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mutator.cpp
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mutator.cpp
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#include <cstdint>
#include <array>
#include <fuzzing/datasource/datasource.hpp>
#include <fuzzing/datasource/id.hpp>
#include <cryptofuzz/operations.h>
#include <cryptofuzz/repository.h>
#include <cryptofuzz/options.h>
#include <cryptofuzz/util.h>
#include <boost/multiprecision/cpp_int.hpp>
#include <boost/lexical_cast.hpp>
#include <boost/random.hpp>
#include <algorithm>
#include <random>
#include "config.h"
#include "repository_tbl.h"
#include "numbers.h"
#include "mutatorpool.h"
#include "_z3.h"
#include "expmod.h"
#include "third_party/json/json.hpp"
extern "C" size_t LLVMFuzzerMutate(uint8_t* data, size_t size, size_t maxSize);
uint32_t PRNG(void)
{
static uint32_t nSeed = 5323;
nSeed = (8253729 * nSeed + 2396403);
return nSeed % 32767;
}
auto rng = std::default_random_engine {};
boost::multiprecision::cpp_int cpp_int_reciprocal(
boost::multiprecision::cpp_int x,
boost::multiprecision::cpp_int m) {
if ( x == 0 || x >= m ) {
return x;
}
boost::multiprecision::cpp_int y = x;
x = m;
boost::multiprecision::cpp_int a = 0;
boost::multiprecision::cpp_int b = 1;
while ( y != 0 ) {
boost::multiprecision::cpp_int tmp;
tmp = a;
a = b;
b = tmp - x / y * b;
tmp = x;
x = y;
y = tmp % y;
}
if ( x == 1 ) {
return a % m;
}
return 0;
}
static size_t cpp_int_num_bits(const boost::multiprecision::cpp_int& m) {
boost::multiprecision::cpp_int m_copy = m;
size_t num_bits = 0;
while ( m_copy ) {
m_copy >>= 1;
num_bits++;
}
num_bits = (num_bits / 8 + 1) * 8;
return num_bits;
}
static std::string to_mont(const std::string& y_, const std::string& mod_) {
if ( y_ == "" || (y_.size() && (y_[0] == '0' || y_[0] == '-')) ) {
return y_;
}
if ( mod_ == "" || (mod_.size() && (mod_[0] == '0' || mod_[0] == '-')) ) {
return y_;
}
const boost::multiprecision::cpp_int mod(mod_);
const boost::multiprecision::cpp_int y(y_);
const boost::multiprecision::cpp_int res = (y << cpp_int_num_bits(mod)) % mod;
return res.str();
}
static std::string from_mont(const std::string& y_, const std::string& mod_) {
if ( y_ == "" || (y_.size() && (y_[0] == '0' || y_[0] == '-')) ) {
return y_;
}
if ( mod_ == "" || (mod_.size() && (mod_[0] == '0' || mod_[0] == '-')) ) {
return y_;
}
const boost::multiprecision::cpp_int mod(mod_);
const auto num_bits = cpp_int_num_bits(mod);
boost::multiprecision::cpp_int reducer = 1;
reducer <<= num_bits;
const auto multiplier = cpp_int_reciprocal(reducer % mod, mod);
const boost::multiprecision::cpp_int y(y_);
const boost::multiprecision::cpp_int res = (y * multiplier) % mod;
return res.str();
}
static std::string mutateBinary(const std::string s) {
if ( s.size() && s[0] == '0' ) {
return s;
}
if ( s.size() && s[0] == '-' ) {
return s;
}
const auto i = boost::multiprecision::cpp_int(s);
std::vector<uint8_t> bytes;
export_bits(i, std::back_inserter(bytes), 8);
auto newsize = LLVMFuzzerMutate(bytes.data(), bytes.size(), bytes.size());
/* Memory sanitizer doesn't like that LLVMFuzzerMutate is called.
* If MSAN is enabled, manually unpoison the region returned by
* LLVMFuzzerMutate.
