3
submitted 1 month ago by [email protected] to c/[email protected]

How would one include a passphrase when using the web crypto API when working with asymmetric encryption. I was able to figure out how to do asymmetric encryption without a passphrase using the web crypto API and was able to figure out how to do asymmetric encryption using the crypto library in NodeJS.

Asymmetric encryption using Web Crypto API (No Passphrase)

import { webcrypto } from 'crypto';

const MY_TEXT = 'My Text';

(async function () {
	const { publicKey, privateKey } = await webcrypto.subtle.generateKey(
		{
			name: 'rsa-Oaep',
			modulusLength: 2048,
			publicExponent: new Uint8Array([1, 0, 1]),
			hash: 'sha-256',
		},
		true,
		['encrypt', 'decrypt']
	);

	const encryptedTextArrayBuffer = await webcrypto.subtle.encrypt(
		{
			name: 'rsa-Oaep',
		},
		publicKey,
		new TextEncoder().encode(MY_TEXT)
	);

	let encryptedTextUint8Array = new Uint8Array(encryptedTextArrayBuffer);
	const ENCRYPTED_TEXT = convertUint8ArrayToBase64String(encryptedTextUint8Array);

	console.log(ENCRYPTED_TEXT);

	encryptedTextUint8Array = convertBase64StringToUint8Array(ENCRYPTED_TEXT);

	const decryptedArrayBuffer = await webcrypto.subtle.decrypt(
		{
			name: 'rsa-Oaep',
		},
		privateKey,
		encryptedTextUint8Array.buffer
	);

	console.log(new TextDecoder().decode(decryptedArrayBuffer));
})();

function convertUint8ArrayToBase64String(uint8Array) {
	const CHARACTER_CODES = String.fromCharCode(...uint8Array);
	return btoa(CHARACTER_CODES);
}

function convertBase64StringToUint8Array(base64String) {
	const CHARACTER_CODES = atob(base64String);

	const uint8Array = new Uint8Array(CHARACTER_CODES.length);
	uint8Array.set(
		new Uint8Array(
			[...CHARACTER_CODES].map(function (currentCharacterCode) {
				return currentCharacterCode.charCodeAt(0);
			})
))}
55
submitted 1 month ago by [email protected] to c/[email protected]

I created a simple Bash script that will always disable the default/internal monitor on your laptop when using AR glasses (or any other external monitor). I find this useful for when using AR glasses such as the XReal One which allows you to change the mode from regular mode to ultra-wide mode and when doing this, it will act as your unplugging the XReal ones and plugging in XReal one again in a new mode, causing the interal laptop display to become enabled.

To keep the laptop display always off, weather the laptop lid is either closed or open, this simple bash script will always disable the laptop screen every X seconds (You can change it by changing the wait variable)

Simply copy this script and create a new bash script such as disable-display.sh, make the script file executable and add it to your startup applications and it will run in the background. You will need to run xrandr command with all of your displays enabled to get the names of the displays and change the variable names in the script accordingly.

NOTE: This script may not work with a full Wayland setup and may only work on X11.

Enjoy

#!/bin/bash

#RUN xrandr TO GET THE NAMES OF THE DISPLAYS AND SET THE VARIABLES TO THESE NAMES

readonly default_display="eDP"
readonly external_display="USB-C-0"

readonly wait=5

while true; do
    #Check if there is an external display connected
    if xrandr | grep -q "$external_display connected"; then
        #Disable the internal display
        xrandr --output $default_display --off
    fi

    sleep $wait
done
15
submitted 1 month ago by [email protected] to c/[email protected]

I created a simple Bash script that will always disable the default/internal monitor on your laptop when using AR glasses (or any other external monitor). I find this useful for when using AR glasses such as the XReal One which allows you to change the mode from regular mode to ultra-wide mode and when doing this, it will act as your unplugging the XReal ones and plugging in XReal one again in a new mode, causing the interal laptop display to become enabled.

