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-99
@@ -1,99 +0,0 @@
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var Buffer = require('safe-buffer').Buffer
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var Transform = require('stream').Transform
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var StringDecoder = require('string_decoder').StringDecoder
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var inherits = require('inherits')
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function CipherBase (hashMode) {
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Transform.call(this)
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this.hashMode = typeof hashMode === 'string'
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if (this.hashMode) {
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this[hashMode] = this._finalOrDigest
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} else {
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this.final = this._finalOrDigest
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}
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if (this._final) {
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this.__final = this._final
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this._final = null
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}
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this._decoder = null
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this._encoding = null
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}
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inherits(CipherBase, Transform)
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CipherBase.prototype.update = function (data, inputEnc, outputEnc) {
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if (typeof data === 'string') {
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data = Buffer.from(data, inputEnc)
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}
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var outData = this._update(data)
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if (this.hashMode) return this
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if (outputEnc) {
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outData = this._toString(outData, outputEnc)
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}
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return outData
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}
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CipherBase.prototype.setAutoPadding = function () {}
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CipherBase.prototype.getAuthTag = function () {
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throw new Error('trying to get auth tag in unsupported state')
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}
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CipherBase.prototype.setAuthTag = function () {
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throw new Error('trying to set auth tag in unsupported state')
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}
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CipherBase.prototype.setAAD = function () {
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throw new Error('trying to set aad in unsupported state')
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}
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CipherBase.prototype._transform = function (data, _, next) {
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var err
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try {
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if (this.hashMode) {
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this._update(data)
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} else {
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this.push(this._update(data))
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}
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} catch (e) {
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err = e
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} finally {
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next(err)
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}
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}
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CipherBase.prototype._flush = function (done) {
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var err
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try {
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this.push(this.__final())
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} catch (e) {
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err = e
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}
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done(err)
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}
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CipherBase.prototype._finalOrDigest = function (outputEnc) {
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var outData = this.__final() || Buffer.alloc(0)
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if (outputEnc) {
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outData = this._toString(outData, outputEnc, true)
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}
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return outData
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}
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CipherBase.prototype._toString = function (value, enc, fin) {
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if (!this._decoder) {
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this._decoder = new StringDecoder(enc)
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this._encoding = enc
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}
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if (this._encoding !== enc) throw new Error('can\'t switch encodings')
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var out = this._decoder.write(value)
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if (fin) {
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out += this._decoder.end()
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}
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return out
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}
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module.exports = CipherBase
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-36
@@ -1,36 +0,0 @@
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{
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"name": "cipher-base",
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"version": "1.0.4",
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"description": "abstract base class for crypto-streams",
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"main": "index.js",
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"scripts": {
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"test": "node test.js | tspec"
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},
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"repository": {
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"type": "git",
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"url": "git+https://github.com/crypto-browserify/cipher-base.git"
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},
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"keywords": [
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"cipher",
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"stream"
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],
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"author": "Calvin Metcalf <calvin.metcalf@gmail.com>",
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"license": "MIT",
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"bugs": {
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"url": "https://github.com/crypto-browserify/cipher-base/issues"
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},
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"homepage": "https://github.com/crypto-browserify/cipher-base#readme",
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"dependencies": {
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"inherits": "^2.0.1",
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"safe-buffer": "^5.0.1"
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},
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"devDependencies": {
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"standard": "^10.0.2",
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"tap-spec": "^4.1.0",
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"tape": "^4.2.0"
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}
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,"_resolved": "https://registry.npmjs.org/cipher-base/-/cipher-base-1.0.4.tgz"
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,"_integrity": "sha512-Kkht5ye6ZGmwv40uUDZztayT2ThLQGfnj/T71N/XzeZeo3nf8foyW7zGTsPYkEya3m5f3cAypH+qe7YOrM1U2Q=="
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,"_from": "cipher-base@^1.0.0"
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}
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-111
@@ -1,111 +0,0 @@
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var Buffer = require('safe-buffer').Buffer
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var CipherBase = require('./')
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var test = require('tape')
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var inherits = require('inherits')
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test('basic version', function (t) {
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function Cipher () {
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CipherBase.call(this)
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}
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inherits(Cipher, CipherBase)
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Cipher.prototype._update = function (input) {
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t.ok(Buffer.isBuffer(input))
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return input
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}
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Cipher.prototype._final = function () {
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// noop
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}
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var cipher = new Cipher()
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var utf8 = 'abc123abcd'
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var update = cipher.update(utf8, 'utf8', 'base64') + cipher.final('base64')
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var string = (Buffer.from(update, 'base64')).toString()
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t.equals(utf8, string)
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t.end()
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})
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test('hash mode', function (t) {
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function Cipher () {
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CipherBase.call(this, 'finalName')
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this._cache = []
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}
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inherits(Cipher, CipherBase)
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Cipher.prototype._update = function (input) {
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t.ok(Buffer.isBuffer(input))
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this._cache.push(input)
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}
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Cipher.prototype._final = function () {
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return Buffer.concat(this._cache)
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}
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var cipher = new Cipher()
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var utf8 = 'abc123abcd'
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var update = cipher.update(utf8, 'utf8').finalName('base64')
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var string = (Buffer.from(update, 'base64')).toString()
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t.equals(utf8, string)
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t.end()
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})
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test('hash mode as stream', function (t) {
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function Cipher () {
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CipherBase.call(this, 'finalName')
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this._cache = []
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}
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inherits(Cipher, CipherBase)
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Cipher.prototype._update = function (input) {
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t.ok(Buffer.isBuffer(input))
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this._cache.push(input)
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}
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Cipher.prototype._final = function () {
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return Buffer.concat(this._cache)
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}
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var cipher = new Cipher()
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cipher.on('error', function (e) {
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t.notOk(e)
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})
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var utf8 = 'abc123abcd'
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cipher.end(utf8, 'utf8')
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var update = cipher.read().toString('base64')
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var string = (Buffer.from(update, 'base64')).toString()
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t.equals(utf8, string)
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t.end()
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})
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test('encodings', function (t) {
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inherits(Cipher, CipherBase)
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function Cipher () {
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CipherBase.call(this)
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}
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Cipher.prototype._update = function (input) {
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return input
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}
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Cipher.prototype._final = function () {
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// noop
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}
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t.test('mix and match encoding', function (t) {
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t.plan(2)
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var cipher = new Cipher()
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cipher.update('foo', 'utf8', 'utf8')
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t.throws(function () {
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cipher.update('foo', 'utf8', 'base64')
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})
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cipher = new Cipher()
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cipher.update('foo', 'utf8', 'base64')
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t.doesNotThrow(function () {
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cipher.update('foo', 'utf8')
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cipher.final('base64')
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})
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})
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t.test('handle long uft8 plaintexts', function (t) {
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t.plan(1)
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var txt = 'ふっかつ あきる すぶり はやい つける まゆげ たんさん みんぞく ねほりはほり せまい たいまつばな ひはん'
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var cipher = new Cipher()
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var decipher = new Cipher()
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var enc = decipher.update(cipher.update(txt, 'utf8', 'base64'), 'base64', 'utf8')
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enc += decipher.update(cipher.final('base64'), 'base64', 'utf8')
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enc += decipher.final('utf8')
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t.equals(txt, enc)
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})
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})
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