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// Copyright (c) 2016, Monero Research Labs
//
// Author: Shen Noether <shen.noether@gmx.com>
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "rctTypes.h"
using namespace crypto;
using namespace std;
#undef MONERO_DEFAULT_LOG_CATEGORY
#define MONERO_DEFAULT_LOG_CATEGORY "ringct"
namespace rct {
//dp
//Debug printing for the above types
//Actually use DP(value) and #define DBG
void dp(key a) {
int j = 0;
printf("\"");
for (j = 0; j < 32; j++) {
printf("%02x", (unsigned char)a.bytes[j]);
}
printf("\"");
printf("\n");
}
void dp(bool a) {
printf(" ... %s ... ", a ? "true" : "false");
printf("\n");
}
void dp(const char * a, int l) {
int j = 0;
printf("\"");
for (j = 0; j < l; j++) {
printf("%02x", (unsigned char)a[j]);
}
printf("\"");
printf("\n");
}
void dp(keyV a) {
size_t j = 0;
printf("[");
for (j = 0; j < a.size(); j++) {
dp(a[j]);
if (j < a.size() - 1) {
printf(",");
}
}
printf("]");
printf("\n");
}
void dp(keyM a) {
size_t j = 0;
printf("[");
for (j = 0; j < a.size(); j++) {
dp(a[j]);
if (j < a.size() - 1) {
printf(",");
}
}
printf("]");
printf("\n");
}
void dp(xmr_amount vali) {
printf("x: ");
std::cout << vali;
printf("\n\n");
}
void dp(int vali) {
printf("x: %d\n", vali);
printf("\n");
}
void dp(bits amountb) {
for (int i = 0; i < 64; i++) {
printf("%d", amountb[i]);
}
printf("\n");
}
void dp(const char * st) {
printf("%s\n", st);
}
//Various Conversions
//uint long long to 32 byte key
void d2h(key & amounth, const xmr_amount in) {
sc_0(amounth.bytes);
xmr_amount val = in;
int i = 0;
while (val != 0) {
amounth[i] = (unsigned char)(val & 0xFF);
i++;
val /= (xmr_amount)256;
}
}
//uint long long to 32 byte key
key d2h(const xmr_amount in) {
key amounth;
sc_0(amounth.bytes);
xmr_amount val = in;
int i = 0;
while (val != 0) {
amounth[i] = (unsigned char)(val & 0xFF);
i++;
val /= (xmr_amount)256;
}
return amounth;
}
//uint long long to int[64]
void d2b(bits amountb, xmr_amount val) {
int i = 0;
while (val != 0) {
amountb[i] = val & 1;
i++;
val >>= 1;
}
while (i < 64) {
amountb[i] = 0;
i++;
}
}
//32 byte key to uint long long
// if the key holds a value > 2^64
// then the value in the first 8 bytes is returned
xmr_amount h2d(const key & test) {
xmr_amount vali = 0;
int j = 0;
for (j = 7; j >= 0; j--) {
vali = (xmr_amount)(vali * 256 + (unsigned char)test.bytes[j]);
}
return vali;
}
//32 byte key to int[64]
void h2b(bits amountb2, const key & test) {
int val = 0, i = 0, j = 0;
for (j = 0; j < 8; j++) {
val = (unsigned char)test.bytes[j];
i = 8 * j;
while (val != 0) {
amountb2[i] = val & 1;
i++;
val >>= 1;
}
while (i < 8 * (j + 1)) {
amountb2[i] = 0;
i++;
}
}
}
//int[64] to 32 byte key
void b2h(key & amountdh, const bits amountb2) {
int byte, i, j;
for (j = 0; j < 8; j++) {
byte = 0;
i = 8 * j;
for (i = 7; i > -1; i--) {
byte = byte * 2 + amountb2[8 * j + i];
}
amountdh[j] = (unsigned char)byte;
}
for (j = 8; j < 32; j++) {
amountdh[j] = (unsigned char)(0x00);
}
}
//int[64] to uint long long
xmr_amount b2d(bits amountb) {
xmr_amount vali = 0;
int j = 0;
for (j = 63; j >= 0; j--) {
vali = (xmr_amount)(vali * 2 + amountb[j]);
}
return vali;
}
}
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