How to create private key and public key with web3?

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I want to create a private key and public key, basically a new account in Ethereum using web3. But I want to generate a private key that is 32 bytes in length. Does anyone know how to generate the same? Used the following code, but not able to generate a 32 bytes long private key.

web3.eth.accounts.create();

web3js web3 ethereum javascript
2 Answers

Ethereum uses 32 bytes (which is 64 hex characters) long private keys.

You can access the private key generated using the accounts.create() method (docs) in the privateKey property.

const account = web3.eth.accounts.create();
console.log(account.privateKey);
user_16931920 

web3.eth.accounts.create()

address: '0xB9b1415Dbd1B3C9a5890433DF8B2b389445CC6Fa',
  privateKey: '0x498262a4afde2bdd9e1bef3aafc6442ec36ccf167e527457a211118de93346ba',
  signTransaction: [Function: signTransaction],
  sign: [Function: sign],
  encrypt: [Function: encrypt]

the private key is here '0x498262a4afde2bdd9e1bef3aafc6442ec36ccf167e527457a211118de93346ba' this is of a 64 hex format.

so the 32 bytes length private key is 498262a4afde2bdd9e1bef3aafc6442ec36ccf167e527457a211118de93346ba

(remove the 0x)

user_156895160
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