, eee, aaa, bbb, X[14], 8);
/* parallel round 5 */
FFF(bbb, ccc, ddd, eee, aaa, X[12] , 8);
FFF(aaa, bbb, ccc, ddd, eee, X[15] , 5);
FFF(eee, aaa, bbb, ccc, ddd, X[10] , 12);
FFF(ddd, eee, aaa, bbb, ccc, X[ 4] , 9);
FFF(ccc, ddd, eee, aaa, bbb, X[ 1] , 12);
FFF(bbb, ccc, ddd, eee, aaa, X[ 5] , 5);
FFF(aaa, bbb, ccc, ddd, eee, X[ 8] , 14);
FFF(eee, aaa, bbb, ccc, ddd, X[ 7] , 6);
FFF(ddd, eee, aaa, bbb, ccc, X[ 6] , 8);
FFF(ccc, ddd, eee, aaa, bbb, X[ 2] , 13);
FFF(bbb, ccc, ddd, eee, aaa, X[13] , 6);
FFF(aaa, bbb, ccc, ddd, eee, X[14] , 5);
FFF(eee, aaa, bbb, ccc, ddd, X[ 0] , 15);
FFF(ddd, eee, aaa, bbb, ccc, X[ 3] , 13);
FFF(ccc, ddd, eee, aaa, bbb, X[ 9] , 11);
FFF(bbb, ccc, ddd, eee, aaa, X[11] , 11);
/* combine results */
ddd += cc + MDbuf[1]; /* final result for MDbuf[0] */
MDbuf[1] = MDbuf[2] + dd + eee;
MDbuf[2] = MDbuf[3] + ee + aaa;
MDbuf[3] = MDbuf[4] + aa + bbb;
MDbuf[4] = MDbuf[0] + bb + ccc;
MDbuf[0] = ddd;
return;
}
/********************************************************************/
void MDfinish(uint32_t *MDbuf,const uint8_t *strptr, uint32_t lswlen, uint32_t mswlen)
{
unsigned int i; /* counter */
uint32_t X[16]; /* message words */
memset(X, 0, 16*sizeof(uint32_t));
/* put bytes from strptr into X */
for (i=0; i<(lswlen&63); i++) {
/* uint8_t i goes into word X[i div 4] at pos. 8*(i mod 4) */
X[i>>2] ^= (uint32_t) *strptr++ << (8 * (i&3));
}
/* append the bit m_n == 1 */
X[(lswlen>>2)&15] ^= (uint32_t)1 << (8*(lswlen&3) + 7);
if ((lswlen & 63) > 55) {
/* length goes to next block */
compress(MDbuf, X);
memset(X, 0, 16*sizeof(uint32_t));
}
/* append length in bits*/
X[14] = lswlen << 3;
X[15] = (lswlen >> 29) | (mswlen << 3);
compress(MDbuf, X);
return;
}
#define RMDsize 160
void computeRIPEMD160(const void *_message,uint32_t length,uint8_t hashcode[20])
/*
* returns RMD(message)
* message should be a string terminated by '\0'
*/
{
const uint8_t *message = (const uint8_t *)_message;
uint32_t MDbuf[RMDsize/32]; /* contains (A, B, C, D(, E)) */
uint32_t X[16]; /* current 16-word chunk */
/* initialize */
MDinit(MDbuf);
/* process message in 16-word chunks */
for (uint32_t nbytes=length; nbytes > 63; nbytes-=64)
{
for (uint32_t i=0; i<16; i++)
{
X[i] = BYTES_TO_DWORD(message);
message += 4;
}
compress(MDbuf, X);
} /* length mod 64 bytes left */
/* finish: */
MDfinish(MDbuf, message, length, 0);
for (uint32_t i=0; i<RMDsize/8; i+=4)
{
hashcode[i] = (uint8_t)(MDbuf[i>>2]); /* implicit cast to uint8_t */
hashcode[i+1] = (uint8_t)(MDbuf[i>>2] >> 8); /* extracts the 8 least */
hashcode[i+2] = (uint8_t)(MDbuf[i>>2] >> 16); /* significant bits. */
hashcode[i+3] = (uint8_t)(MDbuf[i>>2] >> 24);
}
}
}; // end of RIPEMD160 hash
//********** Beginning of source code for SHA256 hash
namespace BLOCKCHAIN_SHA256
{
#define SHA256_HASH_SIZE 32 /* 256 bit */
#define SHA256_HASH_WORDS 8
#define SHA256_UNROLL 64 // This define determines how much loop unrolling is done when computing the hash;
// Uncomment this line of code if you want this snippet to compute the endian mode of your processor at run time; rather than at compile time.
