.concat(buffer.toString("utf-8").split(" ")[0])

concat(buffer.toString("utf-8").split(" ")[1])

res += buf.slice(0, cr).toString(enc);

const buf2 = Buffer.from('7468697320697320612074c3a97374', 'hex');

var result = hmac.update(Buffer.from(decodeURIComponent(params), 'utf-8')).digest('base64');

var bh = crypto.createHmac('sha256', key).update(sb).digest();

const crypto = require('crypto'); const hmac = crypto.createHmac('sha256', 'a secret'); hmac.update('some data to hash'); console.log(hmac.digest('hex'));

The Hash class is a utility class for creating hashes of data. It can be used in the following ways:

• As a [ stream ] [ ] which is both readable and writable, the data is written to generate a computed hash digest on the readable side

• Use the [ hash.update() ] [ ] and [ hash.digest() ] [ ] methods to generate the computed hash.

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Hmac`Class is a tool for creating encrypted Hmac digests. It can be used in two ways : -as [ stream ] [ _] , which is both readable and writable, the data is written to generate a computed HMAC digest in terms of readability.

• Use the [ hmac.update() ] [ ] and [ hmac.digest() ] [ ] methods to generate the computed HMAC digest.