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ParagonIE\ConstantTime required PHP7, going to v1.x branch

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This commit is contained in:
Mikael Nordfeldth 2016-06-24 14:49:52 +02:00
parent 39e8c13afb
commit da365be5a2
12 changed files with 167 additions and 125 deletions
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57
extlib/ParagonIE/ConstantTime/Base32.php
View File

@ -1,5 +1,4 @@
<?php
declare(strict_types=1);
namespace ParagonIE\ConstantTime;
/**
@ -39,9 +38,9 @@ abstract class Base32 implements EncoderInterface
* @param string $src
* @return string
*/
public static function decode(string $src, bool $strictPadding = false): string
public static function decode($src)
{
return static::doDecode($src, false, $strictPadding);
return static::doDecode($src, false);
}
/**
@ -50,9 +49,9 @@ abstract class Base32 implements EncoderInterface
* @param string $src
* @return string
*/
public static function decodeUpper(string $src, bool $strictPadding = false): string
public static function decodeUpper($src)
{
return static::doDecode($src, true, $strictPadding);
return static::doDecode($src, true);
}
/**
@ -61,7 +60,7 @@ abstract class Base32 implements EncoderInterface
* @param string $src
* @return string
*/
public static function encode(string $src): string
public static function encode($src)
{
return static::doEncode($src, false);
}
@ -72,7 +71,7 @@ abstract class Base32 implements EncoderInterface
* @param string $src
* @return string
*/
public static function encodeUpper(string $src): string
public static function encodeUpper($src)
{
return static::doEncode($src, true);
}
@ -84,7 +83,7 @@ abstract class Base32 implements EncoderInterface
* @param int $src
* @return int
*/
protected static function decode5Bits(int $src): int
protected static function decode5Bits($src)
{
$ret = -1;
@ -106,7 +105,7 @@ abstract class Base32 implements EncoderInterface
* @param int $src
* @return int
*/
protected static function decode5BitsUpper(int $src): int
protected static function decode5BitsUpper($src)
{
$ret = -1;
@ -126,7 +125,7 @@ abstract class Base32 implements EncoderInterface
* @param $src
* @return string
*/
protected static function encode5Bits(int $src): string
protected static function encode5Bits($src)
{
$diff = 0x61;
@ -145,7 +144,7 @@ abstract class Base32 implements EncoderInterface
* @param $src
* @return string
*/
protected static function encode5BitsUpper(int $src): string
protected static function encode5BitsUpper($src)
{
$diff = 0x41;
@ -159,12 +158,11 @@ abstract class Base32 implements EncoderInterface
/**
* Base32 decoding
*
* @param string $src
* @param $src
* @param bool $upper
* @param bool $strictPadding
* @return string
*/
protected static function doDecode(string $src, bool $upper = false, bool $strictPadding = false): string
protected static function doDecode($src, $upper = false)
{
// We do this to reduce code duplication:
$method = $upper
@ -176,24 +174,19 @@ abstract class Base32 implements EncoderInterface
if ($srcLen === 0) {
return '';
}
if ($strictPadding) {
if (($srcLen & 7) === 0) {
for ($j = 0; $j < 7; ++$j) {
if ($src[$srcLen - 1] === '=') {
$srcLen--;
} else {
break;
}
if (($srcLen & 7) === 0) {
for ($j = 0; $j < 7; ++$j) {
if ($src[$srcLen - 1] === '=') {
$srcLen--;
} else {
break;
}
}
if (($srcLen & 7) === 1) {
throw new \RangeException(
'Incorrect padding'
);
}
} else {
$src = \rtrim($src, '=');
$srcLen = Binary::safeStrlen($src);
}
if (($srcLen & 7) === 1) {
throw new \RangeException(
'Incorrect padding'
);
}
$err = 0;
@ -321,7 +314,7 @@ abstract class Base32 implements EncoderInterface
* @param bool $upper
* @return string
*/
protected static function doEncode(string $src, bool $upper = false): string
protected static function doEncode($src, $upper = false)
{
// We do this to reduce code duplication:
$method = $upper
@ -393,4 +386,4 @@ abstract class Base32 implements EncoderInterface
}
return $dest;
}
}
}

