huanggang 03a863fb53 add node_modules		%!s(int64=7) %!d(string=hai) anos
..
test	03a863fb53 add node_modules	%!s(int64=7) %!d(string=hai) anos
.npmignore	03a863fb53 add node_modules	%!s(int64=7) %!d(string=hai) anos
.travis.yml	03a863fb53 add node_modules	%!s(int64=7) %!d(string=hai) anos
LICENSE	03a863fb53 add node_modules	%!s(int64=7) %!d(string=hai) anos
README.md	03a863fb53 add node_modules	%!s(int64=7) %!d(string=hai) anos
bin.js	03a863fb53 add node_modules	%!s(int64=7) %!d(string=hai) anos
hash.js	03a863fb53 add node_modules	%!s(int64=7) %!d(string=hai) anos
hexpp.js	03a863fb53 add node_modules	%!s(int64=7) %!d(string=hai) anos
index.js	03a863fb53 add node_modules	%!s(int64=7) %!d(string=hai) anos
package.json	03a863fb53 add node_modules	%!s(int64=7) %!d(string=hai) anos
sha.js	03a863fb53 add node_modules	%!s(int64=7) %!d(string=hai) anos
sha1.js	03a863fb53 add node_modules	%!s(int64=7) %!d(string=hai) anos
sha224.js	03a863fb53 add node_modules	%!s(int64=7) %!d(string=hai) anos
sha256.js	03a863fb53 add node_modules	%!s(int64=7) %!d(string=hai) anos
sha384.js	03a863fb53 add node_modules	%!s(int64=7) %!d(string=hai) anos
sha512.js	03a863fb53 add node_modules	%!s(int64=7) %!d(string=hai) anos

sha.js

Streamable SHA hashes in pure javascript.

Example

var createHash = require('sha.js')

var sha256 = createHash('sha256')
var sha512 = createHash('sha512')

var h = sha256.update('abc', 'utf8').digest('hex')
console.log(h) //ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad

//LEGACY, do not use in new systems:
var sha0 = createHash('sha')
var sha1 = createHash('sha1')

supported hashes

sha.js currently implements:

sha256
sha512
sha1 (legacy, no not use in new systems)
sha (legacy, no not use in new systems)

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"

License

MIT