buffer-equal-constant-time
Constant-time Buffer
comparison for node.js. Should work with browserify too.
npm install buffer-equal-constant-time
Usage
var bufferEq = require('buffer-equal-constant-time');
var a = new Buffer('asdf');
var b = new Buffer('asdf');
if (bufferEq(a,b)) {
// the same!
} else {
// different in at least one byte!
}
If you'd like to install an .equal()
method onto the node.js Buffer
and SlowBuffer
prototypes:
require('buffer-equal-constant-time').install();
var a = new Buffer('asdf');
var b = new Buffer('asdf');
if (a.equal(b)) {
// the same!
} else {
// different in at least one byte!
}
To get rid of the installed .equal()
method, call .restore()
:
require('buffer-equal-constant-time').restore();
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Licensed under the BSD 3-clause license.