*/
cryptofuzz::util::MemorySanitizerUnpoison(bytes.data(), newsize);
bytes.resize(newsize);
if ( newsize ) {
newsize = PRNG() % (newsize+1);
if ( newsize ) {
bytes.resize(newsize);
}
}
boost::multiprecision::cpp_int j;
import_bits(j, bytes.begin(), bytes.end());
return j.str();
}
std::optional<std::string> get_op_mod(const uint64_t& operation) {
switch ( operation ) {
case CF_OPERATION("BignumCalc_Mod_2Exp64"):
return "18446744073709551616";
case CF_OPERATION("BignumCalc_Mod_2Exp128"):
return "340282366920938463463374607431768211456";
case CF_OPERATION("BignumCalc_Mod_2Exp256"):
return "115792089237316195423570985008687907853269984665640564039457584007913129639936";
case CF_OPERATION("BignumCalc_Mod_2Exp512"):
return "13407807929942597099574024998205846127479365820592393377723561443721764030073546976801874298166903427690031858186486050853753882811946569946433649006084096";
case CF_OPERATION("BignumCalc_Mod_BLS12_381_P"):
return "4002409555221667393417789825735904156556882819939007885332058136124031650490837864442687629129015664037894272559787";
case CF_OPERATION("BignumCalc_Mod_BLS12_381_R"):
return "52435875175126190479447740508185965837690552500527637822603658699938581184513";
case CF_OPERATION("BignumCalc_Mod_BN128_P"):
return "21888242871839275222246405745257275088696311157297823662689037894645226208583";
case CF_OPERATION("BignumCalc_Mod_BN128_R"):
return "21888242871839275222246405745257275088548364400416034343698204186575808495617";
case CF_OPERATION("BignumCalc_Mod_Vesta_P"):
return "28948022309329048855892746252171976963363056481941647379679742748393362948097";
case CF_OPERATION("BignumCalc_Mod_Vesta_R"):
return "28948022309329048855892746252171976963363056481941560715954676764349967630337";
case CF_OPERATION("BignumCalc_Mod_ED25519"):
return "57896044618658097711785492504343953926634992332820282019728792003956564819949";
case CF_OPERATION("BignumCalc_Mod_Edwards_P"):
return "6210044120409721004947206240885978274523751269793792001";
case CF_OPERATION("BignumCalc_Mod_Goldilocks"):
return "18446744069414584321";
case CF_OPERATION("BignumCalc_Mod_Edwards_R"):
return "1552511030102430251236801561344621993261920897571225601";
case CF_OPERATION("BignumCalc_Mod_SECP256K1"):
return "115792089237316195423570985008687907852837564279074904382605163141518161494337";
case CF_OPERATION("BignumCalc_Mod_SECP256K1_P"):
return "115792089237316195423570985008687907853269984665640564039457584007908834671663";
case CF_OPERATION("BignumCalc_Mod_BLS12_377_P"):
return "258664426012969094010652733694893533536393512754914660539884262666720468348340822774968888139573360124440321458177";
case CF_OPERATION("BignumCalc_Mod_BLS12_377_R"):
return "8444461749428370424248824938781546531375899335154063827935233455917409239041";
/* TODO the rest */
default:
return std::nullopt;
}
}
static uint64_t PRNG64(void) {
return (((uint64_t)PRNG()) << 32) + PRNG();
}
static std::vector<size_t> SplitLength(size_t left, const size_t numParts) {
std::vector<size_t> lengths;
for (size_t i = 0; i < numParts; i++) {
const auto cur = PRNG() % (left+1);
lengths.push_back(cur);
left -= cur;
}
std::vector<size_t> lengths_randomized;
for (size_t i = 0; i < numParts; i++) {
const auto cur = lengths.begin() + PRNG() % (lengths.size());
lengths_randomized.push_back(*cur);
lengths.erase(cur);
}
return lengths_randomized;
}
bool getBool(void) {
return PRNG() % 2 == 0;
}
static size_t getDefaultSize(void) {
static const std::array defaultSizes = {0, 1, 2, 4, 8, 12, 16, 24, 32, 64};
return defaultSizes[PRNG() % defaultSizes.size()];
}
static std::string getBuffer(size_t size, const bool alternativeSize = false) {
static const std::array<std::string, 256> hex = {
