DrSensor

$ esptool.py chip_id
esptool.py v2.5.1
Found 1 serial ports
Serial port /dev/ttyUSB0
Connecting....
Detecting chip type... ESP8266
Chip is ESP8266EX
Features: WiFi
MAC: 84:f3:eb:0b:dd:53

nielsutrecht

import javax.crypto.Cipher;
import java.io.InputStream;
import java.security.*;
import java.util.Base64;

import static java.nio.charset.StandardCharsets.UTF_8;

public class RsaExample {
    public static KeyPair generateKeyPair() throws Exception {
        KeyPairGenerator generator = KeyPairGenerator.getInstance("RSA");

Spring3

//client = HttpClient
//captchaUserId = user id from http://2captcha.com

private String solveCaptcha(WebDriver driver) throws Exception{
        WebElement captchaChallenge = driver.findElement(By.id("recaptcha_challenge_image"));
        if (captchaChallenge != null){
            String imageURL = captchaChallenge.getAttribute("src");
            InputStream in = new BufferedInputStream(new URL(imageURL).openStream());
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            for (int i; (i = in.read()) != -1;){

alessandroleite

//Generate a self signed X509 certificate with Bouncy Castle.
//        StringBuilder sb = new StringBuilder();
//        
//        for (int i = 0; i < pub.length; ++i)
//        {
//            sb.append(Integer.toHexString(0x0100 + (pub[i] & 0x00FF)).substring(1));
//        }
//        
//        System.out.println(sb);
//        sb.setLength(0);

christianroman

import cv2.cv as cv
import tesseract
gray = cv.LoadImage('captcha.jpeg', cv.CV_LOAD_IMAGE_GRAYSCALE)
cv.Threshold(gray, gray, 231, 255, cv.CV_THRESH_BINARY)
api = tesseract.TessBaseAPI()
api.Init(".","eng",tesseract.OEM_DEFAULT)
api.SetVariable("tessedit_char_whitelist", "0123456789abcdefghijklmnopqrstuvwxyz")
api.SetPageSegMode(tesseract.PSM_SINGLE_WORD)
tesseract.SetCvImage(gray,api)
print api.GetUTF8Text()