check-sum

check-sum

Assert multiple checksums on a stream in parallel.

Example

var checksum = require('check-sum')
var stream = require('fs').createReadStream('package.json')

checksum(stream, {
  md5: 'asdfasdfasdf',
  sha1: 'asdfasdfasdf'
}, function (err) {
  if (err) throw err // will throw on any failed check sums
})

API

checksum(stream, hashes, callback)

stream is a Readable Stream or a filename. hashes is an object of the form algorithm: hash where hash is in hex or Buffer format.

Errors

Errors will have the following properties:

• algorithm - the algorithm that failed
• expected
• actual

License

The MIT License (MIT)

Copyright (c) 2014 Jonathan Ong [e-mail]

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.