9
extlib/ParagonIE/ConstantTime/Base32Hex.php
View File

@ -1,5 +1,4 @@
<?php
declare(strict_types=1);
namespace ParagonIE\ConstantTime;
/**
@ -40,7 +39,7 @@ abstract class Base32Hex extends Base32
* @param int $src
* @return int
*/
protected static function decode5Bits(int $src): int
protected static function decode5Bits($src)
{
$ret = -1;
@ -60,7 +59,7 @@ abstract class Base32Hex extends Base32
* @param int $src
* @return int
*/
protected static function decode5BitsUpper(int $src): int
protected static function decode5BitsUpper($src)
{
$ret = -1;
@ -80,7 +79,7 @@ abstract class Base32Hex extends Base32
* @param int $src
* @return string
*/
protected static function encode5Bits(int $src): string
protected static function encode5Bits($src)
{
$src += 0x30;
@ -99,7 +98,7 @@ abstract class Base32Hex extends Base32
* @param int $src
* @return string
*/
protected static function encode5BitsUpper(int $src): string
protected static function encode5BitsUpper($src)
{
$src += 0x30;

19
extlib/ParagonIE/ConstantTime/Base64.php
View File

@ -1,5 +1,4 @@
<?php
declare(strict_types=1);
namespace ParagonIE\ConstantTime;
/**
@ -41,7 +40,7 @@ abstract class Base64 implements EncoderInterface
* @param string $src
* @return string
*/
public static function encode(string $src): string
public static function encode($src)
{
$dest = '';
$srcLen = Binary::safeStrlen($src);
@ -83,18 +82,16 @@ abstract class Base64 implements EncoderInterface
* Base64 character set "./[A-Z][a-z][0-9]"
*
* @param string $src
* @param bool $strictPadding
* @return string|bool
* @throws \RangeException
*/
public static function decode(string $src, bool $strictPadding = false): string
public static function decode($src, $strictPadding = false)
{
// Remove padding
$srcLen = Binary::safeStrlen($src);
if ($srcLen === 0) {
return '';
}
if ($strictPadding) {
if (($srcLen & 3) === 0) {
if ($src[$srcLen - 1] === '=') {
@ -109,11 +106,6 @@ abstract class Base64 implements EncoderInterface
'Incorrect padding'
);
}
if ($src[$srcLen - 1] === '=') {
throw new \RangeException(
'Incorrect padding'
);
}
} else {
$src = \rtrim($src, '=');
$srcLen = Binary::safeStrlen($src);
@ -141,7 +133,6 @@ abstract class Base64 implements EncoderInterface
if ($i < $srcLen) {
$chunk = \unpack('C*', Binary::safeSubstr($src, $i, $srcLen - $i));
$c0 = static::decode6Bits($chunk[1]);
if ($i + 2 < $srcLen) {
$c1 = static::decode6Bits($chunk[2]);
$c2 = static::decode6Bits($chunk[3]);
@ -151,7 +142,7 @@ abstract class Base64 implements EncoderInterface
((($c1 << 4) | ($c2 >> 2)) & 0xff)
);
$err |= ($c0 | $c1 | $c2) >> 8;
} elseif ($i + 1 < $srcLen) {
} elseif($i + 1 < $srcLen) {
$c1 = static::decode6Bits($chunk[2]);
$dest .= \pack(
'C',
@ -179,7 +170,7 @@ abstract class Base64 implements EncoderInterface
* @param int $src
* @return int
*/
protected static function decode6Bits(int $src): int
protected static function decode6Bits($src)
{
$ret = -1;
@ -208,7 +199,7 @@ abstract class Base64 implements EncoderInterface
* @param int $src
* @return string
*/
protected static function encode6Bits(int $src): string
protected static function encode6Bits($src)
{
$diff = 0x41;

