wuriyanto48

const crypto = require('crypto');

const ALGORITHM = 'aes-256-gcm';

class AESGcmNode {
    constructor(key) {
        if (key.length < 32) {
            throw new Error("key len should be 32 byte");
        }
        this.key = Buffer.from(key);

wuriyanto48

Go / C++ bindings example

This is an example of Go code calling to a C++ library with a C wrapper.

Build

go build  # this only ensures it compiles

wuriyanto48

• /bin (and /sbin) were intended for programs that needed to be on a small / partition before the larger /usr, etc. partitions were mounted. These days, it mostly serves as a standard location for key programs like /bin/sh, although the original intent may still be relevant for e.g. installations on small embedded devices.

• /sbin, as distinct from /bin, is for system management programs (not normally used by ordinary users) needed before /usr is mounted.

• /usr/bin is for distribution-managed normal user programs.

• There is a /usr/sbin with the same relationship to /usr/bin as /sbin has to /bin.

• /usr/local/bin is for normal user programs not managed by the distribution package manager, e.g. locally compiled packages. You should not install them into /usr/bin because future distribution upgrades may modify or delete them without warning.

wuriyanto48

You need to install paramiko package

$ pip install paramiko

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Install

Install JRE 11

$ sudo apt install openjdk-11-jre-headless

Install Scala 2 https://www.scala-lang.org/download/scala2.html

$ wget https://downloads.lightbend.com/scala/2.13.7/scala-2.13.7.tgz

wuriyanto48

import ftplib
import socket
from pathlib import Path

class MyFTP_TLS(ftplib.FTP_TLS):
    """Explicit FTPS, with shared TLS session"""
    def ntransfercmd(self, cmd, rest=None):
        conn, size = ftplib.FTP.ntransfercmd(self, cmd, rest)
        if self._prot_p:
            conn = self.context.wrap_socket(conn,

wuriyanto48

Generate Private Key

$ openssl genrsa -out private.key 2048

Generate CSR with Private Key and fill the required fields

$ openssl req -new -key private.key -out csr.txt

wuriyanto48

// wuriyanto
package main

import (
	"fmt"
	"math/rand"
    	//"time"
)

type Color struct {

wuriyanto48

def encode_uint32(n: int):
    res = []
    for i in range(4):
        r_shift = 24 - 8 * i
        d = (n >> r_shift) & 0xFF
        res.append(d)
    return res

def decode_uint32(l: list, order='be'):
    if order == 'le':

wuriyanto48

package main

import (
	"fmt"
)

func main() {
	fmt.Println(isOdd(2))
}