aaac7fed
 liuqimichale
add
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
# sha.js
[](https://www.npmjs.org/package/sha.js)
[](https://travis-ci.org/crypto-browserify/sha.js)
[](https://david-dm.org/crypto-browserify/sha.js#info=dependencies)
[](https://github.com/feross/standard)
Node style `SHA` on pure JavaScript.
```js
var shajs = require('sha.js')
console.log(shajs('sha256').update('42').digest('hex'))
// => 73475cb40a568e8da8a045ced110137e159f890ac4da883b6b17dc651b3a8049
console.log(new shajs.sha256().update('42').digest('hex'))
// => 73475cb40a568e8da8a045ced110137e159f890ac4da883b6b17dc651b3a8049
var sha256stream = shajs('sha256')
sha256stream.end('42')
console.log(sha256stream.read().toString('hex'))
// => 73475cb40a568e8da8a045ced110137e159f890ac4da883b6b17dc651b3a8049
```
## supported hashes
`sha.js` currently implements:
- SHA (SHA-0) -- **legacy, do not use in new systems**
- SHA-1 -- **legacy, do not use in new systems**
- SHA-224
- SHA-256
- SHA-384
- SHA-512
## Not an actual stream
Note, this doesn't actually implement a stream, but wrapping this in a stream is trivial.
It does update incrementally, so you can hash things larger than RAM, as 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](LICENSE)
|