5
extlib/ParagonIE/ConstantTime/Base64DotSlash.php
View File

@ -1,5 +1,4 @@
<?php
declare(strict_types=1);
namespace ParagonIE\ConstantTime;
/**
@ -44,7 +43,7 @@ abstract class Base64DotSlash extends Base64
* @param int $src
* @return int
*/
protected static function decode6Bits(int $src): int
protected static function decode6Bits($src)
{
$ret = -1;
@ -70,7 +69,7 @@ abstract class Base64DotSlash extends Base64
* @param int $src
* @return string
*/
protected static function encode6Bits(int $src): string
protected static function encode6Bits($src)
{
$src += 0x2e;

5
extlib/ParagonIE/ConstantTime/Base64DotSlashOrdered.php
View File

@ -1,5 +1,4 @@
<?php
declare(strict_types=1);
namespace ParagonIE\ConstantTime;
/**
@ -44,7 +43,7 @@ abstract class Base64DotSlashOrdered extends Base64
* @param int $src
* @return int
*/
protected static function decode6Bits(int $src): int
protected static function decode6Bits($src)
{
$ret = -1;
@ -67,7 +66,7 @@ abstract class Base64DotSlashOrdered extends Base64
* @param int $src
* @return string
*/
protected static function encode6Bits(int $src): string
protected static function encode6Bits($src)
{
$src += 0x2e;

5
extlib/ParagonIE/ConstantTime/Base64UrlSafe.php
View File

@ -1,5 +1,4 @@
<?php
declare(strict_types=1);
namespace ParagonIE\ConstantTime;
/**
@ -45,7 +44,7 @@ abstract class Base64UrlSafe extends Base64
* @param int $src
* @return int
*/
protected static function decode6Bits(int $src): int
protected static function decode6Bits($src)
{
$ret = -1;
@ -74,7 +73,7 @@ abstract class Base64UrlSafe extends Base64
* @param int $src
* @return string
*/
protected static function encode6Bits(int $src): string
protected static function encode6Bits($src)
{
$diff = 0x41;

9
extlib/ParagonIE/ConstantTime/Binary.php
View File

@ -1,5 +1,4 @@
<?php
declare(strict_types=1);
namespace ParagonIE\ConstantTime;
/**
@ -43,7 +42,7 @@ abstract class Binary
* @param string $str
* @return int
*/
public static function safeStrlen(string $str): int
public static function safeStrlen($str)
{
if (\function_exists('mb_strlen')) {
return \mb_strlen($str, '8bit');
@ -65,10 +64,10 @@ abstract class Binary
* @throws \TypeError
*/
public static function safeSubstr(
string $str,
int $start = 0,
$str,
$start = 0,
$length = null
): string {
) {
if (\function_exists('mb_substr')) {
// mb_substr($str, 0, NULL, '8bit') returns an empty string on PHP
// 5.3, so we have to find the length ourselves.

10
extlib/ParagonIE/ConstantTime/EncoderInterface.php
View File

@ -1,5 +1,4 @@
<?php
declare(strict_types=1);
namespace ParagonIE\ConstantTime;
/**
@ -35,18 +34,17 @@ interface EncoderInterface
* Convert a binary string into a hexadecimal string without cache-timing
* leaks
*
* @param string $binString (raw binary)
* @param string $bin_string (raw binary)
* @return string
*/
public static function encode(string $binString): string;
public static function encode($bin_string);
/**
* Convert a binary string into a hexadecimal string without cache-timing
* leaks
*
* @param string $encodedString
* @param bool $strictPadding Error on invalid padding
* @param string $encoded_string
* @return string (raw binary)
*/
public static function decode(string $encodedString, bool $strictPadding = false): string;
public static function decode($encoded_string);
}