"00", "01", "02", "03", "04", "05", "06", "07", "08", "09", "0a", "0b", "0c", "0d", "0e", "0f",
"10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "1a", "1b", "1c", "1d", "1e", "1f",
"20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "2a", "2b", "2c", "2d", "2e", "2f",
"30", "31", "32", "33", "34", "35", "36", "37", "38", "39", "3a", "3b", "3c", "3d", "3e", "3f",
"40", "41", "42", "43", "44", "45", "46", "47", "48", "49", "4a", "4b", "4c", "4d", "4e", "4f",
"50", "51", "52", "53", "54", "55", "56", "57", "58", "59", "5a", "5b", "5c", "5d", "5e", "5f",
"60", "61", "62", "63", "64", "65", "66", "67", "68", "69", "6a", "6b", "6c", "6d", "6e", "6f",
"70", "71", "72", "73", "74", "75", "76", "77", "78", "79", "7a", "7b", "7c", "7d", "7e", "7f",
"80", "81", "82", "83", "84", "85", "86", "87", "88", "89", "8a", "8b", "8c", "8d", "8e", "8f",
"90", "91", "92", "93", "94", "95", "96", "97", "98", "99", "9a", "9b", "9c", "9d", "9e", "9f",
"a0", "a1", "a2", "a3", "a4", "a5", "a6", "a7", "a8", "a9", "aa", "ab", "ac", "ad", "ae", "af",
"b0", "b1", "b2", "b3", "b4", "b5", "b6", "b7", "b8", "b9", "ba", "bb", "bc", "bd", "be", "bf",
"c0", "c1", "c2", "c3", "c4", "c5", "c6", "c7", "c8", "c9", "ca", "cb", "cc", "cd", "ce", "cf",
"d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", "d8", "d9", "da", "db", "dc", "dd", "de", "df",
"e0", "e1", "e2", "e3", "e4", "e5", "e6", "e7", "e8", "e9", "ea", "eb", "ec", "ed", "ee", "ef",
"f0", "f1", "f2", "f3", "f4", "f5", "f6", "f7", "f8", "f9", "fa", "fb", "fc", "fd", "fe", "ff"};
if ( alternativeSize == true ) {
if ( getBool() ) {
const auto newSize = getDefaultSize();
if ( newSize < size ) {
size = newSize;
}
}
}
std::string ret;
for (size_t i = 0; i < size; i++) {
ret += hex[PRNG() % 256];
}
return ret;
}
static std::vector<uint8_t> getBufferBin(const size_t size) {
std::vector<uint8_t> ret(size);
for (size_t i = 0; i < size; i++) {
ret[i] = PRNG();
}
return ret;
}
std::string getBignum(bool mustBePositive = false) {
std::string ret;
if ( (PRNG() % 10) == 0 ) {
constexpr long sizeMax = cryptofuzz::config::kMaxBignumSize;
constexpr long sizeTop = sizeMax * 0.5;
constexpr long sizeBottom = sizeMax - sizeTop;
static_assert(sizeBottom > 0);
static_assert(sizeBottom + sizeTop <= sizeMax);
const size_t size = (PRNG() % sizeTop) + sizeBottom;
for (size_t i = 0; i < size; i++) {
char c = '0' + (PRNG() % 10);
if ( i == 0 && c == '0' ) {
/* Cannot have leading zeroes */
c = '1';
}
ret += c;
}
} else {
if ( getBool() ) {
ret = Pool_Bignum.Get();
} else {
ret = cryptofuzz::numbers.at(PRNG() % cryptofuzz::numbers.size());
}
}
const bool isNegative = !ret.empty() && ret[0] == '-';
if ( cryptofuzz::config::kNegativeIntegers == false ) {
mustBePositive = true;
}
if ( isNegative && mustBePositive ) {
ret = std::string(ret.data() + 1, ret.size() - 1);
}
if ( !mustBePositive && !isNegative && getBool() ) {
ret = "-" + ret;
}
return ret;
}
std::string getPrime(void) {
return Pool_Bignum_Primes.Get();
}
uint64_t hint_ecc_mont(const uint64_t& curveType) {
const auto order = cryptofuzz::repository::ECC_CurveToOrder(curveType);
if ( order != std::nullopt ) {
const auto v = from_mont(mutateBinary(getBignum()), *order);
Pool_Bignum.Set(v);
}
return curveType;
}
#if 0
std::string to_mont(const std::string& y_) {
static const boost::multiprecision::cpp_int mod("4002409555221667393417789825735904156556882819939007885332058136124031650490837864442687629129015664037894272559787");
const boost::multiprecision::cpp_int y(y_);
const boost::multiprecision::cpp_int res = (y << 384) % mod;
return res.str();
}
std::string from_mont(const std::string& y_) {
