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scmp
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README.md

scmp

travis npm downloads

Safe, constant-time comparison of Buffers.

Install

npm install scmp

Why?

To minimize vulnerability against timing attacks.

Example

const scmp = require('scmp');
const Buffer = require('safe-buffer').Buffer;

const hash      = Buffer.from('e727d1464ae12436e899a726da5b2f11d8381b26', 'hex');
const givenHash = Buffer.from('e727e1b80e448a213b392049888111e1779a52db', 'hex');

if (scmp(hash, givenHash)) {
  console.log('good hash');
} else {
  console.log('bad hash');
}