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Infinite-OTPV2.cpp
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Infinite-OTPV2.cpp
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#include <assert.h>
#include <chrono>
#include <cstdint>
#include <iomanip>
#include <iostream>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <strings.h>
#include <unistd.h>
#include <vector>
using namespace std;
bool CHECKASSERT = false;
#define DASSERT(cond) if (CHECKASSERT) { assert(cond); }
vector<uint16_t> substitutionTable;
vector<vector<uint16_t>> OTPs;
vector<uint16_t> superRearrangementTable;
vector<uint16_t> reverseSuperRearrangementTable;
constexpr uint32_t k1 = 1024;
constexpr uint32_t k4 = 4*k1;
constexpr uint32_t k64 = 64*k1;
void printVector(vector<uint16_t>& input, uint32_t start, uint32_t end) {
for(uint32_t i = start; i < end; ++i) {
cout << hex << input[i] << dec << " " << setw(3);
}
cout << endl;
}
void printVectorAsNibbles(vector<uint16_t>& input, uint32_t start, uint32_t end) {
cout << " ";
for(uint32_t i = start; i < end; ++i) {
for (uint32_t k = 0; k < 2; ++k) {
uint8_t val = *reinterpret_cast<uint8_t*>(input.data()+i);
cout << hex << (val & 0x0F) << dec << " " << setw(2);
cout << hex << ((val >> 4) & 0x0F) << dec << " " << setw(2);
}
if (i && i % 4 == 0) cout << endl;
}
cout << endl;
}
string convertDurationToString(chrono::duration<double, nano> nanoSeconds) {
uint64_t timeDuration = nanoSeconds.count();
if (timeDuration > 100000 && timeDuration < 100000*1000UL) {
return to_string(chrono::duration_cast<chrono::microseconds>(nanoSeconds).count()) + " microSeconds";
}
if (timeDuration > 100000*1000UL && timeDuration < uint64_t(100000*1000*1000UL)) {
return to_string(chrono::duration_cast<chrono::milliseconds>(nanoSeconds).count()) + " milliSeconds";
}
if (timeDuration > uint64_t(100000UL*1000*1000) && timeDuration < uint64_t(100000UL*1000*1000*60)) {
return to_string(chrono::duration_cast<chrono::seconds>(nanoSeconds).count()) + " seconds";
}
if (timeDuration > uint64_t(100000UL*1000*1000*60)) {
return to_string(chrono::duration_cast<chrono::minutes>(nanoSeconds).count()) + " minutes";
}
return to_string(chrono::duration_cast<chrono::nanoseconds>(nanoSeconds).count()) + " nanoSeconds";
}
class Timer {
chrono::high_resolution_clock::time_point startTime;
chrono::high_resolution_clock::time_point endTime;
chrono::duration<double, nano> duration;
chrono::duration<double, nano>& encryptionDuration;
const string desc;
public:
Timer(const string& desc, chrono::duration<double, nano>& encryptionDuration) : desc(desc), encryptionDuration(encryptionDuration) {
startTime = chrono::high_resolution_clock::now();
}
~Timer() {
endTime = chrono::high_resolution_clock::now();
duration = chrono::duration_cast<chrono::duration<double, nano>>(endTime - startTime);
encryptionDuration += duration;
cout << desc << convertDurationToString(duration) << endl;
}
};
void initializeSubstitutionTable() {
substitutionTable.resize(k64);
for(uint16_t i = 0; i < k64 / 2; ++i) {
substitutionTable[i] = (i + (k64/2));
substitutionTable[i + (k64/2)] = i;
}
}
uint16_t getSuperIndex(uint16_t j, uint16_t i) { // Note: i and j should be 1-indexed
uint16_t newIndex = i + (256 * (j - 1)) - 1;
return newIndex;
}
void initializeSuperRearrangementTable() {
superRearrangementTable.resize(256*32);
reverseSuperRearrangementTable.resize(256*32);
for(uint16_t i = 0; i < 256*32; ++i) {
uint16_t newInd = getSuperIndex((i % 32) + 1, (i / 32) + 1);
superRearrangementTable[i] = newInd;
reverseSuperRearrangementTable[newInd] = i;
}
}
void initializeOTPsections() {
uint32_t sectionCount = k64;
uint32_t sectionSize = 64 / sizeof(uint16_t); // each section is 64 bytes