static const boost::multiprecision::cpp_int multiplier("3231460744492646417066832100176244795738767926513225105051837195607029917124509527734802654356338138714468589979680");
static const boost::multiprecision::cpp_int mod("4002409555221667393417789825735904156556882819939007885332058136124031650490837864442687629129015664037894272559787");
const boost::multiprecision::cpp_int y(y_);
const boost::multiprecision::cpp_int res = (y * multiplier) % mod;
return res.str();
}
#endif
extern cryptofuzz::Options* cryptofuzz_options;
static uint64_t getRandomCipher(void) {
if ( !cryptofuzz_options->ciphers.Empty() ) {
return cryptofuzz_options->ciphers.At(PRNG());
} else {
return CipherLUT[ PRNG() % (sizeof(CipherLUT) / sizeof(CipherLUT[0])) ].id;
}
}
static uint64_t getRandomDigest(void) {
if ( !cryptofuzz_options->digests.Empty() ) {
return cryptofuzz_options->digests.At(PRNG());
} else {
return DigestLUT[ PRNG() % (sizeof(DigestLUT) / sizeof(DigestLUT[0])) ].id;
}
}
static uint64_t getRandomCurve(void) {
if ( !cryptofuzz_options->curves.Empty() ) {
return cryptofuzz_options->curves.At(PRNG());
} else {
return ECC_CurveLUT[ PRNG() % (sizeof(ECC_CurveLUT) / sizeof(ECC_CurveLUT[0])) ].id;
}
}
static uint64_t getRandomCalcOp(void) {
if ( !cryptofuzz_options->calcOps.Empty() ) {
return cryptofuzz_options->calcOps.At(PRNG());
} else {
return CalcOpLUT[ PRNG() % (sizeof(CalcOpLUT) / sizeof(CalcOpLUT[0])) ].id;
}
}
static std::string get_BLS_PyECC_DST(void) {
return "424c535f5349475f424c53313233383147325f584d443a5348412d3235365f535357555f524f5f504f505f";
}
static std::string get_BLS_BasicScheme_DST(void) {
return "424c535f5349475f424c53313233383147325f584d443a5348412d3235365f535357555f524f5f4e554c5f";
}
static std::string get_BLS_predefined_DST(void) {
return getBool() ? get_BLS_PyECC_DST() : get_BLS_BasicScheme_DST();
}
static void generateECCPoint(void) {
if ( (PRNG() % 100) != 0 ) {
return;
}
const auto curveID = getRandomCurve();
const auto a = cryptofuzz::repository::ECC_CurveToA(curveID);
if ( a == std::nullopt ) {
return;
}
const auto b = cryptofuzz::repository::ECC_CurveToB(curveID);
if ( b == std::nullopt ) {
return;
}
const auto p = cryptofuzz::repository::ECC_CurveToPrime(curveID);
if ( p == std::nullopt ) {
return;
}
const auto o = cryptofuzz::repository::ECC_CurveToPrime(curveID);
if ( o == std::nullopt ) {
return;
}
const auto x = getBignum(true);
const auto y = cryptofuzz::util::Find_ECC_Y(x, *a, *b, *p, *o, getBool());
if ( curveID == CF_ECC_CURVE("BLS12_381") ||
curveID == CF_ECC_CURVE("alt_bn128") ) {
Pool_CurveBLSG1.Set({ curveID, x, y });
} else {
Pool_CurveECC_Point.Set({ curveID, x, y });
}
}
extern "C" size_t LLVMFuzzerCustomMutator(uint8_t* data, size_t size, size_t maxSize, unsigned int seed) {
(void)seed;
std::vector<uint8_t> modifier;
bool reuseModifier;
if ( maxSize < 64 || getBool() ) {
goto end;
}
reuseModifier = getBool();
if ( reuseModifier == true ) {
cryptofuzz::util::MemorySanitizerUnpoison(data, size);
/* Try to extract modifier from input */
try {
fuzzing::datasource::Datasource ds(data, size);
/* ignore result */ ds.Get<uint64_t>();
/* ignore result */ ds.GetData(0, 1);
modifier = ds.GetData(0);
} catch ( fuzzing::datasource::Datasource::OutOfData& ) { }
}
{
uint64_t operation;
if ( !cryptofuzz_options->operations.Empty() ) {
operation = cryptofuzz_options->operations.At(PRNG());
} else {
operation = OperationLUT[ PRNG() % (sizeof(OperationLUT) / sizeof(OperationLUT[0])) ].id;
}
fuzzing::datasource::Datasource dsOut2(nullptr, 0);
nlohmann::json parameters;
#define GET_OR_BIGNUM(x) getBool() ? (x) : getBignum();
switch ( operation ) {
case CF_OPERATION("Digest"):
{
parameters["modifier"] = "";
