Xornet-Euphoria

import pickle
import pickletools
import payload_crafter


class RunLengthCrafter(payload_crafter.Crafter):
    def __init__(self, *, check_stop=False) -> None:
        super().__init__(check_stop=check_stop)

Xornet-Euphoria

// utility functions

// convert float64 <-> uint64
let buf = new ArrayBuffer(8);
let float_buf = new Float64Array(buf);
let uint_buf = new BigUint64Array(buf);

function f2i(v) {
    float_buf[0] = v;
    return uint_buf[0];

Xornet-Euphoria

// utility functions

// convert float64 <-> uint64
let buf = new ArrayBuffer(8);
let float_buf = new Float64Array(buf);
let uint_buf = new BigUint64Array(buf);

function f2i(v) {
    float_buf[0] = v;
    return uint_buf[0];

Xornet-Euphoria

// utility functions

// convert float64 <-> uint64
let buf = new ArrayBuffer(8);
let float_buf = new Float64Array(buf);
let uint_buf = new BigUint64Array(buf);

function f2i(v) {
    float_buf[0] = v;
    return uint_buf[0];

Xornet-Euphoria

// only tested by `./d8 exploit.js`
// utility functions

// convert float64 <-> uint64
let buf = new ArrayBuffer(8);
let float_buf = new Float64Array(buf);
let uint_buf = new BigUint64Array(buf);

function f2i(v) {
    float_buf[0] = v;

Xornet-Euphoria

from typing import List, Optional


def calc_f(f: List[int], x: int, m: Optional[int]=None) -> int:
    ret = 0
    for i, a in enumerate(f):
        term = a * x**i
        if m is not None:
            term %= m

Xornet-Euphoria

from Crypto.Util.number import getPrime, getRandomInteger, long_to_bytes


# ceil(numerator / denominator)
def frac_ceil(numerator, denominator):
    if numerator % denominator == 0:
        return numerator // denominator
    return numerator // denominator + 1