feat: README

.travis.yml

@@ -11,5 +11,5 @@ php:
 before_script:
   - composer install --dev
 script:
-  - ./vendor/bin/phpunit --coverage-text
+  - ./vendor/bin/phpunit
   - ./vendor/bin/phpcs --extensions=php --report=summary --standard=PSR2 ./src ./tests

README.md

@@ -0,0 +1,44 @@
+# PhpAes
+
+[![Build Status](https://travis-ci.org/phillipsdata/phpaes.svg?branch=master)](https://travis-ci.org/phillipsdata/phpaes)
+
+FIPS-192 compliant AES cipher. 
+
+### Supported key lengths:
+- 128 bits
+- 192 bits
+- 256 bits
+
+### Support block modes:
+
+- ECB: Electronic Code Book
+- CBC: Cipher Block Chaining
+- CFB: Cipher Feedback
+- OFB: Output Feedback
+
+### Supported padding schemes:
+
+- null byte (0x00)
+
+
+## Installation
+
+Install via composer:
+
+```sh
+composer require phpaes/phpaes
+```
+
+## Basic Usage
+
+```php
+use PhpAes\Aes;
+
+$aes = new Aes('abcdefgh01234567', 'CBC', '1234567890abcdef');
+
+$y = $aes->encrypt('hello world!');
+$x = $aes->decrypt($y);
+
+echo base64_encode($y);
+echo $x;
+```

src/Aes.php

@@ -284,9 +284,9 @@ public function decrypt($y)
 
         switch ($this->mode) {
             case 'ECB':
-                for ($i=0; $i<$ysize; $i+=16) {
-                    for ($j=0; $j<16; $j++) {
-                        if (($i+$j)<$ysize) {
+                for ($i = 0; $i < $ysize; $i += 16) {
+                    for ($j = 0; $j < 16; $j++) {
+                        if (($i+$j) < $ysize) {
                             $t[$j] = $y[$i+$j];
                         } else {
                             $t[$j] = chr(0);