parameters["cleartext"] = getBuffer(PRNG64() % maxSize);
parameters["digestType"] = getRandomDigest();
cryptofuzz::operation::Digest op(parameters);
op.Serialize(dsOut2);
}
break;
case CF_OPERATION("HMAC"):
{
size_t numParts = 0;
numParts++; /* modifier */
numParts++; /* cleartext */
numParts++; /* iv */
numParts++; /* key */
const auto lengths = SplitLength(maxSize - 64, numParts);
parameters["modifier"] = getBuffer(lengths[0]);
parameters["cleartext"] = getBuffer(lengths[1]);
parameters["cipher"]["iv"] = getBuffer(lengths[2], true);
parameters["cipher"]["key"] = getBuffer(lengths[3], true);
parameters["cipher"]["cipherType"] = getRandomCipher();
parameters["digestType"] = getRandomDigest();
cryptofuzz::operation::HMAC op(parameters);
op.Serialize(dsOut2);
}
break;
case CF_OPERATION("UMAC"):
{
parameters["modifier"] = "";
parameters["cleartext"] = getBuffer(PRNG64() % maxSize);
parameters["key"] = getBuffer(16);
parameters["iv"] = getBuffer(PRNG() % 17);
parameters["type"] = PRNG() % 4;
parameters["outSize"] = PRNG() % 1024;
cryptofuzz::operation::UMAC op(parameters);
op.Serialize(dsOut2);
}
break;
case CF_OPERATION("CMAC"):
{
size_t numParts = 0;
numParts++; /* modifier */
numParts++; /* cleartext */
numParts++; /* iv */
numParts++; /* key */
const auto lengths = SplitLength(maxSize - 64, numParts);
parameters["modifier"] = getBuffer(lengths[0]);
parameters["cleartext"] = getBuffer(lengths[1]);
parameters["cipher"]["iv"] = getBuffer(lengths[2], true);
parameters["cipher"]["key"] = getBuffer(lengths[3], true);
parameters["cipher"]["cipherType"] = getRandomCipher();
cryptofuzz::operation::CMAC op(parameters);
op.Serialize(dsOut2);
}
break;
case CF_OPERATION("SymmetricEncrypt"):
{
const bool aad_enabled = PRNG() % 2;
const bool tagSize_enabled = PRNG() % 2;
size_t numParts = 0;
numParts++; /* modifier */
numParts++; /* cleartext */
numParts++; /* iv */
numParts++; /* key */
if ( aad_enabled ) {
numParts++; /* aad */
}
auto lengths = SplitLength(maxSize - 64, numParts);
parameters["modifier"] = getBuffer(lengths[0]);
if ( getBool() ) {
if ( 16 < lengths[1] ) {
lengths[1] = 16;
}
}
parameters["cleartext"] = getBuffer(lengths[1]);
parameters["cipher"]["iv"] = getBuffer(lengths[2], true);
parameters["cipher"]["key"] = getBuffer(lengths[3], true);
if ( aad_enabled ) {
parameters["aad_enabled"] = true;
if ( getBool() ) {
lengths[4] = 0;
}
parameters["aad"] = getBuffer(lengths[4]);
} else {
parameters["aad_enabled"] = false;
}
if ( tagSize_enabled ) {
parameters["tagSize_enabled"] = true;
if ( getBool() ) {
parameters["tagSize"] = getDefaultSize();
} else {
parameters["tagSize"] = PRNG() % 102400;
}
} else {
parameters["tagSize_enabled"] = false;
}
parameters["cipher"]["cipherType"] = getRandomCipher();
parameters["ciphertextSize"] = PRNG() % (lengths[1] + 9);
cryptofuzz::operation::SymmetricEncrypt op(parameters);
op.Serialize(dsOut2);
}
break;
case CF_OPERATION("SymmetricDecrypt"):
{
const bool aad_enabled = PRNG() % 2;
const bool tag_enabled = PRNG() % 2;
size_t numParts = 0;
numParts++; /* modifier */
numParts++; /* cleartext */
numParts++; /* iv */
numParts++; /* key */
if ( aad_enabled ) {
numParts++; /* aad */
}
if ( tag_enabled ) {
numParts++; /* tag */
}
auto lengths = SplitLength(maxSize - 64, numParts);
parameters["modifier"] = getBuffer(lengths[0]);
if ( getBool() ) {
if ( 16 < lengths[1] ) {
lengths[1] = 16;
}
}
parameters["ciphertext"] = getBuffer(lengths[1]);
parameters["cipher"]["iv"] = getBuffer(lengths[2], true);
parameters["cipher"]["key"] = getBuffer(lengths[3], true);
if ( aad_enabled ) {
parameters["aad_enabled"] = true;
if ( getBool() ) {
lengths[4] = 0;
}
