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move more common elements to StreamCipher class

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This commit is contained in:
terrafrost 2020-05-12 22:03:06 -05:00
parent 995bf77315
commit f780640ecf
3 changed files with 22 additions and 45 deletions
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22
phpseclib/Crypt/Common/StreamCipher.php
View File

@ -24,6 +24,28 @@ namespace phpseclib3\Crypt\Common;
*/ */
abstract class StreamCipher extends SymmetricKey abstract class StreamCipher extends SymmetricKey
{ {
/**
* Block Length of the cipher
*
* Stream ciphers do not have a block size
*
* @see \phpseclib3\Crypt\Common\SymmetricKey::block_size
* @var int
* @access private
*/
protected $block_size = 0;
/**
* Default Constructor.
*
* @see \phpseclib3\Crypt\Common\SymmetricKey::__construct()
* @return \phpseclib3\Crypt\Common\StreamCipher
*/
public function __construct()
{
parent::__construct('stream');
}
/** /**
* Stream ciphers not use an IV * Stream ciphers not use an IV
* *

24
phpseclib/Crypt/RC4.php
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@ -63,18 +63,6 @@ class RC4 extends StreamCipher
const DECRYPT = 1; const DECRYPT = 1;
/**#@-*/ /**#@-*/
/**
* Block Length of the cipher
*
* RC4 is a stream cipher
* so we the block_size to 0
*
* @see \phpseclib3\Crypt\Common\SymmetricKey::block_size
* @var int
* @access private
*/
protected $block_size = 0;
/** /**
* Key Length (in bytes) * Key Length (in bytes)
* *
@ -111,18 +99,6 @@ class RC4 extends StreamCipher
*/ */
private $stream; private $stream;
/**
* Default Constructor.
*
* @see \phpseclib3\Crypt\Common\SymmetricKey::__construct()
* @return \phpseclib3\Crypt\RC4
* @access public
*/
public function __construct()
{
parent::__construct('stream');
}
/** /**
* Test for engine validity * Test for engine validity
* *

21
phpseclib/Crypt/Salsa20.php
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@ -50,16 +50,6 @@ class Salsa20 extends StreamCipher
*/ */
protected $key_length = 32; // = 256 bits protected $key_length = 32; // = 256 bits
/**
* Block Length of the cipher
*
* Salsa20 is a stream cipher
* so we the block_size to 0
*
* @var int
*/
protected $block_size = 0;
/**#@+ /**#@+
* @access private * @access private
* @see \phpseclib3\Crypt\Salsa20::crypt() * @see \phpseclib3\Crypt\Salsa20::crypt()
@ -96,17 +86,6 @@ class Salsa20 extends StreamCipher
*/ */
protected $usingGeneratedPoly1305Key = false; protected $usingGeneratedPoly1305Key = false;
/**
* Default Constructor.
*
* @see \phpseclib3\Crypt\Common\SymmetricKey::__construct()
* @return \phpseclib3\Crypt\Salsa20
*/
public function __construct()
{
parent::__construct('stream');
}
/** /**
* Salsa20 uses a nonce * Salsa20 uses a nonce
* *