sha384-wasm
Usage
const sha384 = require('sha384-wasm')
if (!Sha384.SUPPORTED) {
console.log('WebAssembly not supported by your runtime')
}
var hash = sha384()
.update('hello')
.update(' ')
.update(Buffer.from('world'))
.digest('hex')
console.log('Sha384 hash of "hello world" is ', hash)
// fdbd8e75a67f29f701a4e040385e2e23986303ea10239211af907fcbb83578b3e417cb71ce646efd0819dd8c088de1bd
API
const hash = sha384()
Create a new hash instance.
hash.update(data, [enc])
Update the hash with a new piece of data. data
may be passed as a buffer, uint8array or a string. If data
is passed as a string, then it will be interpreted as a utf8
string unless enc
specifies an encoding.
hash.digest([enc])
Digest the hash. If enc
is specified, then the digest shall be returned as an enc
encoded string. Otherwise a buffer is returned.
var promise = sha384.ready([cb])
Option to wait for the WASM code to load. Returns the WebAssembly instance promise as well for convenience.
Contributing
The bulk of this module is implemented in WebAssembly in the sha384.wat file. The format of this file is S-Expressions that can be compiled to their binary WASM representation by doing
wat2wasm sha384.wat -o sha384.wasm
To build the thin Javascript wrapper for the WASM module use wat2js
:
# also available as `npm run compile`
wat2js sha384.wat -o sha384.js
If you do not have wat2wasm
installed follow the instructions here, https://github.com/WebAssembly/wabt
License
MIT