45
extlib/ParagonIE/ConstantTime/Encoding.php
View File

@ -1,5 +1,4 @@
<?php
declare(strict_types=1);
namespace ParagonIE\ConstantTime;
/**
@ -37,7 +36,7 @@ abstract class Encoding
* @param $str
* @return string
*/
public static function base32Encode(string $str): string
public static function base32Encode($str)
{
return Base32::encode($str);
}
@ -48,7 +47,7 @@ abstract class Encoding
* @param $str
* @return string
*/
public static function base32EncodeUpper(string $str): string
public static function base32EncodeUpper($str)
{
return Base32::encodeUpper($str);
}
@ -59,7 +58,7 @@ abstract class Encoding
* @param $str
* @return string
*/
public static function base32Decode(string $str): string
public static function base32Decode($str)
{
return Base32::decode($str);
}
@ -70,7 +69,7 @@ abstract class Encoding
* @param $str
* @return string
*/
public static function base32DecodeUpper(string $str): string
public static function base32DecodeUpper($str)
{
return Base32::decodeUpper($str);
}
@ -81,7 +80,7 @@ abstract class Encoding
* @param $str
* @return string
*/
public static function base32HexEncode(string $str): string
public static function base32HexEncode($str)
{
return Base32Hex::encode($str);
}
@ -93,7 +92,7 @@ abstract class Encoding
* @param $str
* @return string
*/
public static function base32HexEncodeUpper(string $str): string
public static function base32HexEncodeUpper($str)
{
return Base32Hex::encodeUpper($str);
}
@ -104,7 +103,7 @@ abstract class Encoding
* @param $str
* @return string
*/
public static function base32HexDecode(string $str): string
public static function base32HexDecode($str)
{
return Base32Hex::decode($str);
}
@ -115,7 +114,7 @@ abstract class Encoding
* @param $str
* @return string
*/
public static function base32HexDecodeUpper(string $str): string
public static function base32HexDecodeUpper($str)
{
return Base32Hex::decodeUpper($str);
}
@ -126,7 +125,7 @@ abstract class Encoding
* @param $str
* @return string
*/
public static function base64Encode(string $str): string
public static function base64Encode($str)
{
return Base64::encode($str);
}
@ -137,7 +136,7 @@ abstract class Encoding
* @param $str
* @return string
*/
public static function base64Decode(string $str): string
public static function base64Decode($str)
{
return Base64::decode($str);
}
@ -149,9 +148,9 @@ abstract class Encoding
* @param $src
* @return string
*/
public static function base64EncodeDotSlash(string $str): string
public static function base64EncodeDotSlash($src)
{
return Base64DotSlash::encode($str);
return Base64DotSlash::encode($src);
}
/**
@ -163,9 +162,9 @@ abstract class Encoding
* @return bool|string
* @throws \RangeException
*/
public static function base64DecodeDotSlash(string $str): string
public static function base64DecodeDotSlash($src)
{
return Base64DotSlash::decode($str);
return Base64DotSlash::decode($src);
}
/**
@ -175,9 +174,9 @@ abstract class Encoding
* @param $src
* @return string
*/
public static function base64EncodeDotSlashOrdered(string $str): string
public static function base64EncodeDotSlashOrdered($src)
{
return Base64DotSlashOrdered::encode($str);
return Base64DotSlashOrdered::encode($src);
}
/**
@ -189,9 +188,9 @@ abstract class Encoding
* @return bool|string
* @throws \RangeException
*/
public static function base64DecodeDotSlashOrdered(string $str): string
public static function base64DecodeDotSlashOrdered($src)
{
return Base64DotSlashOrdered::decode($str);
return Base64DotSlashOrdered::decode($src);
}
/**
@ -201,7 +200,7 @@ abstract class Encoding
* @param string $bin_string (raw binary)
* @return string
*/
public static function hexEncode(string $bin_string): string
public static function hexEncode($bin_string)
{
return Hex::encode($bin_string);
}
@ -214,7 +213,7 @@ abstract class Encoding
* @return string (raw binary)
* @throws \RangeException
*/
public static function hexDecode(string $hex_string): string
public static function hexDecode($hex_string)
{
return Hex::decode($hex_string);
}
@ -226,7 +225,7 @@ abstract class Encoding
* @param string $bin_string (raw binary)
* @return string
*/
public static function hexEncodeUpper(string $bin_string): string
public static function hexEncodeUpper($bin_string)
{
return Hex::encodeUpper($bin_string);
}
@ -238,7 +237,7 @@ abstract class Encoding
* @param string $bin_string (raw binary)
* @return string
*/
public static function hexDecodeUpper(string $bin_string): string
public static function hexDecodeUpper($bin_string)
{
return Hex::decode($bin_string);
}