parameters["aad"] = getBuffer(lengths[4]);
} else {
parameters["aad_enabled"] = false;
}
if ( tag_enabled ) {
parameters["tag_enabled"] = true;
parameters["tag"] = getBuffer(lengths[aad_enabled ? 5 : 4], true);
} else {
parameters["tag_enabled"] = false;
}
parameters["cipher"]["cipherType"] = getRandomCipher();
parameters["cleartextSize"] = PRNG() % (lengths[1] + 9);
cryptofuzz::operation::SymmetricDecrypt op(parameters);
op.Serialize(dsOut2);
}
break;
case CF_OPERATION("BignumCalc"):
case CF_OPERATION("BignumCalc_Mod_BLS12_381_R"):
case CF_OPERATION("BignumCalc_Mod_BLS12_381_P"):
case CF_OPERATION("BignumCalc_Mod_BN128_R"):
case CF_OPERATION("BignumCalc_Mod_BN128_P"):
case CF_OPERATION("BignumCalc_Mod_Vesta_R"):
case CF_OPERATION("BignumCalc_Mod_Vesta_P"):
case CF_OPERATION("BignumCalc_Mod_ED25519"):
case CF_OPERATION("BignumCalc_Mod_Edwards_R"):
case CF_OPERATION("BignumCalc_Mod_Edwards_P"):
case CF_OPERATION("BignumCalc_Mod_Goldilocks"):
case CF_OPERATION("BignumCalc_Mod_MNT4_R"):
case CF_OPERATION("BignumCalc_Mod_MNT4_P"):
case CF_OPERATION("BignumCalc_Mod_MNT6_R"):
case CF_OPERATION("BignumCalc_Mod_MNT6_P"):
case CF_OPERATION("BignumCalc_Mod_2Exp64"):
case CF_OPERATION("BignumCalc_Mod_2Exp128"):
case CF_OPERATION("BignumCalc_Mod_2Exp256"):
case CF_OPERATION("BignumCalc_Mod_2Exp512"):
case CF_OPERATION("BignumCalc_Mod_SECP256K1"):
case CF_OPERATION("BignumCalc_Mod_SECP256K1_P"):
case CF_OPERATION("BignumCalc_Mod_BLS12_377_R"):
case CF_OPERATION("BignumCalc_Mod_BLS12_377_P"):
{
parameters["modifier"] = "";
const auto calcop = getRandomCalcOp();
parameters["calcOp"] = calcop;
auto bn1 = getBignum();
const auto bn2 = getBignum();
const auto bn3 = getBignum();
if ( calcop == CF_CALCOP("InvMod(A,B)") || calcop == CF_CALCOP("ExpMod(A,B,C)") ) {
std::optional<std::string> mod = get_op_mod(operation);
if ( mod == std::nullopt ) {
if ( calcop == CF_CALCOP("InvMod(A,B)") ) {
mod = bn2;
} else if ( CF_CALCOP("ExpMod(A,B,C)") ) {
mod = bn3;
} else {
abort();
}
}
const auto mont = from_mont(mutateBinary(getBignum()), *mod);
Pool_Bignum.Set(mont);
if ( getBool() ) {
bn1 = mont;
}
}
parameters["bn1"] = bn1;
parameters["bn2"] = bn2;
parameters["bn3"] = bn3;
parameters["bn4"] = "";
if ( calcop == CF_CALCOP("ExpMod(A,B,C)") && operation == CF_OPERATION("BignumCalc") ) {
if ( PRNG() % 100 == 0 ) {
const auto p = cryptofuzz::mutator::ExpModGenerator::generate_exp_mod(getBignum(true));
if ( p != std::nullopt ) {
parameters = *p;
}
}
}
#if defined(CRYPTOFUZZ_HAVE_Z3)
else if ( (PRNG() % 1000) == 0 ) {
const auto p = cryptofuzz::Z3::Generate(calcop);
if ( p != std::nullopt ) {
parameters = *p;
}
}
#endif
cryptofuzz::operation::BignumCalc op(parameters);
op.Serialize(dsOut2);
}
break;
case CF_OPERATION("BignumCalc_Fp2"):
{
parameters["modifier"] = getBuffer(PRNG() % 1000);
parameters["calcOp"] = getRandomCalcOp();
parameters["bn1"][0] = getBignum();
parameters["bn1"][1] = getBignum();
parameters["bn2"][0] = getBignum();
parameters["bn2"][1] = getBignum();
parameters["bn3"][0] = "";
parameters["bn3"][1] = "";
parameters["bn4"][0] = "";
parameters["bn4"][1] = "";
cryptofuzz::operation::BignumCalc_Fp2 op(parameters);
op.Serialize(dsOut2);
}
break;
case CF_OPERATION("BignumCalc_Fp12"):
{
parameters["modifier"] = getBuffer(PRNG() % 1000);
parameters["calcOp"] = getRandomCalcOp();
if ( Pool_Fp12.Have() && getBool() == true ) {
const auto Fp12 = Pool_Fp12.Get();
#if 0
parameters["bn1"][0] = GET_OR_BIGNUM(Fp12.bn1);
parameters["bn1"][1] = GET_OR_BIGNUM(Fp12.bn2);
parameters["bn1"][2] = GET_OR_BIGNUM(Fp12.bn3);
parameters["bn1"][3] = GET_OR_BIGNUM(Fp12.bn4);
parameters["bn1"][4] = GET_OR_BIGNUM(Fp12.bn5);