OTPs.resize(sectionCount);
srand(0);
for (uint32_t i = 0; i < sectionCount; ++i) {
OTPs[i].resize(sectionSize);
for (uint32_t j = 0; j < sectionSize; ++j) {
OTPs[i][j] = rand();
}
}
}
#define SA(offset) (bptr1+offset)
#define SB(offset) (bptr1+8+offset)
#define SC(offset) (bptr1+16+offset)
#define SD(offset) (bptr1+24+offset)
#define SE(offset) (bptr1+32+offset)
#define SF(offset) (bptr1+40+offset)
#define SG(offset) (bptr1+48+offset)
#define SH(offset) (bptr1+56+offset)
void replaceFoldCycles(vector<uint16_t>& input, uint32_t start, uint32_t end, int numRounds, vector<uint16_t>& EPUK, uint32_t& startOTPSectionCount) {
if (end == 0) end = input.size();
DASSERT((end - start) == (k1 / (sizeof(uint16_t) * 8))); // input must be 1024 bits long
DASSERT(numRounds == 2 || numRounds == 4);
//cout << "Encryption input " << endl;
//printVector(input, 56, 65);
// chrono::duration<double, nano> duration;
int round = 1;
{
// Process 1st section of 128 bits
uint16_t* bptr1 = input.data()+start;
uint16_t va1 = substitutionTable[*SA(0)];
uint16_t va2 = substitutionTable[*SA(1)];
uint16_t va3 = substitutionTable[*SA(2)];
uint16_t va4 = substitutionTable[*SA(3)];
//cout << hex << "Substutited va1 to get new va1 : " << va1 << endl;
va2 ^= va1;
va3 ^= va2;
va4 ^= va3;
uint16_t va5 = substitutionTable[*SA(4)];
uint16_t va6 = substitutionTable[*SA(5)];
uint16_t va7 = substitutionTable[*SA(6)];
uint16_t va8 = substitutionTable[*SA(7)];
va5 ^= va4;
va6 ^= va5;
va7 ^= va6;
va8 ^= va7;
va1 ^= va8; //Circular-xor across section
uint64_t* ukptr1 = reinterpret_cast<uint64_t *>(EPUK.data()+start);
#define EPUK_SHORT(a) *(reinterpret_cast<uint16_t *>(ukptr1)+a)
va1 ^= EPUK_SHORT(0) ^ OTPs[EPUK[startOTPSectionCount]][0];
va2 ^= EPUK_SHORT(1) ^ OTPs[EPUK[startOTPSectionCount]][1];
va3 ^= EPUK_SHORT(2) ^ OTPs[EPUK[startOTPSectionCount]][2];
va4 ^= EPUK_SHORT(3) ^ OTPs[EPUK[startOTPSectionCount]][3];
va5 ^= EPUK_SHORT(4) ^ OTPs[EPUK[startOTPSectionCount]][4];
va6 ^= EPUK_SHORT(5) ^ OTPs[EPUK[startOTPSectionCount]][5];
va7 ^= EPUK_SHORT(6) ^ OTPs[EPUK[startOTPSectionCount]][6];
va8 ^= EPUK_SHORT(7) ^ OTPs[EPUK[startOTPSectionCount]][7];
// Process 2nd section of 128 bits
uint16_t vb1 = substitutionTable[*SB(0)];
uint16_t vb2 = substitutionTable[*SB(1)];
uint16_t vb3 = substitutionTable[*SB(2)];
uint16_t vb4 = substitutionTable[*SB(3)];
vb2 ^= vb1;
vb3 ^= vb2;
vb4 ^= vb3;
uint16_t vb5 = substitutionTable[*SB(4)];
uint16_t vb6 = substitutionTable[*SB(5)];
uint16_t vb7 = substitutionTable[*SB(6)];
uint16_t vb8 = substitutionTable[*SB(7)];
vb5 ^= vb4;
vb6 ^= vb5;
vb7 ^= vb6;
vb8 ^= vb7;
vb1 ^= vb8; //Circular-xor across section
vb1 ^= EPUK_SHORT(8) ^ OTPs[EPUK[startOTPSectionCount]][8];
vb2 ^= EPUK_SHORT(9) ^ OTPs[EPUK[startOTPSectionCount]][9];
vb3 ^= EPUK_SHORT(10) ^ OTPs[EPUK[startOTPSectionCount]][10];
vb4 ^= EPUK_SHORT(11) ^ OTPs[EPUK[startOTPSectionCount]][11];
vb5 ^= EPUK_SHORT(12) ^ OTPs[EPUK[startOTPSectionCount]][12];
vb6 ^= EPUK_SHORT(13) ^ OTPs[EPUK[startOTPSectionCount]][13];
vb7 ^= EPUK_SHORT(14) ^ OTPs[EPUK[startOTPSectionCount]][14];
vb8 ^= EPUK_SHORT(15) ^ OTPs[EPUK[startOTPSectionCount]][15];
// Process 3rd section of 128 bits
uint16_t vc1 = substitutionTable[*SC(0)];
uint16_t vc2 = substitutionTable[*SC(1)];
uint16_t vc3 = substitutionTable[*SC(2)];
uint16_t vc4 = substitutionTable[*SC(3)];
vc2 ^= vc1;
vc3 ^= vc2;
vc4 ^= vc3;
uint16_t vc5 = substitutionTable[*SC(4)];
uint16_t vc6 = substitutionTable[*SC(5)];
uint16_t vc7 = substitutionTable[*SC(6)];
uint16_t vc8 = substitutionTable[*SC(7)];
vc5 ^= vc4;
vc6 ^= vc5;
vc7 ^= vc6;
vc8 ^= vc7;
vc1 ^= vc8; //Circular-xor across section
vc1 ^= EPUK_SHORT(16) ^ OTPs[EPUK[startOTPSectionCount]][16];
