pax_global_header00006660000000000000000000000064131274235030014512gustar00rootroot0000000000000052 comment=bc18dc847050c34f11f7a0472ff13a76b53fedc6 cipher-base-1.0.4/000077500000000000000000000000001312742350300136765ustar00rootroot00000000000000cipher-base-1.0.4/.eslintrc000066400000000000000000000000361312742350300155210ustar00rootroot00000000000000{ "extends": ["standard"] } cipher-base-1.0.4/.gitignore000066400000000000000000000000151312742350300156620ustar00rootroot00000000000000node_modules cipher-base-1.0.4/.travis.yml000066400000000000000000000001071312742350300160050ustar00rootroot00000000000000language: node_js node_js: - "0.11" - "0.10" - "0.12" - "iojs" cipher-base-1.0.4/LICENSE000066400000000000000000000021111312742350300146760ustar00rootroot00000000000000The MIT License (MIT) Copyright (c) 2017 crypto-browserify contributors Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. cipher-base-1.0.4/README.md000066400000000000000000000013261312742350300151570ustar00rootroot00000000000000cipher-base === [![Build Status](https://travis-ci.org/crypto-browserify/cipher-base.svg)](https://travis-ci.org/crypto-browserify/cipher-base) Abstract base class to inherit from if you want to create streams implementing the same api as node crypto streams. Requires you to implement 2 methods `_final` and `_update`. `_update` takes a buffer and should return a buffer, `_final` takes no arguments and should return a buffer. The constructor takes one argument and that is a string which if present switches it into hash mode, i.e. the object you get from crypto.createHash or crypto.createSign, this switches the name of the final method to be the string you passed instead of `final` and returns `this` from update. cipher-base-1.0.4/index.js000066400000000000000000000042631312742350300153500ustar00rootroot00000000000000var Buffer = require('safe-buffer').Buffer var Transform = require('stream').Transform var StringDecoder = require('string_decoder').StringDecoder var inherits = require('inherits') function CipherBase (hashMode) { Transform.call(this) this.hashMode = typeof hashMode === 'string' if (this.hashMode) { this[hashMode] = this._finalOrDigest } else { this.final = this._finalOrDigest } if (this._final) { this.__final = this._final this._final = null } this._decoder = null this._encoding = null } inherits(CipherBase, Transform) CipherBase.prototype.update = function (data, inputEnc, outputEnc) { if (typeof data === 'string') { data = Buffer.from(data, inputEnc) } var outData = this._update(data) if (this.hashMode) return this if (outputEnc) { outData = this._toString(outData, outputEnc) } return outData } CipherBase.prototype.setAutoPadding = function () {} CipherBase.prototype.getAuthTag = function () { throw new Error('trying to get auth tag in unsupported state') } CipherBase.prototype.setAuthTag = function () { throw new Error('trying to set auth tag in unsupported state') } CipherBase.prototype.setAAD = function () { throw new Error('trying to set aad in unsupported state') } CipherBase.prototype._transform = function (data, _, next) { var err try { if (this.hashMode) { this._update(data) } else { this.push(this._update(data)) } } catch (e) { err = e } finally { next(err) } } CipherBase.prototype._flush = function (done) { var err try { this.push(this.__final()) } catch (e) { err = e } done(err) } CipherBase.prototype._finalOrDigest = function (outputEnc) { var outData = this.__final() || Buffer.alloc(0) if (outputEnc) { outData = this._toString(outData, outputEnc, true) } return outData } CipherBase.prototype._toString = function (value, enc, fin) { if (!this._decoder) { this._decoder = new StringDecoder(enc) this._encoding = enc } if (this._encoding !== enc) throw new Error('can\'t switch encodings') var out = this._decoder.write(value) if (fin) { out += this._decoder.end() } return out } module.exports = CipherBase cipher-base-1.0.4/package.json000066400000000000000000000013731312742350300161700ustar00rootroot00000000000000{ "name": "cipher-base", "version": "1.0.4", "description": "abstract base class for crypto-streams", "main": "index.js", "scripts": { "test": "node test.js | tspec" }, "repository": { "type": "git", "url": "git+https://github.com/crypto-browserify/cipher-base.git" }, "keywords": [ "cipher", "stream" ], "author": "Calvin Metcalf ", "license": "MIT", "bugs": { "url": "https://github.com/crypto-browserify/cipher-base/issues" }, "homepage": "https://github.com/crypto-browserify/cipher-base#readme", "dependencies": { "inherits": "^2.0.1", "safe-buffer": "^5.0.1" }, "devDependencies": { "standard": "^10.0.2", "tap-spec": "^4.1.0", "tape": "^4.2.0" } } cipher-base-1.0.4/test.js000066400000000000000000000057211312742350300152200ustar00rootroot00000000000000var Buffer = require('safe-buffer').Buffer var CipherBase = require('./') var test = require('tape') var inherits = require('inherits') test('basic version', function (t) { function Cipher () { CipherBase.call(this) } inherits(Cipher, CipherBase) Cipher.prototype._update = function (input) { t.ok(Buffer.isBuffer(input)) return input } Cipher.prototype._final = function () { // noop } var cipher = new Cipher() var utf8 = 'abc123abcd' var update = cipher.update(utf8, 'utf8', 'base64') + cipher.final('base64') var string = (Buffer.from(update, 'base64')).toString() t.equals(utf8, string) t.end() }) test('hash mode', function (t) { function Cipher () { CipherBase.call(this, 'finalName') this._cache = [] } inherits(Cipher, CipherBase) Cipher.prototype._update = function (input) { t.ok(Buffer.isBuffer(input)) this._cache.push(input) } Cipher.prototype._final = function () { return Buffer.concat(this._cache) } var cipher = new Cipher() var utf8 = 'abc123abcd' var update = cipher.update(utf8, 'utf8').finalName('base64') var string = (Buffer.from(update, 'base64')).toString() t.equals(utf8, string) t.end() }) test('hash mode as stream', function (t) { function Cipher () { CipherBase.call(this, 'finalName') this._cache = [] } inherits(Cipher, CipherBase) Cipher.prototype._update = function (input) { t.ok(Buffer.isBuffer(input)) this._cache.push(input) } Cipher.prototype._final = function () { return Buffer.concat(this._cache) } var cipher = new Cipher() cipher.on('error', function (e) { t.notOk(e) }) var utf8 = 'abc123abcd' cipher.end(utf8, 'utf8') var update = cipher.read().toString('base64') var string = (Buffer.from(update, 'base64')).toString() t.equals(utf8, string) t.end() }) test('encodings', function (t) { inherits(Cipher, CipherBase) function Cipher () { CipherBase.call(this) } Cipher.prototype._update = function (input) { return input } Cipher.prototype._final = function () { // noop } t.test('mix and match encoding', function (t) { t.plan(2) var cipher = new Cipher() cipher.update('foo', 'utf8', 'utf8') t.throws(function () { cipher.update('foo', 'utf8', 'base64') }) cipher = new Cipher() cipher.update('foo', 'utf8', 'base64') t.doesNotThrow(function () { cipher.update('foo', 'utf8') cipher.final('base64') }) }) t.test('handle long uft8 plaintexts', function (t) { t.plan(1) 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' var cipher = new Cipher() var decipher = new Cipher() var enc = decipher.update(cipher.update(txt, 'utf8', 'base64'), 'base64', 'utf8') enc += decipher.update(cipher.final('base64'), 'base64', 'utf8') enc += decipher.final('utf8') t.equals(txt, enc) }) })