How does MetaMask generate your keys?

In the world of cryptographic technologies, your accounts are only as safe as your secret keys are secret and unguessable. For that reason, it's healthy to ask: Where are my MetaMask keys coming from? Well, get ready for a technical answer:

For a browser-based piece of software like MetaMask, there is no source of randomness (or entropy) that is more secure than the browser's native Crypto.getRandomValues function, which seeds itself with your operating system's entropy source, making this the best source of random numbers that a browser-based application can provide without your help.

Someday MetaMask may add more advanced features, to allow you to help generate your own random numbers, for example by wiggling your mouse, flipping coins, babbling into the microphone, or something, but for now, we're providing the simplest solution possible.

Was this article helpful?
44 out of 73 found this helpful

Articles in this section

MetaMask Support on Twitter
Beware of scam Twitter accounts. Never give anyone your Secret Recovery Phrase!
MetaMask YouTube
Fow how-to and support videos please visit our channel