vc2 ^= EPUK_SHORT(17) ^ OTPs[EPUK[startOTPSectionCount]][17];
vc3 ^= EPUK_SHORT(18) ^ OTPs[EPUK[startOTPSectionCount]][18];
vc4 ^= EPUK_SHORT(19) ^ OTPs[EPUK[startOTPSectionCount]][19];
vc5 ^= EPUK_SHORT(20) ^ OTPs[EPUK[startOTPSectionCount]][20];
vc6 ^= EPUK_SHORT(21) ^ OTPs[EPUK[startOTPSectionCount]][21];
vc7 ^= EPUK_SHORT(22) ^ OTPs[EPUK[startOTPSectionCount]][22];
vc8 ^= EPUK_SHORT(23) ^ OTPs[EPUK[startOTPSectionCount]][23];
// Process 4th section of 128 bits
uint16_t vd1 = substitutionTable[*SD(0)];
uint16_t vd2 = substitutionTable[*SD(1)];
uint16_t vd3 = substitutionTable[*SD(2)];
uint16_t vd4 = substitutionTable[*SD(3)];
vd2 ^= vd1;
vd3 ^= vd2;
vd4 ^= vd3;
uint16_t vd5 = substitutionTable[*SD(4)];
uint16_t vd6 = substitutionTable[*SD(5)];
uint16_t vd7 = substitutionTable[*SD(6)];
uint16_t vd8 = substitutionTable[*SD(7)];
vd5 ^= vd4;
vd6 ^= vd5;
vd7 ^= vd6;
vd8 ^= vd7;
vd1 ^= vd8; //Circular-xor across section
vd1 ^= EPUK_SHORT(24) ^ OTPs[EPUK[startOTPSectionCount]][24];
vd2 ^= EPUK_SHORT(25) ^ OTPs[EPUK[startOTPSectionCount]][25];
vd3 ^= EPUK_SHORT(26) ^ OTPs[EPUK[startOTPSectionCount]][26];
vd4 ^= EPUK_SHORT(27) ^ OTPs[EPUK[startOTPSectionCount]][27];
vd5 ^= EPUK_SHORT(28) ^ OTPs[EPUK[startOTPSectionCount]][28];
vd6 ^= EPUK_SHORT(29) ^ OTPs[EPUK[startOTPSectionCount]][29];
vd7 ^= EPUK_SHORT(30) ^ OTPs[EPUK[startOTPSectionCount]][30];
vd8 ^= EPUK_SHORT(31) ^ OTPs[EPUK[startOTPSectionCount]][31];
++startOTPSectionCount;
// Process 5th section of 128 bits
uint16_t ve1 = substitutionTable[*SE(0)];
uint16_t ve2 = substitutionTable[*SE(1)];
uint16_t ve3 = substitutionTable[*SE(2)];
uint16_t ve4 = substitutionTable[*SE(3)];
ve2 ^= ve1;
ve3 ^= ve2;
ve4 ^= ve3;
uint16_t ve5 = substitutionTable[*SE(4)];
uint16_t ve6 = substitutionTable[*SE(5)];
uint16_t ve7 = substitutionTable[*SE(6)];
uint16_t ve8 = substitutionTable[*SE(7)];
ve5 ^= ve4;
ve6 ^= ve5;
ve7 ^= ve6;
ve8 ^= ve7;
ve1 ^= ve8; //Circular-xor across section
ve1 ^= EPUK_SHORT(32) ^ OTPs[EPUK[startOTPSectionCount]][0];
ve2 ^= EPUK_SHORT(33) ^ OTPs[EPUK[startOTPSectionCount]][1];
ve3 ^= EPUK_SHORT(34) ^ OTPs[EPUK[startOTPSectionCount]][2];
ve4 ^= EPUK_SHORT(35) ^ OTPs[EPUK[startOTPSectionCount]][3];
ve5 ^= EPUK_SHORT(36) ^ OTPs[EPUK[startOTPSectionCount]][4];
ve6 ^= EPUK_SHORT(37) ^ OTPs[EPUK[startOTPSectionCount]][5];
ve7 ^= EPUK_SHORT(38) ^ OTPs[EPUK[startOTPSectionCount]][6];
ve8 ^= EPUK_SHORT(39) ^ OTPs[EPUK[startOTPSectionCount]][7];
// Process 6th section of 128 bits
uint16_t vf1 = substitutionTable[*SF(0)];
uint16_t vf2 = substitutionTable[*SF(1)];
uint16_t vf3 = substitutionTable[*SF(2)];
uint16_t vf4 = substitutionTable[*SF(3)];
vf2 ^= vf1;
vf3 ^= vf2;
vf4 ^= vf3;
uint16_t vf5 = substitutionTable[*SF(4)];
uint16_t vf6 = substitutionTable[*SF(5)];
uint16_t vf7 = substitutionTable[*SF(6)];
uint16_t vf8 = substitutionTable[*SF(7)];
vf5 ^= vf4;
vf6 ^= vf5;
vf7 ^= vf6;
vf8 ^= vf7;
vf1 ^= vf8; //Circular-xor across section
vf1 ^= EPUK_SHORT(40) ^ OTPs[EPUK[startOTPSectionCount]][8];
vf2 ^= EPUK_SHORT(41) ^ OTPs[EPUK[startOTPSectionCount]][9];
vf3 ^= EPUK_SHORT(42) ^ OTPs[EPUK[startOTPSectionCount]][10];
vf4 ^= EPUK_SHORT(43) ^ OTPs[EPUK[startOTPSectionCount]][11];
vf5 ^= EPUK_SHORT(44) ^ OTPs[EPUK[startOTPSectionCount]][12];
vf6 ^= EPUK_SHORT(45) ^ OTPs[EPUK[startOTPSectionCount]][13];
vf7 ^= EPUK_SHORT(46) ^ OTPs[EPUK[startOTPSectionCount]][14];
vf8 ^= EPUK_SHORT(47) ^ OTPs[EPUK[startOTPSectionCount]][15];
// Process 7th section of 128 bits
uint16_t vg1 = substitutionTable[*SG(0)];
uint16_t vg2 = substitutionTable[*SG(1)];
uint16_t vg3 = substitutionTable[*SG(2)];
uint16_t vg4 = substitutionTable[*SG(3)];
vg2 ^= vg1;
vg3 ^= vg2;
vg4 ^= vg3;
uint16_t vg5 = substitutionTable[*SG(4)];
