sha.js
Streamable SHA1 hash in pure javascript.
Example
var createHash = require('sha.js')
var sha1 = createHash('sha1')
var sha256 = createHash('sha256')
var sha512 = createHash'sha512')
var h = sha1.update('abc', 'utf8').digest('hex')
console.log(h)
supported hashes
sha.js currently implements:
Note
Note, this doesn't actually implement a stream, but wrapping this in a stream is trivial.
but is does update incrementally, so you can hash things larger than ram, and also, since it reuses
the typedarrays, it uses a constant amount of memory (except when using base64 or utf8 encoding,
see code comments)
Acknowledgements
This work is derived from Paul Johnston's ["A JavaScript implementation of the Secure Hash Algorithm"]
(http://pajhome.org.uk/crypt/md5/sha1.html)
License
MIT