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import struct
import ubluetooth as bt
from micropython import const

MANUFACTURER_ID         = const(0x004C)
DEVICE_TYPE             = const(0x02)
DATA_LENGTH             = const(0x15)
BR_EDR_NOT_SUPPORTED    = const(0x04)
FLAG_BROADCAST          = const(0x01)
MANUFACTURER_DATA       = const(0xFF)

JCloudYu

Web Cryptography API Examples

Live Table: https://diafygi.github.io/webcrypto-examples/

I couldn't find anywhere that had clear examples of WebCryptoAPI, so I wrote examples and made a live table with them. Pull requests welcome!

1. RSASSA-PKCS1-v1_5

• generateKey | importKey |

JCloudYu

About

This file was generated automatically based on this two sources:

1. /etc/nginx/mime.types
2. http://www.garykessler.net/library/file_sigs.html

File format

This is a JSON object by following structure:

[string ext] : {
 signs: [sign]

JCloudYu

package main

import (
	"crypto/aes"
	"crypto/cipher"
	"crypto/rand"
	"crypto/sha256"
	"encoding/base64"
	"fmt"
	"io"

JCloudYu

#include <dirent.h>
#include <iterator>
#include <cstdlib>
#include <cstring>
#include <sstream>
#include <iostream>
#include <stdlib.h>
#include <string>
#include <sys/stat.h>
#include <syslog.h>

JCloudYu

/**
 *	Author: ChenyChen, JCloudYu
 *	Create: 2020/01/29
 **/
(async()=>{
	"use strict";

	const START_SIG = "//@export";
	const START_SIG_LEN = START_SIG.length;
	const END_SIG = "//@endexport";

JCloudYu

// ES6

class AngularPromise extends Promise {
    constructor(executor) {
        super((resolve, reject) => {
            // before
            return executor(resolve, reject);
        });
        // after
    }

JCloudYu

# Generate the private and public keys
openssl ecparam -name secp256k1 -genkey -noout | openssl ec -text -noout > key

# Extract the public key and remove the EC prefix 0x04
cat key | grep pub -A 5 | tail -n +2 | tr -d '\n[:space:]:' | sed 's/^04//' > pub

# Extract the private key and remove the leading zero byte
cat key | grep priv -A 3 | tail -n +2 | tr -d '\n[:space:]:' | sed 's/^00//' > priv

# Generate the hash and take the address part