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crypto.createDiffieHellmanGroup() Method in Node.js
The crypto.createDiffieHellmanGroup() is used for creating the DiffieHellmanGroup. This method can also be referred as an alias for crypto.getDiffieHellman.
Syntax
crypto.createDiffieHelmmanGroup(name)
Parameters
The above parameters are described as below −
name – It takes the input for the group name. The input is of type 'string'.
Example
Create a file with name – diffieHellmanGroup.js and copy the below code snippet. After creating file, use the following command to run this code as shown in the example below −
node diffieHellmanGroup.js
diffieHellmanGroup.js
// crypto.createDiffieHellmanGroup Demo Example
// Importing the crypto module
const crypto = require('crypto');
// Defining the group name
const name = 'modp1';
// Creating DiffieHellman group
var diffieHellmanGroup = crypto.createDiffieHellmanGroup(name);
// Displaying the encoded keys for the above group
console.log(diffieHellmanGroup.generateKeys('hex'));Output
C:\home
ode>> node diffieHellmanGroup.js 55963b8969c6b5d67dc7a2d80e6bcbea55bdb50000661c8d6e026be5366619edb9971755942fd8 fa5cba5d66a0326db9957d0ff412bfe22ee2431398206b97210b86c802e1be6777bce3d6cf735f bb3c7cdee4016db9d252a66be82d58158a21
Example
Let's take a look at one more example.
// crypto.createDiffieHellmanGroup Demo Example
// Importing the crypto module
const crypto = require('crypto');
// Defining the group name
const name = 'modp17';
// Creating DiffieHellman group
var diffieHellmanGroup = crypto.createDiffieHellmanGroup(name);
// Displaying the encoded keys for the above group
console.log(diffieHellmanGroup.generateKeys('base64'));Output
C:\home
ode>> node diffieHellmanGroup.js p3PwqFTpIqOIE3mP+iaMHEosAy8jPCdRDck1HtvbFaMMvJzlfihwzLZB0ZCoEzDRSnlHo+0NjOkNLM 0jM0usS8Ri5wwxw19qwjr00HvxGf0crQtd8ytIVLFX2WWXaT7d8XR/vtw1BUgUVg0mNhKGTLDcVy1A 7CRHzCrDqePaVqnU0QkR2t7S1BvmaMXvkToAdzZnJMPSjZWPVOHzMTOTnpI450TQMLFLv/YGUmKbAO BaAVbuwfWOHVQrcxgThGGtMRJjjayh0Q77RmoqpKcMWceJPlQhFIMG/jFrNEaacbgb0Ctnm1/d1UgE UTIg0phE4/1GXdnEDRPGVXURaxzPU+N48QVAB7Dyzpcq4k2f/mARLILPufEP/8FBawmMDoyAE4PS/Z 1RFwwuInhdbhgxTTRV+nkzSwTt0V51q+B9fek2xDfeWDqwibr+OWdU0DXs07mUsFVJdVJSZFM7txIg UYH/6Tb+EnIt//JVR7hUrphWFhZCE1+7AcrHfNNX/lq8ukTNU+Bh6A9c1g9Ua2MjGXGLADAw7S7Hvq OfVWy/f9JAbxt6bIz7LswioLGsaeKuEhGOxK8WRkeIbf1wbKF4kZQC8Q1V4XHFXI0wQ/Qhc7yyOZUc /lwGsUnCqVR+Fqibd1YHk5vcaUfnQMIyvwAXtRBKz49PLc6/V4deDX/243zCe1UucxPodjuyYbRwx0 9Kqr8yT7fVkctF+eQNSOCABDpykwPxz/P2X6Tq9NW4KcOm0uZ+39AVWl7pMmLb8rf8VKJQLCGUoMYl XEwG0XnERJk4AmxDWOICFDcgVrXhJn5OyJzysc9gYOlMrlEVpJzk55lz1JXld6mSk3YMrGZyDE2OHH SzDx9EWpH8MJZpdPtDQ3/njptVM7m9i76fM7x5irqo+tonOy2myJPVBOl9gcMs556p7p0MRWVmi0AP ulIONRicQeMjHxFR5Di8RDjfXrHz66CFJa9vEzhKNMZDQon2XdZlzgxr35cFdRIQNQq1zeGGzny7N4 03NGbPZP5b
Updated on: 20-May-2021
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