//#define RUNTIME_ENDIAN
// Uncomment this line of code if you want this routine to compile for a big-endian processor
//#define WORDS_BIGENDIAN
typedef struct
{
uint64_t totalLength;
uint32_t hash[SHA256_HASH_WORDS];
uint32_t bufferLength;
union
{
uint32_t words[16];
uint8_t bytes[64];
} buffer;
} sha256_ctx_t;
void sha256_init(sha256_ctx_t * sc);
void sha256_update(sha256_ctx_t * sc, const void *data, uint32_t len);
void sha256_finalize(sha256_ctx_t * sc, uint8_t hash[SHA256_HASH_SIZE]);
#define ROTL(x, n) (((x) << (n)) | ((x) >> (32 - (n))))
#define ROTR(x, n) (((x) >> (n)) | ((x) << (32 - (n))))
#define Ch(x, y, z) ((z) ^ ((x) & ((y) ^ (z))))
#define Maj(x, y, z) (((x) & ((y) | (z))) | ((y) & (z)))
#define SIGMA0(x) (ROTR((x), 2) ^ ROTR((x), 13) ^ ROTR((x), 22))
#define SIGMA1(x) (ROTR((x), 6) ^ ROTR((x), 11) ^ ROTR((x), 25))
#define sigma0(x) (ROTR((x), 7) ^ ROTR((x), 18) ^ ((x) >> 3))
#define sigma1(x) (ROTR((x), 17) ^ ROTR((x), 19) ^ ((x) >> 10))
#define DO_ROUND() { \
t1 = h + SIGMA1(e) + Ch(e, f, g) + *(Kp++) + *(W++); \
t2 = SIGMA0(a) + Maj(a, b, c); \
h = g; \
g = f; \
f = e; \
e = d + t1; \
d = c; \
c = b; \
b = a; \
a = t1 + t2; \
}
static const uint32_t K[64] = {
0x428a2f98L, 0x71374491L, 0xb5c0fbcfL, 0xe9b5dba5L,
0x3956c25bL, 0x59f111f1L, 0x923f82a4L, 0xab1c5ed5L,
0xd807aa98L, 0x12835b01L, 0x243185beL, 0x550c7dc3L,
0x72be5d74L, 0x80deb1feL, 0x9bdc06a7L, 0xc19bf174L,
0xe49b69c1L, 0xefbe4786L, 0x0fc19dc6L, 0x240ca1ccL,
0x2de92c6fL, 0x4a7484aaL, 0x5cb0a9dcL, 0x76f988daL,
0x983e5152L, 0xa831c66dL, 0xb00327c8L, 0xbf597fc7L,
0xc6e00bf3L, 0xd5a79147L, 0x06ca6351L, 0x14292967L,
0x27b70a85L, 0x2e1b2138L, 0x4d2c6dfcL, 0x53380d13L,
0x650a7354L, 0x766a0abbL, 0x81c2c92eL, 0x92722c85L,
0xa2bfe8a1L, 0xa81a664bL, 0xc24b8b70L, 0xc76c51a3L,
0xd192e819L, 0xd6990624L, 0xf40e3585L, 0x106aa070L,
0x19a4c116L, 0x1e376c08L, 0x2748774cL, 0x34b0bcb5L,
0x391c0cb3L, 0x4ed8aa4aL, 0x5b9cca4fL, 0x682e6ff3L,
0x748f82eeL, 0x78a5636fL, 0x84c87814L, 0x8cc70208L,
0x90befffaL, 0xa4506cebL, 0xbef9a3f7L, 0xc67178f2L
};
#ifndef RUNTIME_ENDIAN
#ifdef WORDS_BIGENDIAN
#define BYTESWAP(x) (x)
#define BYTESWAP64(x) (x)
#else /* WORDS_BIGENDIAN */
#define BYTESWAP(x) ((ROTR((x), 8) & 0xff00ff00L) | \
(ROTL((x), 8) & 0x00ff00ffL))
#define BYTESWAP64(x) _byteswap64(x)
static inline uint64_t _byteswap64(uint64_t x)
{
uint32_t a = x >> 32;
uint32_t b = (uint32_t) x;
return ((uint64_t) BYTESWAP(b) << 32) | (uint64_t) BYTESWAP(a);
}
#endif /* WORDS_BIGENDIAN */
#else /* !RUNTIME_ENDIAN */
static int littleEndian;
#define BYTESWAP(x) _byteswap(x)
#define BYTESWAP64(x) _byteswap64(x)