parameters["bn1"][5] = GET_OR_BIGNUM(Fp12.bn6);
parameters["bn1"][6] = GET_OR_BIGNUM(Fp12.bn7);
parameters["bn1"][7] = GET_OR_BIGNUM(Fp12.bn8);
parameters["bn1"][8] = GET_OR_BIGNUM(Fp12.bn9);
parameters["bn1"][9] = GET_OR_BIGNUM(Fp12.bn10);
parameters["bn1"][10] = GET_OR_BIGNUM(Fp12.bn11);
parameters["bn1"][11] = GET_OR_BIGNUM(Fp12.bn12);
#endif
parameters["bn1"][0] = Fp12.bn1;
parameters["bn1"][1] = Fp12.bn2;
parameters["bn1"][2] = Fp12.bn3;
parameters["bn1"][3] = Fp12.bn4;
parameters["bn1"][4] = Fp12.bn5;
parameters["bn1"][5] = Fp12.bn6;
parameters["bn1"][6] = Fp12.bn7;
parameters["bn1"][7] = Fp12.bn8;
parameters["bn1"][8] = Fp12.bn9;
parameters["bn1"][9] = Fp12.bn10;
parameters["bn1"][10] = Fp12.bn11;
parameters["bn1"][11] = Fp12.bn12;
} else {
parameters["bn1"][0] = getBignum();
parameters["bn1"][1] = getBignum();
parameters["bn1"][2] = getBignum();
parameters["bn1"][3] = getBignum();
parameters["bn1"][4] = getBignum();
parameters["bn1"][5] = getBignum();
parameters["bn1"][6] = getBignum();
parameters["bn1"][7] = getBignum();
parameters["bn1"][8] = getBignum();
parameters["bn1"][9] = getBignum();
parameters["bn1"][10] = getBignum();
parameters["bn1"][11] = getBignum();
parameters["bn2"][0] = getBignum();
parameters["bn2"][1] = getBignum();
parameters["bn2"][2] = getBignum();
parameters["bn2"][3] = getBignum();
parameters["bn2"][4] = getBignum();
parameters["bn2"][5] = getBignum();
parameters["bn2"][6] = getBignum();
parameters["bn2"][7] = getBignum();
parameters["bn2"][8] = getBignum();
parameters["bn2"][9] = getBignum();
parameters["bn2"][10] = getBignum();
parameters["bn2"][11] = getBignum();
}
if ( Pool_Fp12.Have() && getBool() == true ) {
const auto Fp12 = Pool_Fp12.Get();
#if 0
parameters["bn2"][0] = GET_OR_BIGNUM(Fp12.bn1);
parameters["bn2"][1] = GET_OR_BIGNUM(Fp12.bn2);
parameters["bn2"][2] = GET_OR_BIGNUM(Fp12.bn3);
parameters["bn2"][3] = GET_OR_BIGNUM(Fp12.bn4);
parameters["bn2"][4] = GET_OR_BIGNUM(Fp12.bn5);
parameters["bn2"][5] = GET_OR_BIGNUM(Fp12.bn6);
parameters["bn2"][6] = GET_OR_BIGNUM(Fp12.bn7);
parameters["bn2"][7] = GET_OR_BIGNUM(Fp12.bn8);
parameters["bn2"][8] = GET_OR_BIGNUM(Fp12.bn9);
parameters["bn2"][9] = GET_OR_BIGNUM(Fp12.bn10);
parameters["bn2"][10] = GET_OR_BIGNUM(Fp12.bn11);
parameters["bn2"][11] = GET_OR_BIGNUM(Fp12.bn12);
#endif
parameters["bn2"][0] = Fp12.bn1;
parameters["bn2"][1] = Fp12.bn2;
parameters["bn2"][2] = Fp12.bn3;
parameters["bn2"][3] = Fp12.bn4;
parameters["bn2"][4] = Fp12.bn5;
parameters["bn2"][5] = Fp12.bn6;
parameters["bn2"][6] = Fp12.bn7;
parameters["bn2"][7] = Fp12.bn8;
parameters["bn2"][8] = Fp12.bn9;
parameters["bn2"][9] = Fp12.bn10;
parameters["bn2"][10] = Fp12.bn11;
parameters["bn2"][11] = Fp12.bn12;
} else {
parameters["bn2"][0] = getBignum();
parameters["bn2"][1] = getBignum();
parameters["bn2"][2] = getBignum();
parameters["bn2"][3] = getBignum();
parameters["bn2"][4] = getBignum();
parameters["bn2"][5] = getBignum();
parameters["bn2"][6] = getBignum();
parameters["bn2"][7] = getBignum();
parameters["bn2"][8] = getBignum();
parameters["bn2"][9] = getBignum();
parameters["bn2"][10] = getBignum();
parameters["bn2"][11] = getBignum();
}
parameters["bn3"][0] = "";
parameters["bn3"][1] = "";
parameters["bn3"][2] = "";
parameters["bn3"][3] = "";
parameters["bn3"][4] = "";
parameters["bn3"][5] = "";
parameters["bn3"][6] = "";
parameters["bn3"][7] = "";
parameters["bn3"][8] = "";
parameters["bn3"][9] = "";
parameters["bn3"][10] = "";
parameters["bn3"][11] = "";
parameters["bn4"][0] = "";
parameters["bn4"][1] = "";
parameters["bn4"][2] = "";
parameters["bn4"][3] = "";
parameters["bn4"][4] = "";
parameters["bn4"][5] = "";
parameters["bn4"][6] = "";