uint16_t vg6 = substitutionTable[*SG(5)];
uint16_t vg7 = substitutionTable[*SG(6)];
uint16_t vg8 = substitutionTable[*SG(7)];
vg5 ^= vg4;
vg6 ^= vg5;
vg7 ^= vg6;
vg8 ^= vg7;
vg1 ^= vg8; //Circular-xor across section
vg1 ^= EPUK_SHORT(48) ^ OTPs[EPUK[startOTPSectionCount]][16];
vg2 ^= EPUK_SHORT(49) ^ OTPs[EPUK[startOTPSectionCount]][17];
vg3 ^= EPUK_SHORT(50) ^ OTPs[EPUK[startOTPSectionCount]][18];
vg4 ^= EPUK_SHORT(51) ^ OTPs[EPUK[startOTPSectionCount]][19];
vg5 ^= EPUK_SHORT(52) ^ OTPs[EPUK[startOTPSectionCount]][20];
vg6 ^= EPUK_SHORT(53) ^ OTPs[EPUK[startOTPSectionCount]][21];
vg7 ^= EPUK_SHORT(54) ^ OTPs[EPUK[startOTPSectionCount]][22];
vg8 ^= EPUK_SHORT(55) ^ OTPs[EPUK[startOTPSectionCount]][23];
// Process 8th section of 128 bits
uint16_t vh1 = substitutionTable[*SH(0)];
uint16_t vh2 = substitutionTable[*SH(1)];
uint16_t vh3 = substitutionTable[*SH(2)];
uint16_t vh4 = substitutionTable[*SH(3)];
vh2 ^= vh1;
vh3 ^= vh2;
vh4 ^= vh3;
uint16_t vh5 = substitutionTable[*SH(4)];
//cout << "1ENCRYPTION: starting vh5: " << hex << *SH(5) << " and substituted to: " << vh5 << dec << endl;
uint16_t vh6 = substitutionTable[*SH(5)];
//cout << "1ENCRYPTION: starting vh6: " << hex << *SH(6) << " and substituted to: " << vh6 << dec << endl;
uint16_t vh7 = substitutionTable[*SH(6)];
//cout << "1ENCRYPTION: starting vh7: " << hex << *SH(7) << " and substituted to: " << vh7 << dec << endl;
uint16_t vh8 = substitutionTable[*SH(7)];
//cout << "1ENCRYPTION: starting vh8: " << hex << *SH(8) << " and substituted to: " << vh8 << dec << endl;
vh5 ^= vh4;
//cout << "1ENCRYPTION: propogation xor vh5 with " << hex << vh4 << " to get " << vh5 << endl;
vh6 ^= vh5;
//cout << "1ENCRYPTION: propagation xor vh6 with " << hex << vh5 << " to get " << vh6 << endl;
vh7 ^= vh6;
//cout << "1ENCRYPTION: propagation xor vh7 with " << hex << vh6 << " to get " << vh7 << endl;
vh8 ^= vh7;
//cout << "1ENCRYPTION: propagation xor vh8 with " << hex << vh7 << " to get " << vh8 << endl;
vh1 ^= vh8; //Circular-xor across section
//cout << "1ENCRYPTION: circular xor vh1 with " << hex << vh8 << " to get " << vh1 << endl;
vh1 ^= EPUK_SHORT(56) ^ OTPs[EPUK[startOTPSectionCount]][24];
vh2 ^= EPUK_SHORT(57) ^ OTPs[EPUK[startOTPSectionCount]][25];
vh3 ^= EPUK_SHORT(58) ^ OTPs[EPUK[startOTPSectionCount]][26];
vh4 ^= EPUK_SHORT(59) ^ OTPs[EPUK[startOTPSectionCount]][27];
vh5 ^= EPUK_SHORT(60) ^ OTPs[EPUK[startOTPSectionCount]][28];
//cout << "1ENCRYPTION: PUK/OTP xor vh5 with " << hex << EPUK_SHORT(60) << " and " << OTPs[EPUK[startOTPSectionCount]][28] << "to get " << vh5 << endl;
vh6 ^= EPUK_SHORT(61) ^ OTPs[EPUK[startOTPSectionCount]][29];
//cout << "1ENCRYPTION: PUK/OTP xor vh6 with " << hex << EPUK_SHORT(61) << " and " << OTPs[EPUK[startOTPSectionCount]][29] << "to get " << vh6 << endl;
vh7 ^= EPUK_SHORT(62) ^ OTPs[EPUK[startOTPSectionCount]][30];
//cout << "1ENCRYPTION: PUK/OTP xor vh7 with " << hex << EPUK_SHORT(62) << " and " << OTPs[EPUK[startOTPSectionCount]][30] << "to get " << vh7 << endl;
vh8 ^= EPUK_SHORT(63) ^ OTPs[EPUK[startOTPSectionCount]][31];
//cout << "1ENCRYPTION: PUK/OTP xor vh8 with " << hex << EPUK_SHORT(63) << " and " << OTPs[EPUK[startOTPSectionCount]][31] << "to get " << vh8 << endl;
++startOTPSectionCount;
for (int i = 0; i < 3; ++i) {
++round;
// Section 1
va1 = substitutionTable[va1];
va2 = substitutionTable[va2];
va3 = substitutionTable[va3];
va4 = substitutionTable[va4];
va2 ^= va1;
va3 ^= va2;
va4 ^= va3;
va5 = substitutionTable[va5];
va6 = substitutionTable[va6];
va7 = substitutionTable[va7];
va8 = substitutionTable[va8];
va5 ^= va4;
va6 ^= va5;
va7 ^= va6;
va8 ^= va7;
va1 ^= va8; //Circular-xor across section
va1 ^= EPUK_SHORT(0) ^ OTPs[EPUK[startOTPSectionCount]][0];
