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October 27, 2024 00:48
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Generate secret key in NodeJS
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| require('crypto').randomBytes(48, function(err, buffer) { var token = buffer.toString('hex'); console.log(token); }); |
You don't even need the var: console.log(require('crypto').randomBytes(48).toString('hex'))
you could go even further and run it as a bash command node -e console.log(require('crypto').randomBytes(48).toString('hex'))
For me, running it in zsh requires quotes.
node -e "console.log(require('crypto').randomBytes(48).toString('hex'))"
The guys from Hapi.js recommends to use base64 encoding.
node -e "console.log(require('crypto').randomBytes(256).toString('base64'));"
node -e "console.log( require('crypto').randomBytes(24).toString('base64url'))"
You can omit console.log by using -p option: node -p "require('crypto').randomBytes(24).toString('base64url')"
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This can also be run synchronously:
var token = require('crypto').randomBytes(48).toString('hex'); console.log(token);