23
extlib/ParagonIE/ConstantTime/Hex.php
View File

@ -1,5 +1,4 @@
<?php
declare(strict_types=1);
namespace ParagonIE\ConstantTime;
/**
@ -38,7 +37,7 @@ abstract class Hex implements EncoderInterface
* @param string $bin_string (raw binary)
* @return string
*/
public static function encode(string $bin_string): string
public static function encode($bin_string)
{
$hex = '';
$len = Binary::safeStrlen($bin_string);
@ -62,7 +61,7 @@ abstract class Hex implements EncoderInterface
* @param string $bin_string (raw binary)
* @return string
*/
public static function encodeUpper(string $bin_string): string
public static function encodeUpper($bin_string)
{
$hex = '';
$len = Binary::safeStrlen($bin_string);
@ -84,29 +83,23 @@ abstract class Hex implements EncoderInterface
* leaks
*
* @param string $hex_string
* @param bool $strictPadding
* @return string (raw binary)
* @throws \RangeException
*/
public static function decode(string $hexString, bool $strictPadding = false): string
public static function decode($hex_string)
{
$hex_pos = 0;
$bin = '';
$c_acc = 0;
$hex_len = Binary::safeStrlen($hexString);
$hex_len = Binary::safeStrlen($hex_string);
$state = 0;
if (($hex_len & 1) !== 0) {
if ($strictPadding) {
throw new \RangeException(
'Expected an even number of hexadecimal characters'
);
} else {
$hexString = '0' . $hexString;
++$hex_len;
}
throw new \RangeException(
'Expected an even number of hexadecimal characters'
);
}
$chunk = \unpack('C*', $hexString);
$chunk = \unpack('C*', $hex_string);
while ($hex_pos < $hex_len) {
++$hex_pos;
$c = $chunk[$hex_pos];

31
extlib/ParagonIE/ConstantTime/RFC4648.php
View File

@ -1,5 +1,4 @@
<?php
declare(strict_types=1);
namespace ParagonIE\ConstantTime;
/**
@ -42,7 +41,7 @@ abstract class RFC4648
* @param string $str
* @return string
*/
public function base64Encode(string $str): string
public function base64Encode($str)
{
return Base64::encode($str);
}
@ -55,9 +54,9 @@ abstract class RFC4648
* @param string $str
* @return string
*/
public function base64Decode(string $str): string
public function base64Decode($str)
{
return Base64::decode($str, true);
return Base64::decode($str);
}
/**
@ -68,7 +67,7 @@ abstract class RFC4648
* @param string $str
* @return string
*/
public function base64UrlSafeEncode(string $str): string
public function base64UrlSafeEncode($str)
{
return Base64UrlSafe::encode($str);
}
@ -81,9 +80,9 @@ abstract class RFC4648
* @param string $str
* @return string
*/
public function base64UrlSafeDecode(string $str): string
public function base64UrlSafeDecode($str)
{
return Base64UrlSafe::decode($str, true);
return Base64UrlSafe::decode($str);
}
/**
@ -94,7 +93,7 @@ abstract class RFC4648
* @param string $str
* @return string
*/
public function base32Encode(string $str): string
public function base32Encode($str)
{
return Base32::encodeUpper($str);
}
@ -107,9 +106,9 @@ abstract class RFC4648
* @param string $str
* @return string
*/
public function base32Decode(string $str): string
public function base32Decode($str)
{
return Base32::decodeUpper($str, true);
return Base32::decodeUpper($str);
}
/**
@ -120,7 +119,7 @@ abstract class RFC4648
* @param string $str
* @return string
*/
public function base32HexEncode(string $str): string
public function base32HexEncode($str)
{
return Base32::encodeUpper($str);
}
@ -133,9 +132,9 @@ abstract class RFC4648
* @param string $str
* @return string
*/
public function base32HexDecode(string $str): string
public function base32HexDecode($str)
{
return Base32::decodeUpper($str, true);
return Base32::decodeUpper($str);
}
/**
@ -146,7 +145,7 @@ abstract class RFC4648
* @param string $str
* @return string
*/
public function base16Encode(string $str): string
public function base16Encode($str)
{
return Hex::encodeUpper($str);
}
@ -159,8 +158,8 @@ abstract class RFC4648
* @param string $str
* @return string
*/
public function base16Decode(string $str): string
public function base16Decode($str)
{
return Hex::decode($str, true);
return Hex::decode($str);
}
}