parameters["bn4"][7] = "";
parameters["bn4"][8] = "";
parameters["bn4"][9] = "";
parameters["bn4"][10] = "";
parameters["bn4"][11] = "";
cryptofuzz::operation::BignumCalc_Fp12 op(parameters);
op.Serialize(dsOut2);
}
break;
case CF_OPERATION("ECC_PrivateToPublic"):
{
parameters["modifier"] = getBuffer(PRNG() % 1000);
if ( Pool_CurvePrivkey.Have() && getBool() == true ) {
const auto P1 = Pool_CurvePrivkey.Get();
parameters["curveType"] = hint_ecc_mont(P1.curveID);
parameters["priv"] = P1.priv;
} else {
const auto curveID = getRandomCurve();
parameters["curveType"] = hint_ecc_mont(curveID);
if ( getBool() ) {
const auto order = cryptofuzz::repository::ECC_CurveToOrder(curveID);
if ( order != std::nullopt ) {
const auto o = boost::multiprecision::cpp_int(*order);
parameters["priv"] = boost::lexical_cast<std::string>(o-1);
} else {
parameters["priv"] = getBignum();
}
} else {
parameters["priv"] = getBignum();
}
}
cryptofuzz::operation::ECC_PrivateToPublic op(parameters);
op.Serialize(dsOut2);
}
break;
case CF_OPERATION("ECC_ValidatePubkey"):
{
parameters["modifier"] = getBuffer(PRNG() % 1000);
if ( getBool() && Pool_CurveKeypair.Have() ) {
const auto P = Pool_CurveKeypair.Get();
parameters["curveType"] = hint_ecc_mont(P.curveID);
parameters["pub_x"] = getBool() ? getBignum() : P.pub_x;
parameters["pub_y"] = getBool() ? getBignum() : P.pub_y;
} else if ( getBool() && Pool_CurveECC_Point.Have() == true ) {
const auto P = Pool_CurveECC_Point.Get();
parameters["curveType"] = hint_ecc_mont(P.curveID);
parameters["pub_x"] = getBool() ? getBignum() : P.x;
parameters["pub_y"] = getBool() ? getBignum() : P.y;
} else {
parameters["curveType"] = hint_ecc_mont(getRandomCurve());
parameters["pub_x"] = getBignum();
parameters["pub_y"] = getBignum();
}
cryptofuzz::operation::ECC_ValidatePubkey op(parameters);
op.Serialize(dsOut2);
generateECCPoint();
}
break;
case CF_OPERATION("DSA_GenerateParameters"):
{
parameters["modifier"] = getBuffer(PRNG() % 1000);
cryptofuzz::operation::DSA_GenerateParameters op(parameters);
op.Serialize(dsOut2);
}
break;
case CF_OPERATION("DSA_PrivateToPublic"):
{
parameters["modifier"] = "";
if ( Pool_DSA_PQG.Have() && getBool() == true ) {
const auto PQG = Pool_DSA_PQG.Get();
parameters["p"] = PQG.p;
parameters["g"] = PQG.g;
} else {
parameters["p"] = getBignum();
parameters["g"] = getBignum();
}
parameters["priv"] = getBignum();
cryptofuzz::operation::DSA_PrivateToPublic op(parameters);
op.Serialize(dsOut2);
}
break;
case CF_OPERATION("DSA_GenerateKeyPair"):
{
parameters["modifier"] = getBuffer(PRNG() % 1000);
if ( Pool_DSA_PQG.Have() && getBool() == true ) {
const auto PQG = Pool_DSA_PQG.Get();
parameters["p"] = PQG.p;
parameters["q"] = PQG.q;
parameters["g"] = PQG.g;
} else {
parameters["p"] = getBignum();
parameters["q"] = getBignum();
parameters["g"] = getBignum();
}
cryptofuzz::operation::DSA_GenerateKeyPair op(parameters);
op.Serialize(dsOut2);
}
break;
case CF_OPERATION("DSA_Verify"):
{
parameters["modifier"] = getBuffer(PRNG() % 1000);
if ( Pool_DSASignature.Have() && getBool() == true ) {
const auto sig = Pool_DSASignature.Get();
nlohmann::json parameters_;
parameters_["p"] = sig.p;
parameters_["q"] = sig.q;
parameters_["g"] = sig.g;
parameters["parameters"] = parameters_;
parameters["signature"][0] = getBool() ? getBignum() : sig.r;
parameters["signature"][1] = getBool() ? getBignum() : sig.s;
parameters["pub"] = sig.pub;
parameters["cleartext"] = sig.cleartext;
} else {
nlohmann::json parameters_;
parameters_["p"] = getBignum();
parameters_["q"] = getBignum();
parameters_["g"] = getBignum();
parameters["parameters"] = parameters_;
parameters["signature"][0] = getBignum();