To keep the laptop display always off, weather the laptop lid is either closed or open, this simple bash script will always disable the laptop screen every X seconds (You can change it by changing the wait variable)

Simply copy this script and create a new bash script such as disable-display.sh, make the script file executable and add it to your startup applications and it will run in the background. You will need to run xrandr command with all of your displays enabled to get the names of the displays and change the variable names in the script accordingly.

NOTE: This script may not work with a full Wayland setup and may only work on X11.

Enjoy

#!/bin/bash

#RUN xrandr TO GET THE NAMES OF THE DISPLAYS AND SET THE VARIABLES TO THESE NAMES

readonly default_display="eDP"
readonly external_display="USB-C-0"

readonly wait=5

while true; do
    #Check if there is an external display connected
    if xrandr | grep -q "$external_display connected"; then
        #Disable the internal display
        xrandr --output $default_display --off
    fi

    sleep $wait
done
13
submitted 8 months ago by [email protected] to c/[email protected]

I would like to share a bash script I made for when you want to simply run a rust script once and delete it. Instead of having compile the script with rustc, running the binary and then deleting the binary, you can achive all of this with this bash script below.

The first argument will be the rust script file name. The .rs file extension is optional. The rest of the arguments are passed into the executed binary.

Simply name the bash script to something like rust-run.sh.

#!/bin/bash

#Get file path from first parameter
path=$(dirname "$1")

#Get file name from first parameter
fileName=$(basename "$1")
fileName="${fileName%'.rs'}"

#Compile executable and save it in the same directory as the rust script
rustc "${path}/${fileName}.rs" -o "${path}/${fileName}"

#If rustc commands retuned any errors, unable to compile the rust script
if [ $? -ne 0 ]; then
    return
fi

#Execute compilled executable and pass the rest of the parameters into the executable
"${path}/${fileName}" ${*:2}

#Delete compillled executable
rm "${path}/${fileName}"

If someone wants to rewrite this in rust or add these features into the rustc, feel free to do so.

-2
submitted 8 months ago* (last edited 8 months ago) by [email protected] to c/[email protected]

I would like to share a bash script I made for when you want to simply run a rust script once and delete it. Instead of having compile the script with rustc, running the binary and then deleting the binary, you can achive all of this with this bash script below.

The first argument will be the rust script file name. The .rs file extension is optional. The rest of the arguments are passed into the executed binary.

Simply name the bash script to something like rust-run.sh.

#!/bin/bash

#Get file path from first parameter
path=$(dirname "$1")

#Get file name from first parameter
fileName=$(basename "$1")
fileName="${fileName%'.rs'}"

#Compile executable and save it in the same directory as the rust script
rustc "${path}/${fileName}.rs" -o "${path}/${fileName}"

#If rustc commands retuned any errors, unable to compile the rust script
if [ $? -ne 0 ]; then
    return
fi

#Execute compilled executable and pass the rest of the parameters into the executable
"${path}/${fileName}" ${*:2}

#Delete compillled executable
rm "${path}/${fileName}"

If someone wants to rewrite this in rust or add these features into the rustc, feel free to do so.

10
submitted 8 months ago by [email protected] to c/[email protected]

Should I create functions/methods for packages/libraries that allow optional parameters to accept null?

In this example below, I set the 3rd and 4th parameter as null which will act as the default value.

myLibrary.myFunction(1, 7, null, null, true);

Or is this not a good way to go about creating functions for a package and therefore should not accept null as a parameter value.

myLibrary.myFunction(1, 7, false, 4, true);
12
submitted 8 months ago by [email protected] to c/[email protected]

Should I create functions for packages/libraries that allow optional parameters to accept null?

In this example below, I set the 3rd and 4th parameter as null which will act as the default value.

myLibrary::myFunction(1, 7, null, null, true);

Or is this not a good way to go about creating functions for a package and therefore should not accept null as a parameter value.

myLibrary::myFunction(1, 7, false, 4, true);
12
submitted 9 months ago by [email protected] to c/[email protected]

Just started learning Rust today and got Rust installed, got the hello world example compiled and running. I installed rust-analyzer and CodeLLDB extensions in VSCode. Enable the debug.allowBreakpointsEverywhere settings to VSCode to be true. Setup a debug configuration in VSCode.