#define _BYTESWAP(x) ((ROTR((x), 8) & 0xff00ff00L) | \
(ROTL((x), 8) & 0x00ff00ffL))
#define _BYTESWAP64(x) __byteswap64(x)
static inline uint64_t __byteswap64(uint64_t x)
{
uint32_t a = x >> 32;
uint32_t b = (uint32_t) x;
return ((uint64_t) _BYTESWAP(b) << 32) | (uint64_t) _BYTESWAP(a);
}
static inline uint32_t _byteswap(uint32_t x)
{
if (!littleEndian)
return x;
else
return _BYTESWAP(x);
}
static inline uint64_t _byteswap64(uint64_t x)
{
if (!littleEndian)
return x;
else
return _BYTESWAP64(x);
}
static inline void setEndian(void)
{
union {
uint32_t w;
uint8_t b[4];
} endian;
endian.w = 1L;
littleEndian = endian.b[0] != 0;
}
#endif /* !RUNTIME_ENDIAN */
static const uint8_t padding[64] = {
0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
void sha256_init(sha256_ctx_t * sc)
{
#ifdef RUNTIME_ENDIAN
setEndian();
#endif /* RUNTIME_ENDIAN */
sc->totalLength = 0LL;
sc->hash[0] = 0x6a09e667L;
sc->hash[1] = 0xbb67ae85L;
sc->hash[2] = 0x3c6ef372L;
sc->hash[3] = 0xa54ff53aL;
sc->hash[4] = 0x510e527fL;
sc->hash[5] = 0x9b05688cL;
sc->hash[6] = 0x1f83d9abL;
sc->hash[7] = 0x5be0cd19L;
sc->bufferLength = 0L;
}
static void burnStack(int size)
{
char buf[128];
memset(buf, 0, sizeof(buf));
size -= sizeof(buf);
if (size > 0)
burnStack(size);
}
static void SHA256Guts(sha256_ctx_t * sc, const uint32_t * cbuf)
{
uint32_t buf[64];
uint32_t *W, *W2, *W7, *W15, *W16;
uint32_t a, b, c, d, e, f, g, h;
uint32_t t1, t2;
const uint32_t *Kp;
int i;
W = buf;
for (i = 15; i >= 0; i--) {
*(W++) = BYTESWAP(*cbuf);
cbuf++;
}
W16 = &buf[0];
W15 = &buf[1];
W7 = &buf[9];
W2 = &buf[14];
for (i = 47; i >= 0; i--) {
*(W++) = sigma1(*W2) + *(W7++) + sigma0(*W15) + *(W16++);
W2++;
W15++;
}
a = sc->hash[0];
b = sc->hash[1];
c = sc->hash[2];
d = sc->hash[3];
e = sc->hash[4];
f = sc->hash[5];
g = sc->hash[6];
h = sc->hash[7];
Kp = K;
W = buf;
#ifndef SHA256_UNROLL
#define SHA256_UNROLL 1
#endif /* !SHA256_UNROLL */
#if SHA256_UNROLL == 1
for (i = 63; i >= 0; i--)
DO_ROUND();
#elif SHA256_UNROLL == 2
for (i = 31; i >= 0; i--) {
DO_ROUND();
DO_ROUND();
}
#elif SHA256_UNROLL == 4
for (i = 15; i >= 0; i--) {
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
}
#elif SHA256_UNROLL == 8
for (i = 7; i >= 0; i--) {
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
}
#elif SHA256_UNROLL == 16
for (i = 3; i >= 0; i--) {
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
}
#elif SHA256_UNROLL == 32
for (i = 1; i >= 0; i--) {
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
}
#elif SHA256_UNROLL == 64
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
DO_ROUND();
#else
#error "SHA256_UNROLL must be 1, 2, 4, 8, 16, 32, or 64!"
