37 lines
1.1 KiB
JavaScript
37 lines
1.1 KiB
JavaScript
/**
|
|
* Browser Bitmessage crypto implementation.
|
|
*
|
|
* Documentation: <http://www.w3.org/TR/WebCryptoAPI/>
|
|
* Browsers support: <http://caniuse.com/#feat=cryptography>
|
|
* Blink implementation details: <https://sites.google.com/a/chromium.org/dev/blink/webcrypto>
|
|
*/
|
|
|
|
"use strict";
|
|
|
|
var assert = require("assert");
|
|
require("es6-promise").polyfill();
|
|
var ripemd160 = require("ripemd160");
|
|
|
|
// Support `webkit` prefix for Safari (not tested yet).
|
|
// TODO(Kagami): Try to support IE11.
|
|
var subtle = window.crypto.subtle || window.crypto.webkitSubtle;
|
|
assert(subtle, "WebCryptoAPI is not supported");
|
|
|
|
exports.sha512 = function(buf) {
|
|
return subtle.digest({name: "SHA-512"}, buf).then(function(arr) {
|
|
return new Buffer(new Uint8Array(arr));
|
|
});
|
|
};
|
|
|
|
exports.sha256 = function(buf) {
|
|
return subtle.digest({name: "SHA-256"}, buf).then(function(arr) {
|
|
return new Buffer(new Uint8Array(arr));
|
|
});
|
|
};
|
|
|
|
exports.ripemd160 = function(buf) {
|
|
// XXX(Kagami): No support in browsers via Web Crypto API currently,
|
|
// so use module.
|
|
return Promise.resolve(ripemd160(buf));
|
|
};
|