However I keep getting errors from rust-analyzer when I run the debugger...

2024-10-06T22:16:04.808655Z ERROR FetchWorkspaceError: rust-analyzer failed to load workspace: Failed to load the project at /home/john/Documents/Snippets/Rust/Cargo.toml: Failed to read Cargo metadata from Cargo.toml file /home/john/Documents/Snippets/Rust/Cargo.toml, Some(Version { major: 1, minor: 81, patch: 0 }): Failed to run `cd "/home/john/Documents/Snippets/Rust" && RUSTUP_TOOLCHAIN="/home/john/.rustup/toolchains/stable-x86_64-unknown-linux-gnu" "/home/john/.cargo/bin/cargo" "metadata" "--format-version" "1" "--manifest-path" "/home/john/Documents/Snippets/Rust/Cargo.toml" "--filter-platform" "x86_64-unknown-linux-gnu"`: `cargo metadata` exited with an error: error: failed to parse manifest at `/home/john/Documents/Snippets/Rust/Cargo.toml`

Caused by:
  no targets specified in the manifest
  either src/lib.rs, src/main.rs, a [lib] section, or [[bin]] section must be present

I not sure how to fix this.

I would like to get the VSCode debugger to work for launch debugging, attach debugging and launch and attach debugging for rust running inside a docker container. This will be a good setup for getting started I believe.

This is my VSCode debugger configuration...

{
	// Use IntelliSense to learn about possible attributes.
	// Hover to view descriptions of existing attributes.
	// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
	"version": "0.2.0",
	"configurations": [
		{
			"type": "lldb",
			"request": "launch",
			"name": "Debug",
			"program": "${workspaceFolder}/hello-world",
			"args": [],
			"cwd": "${workspaceFolder}"
		}
	]
}

Any help and advice will be most appreciated.

2
submitted 9 months ago* (last edited 9 months ago) by [email protected] to c/[email protected]

When I submit the form twice, three times, etc. I get duplicated form field data. Here is the console output of the form data after every submissions.

Also all the field values are always an array, even if the input field for that value is a text input field? Not sure if this is another issue or not.

Here is my code. Only one JS file and one HTML file...

import fs from 'fs';
import http from 'http';

import { formidable as formidablePackage } from 'formidable';

const port = 8080;

//Will create horizontal line that will fit the width of the terminal window
const horizontalLine = '='.repeat(process.stdout.columns);

const formidable = formidablePackage({
	allowEmptyFiles: true,
	minFileSize: 0,
});

http
	.createServer(async (request, response) => {
		if (request.method === 'POST') {
			let [formFieldData, formFileData] = await formidable.parse(request);

			console.log(formFieldData);
		}

		response.setHeader('Content-Type', 'text/html');

		fs.createReadStream('form.html').pipe(response);
	})
	.listen(port);
<form method="post" enctype="multipart/form-data">
	<input name="myText" />
	<br />
	<input type="checkbox" name="myCheckboxGroupA" />
	<input type="checkbox" name="myCheckboxGroupA" />
	<input type="checkbox" name="myCheckboxGroupA" />
	<br />
	<input type="file" name="myFileA" />
	<br />
	<input type="file" name="myFileB" multiple />
	<br />
	<input type="file" name="myFileC" multiple directory webkitdirectory />
	<br />
	<input type="submit" />
</form>

These are the console logs

$ node form.js
{ myText: [ 'hello world' ], myCheckboxGroupA: [ 'on' ] }
{
  myText: [ 'hello world', 'hello world' ],
  myCheckboxGroupA: [ 'on', 'on' ]
}
{
  myText: [ 'hello world', 'hello world', 'hello world' ],
  myCheckboxGroupA: [ 'on', 'on', 'on' ]
}
{
  myText: [ 'hello world', 'hello world', 'hello world', 'hello world' ],
  myCheckboxGroupA: [ 'on', 'on', 'on', 'on' ]
}