#endif
sc->hash[0] += a;
sc->hash[1] += b;
sc->hash[2] += c;
sc->hash[3] += d;
sc->hash[4] += e;
sc->hash[5] += f;
sc->hash[6] += g;
sc->hash[7] += h;
}
void sha256_update(sha256_ctx_t * sc, const void *data, uint32_t len)
{
uint32_t bufferBytesLeft;
uint32_t bytesToCopy;
int needBurn = 0;
if (sc->bufferLength)
{
bufferBytesLeft = 64L - sc->bufferLength;
bytesToCopy = bufferBytesLeft;
if (bytesToCopy > len)
{
bytesToCopy = len;
}
memcpy(&sc->buffer.bytes[sc->bufferLength], data, bytesToCopy);
sc->totalLength += bytesToCopy * 8L;
sc->bufferLength += bytesToCopy;
data = ((uint8_t *) data) + bytesToCopy;
len -= bytesToCopy;
if (sc->bufferLength == 64L)
{
SHA256Guts(sc, sc->buffer.words);
needBurn = 1;
sc->bufferLength = 0L;
}
}
while (len > 63L)
{
sc->totalLength += 512L;
SHA256Guts(sc, (const uint32_t *)data);
needBurn = 1;
data = ((uint8_t *) data) + 64L;
len -= 64L;
}
if (len)
{
memcpy(&sc->buffer.bytes[sc->bufferLength], data, len);
sc->totalLength += len * 8L;
sc->bufferLength += len;
}
if (needBurn)
{
burnStack(sizeof(uint32_t[74]) + sizeof(uint32_t *[6]) + sizeof(int));
}
}
void sha256_finalize(sha256_ctx_t * sc, uint8_t hash[SHA256_HASH_SIZE])
{
uint32_t bytesToPad;
uint64_t lengthPad;
int i;
bytesToPad = 120L - sc->bufferLength;
if (bytesToPad > 64L)
{
bytesToPad -= 64L;
}
lengthPad = BYTESWAP64(sc->totalLength);
sha256_update(sc, padding, bytesToPad);
sha256_update(sc, &lengthPad, 8L);
if (hash)
{
for (i = 0; i < SHA256_HASH_WORDS; i++)
{
*((uint32_t *) hash) = BYTESWAP(sc->hash[i]);
hash += 4;
}
}
}
void computeSHA256(const void *input,uint32_t size,uint8_t destHash[32])
{
sha256_ctx_t sc;
sha256_init(&sc);
sha256_update(&sc,input,size);
sha256_finalize(&sc,destHash);
}
void doubleSHA256(void* input, uint32_t size, uint8_t destHash[32]) {
uint8_t tmp[32];
BLOCKCHAIN_SHA256::computeSHA256(input, size, tmp);
BLOCKCHAIN_SHA256::computeSHA256(tmp, 32, destHash);
}
}; // End of the SHA-2556 namespace
// Begin of source to perform Base58 encode/decode
namespace BLOCKCHAIN_BASE58
{
//
// BigNumber.c
// cbitcoin
//
// Created by Matthew Mitchell on 28/04/2012.
// Copyright (c) 2012 Matthew Mitchell
//
// This file is part of cbitcoin.
//
// cbitcoin is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// cbitcoin is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with cbitcoin. If not, see <http://www.gnu.org/licenses/>.
//
//
#define MAX_BIG_NUMBER 256 // this code snippet only supports big nubmers up to 256 bytes in length
/**
@brief Contains byte data with the length of this data to represent a large integer. The byte data is in little-endian which stores the smallest byte first.
