cipher

0.7.0

A Dart library implementing cryptographic algorithms.

Readme

cipher

A Dart library for encryption and decryption. As of today, most of the classes are ports of Bouncy Castle from Java to Dart. The porting is almost always direct except for some classes that had been added to ease the use of low level data.

To make sure nothing fails, tests and benchmarks for every algorithm are provided. The expected results are taken from the Bouncy Castle Java version and also from standards, and matched against the results got from cipher.

As of the last release, the following algorithms are implemented:

Block ciphers:

Asymmetric block ciphers:

Stream ciphers:

Salsa20

Block cipher modes of operation:

CBC (Cipher Block Chaining mode)
CFB (Cipher Feedback mode)
ECB (Electronic Code Book mode)
GCTR (GOST 28147 OFB counter mode)
OFB (Output FeedBack mode)
CTR (Counter mode)

Paddings:

PKCS7

Digests:

MD2
MD4
MD5
RIPEMD-128
RIPEMD-160
RIPEMD-256
RIPEMD-320
SHA-1
SHA-224
SHA-256
SHA-3
SHA-384
SHA-512
SHA-512/t
Tiger
Whirlpool

MACs:

HMAC

Signatures:

ECDSA
RSA

Password based key derivators:

PBKDF2
scrypt

Asymmetric key generators:

ECDSA
RSA

Entropy sources (true RNGs):

URL based (can be used, for example, with random.org)
File based (can be used, for example, with /dev/random)

Secure PRNGs:

Based on block cipher in CTR mode
Based on block cipher in CTR mode with auto reseed (for forward security)

Changelog

Version 0.7.0 (2014-03-??) (Dart SDK version 1.3.0-dev.5.2)

[enh 15] Implement stream cipher benchmarks.
[enh 64] Benchmark and optimize digests.
[enh 74] Make SHA-3 usable in terms of speed.
[bug 67] Removed some unused code.
[bug 68] Fix process() method of PaddedBlockCipher.
[bug 75] Remove a registry dependency in the Scrypt algorithm.

Installing

export PUB_HOSTED_URL=https://pub.mirror.p-hatan.ir
flutter pub add cipher

pubspec.yaml

name: cipher
version: 0.7.0
author: Iván Zaera Avellón <izaera@gmail.com>
description: A Dart library implementing cryptographic algorithms.
homepage: http://izaera.github.io/cipher/
environment:
  sdk: '>=0.8.10+6 <2.0.0'
documentation: http://izaera.github.io/cipher/api/
dependencies:
  bignum: '>=0.0.5 <0.1.0'
  fixnum: '>=0.9.0 <0.10.0'
dev_dependencies:
  benchmark_harness: '>=1.0.4 <2.0.0'
  browser: '>=0.9.0 <0.10.0'
  unittest: '>=0.9.0 <0.10.0'

Version history

Version	Published	Archive	SHA-256
0.0.0	2013-10-10T20:29:20.274380Z	Download	`f6af25b92473affd2738b9a839bac51c25af8e58aba3272606e59acc8b1c08fa`
0.0.1	2013-10-10T20:30:02.259650Z	Download	`f881377258b63164f933b49063c0ef6f9a36df39c022a66dc33c5c8c342bfaae`
0.0.2	2013-10-11T20:21:29.455960Z	Download	`128f01bbf02571b6e98e1b882a7c0cf4219313b341922f7063b4820cc0334cb3`
0.1.0	2013-10-12T20:31:03.414160Z	Download	`482d96de1e4b5c39f7920a778bd05e4e86be06b10efc96bb62cd5de8ce11d6b0`
0.2.0	2013-10-13T17:43:03.442680Z	Download	`4e0d607087e7b01141624e3d5b5d8f8a2fa9b826f25d2bd7d72819acc17f0d8e`
0.3.0	2013-11-01T18:10:29.850690Z	Download	`43e12a855e0aa841d95066d2b3a50da73d1f9a196ff32507241e895b5261e354`
0.3.1	2013-11-11T20:57:32.833720Z	Download	`b282572534a195529cb98011818acaf64a2d3434e9e6130fc6f75ede9ba9c033`
0.4.0	2013-11-18T21:20:54.924380Z	Download	`b2ff9d2f8834bcad577595ce92a7c09788cc14950045865e6c772da87eedbdb1`
0.5.0	2014-01-15T15:59:52.081150Z	Download	`b96e73fcd607853d539af04b3e6a94ab086f1d076af205b622052c0203868bed`
0.5.1	2014-01-20T07:58:41.859370Z	Download	`1ba9f432cd2869d434af8be590bba36305e991e5c789199ccfddb45e95595077`
0.6.0	2014-02-24T20:58:02.563890Z	Download	`5f3977621bc6264f8ec8e5ff6bce5d7a046fbf5fedd90f5d63f5bbd0e1bea308`
0.7.0	2014-03-22T18:00:24.822430Z	Download	`1cbd576ab91fafb4fbddbf67acdd10fa609d9536a47f5a01b5c2ecda8c058826`
0.7.1	2014-05-11T18:49:34.808020Z	Download	`fb9271f1e22c6e3191edfecf23a15c0317a110223899d8f07e76da77ca5a718f`

Dependencies

bignum "\u003e=0.0.5 \u003c0.1.0"

fixnum "\u003e=0.9.0 \u003c0.10.0"