va2 ^= EPUK_SHORT(1) ^ OTPs[EPUK[startOTPSectionCount]][1];
va3 ^= EPUK_SHORT(2) ^ OTPs[EPUK[startOTPSectionCount]][2];
va4 ^= EPUK_SHORT(3) ^ OTPs[EPUK[startOTPSectionCount]][3];
va5 ^= EPUK_SHORT(4) ^ OTPs[EPUK[startOTPSectionCount]][4];
va6 ^= EPUK_SHORT(5) ^ OTPs[EPUK[startOTPSectionCount]][5];
va7 ^= EPUK_SHORT(6) ^ OTPs[EPUK[startOTPSectionCount]][6];
va8 ^= EPUK_SHORT(7) ^ OTPs[EPUK[startOTPSectionCount]][7];
// Section 2
vb1 = substitutionTable[vb1];
vb2 = substitutionTable[vb2];
vb3 = substitutionTable[vb3];
vb4 = substitutionTable[vb4];
vb2 ^= vb1;
vb3 ^= vb2;
vb4 ^= vb3;
vb5 = substitutionTable[vb5];
vb6 = substitutionTable[vb6];
vb7 = substitutionTable[vb7];
vb8 = substitutionTable[vb8];
vb5 ^= vb4;
vb6 ^= vb5;
vb7 ^= vb6;
vb8 ^= vb7;
vb1 ^= vb8; //Circular-xor across section
vb1 ^= EPUK_SHORT(8) ^ OTPs[EPUK[startOTPSectionCount]][8];
vb2 ^= EPUK_SHORT(9) ^ OTPs[EPUK[startOTPSectionCount]][9];
vb3 ^= EPUK_SHORT(10) ^ OTPs[EPUK[startOTPSectionCount]][10];
vb4 ^= EPUK_SHORT(11) ^ OTPs[EPUK[startOTPSectionCount]][11];
vb5 ^= EPUK_SHORT(12) ^ OTPs[EPUK[startOTPSectionCount]][12];
vb6 ^= EPUK_SHORT(13) ^ OTPs[EPUK[startOTPSectionCount]][13];
vb7 ^= EPUK_SHORT(14) ^ OTPs[EPUK[startOTPSectionCount]][14];
vb8 ^= EPUK_SHORT(15) ^ OTPs[EPUK[startOTPSectionCount]][15];
// Section 3
vc1 = substitutionTable[vc1];
vc2 = substitutionTable[vc2];
vc3 = substitutionTable[vc3];
vc4 = substitutionTable[vc4];
vc2 ^= vc1;
vc3 ^= vc2;
vc4 ^= vc3;
vc5 = substitutionTable[vc5];
vc6 = substitutionTable[vc6];
vc7 = substitutionTable[vc7];
vc8 = substitutionTable[vc8];
vc5 ^= vc4;
vc6 ^= vc5;
vc7 ^= vc6;
vc8 ^= vc7;
vc1 ^= vc8; //Circular-xor across section
vc1 ^= EPUK_SHORT(16) ^ OTPs[EPUK[startOTPSectionCount]][16];
vc2 ^= EPUK_SHORT(17) ^ OTPs[EPUK[startOTPSectionCount]][17];
vc3 ^= EPUK_SHORT(18) ^ OTPs[EPUK[startOTPSectionCount]][18];
vc4 ^= EPUK_SHORT(19) ^ OTPs[EPUK[startOTPSectionCount]][19];
vc5 ^= EPUK_SHORT(20) ^ OTPs[EPUK[startOTPSectionCount]][20];
vc6 ^= EPUK_SHORT(21) ^ OTPs[EPUK[startOTPSectionCount]][21];
vc7 ^= EPUK_SHORT(22) ^ OTPs[EPUK[startOTPSectionCount]][22];
vc8 ^= EPUK_SHORT(23) ^ OTPs[EPUK[startOTPSectionCount]][23];
// Section 4
vd1 = substitutionTable[vd1];
vd2 = substitutionTable[vd2];
vd3 = substitutionTable[vd3];
vd4 = substitutionTable[vd4];
vd2 ^= vd1;
vd3 ^= vd2;
vd4 ^= vd3;
vd5 = substitutionTable[vd5];
vd6 = substitutionTable[vd6];
vd7 = substitutionTable[vd7];
vd8 = substitutionTable[vd8];
vd5 ^= vd4;
vd6 ^= vd5;
vd7 ^= vd6;
vd8 ^= vd7;
vd1 ^= vd8; //Circular-xor across section
vd1 ^= EPUK_SHORT(24) ^ OTPs[EPUK[startOTPSectionCount]][24];
vd2 ^= EPUK_SHORT(25) ^ OTPs[EPUK[startOTPSectionCount]][25];
vd3 ^= EPUK_SHORT(26) ^ OTPs[EPUK[startOTPSectionCount]][26];
vd4 ^= EPUK_SHORT(27) ^ OTPs[EPUK[startOTPSectionCount]][27];
vd5 ^= EPUK_SHORT(28) ^ OTPs[EPUK[startOTPSectionCount]][28];
vd6 ^= EPUK_SHORT(29) ^ OTPs[EPUK[startOTPSectionCount]][29];
vd7 ^= EPUK_SHORT(30) ^ OTPs[EPUK[startOTPSectionCount]][30];
vd8 ^= EPUK_SHORT(31) ^ OTPs[EPUK[startOTPSectionCount]][31];
++startOTPSectionCount;
// Section 5
ve1 = substitutionTable[ve1];
ve2 = substitutionTable[ve2];
ve3 = substitutionTable[ve3];
ve4 = substitutionTable[ve4];
ve2 ^= ve1;
ve3 ^= ve2;
ve4 ^= ve3;
ve5 = substitutionTable[ve5];
ve6 = substitutionTable[ve6];
ve7 = substitutionTable[ve7];
ve8 = substitutionTable[ve8];
ve5 ^= ve4;
ve6 ^= ve5;
ve7 ^= ve6;
ve8 ^= ve7;
ve1 ^= ve8; //Circular-xor across section
ve1 ^= EPUK_SHORT(32) ^ OTPs[EPUK[startOTPSectionCount]][0];
ve2 ^= EPUK_SHORT(33) ^ OTPs[EPUK[startOTPSectionCount]][1];
ve3 ^= EPUK_SHORT(34) ^ OTPs[EPUK[startOTPSectionCount]][2];
ve4 ^= EPUK_SHORT(35) ^ OTPs[EPUK[startOTPSectionCount]][3];
