/usr/lib/nodejs/create-hash/browser.js is in node-create-hash 1.1.3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 45 46 47 48 49 50 51 52 | 'use strict'
var inherits = require('inherits')
var md5 = require('./md5')
var RIPEMD160 = require('ripemd160')
var sha = require('sha.js')
var Base = require('cipher-base')
function HashNoConstructor (hash) {
Base.call(this, 'digest')
this._hash = hash
this.buffers = []
}
inherits(HashNoConstructor, Base)
HashNoConstructor.prototype._update = function (data) {
this.buffers.push(data)
}
HashNoConstructor.prototype._final = function () {
var buf = Buffer.concat(this.buffers)
var r = this._hash(buf)
this.buffers = null
return r
}
function Hash (hash) {
Base.call(this, 'digest')
this._hash = hash
}
inherits(Hash, Base)
Hash.prototype._update = function (data) {
this._hash.update(data)
}
Hash.prototype._final = function () {
return this._hash.digest()
}
module.exports = function createHash (alg) {
alg = alg.toLowerCase()
if (alg === 'md5') return new HashNoConstructor(md5)
if (alg === 'rmd160' || alg === 'ripemd160') return new Hash(new RIPEMD160())
return new Hash(sha(alg))
}
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