derhuerst / about.md

Created August 11, 2017 13:16

playing around with HTTP Live Streaming (HLS)

convert any audio to ADTS AAC audio:

ffmpeg \
	-i 01-fiery-crash.mp3 \
	-vn -ac 2 -acodec aac \
	01-fiery-crash.aac

joepie91 / random.md

Last active November 16, 2024 19:07

Secure random values (in Node.js)

Not all random values are created equal - for security-related code, you need a specific kind of random value.

A summary of this article, if you don't want to read the entire thing:

Don't use Math.random(). There are extremely few cases where Math.random() is the right answer. Don't use it, unless you've read this entire article, and determined that it's necessary for your case.
Don't use crypto.getRandomBytes directly. While it's a CSPRNG, it's easy to bias the result when 'transforming' it, such that the output becomes more predictable.
If you want to generate random tokens or API keys: Use uuid, specifically the uuid.v4() method. Avoid node-uuid - it's not the same package, and doesn't produce reliably secure random values.
If you want to generate random numbers in a range: Use random-number-csprng.

You should seriously consider reading the entire article, though - it's

tuxfight3r / 01.bash_shortcuts_v2.md

Last active November 18, 2024 14:16

Bash keyboard shortcuts

Bash Shortcuts

Moving

command	description
ctrl + a	Goto BEGINNING of command line