These are the console logs I expected

$ node form.js
{ myText:  'hello world' , myCheckboxGroupA: [ 'on' ] }
{ myText:  'hello world' , myCheckboxGroupA: [ 'on' ] }
{ myText:  'hello world' , myCheckboxGroupA: [ 'on' ] }
{ myText:  'hello world' , myCheckboxGroupA: [ 'on' ] }
132
submitted 9 months ago by [email protected] to c/[email protected]

I hope this project gets more contributors to help make it as good or better than Newpipe. Written in Dart using Flutter can allow it to be compiled for Android, iOS and desktop

1
submitted 10 months ago by [email protected] to c/[email protected]

In CSGO you could change the difficulty setting for the bots. Can you adjust the difficulty setting for bots in CS2?

5
submitted 10 months ago by [email protected] to c/[email protected]

Are CSGO workshop maps not compatible with CS2? Does this mean that the 200+ custom workshop maps I have collected over the years are now no longer playable?

I cannot see any workshop maps in the game menu that I have subscribed and downloaded. I even tried to reinstall CS2 on my computer to see if that will fix the problem.

I am running CS2 on Ubuntu (Linux)

[-] [email protected] 3 points 11 months ago

VSCodium > VSCode

[-] [email protected] 3 points 1 year ago* (last edited 1 year ago)

I think stablecoins will always have a centralized point of failure. Weather it is an algorithm, or having the coin backed by the actual asset.

I think the best stablecoins are backed by the asset 1 to 1 or a little more then 1 to 1. Most stablecoins that do this are token on smart chain contracts which have another vulnerability which is being a smart contract. Smart contracts could contain a vulnerability and if it does have a vulnerability, a new contract will need to be made and users will have to switch their old token to the new tokens. Also censorship is an issue. https://cryptonews.com/news/tether-takes-action-blacklists-validator-address-linked-25-million-mev-bot-drain-heres-what-happened.htm

And these stablecoins are not private. The only private stablecoin platform out there is Haven but Haven assets are not backed 1 to 1.

I hope there are plently of stablecoins issued on Zano in the future. Zano allows you to create an asset without creating a smart contract. All assets on Zano are private. I would like to see Tether, USDC and other issue stablecoins on Zano. Trusting the issuers on backing the stablecoin and trusting the issuer to secure their private keys to prevent hackers from inflating the asset will be the only vulnerabilities, but you will have privacy and a censorship resistant stablecoin!

[-] [email protected] 6 points 1 year ago

https://github.com/AgoraDesk-LocalMonero/agoradesk-app-foss/issues/296

Please upvote this issue if you want to see all the source code for AgoraDesk/LocalMonero be released!

[-] [email protected] 19 points 1 year ago* (last edited 1 year ago)

Please add the crypto addresses to the site sidebar under donations. You also may want to consider accepting BTC, BCH and LTC. Glad your accepting XMR though for private donations.

[-] [email protected] 58 points 1 year ago* (last edited 1 year ago)

Discord is the worst. Requires a phone number, does not allow email aliases and logs your chats.

Matrix and SimpleX is way better

[-] [email protected] 4 points 2 years ago

I wish session remade their client with flutter and made it feature rich like Element/Jami/SimpleX.

I like how sessions handles users IDs as seed phrases and also wishes sessions will allow you to manage multiple user IDs from a single seed phrase.

Nostr FTW!

[-] [email protected] 6 points 2 years ago

Otherwise -d does nothing different to the container, just runs the container "in the background" so you can continue entering other commands in the terminal without having to open another terminal tab or terminal window?

[-] [email protected] 24 points 2 years ago

Karma system was a horrible feature on reddit.

[-] [email protected] 4 points 2 years ago

To my understanding vertical scaling has limits which is the servers limitations as horizontal scaling if infinite since unlimited servers can be added

[-] [email protected] 9 points 2 years ago

What country is lemmy.world hosted in?

[-] [email protected] 7 points 2 years ago

Could Threads essentially cause a kinda DDOS attack onto other instances or bloating other instances with data?

[-] [email protected] 3 points 2 years ago* (last edited 2 years ago)
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