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I'm trying to port the following php code to javascript on node.js:

$mac = hash_hmac('SHA256', 'string', 'secret', true);
$coded = base64_encode($mac);

I've tried the following:

var Crypto = require('crypto');
var code = Crypto.util.bytesToBase64(Crypto.HMAC(Crypto.SHA256, 'string', 'secret', { asBytes: true }));

I get the error:

TypeError: Object #Object has no method 'HMAC'

I'm new to node.js, what am I doing wrong?

Update:

var code = Crypto.createHmac('SHA256', secret_key).update(to_encode).digest('base64');

I'm trying to port the following php code to javascript on node.js:

$mac = hash_hmac('SHA256', 'string', 'secret', true);
$coded = base64_encode($mac);

I've tried the following:

var Crypto = require('crypto');
var code = Crypto.util.bytesToBase64(Crypto.HMAC(Crypto.SHA256, 'string', 'secret', { asBytes: true }));

I get the error:

TypeError: Object #Object has no method 'HMAC'

I'm new to node.js, what am I doing wrong?

Update:

var code = Crypto.createHmac('SHA256', secret_key).update(to_encode).digest('base64');

• php
• javascript
• node.js
• base64
• sha256

Share Improve this question Follow edited Feb 6, 2012 at 19:20 Alex asked Feb 6, 2012 at 18:57 AlexAlex 1,7221919 silver badges1616 bronze badges 0

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2 Answers 2

Sorted by: Reset to default 10

You want to use the createHmac function instead.

Crypto.createHmac("SHA256", 'secret').update('string').digest('base64')

The method is called createHmac

> Crypto = require('crypto');
{ Credentials: [Function: Credentials],
  createCredentials: [Function],
  Hash: [Function],
  createHash: [Function],
  Hmac: [Function],
  createHmac: [Function],
  Cipher: [Function],
  createCipher: [Function],
  createCipheriv: [Function],
  Decipher: [Function],
  createDecipher: [Function],
  createDecipheriv: [Function],
  Sign: [Function],
  createSign: [Function],
  Verify: [Function],
  createVerify: [Function],
  DiffieHellman: [Function],
  createDiffieHellman: [Function],
  pbkdf2: [Function],
  randomBytes: [Function],
  pseudoRandomBytes: [Function],
  rng: [Function],
  prng: [Function] }

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