ve5 ^= EPUK_SHORT(36) ^ OTPs[EPUK[startOTPSectionCount]][4];
ve6 ^= EPUK_SHORT(37) ^ OTPs[EPUK[startOTPSectionCount]][5];
ve7 ^= EPUK_SHORT(38) ^ OTPs[EPUK[startOTPSectionCount]][6];
ve8 ^= EPUK_SHORT(39) ^ OTPs[EPUK[startOTPSectionCount]][7];
// Section 6
vf1 = substitutionTable[vf1];
vf2 = substitutionTable[vf2];
vf3 = substitutionTable[vf3];
vf4 = substitutionTable[vf4];
vf2 ^= vf1;
vf3 ^= vf2;
vf4 ^= vf3;
vf5 = substitutionTable[vf5];
vf6 = substitutionTable[vf6];
vf7 = substitutionTable[vf7];
vf8 = substitutionTable[vf8];
vf5 ^= vf4;
vf6 ^= vf5;
vf7 ^= vf6;
vf8 ^= vf7;
vf1 ^= vf8; //Circular-xor across section
vf1 ^= EPUK_SHORT(40) ^ OTPs[EPUK[startOTPSectionCount]][8];
vf2 ^= EPUK_SHORT(41) ^ OTPs[EPUK[startOTPSectionCount]][9];
vf3 ^= EPUK_SHORT(42) ^ OTPs[EPUK[startOTPSectionCount]][10];
vf4 ^= EPUK_SHORT(43) ^ OTPs[EPUK[startOTPSectionCount]][11];
vf5 ^= EPUK_SHORT(44) ^ OTPs[EPUK[startOTPSectionCount]][12];
vf6 ^= EPUK_SHORT(45) ^ OTPs[EPUK[startOTPSectionCount]][13];
vf7 ^= EPUK_SHORT(46) ^ OTPs[EPUK[startOTPSectionCount]][14];
vf8 ^= EPUK_SHORT(47) ^ OTPs[EPUK[startOTPSectionCount]][15];
// Section 7
vg1 = substitutionTable[vg1];
vg2 = substitutionTable[vg2];
vg3 = substitutionTable[vg3];
vg4 = substitutionTable[vg4];
vg2 ^= vg1;
vg3 ^= vg2;
vg4 ^= vg3;
vg5 = substitutionTable[vg5];
vg6 = substitutionTable[vg6];
vg7 = substitutionTable[vg7];
vg8 = substitutionTable[vg8];
vg5 ^= vg4;
vg6 ^= vg5;
vg7 ^= vg6;
vg8 ^= vg7;
vg1 ^= vg8; //Circular-xor across section
vg1 ^= EPUK_SHORT(48) ^ OTPs[EPUK[startOTPSectionCount]][16];
vg2 ^= EPUK_SHORT(49) ^ OTPs[EPUK[startOTPSectionCount]][17];
vg3 ^= EPUK_SHORT(50) ^ OTPs[EPUK[startOTPSectionCount]][18];
vg4 ^= EPUK_SHORT(51) ^ OTPs[EPUK[startOTPSectionCount]][19];
vg5 ^= EPUK_SHORT(52) ^ OTPs[EPUK[startOTPSectionCount]][20];
vg6 ^= EPUK_SHORT(53) ^ OTPs[EPUK[startOTPSectionCount]][21];
vg7 ^= EPUK_SHORT(54) ^ OTPs[EPUK[startOTPSectionCount]][22];
vg8 ^= EPUK_SHORT(55) ^ OTPs[EPUK[startOTPSectionCount]][23];
// Section 8
vh1 = substitutionTable[vh1];
vh2 = substitutionTable[vh2];
vh3 = substitutionTable[vh3];
vh4 = substitutionTable[vh4];
vh2 ^= vh1;
vh3 ^= vh2;
vh4 ^= vh3;
vh5 = substitutionTable[vh5];
vh6 = substitutionTable[vh6];
////cout << "ENCRYPTION: starting vh7 " << hex << vh7 << endl;
vh7 = substitutionTable[vh7];
//cout << "ENCRYPTION: substituted vh7 " << hex << vh7 << endl;
vh8 = substitutionTable[vh8];
vh5 ^= vh4;
vh6 ^= vh5;
vh7 ^= vh6;
//cout << "ENCRYPTION: xored v7 with " << hex << vh6 << " to get " << vh7 << endl;
vh8 ^= vh7;
vh1 ^= vh8; //Circular-xor across section
vh1 ^= EPUK_SHORT(56) ^ OTPs[EPUK[startOTPSectionCount]][24];
vh2 ^= EPUK_SHORT(57) ^ OTPs[EPUK[startOTPSectionCount]][25];
vh3 ^= EPUK_SHORT(58) ^ OTPs[EPUK[startOTPSectionCount]][26];
vh4 ^= EPUK_SHORT(59) ^ OTPs[EPUK[startOTPSectionCount]][27];
vh5 ^= EPUK_SHORT(60) ^ OTPs[EPUK[startOTPSectionCount]][28];
//cout << "2ENCRYPTION: PUK/OTP xor vh5 with " << hex << EPUK_SHORT(60) << " and " << OTPs[EPUK[startOTPSectionCount]][28] << "to get " << vh5 << endl;
vh6 ^= EPUK_SHORT(61) ^ OTPs[EPUK[startOTPSectionCount]][29];
//cout << "2ENCRYPTION: PUK/OTP xor vh6 with " << hex << EPUK_SHORT(61) << " and " << OTPs[EPUK[startOTPSectionCount]][29] << "to get " << vh6 << endl;
vh7 ^= EPUK_SHORT(62) ^ OTPs[EPUK[startOTPSectionCount]][30];
//cout << "2ENCRYPTION: PUK/OTP xor vh7 with " << hex << EPUK_SHORT(62) << " and " << OTPs[EPUK[startOTPSectionCount]][30] << "to get " << vh7 << endl;
vh8 ^= EPUK_SHORT(63) ^ OTPs[EPUK[startOTPSectionCount]][31];
//cout << "2ENCRYPTION: PUK/OTP xor vh8 with " << hex << EPUK_SHORT(63) << " and " << OTPs[EPUK[startOTPSectionCount]][31] << "to get " << vh8 << endl;
++startOTPSectionCount;