*/
class BigNumber
{
public:
BigNumber(const uint8_t *sourceData,uint32_t len)
{
assert(len<MAX_BIG_NUMBER);
memset(data,0,MAX_BIG_NUMBER);
if ( sourceData )
{
memcpy(data,sourceData,len);
}
length = len;
}
uint8_t data[MAX_BIG_NUMBER]; /**< The byte data. Should be little-endian */
uint32_t length; /**< The length of this data in bytes */
};
// Enums
enum BigNumberCompare
{
CB_COMPARE_MORE_THAN = 1,
CB_COMPARE_EQUAL = 0,
CB_COMPARE_LESS_THAN = -1,
};
/**
@brief Compares a BigNumber to an 8 bit integer. You can replicate "a op 58" as "BigNumberCompareToUInt8(a, 58) op 0" replacing "op" with a comparison operator.
@param a The first BigNumber
@returns The result of the comparison as a BigNumberCompare constant. Returns what a is in relation to b.
*/
BigNumberCompare BigNumberCompareTo58(BigNumber * a);
/**
@brief Compares two BigNumber. You can replicate "a op b" as "BigNumberCompare(a, b) op 0" replacing "op" with a comparison operator.
@param a The first BigNumber
@param b The second BigNumber
@returns The result of the comparison as a BigNumberCompare constant. Returns what a is in relation to b.
*/
BigNumberCompare BigNumberCompareToBigInt(BigNumber * a, BigNumber * b);
/**
@brief Calculates the result of an addition of a BigNumber structure by another BigNumber structure and the first BigNumber becomes this new figure. Like "a += b".
@param a A pointer to the BigNumber
@param b A pointer to the second BigNumber
@returns true on success, false on failure.
*/
bool BigNumberEqualsAdditionByBigInt(BigNumber * a, BigNumber * b);
/**
@brief Calculates the result of a division of a BigNumber structure by 58 and the BigNumber becomes this new figure. Like "a /= 58".
@param a A pointer to the BigNumber
@param ans A memory block the same size as the BigNumber data memory block to store temporary data in calculations. Should be set with zeros.
*/
void BigNumberEqualsDivisionBy58(BigNumber * a, uint8_t * ans);
/**
@brief Calculates the result of a multiplication of a BigNumber structure by an 8 bit integer and the BigNumber becomes this new figure. Like "a *= b".
@param a A pointer to the BigNumber
@param b An 8 bit integer
@returns true on success, false on failure
*/
bool BigNumberEqualsMultiplicationByUInt8(BigNumber * a, uint8_t b);
/**
@brief Calculates the result of a subtraction of a BigNumber structure with another BigNumber structure and the BigNumber becomes this new figure. Like "a -= b".
@param a A pointer to a BigNumber
@param b A pointer to a BigNumber
*/
void BigNumberEqualsSubtractionByBigInt(BigNumber * a, BigNumber * b);
/**
@brief Calculates the result of a subtraction of a BigNumber structure by an 8 bit integer and the BigNumber becomes this new figure. Like "a -= b".
@param a A pointer to the BigNumber
@param b An 8 bit integer
*/
void BigNumberEqualsSubtractionByUInt8(BigNumber * a, uint8_t b);
/**
@brief Assigns a BigNumber as the exponentiation of an unsigned 8 bit intger with another unsigned 8 bit integer. Like "a^b". Data must be freed.
@param bi The BigNumber. Preallocate this with at least one byte.
@param a The base
@param b The exponent.
@returns true on success, false on failure.
*/
bool BigNumberFromPowUInt8(BigNumber * bi, uint8_t a, uint8_t b);
/**
@brief Returns the result of a modulo of a BigNumber structure and 58. Like "a % 58".
@param a The BigNumber
@returns The result of the modulo operation as an 8 bit integer.
*/
uint8_t BigNumberModuloWith58(BigNumber * a);
/**
@brief Normalises a BigNumber so that there are no unnecessary trailing zeros.
@param a A pointer to the BigNumber
*/
void BigNumberNormalise(BigNumber * a);
BigNumberCompare BigNumberCompareTo58(BigNumber * a)