74
extlib/ParagonIE/README.md Normal file
View File

@ -0,0 +1,74 @@
# Constant-Time Encoding
[![Build Status](https://travis-ci.org/paragonie/constant_time_encoding.svg?branch=v1.x)](https://travis-ci.org/paragonie/constant_time_encoding)
Based on the [constant-time base64 implementation made by Steve "Sc00bz" Thomas](https://github.com/Sc00bz/ConstTimeEncoding),
this library aims to offer character encoding functions that do not leak
information about what you are encoding/decoding via processor cache
misses. Further reading on [cache-timing attacks](http://blog.ircmaxell.com/2014/11/its-all-about-time.html).
Our fork offers the following enchancements:
* `mbstring.func_overload` resistance
* Unit tests
* Composer- and Packagist-ready
* Base16 encoding
* Base32 encoding
* Uses `pack()` and `unpack()` instead of `chr()` and `ord()`
## PHP Version Requirements
This library should work on any [supported version of PHP](https://secure.php.net/supported-versions.php).
It *may* work on earlier versions, but we **do not** guarantee it. If it
doesn't, we **will not** fix it to work on earlier versions of PHP.
## How to Install
```sh
composer require paragonie/constant_time_encoding
```
## How to Use
```php
use \ParagonIE\ConstantTime\Encoding;
// possibly (if applicable):
// require 'vendor/autoload.php';
$data = random_bytes(32);
echo Encoding::base64Encode($data), "\n";
echo Encoding::base32EncodeUpper($data), "\n";
echo Encoding::base32Encode($data), "\n";
echo Encoding::hexEncode($data), "\n";
echo Encoding::hexEncodeUpper($data), "\n";
```
Example output:
```
1VilPkeVqirlPifk5scbzcTTbMT2clp+Zkyv9VFFasE=
2VMKKPSHSWVCVZJ6E7SONRY3ZXCNG3GE6ZZFU7TGJSX7KUKFNLAQ====
2vmkkpshswvcvzj6e7sonry3zxcng3ge6zzfu7tgjsx7kukfnlaq====
d558a53e4795aa2ae53e27e4e6c71bcdc4d36cc4f6725a7e664caff551456ac1
D558A53E4795AA2AE53E27E4E6C71BDCC4D36CC4F6725A7E664CAFF551456AC1
```
If you only need a particular variant, you can just reference the
required class like so:
```php
use \ParagonIE\ConstantTime\Base64;
use \ParagonIE\ConstantTime\Base32;
$data = random_bytes(32);
echo Base64::encode($data), "\n";
echo Base32::encode($data), "\n";
```
Example output:
```
1VilPkeVqirlPifk5scbzcTTbMT2clp+Zkyv9VFFasE=
2vmkkpshswvcvzj6e7sonry3zxcng3ge6zzfu7tgjsx7kukfnlaq====
```