if (false && round == 2 && numRounds == 2) {
// Reflect rearrangement in memory
*SA(0) = va1;
*SA(1) = vb1;
*SA(2) = vc1;
*SA(3) = vd1;
*SA(4) = ve1;
*SA(5) = vf1;
*SA(6) = vg1;
*SA(7) = vh1;
*SB(0) = va2;
*SB(1) = vb2;
*SB(2) = vc2;
*SB(3) = vd2;
*SB(4) = ve2;
*SB(5) = vf2;
*SB(6) = vg2;
*SB(7) = vh2;
*SC(0) = va3;
*SC(1) = vb3;
*SC(2) = vc3;
*SC(3) = vd3;
*SC(4) = ve3;
*SC(5) = vf3;
*SC(6) = vg3;
*SC(7) = vh3;
*SD(0) = va4;
*SD(1) = vb4;
*SD(2) = vc4;
*SD(3) = vd4;
*SD(4) = ve4;
*SD(5) = vf4;
*SD(6) = vg4;
*SD(7) = vh4;
*SE(0) = va5;
*SE(1) = vb5;
*SE(2) = vc5;
*SE(3) = vd5;
*SE(4) = ve5;
*SE(5) = vf5;
*SE(6) = vg5;
*SE(7) = vh5;
*SF(0) = va6;
*SF(1) = vb6;
*SF(2) = vc6;
*SF(3) = vd6;
*SF(4) = ve6;
*SF(5) = vf6;
*SF(6) = vg6;
*SF(7) = vh6;
*SG(0) = va7;
*SG(1) = vb7;
*SG(2) = vc7;
*SG(3) = vd7;
*SG(4) = ve7;
*SG(5) = vf7;
*SG(6) = vg7;
*SG(7) = vh7;
*SH(0) = va8;
*SH(1) = vb8;
*SH(2) = vc8;
*SH(3) = vd8;
*SH(4) = ve8;
*SH(5) = vf8;
*SH(6) = vg8;
*SH(7) = vh8;
return;
} else if (round == 2 && numRounds == 4) {
// Reflect rearrangement in memory
#define SWAP_SHORTS(a, b) \
do { \
uint16_t temp = a; \
a = b; \
b = temp; \
} while(0)
va1 = va1;
SWAP_SHORTS(va2, vb1);
SWAP_SHORTS(va3, vc1);
SWAP_SHORTS(va4, vd1);
SWAP_SHORTS(va5, ve1);
SWAP_SHORTS(va6, vf1);
SWAP_SHORTS(va7, vg1);
SWAP_SHORTS(va8, vh1);
vb2 = vb2;
SWAP_SHORTS(vb3, vc2);
SWAP_SHORTS(vb4, vd2);
SWAP_SHORTS(vb5, ve2);
SWAP_SHORTS(vb6, vf2);
SWAP_SHORTS(vb7, vg2);
SWAP_SHORTS(vb8, vh2);
vc3 = vc3;
SWAP_SHORTS(vc4, vd3);
SWAP_SHORTS(vc5, ve3);
SWAP_SHORTS(vc6, vf3);
SWAP_SHORTS(vc7, vg3);
SWAP_SHORTS(vc8, vh3);
vd4 = vd4;
SWAP_SHORTS(vd5, ve4);
SWAP_SHORTS(vd6, vf4);
SWAP_SHORTS(vd7, vg4);
SWAP_SHORTS(vd8, vh4);
ve5 = ve5;
SWAP_SHORTS(ve6, vf5);
SWAP_SHORTS(ve7, vg5);
SWAP_SHORTS(ve8, vh5);
vf6 = vf6;
SWAP_SHORTS(vf7, vg6);
SWAP_SHORTS(vf8, vh6);
vg7 = vg7;
SWAP_SHORTS(vg8, vh7);
vh8 = vh8;
}
}
*SA(0) = va1;
*SA(1) = va2;
*SA(2) = va3;
*SA(3) = va4;
*SA(4) = va5;
*SA(5) = va6;
*SA(6) = va7;
*SA(7) = va8;
*SB(0) = vb1;
*SB(1) = vb2;
*SB(2) = vb3;
*SB(3) = vb4;
*SB(4) = vb5;
*SB(5) = vb6;
*SB(6) = vb7;
*SB(7) = vb8;
*SC(0) = vc1;
*SC(1) = vc2;
*SC(2) = vc3;
*SC(3) = vc4;
*SC(4) = vc5;
*SC(5) = vc6;
*SC(6) = vc7;
*SC(7) = vc8;
*SD(0) = vd1;
*SD(1) = vd2;
*SD(2) = vd3;
*SD(3) = vd4;
*SD(4) = vd5;
*SD(5) = vd6;
*SD(6) = vd7;
*SD(7) = vd8;
*SE(0) = ve1;
*SE(1) = ve2;
*SE(2) = ve3;
*SE(3) = ve4;
*SE(4) = ve5;
*SE(5) = ve6;
*SE(6) = ve7;
*SE(7) = ve8;
*SF(0) = vf1;
*SF(1) = vf2;
*SF(2) = vf3;
*SF(3) = vf4;
*SF(4) = vf5;
*SF(5) = vf6;
*SF(6) = vf7;
*SF(7) = vf8;
*SG(0) = vg1;
*SG(1) = vg2;
*SG(2) = vg3;
*SG(3) = vg4;
*SG(4) = vg5;
*SG(5) = vg6;
*SG(6) = vg7;
*SG(7) = vg8;
*SH(0) = vh1;
*SH(1) = vh2;
*SH(2) = vh3;
*SH(3) = vh4;
*SH(4) = vh5;
*SH(5) = vh6;
*SH(6) = vh7;
*SH(7) = vh8;
//cout << "Encrypted " << endl;
//printVector(input, 56, 65);
}
}
void reverseReplaceFoldCycles(vector<uint16_t>& input, uint32_t start, uint32_t end, int numRounds, vector<uint16_t>& EPUK, uint32_t& startingOTPSection) {
DASSERT((end - start) == (k1 / (sizeof(uint16_t) * 8))); // input must be 1024 bits long
DASSERT(numRounds == 2 || numRounds == 4);
//cout << "Decryption input " << endl;
//printVector(input, 56, 65);
uint32_t startOTPSectionCount = 0;
int round = 1;
{
startOTPSectionCount = startingOTPSection - (2*round);
// Process 1st section of 128 bits
uint16_t* bptr1 = input.data()+start;
uint16_t va1 = *SA(0);
uint16_t va2 = *SA(1);
uint16_t va3 = *SA(2);
uint16_t va4 = *SA(3);
//cout << hex << "Starting va1 : " << va1;
uint64_t* ukptr1 = reinterpret_cast<uint64_t *>(EPUK.data()+start);
#define EPUK_SHORT(a) *(reinterpret_cast<uint16_t *>(ukptr1)+a)
va1 ^= EPUK_SHORT(0) ^ OTPs[EPUK[startOTPSectionCount]][0];
