WangYihang

import math
import random
import matplotlib.pyplot as plt

def generate_candidates(M):
    r = list(range(M))
    random.shuffle(r)
    return r

def percent_n_in_m_rule(N, M):

WangYihang

; Calculate the root of an equation using numerical computation
; (scheme is hard to write :(
; 2022-01-23
; Yihang Wang <wangyihanger@gmail.com>

(define (same-sign? a b) (or (and (>= a 0) (>= b 0)) (and (<= a 0) (<= b 0))))
(define (average a b) (/ (+ a b) 2))
(define (abs x) (cond
    ((< x 0) (- x))
    ((= x 0) 0)

WangYihang

upstream jupyter-notebook {
	server localhost:8888;
}

server{
	listen 8080;
	server_name notebook.example.com;

	location / {
		proxy_pass            http://jupyter-notebook;

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'''
Solution for XOR challenge (http://scz.617.cn:8/misc/202007101723.txt)
'''

from termcolor import colored
from colorama import init

import string
import math
import shlex

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#include <signal.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/prctl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <syslog.h>
#include <unistd.h>

WangYihang

from sys import version
import semver
import requests
import itertools
from bs4 import BeautifulSoup

def md5(data):
    if type(data) is str:
        data = bytes(data, encoding='utf-8')
    return __import__('hashlib').md5(data).hexdigest()

WangYihang

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

/**
 * BrainFuck Interpreter in C [1-2]
 * Wang Yihang <wangyihanger@gmail.com>
 * 
 * == Run

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from __future__ import print_function
import frida
import sys

device = frida.get_device_manager().add_remote_device('127.0.0.1:27042')
session = device.attach(int(sys.argv[1]))

code = '''
Interceptor.attach(Module.findExportByName("libssl-ws.so", "tls1_setup_key_block"), {
    onEnter: function(args) {

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import random

def solve():
    '''
    area of unit circle at (0.5, 0.5) = pi * (0.5 ^ 2)
    area of unit trangle at (0.5, 0.5) = 1 * 1
    the ratio of the number of points that fall in the circle to the number 
    of all points will approximate the ratio of the area of the circle to 
    the area of the entire square.
    '''

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Keybase proof

I hereby claim:

• I am wangyihang on github.
• I am wangyihang (https://keybase.io/wangyihang) on keybase.
• I have a public key ASAgocxodMp98MAOht9nFCua-961GQ0TSG_HjU7IceBnsAo

To claim this, I am signing this object: