ed25519 signature in NodeJs

gputignano · August 2, 2023, 3:10pm

I’m reading the documentation about using new ed25519 keys. The example is in Python and the documentation uses:

signature = base64.b64encode(private_key.sign(payload.encode('ASCII')))

How can I convert this line in NodeJs?
Thanks.

dino · August 3, 2023, 3:51am

github.com

binance/binance-connector-node/blob/master/src/APIBase.js#L61


      
              .createHmac('sha256', this.apiSecret)
              .update(queryString)
              .digest('hex')
          } else {
            if (this.privateKeyAlgo === PrivateKeyAlgo.RSA) {
              signature = crypto.sign('RSA-SHA256', Buffer.from(queryString), {
                key: this.privateKey,
                passphrase: this.privateKeyPassphrase
              }).toString('base64')
            } else if (this.privateKeyAlgo === PrivateKeyAlgo.ED25519) {
              signature = crypto.sign(null, Buffer.from(queryString), {
                key: this.privateKey,
                padding: crypto.constants.RSA_PKCS1_PSS_PADDING,
                saltLength: crypto.constants.RSA_PSS_SALTLEN_DIGEST
              }).toString('base64')
            } else {
              throw new ConnectorClientError("privateKeyAlgo must be either 'RSA' or 'ED25519'")
            }
            signature = encodeURIComponent(signature)
          }

This code should be helpful with ed25519 key signature