va2 ^= EPUK_SHORT(1) ^ OTPs[EPUK[startOTPSectionCount]][1];
va3 ^= EPUK_SHORT(2) ^ OTPs[EPUK[startOTPSectionCount]][2];
va4 ^= EPUK_SHORT(3) ^ OTPs[EPUK[startOTPSectionCount]][3];
//cout << hex << "Xor va1 with EPUK " << EPUK_SHORT(0) << " and OTP " << OTPs[EPUK[startOTPSectionCount]][0] << " to get new va1 : " << va1 << endl;
uint16_t va5 = *SA(4);
uint16_t va6 = *SA(5);
uint16_t va7 = *SA(6);
uint16_t va8 = *SA(7);
va5 ^= EPUK_SHORT(4) ^ OTPs[EPUK[startOTPSectionCount]][4];
va6 ^= EPUK_SHORT(5) ^ OTPs[EPUK[startOTPSectionCount]][5];
va7 ^= EPUK_SHORT(6) ^ OTPs[EPUK[startOTPSectionCount]][6];
va8 ^= EPUK_SHORT(7) ^ OTPs[EPUK[startOTPSectionCount]][7];
va1 ^= va8; //Circular-xor across section
va8 ^= va7;
va7 ^= va6;
va6 ^= va5;
va5 ^= va4;
//cout << hex << "Circular xor va1 with " << va8 << " to get new va1 : " << va1 << va1;
va4 ^= va3;
va3 ^= va2;
va2 ^= va1;
va1 = substitutionTable[va1];
va2 = substitutionTable[va2];
va3 = substitutionTable[va3];
va4 = substitutionTable[va4];
//cout << hex << "Substitution to get new va1 : " << va1 << va1;
va5 = substitutionTable[va5];
va6 = substitutionTable[va6];
va7 = substitutionTable[va7];
va8 = substitutionTable[va8];
// Process 2nd section of 128 bits
uint16_t vb1 = *SB(0);
uint16_t vb2 = *SB(1);
uint16_t vb3 = *SB(2);
uint16_t vb4 = *SB(3);
vb1 ^= EPUK_SHORT(8) ^ OTPs[EPUK[startOTPSectionCount]][8];
vb2 ^= EPUK_SHORT(9) ^ OTPs[EPUK[startOTPSectionCount]][9];
vb3 ^= EPUK_SHORT(10) ^ OTPs[EPUK[startOTPSectionCount]][10];
vb4 ^= EPUK_SHORT(11) ^ OTPs[EPUK[startOTPSectionCount]][11];
uint16_t vb5 = *SB(4);
uint16_t vb6 = *SB(5);
uint16_t vb7 = *SB(6);
uint16_t vb8 = *SB(7);
vb5 ^= EPUK_SHORT(12) ^ OTPs[EPUK[startOTPSectionCount]][12];
vb6 ^= EPUK_SHORT(13) ^ OTPs[EPUK[startOTPSectionCount]][13];
vb7 ^= EPUK_SHORT(14) ^ OTPs[EPUK[startOTPSectionCount]][14];
vb8 ^= EPUK_SHORT(15) ^ OTPs[EPUK[startOTPSectionCount]][15];
vb1 ^= vb8; //Circular-xor across section
vb8 ^= vb7;
vb7 ^= vb6;
vb6 ^= vb5;
vb5 ^= vb4;
vb4 ^= vb3;
vb3 ^= vb2;
vb2 ^= vb1;
vb1 = substitutionTable[vb1];
vb2 = substitutionTable[vb2];
vb3 = substitutionTable[vb3];
vb4 = substitutionTable[vb4];
vb5 = substitutionTable[vb5];
vb6 = substitutionTable[vb6];
vb7 = substitutionTable[vb7];
vb8 = substitutionTable[vb8];
// Process 3rd section of 128 bits
uint16_t vc1 = *SC(0);
uint16_t vc2 = *SC(1);
uint16_t vc3 = *SC(2);
uint16_t vc4 = *SC(3);
vc1 ^= EPUK_SHORT(16) ^ OTPs[EPUK[startOTPSectionCount]][16];
vc2 ^= EPUK_SHORT(17) ^ OTPs[EPUK[startOTPSectionCount]][17];
vc3 ^= EPUK_SHORT(18) ^ OTPs[EPUK[startOTPSectionCount]][18];
vc4 ^= EPUK_SHORT(19) ^ OTPs[EPUK[startOTPSectionCount]][19];
uint16_t vc5 = *SC(4);
uint16_t vc6 = *SC(5);
uint16_t vc7 = *SC(6);
uint16_t vc8 = *SC(7);
vc5 ^= EPUK_SHORT(20) ^ OTPs[EPUK[startOTPSectionCount]][20];
vc6 ^= EPUK_SHORT(21) ^ OTPs[EPUK[startOTPSectionCount]][21];
vc7 ^= EPUK_SHORT(22) ^ OTPs[EPUK[startOTPSectionCount]][22];
vc8 ^= EPUK_SHORT(23) ^ OTPs[EPUK[startOTPSectionCount]][23];
vc1 ^= vc8; //Circular-xor across section
vc8 ^= vc7;
vc7 ^= vc6;
vc6 ^= vc5;
vc5 ^= vc4;
vc4 ^= vc3;
vc3 ^= vc2;
vc2 ^= vc1;
vc1 = substitutionTable[vc1];
vc2 = substitutionTable[vc2];
vc3 = substitutionTable[vc3];
vc4 = substitutionTable[vc4];
vc5 = substitutionTable[vc5];
vc6 = substitutionTable[vc6];
vc7 = substitutionTable[vc7];
vc8 = substitutionTable[vc8];
// Process 4th section of 128 bits
uint16_t vd1 = *SD(0);
uint16_t vd2 = *SD(1);
uint16_t vd3 = *SD(2);
uint16_t vd4 = *SD(3);
vd1 ^= EPUK_SHORT(24) ^ OTPs[EPUK[startOTPSectionCount]][24];
vd2 ^= EPUK_SHORT(25) ^ OTPs[EPUK[startOTPSectionCount]][25];
vd3 ^= EPUK_SHORT(26) ^ OTPs[EPUK[startOTPSectionCount]][26];
vd4 ^= EPUK_SHORT(27) ^ OTPs[EPUK[startOTPSectionCount]][27];