Class: Crypt_CBC

Source Location: /Crypt_CBC-1.0.0/CBC.php

Class Overview

PEAR
   |
   --Crypt_CBC

Class to emulate Perl's Crypt::CBC module

Author(s):

Colin Viebrock <colin at easydns.com>

Version:

$Revision: 1.7 $

Inherited Variables

Inherited Methods

Class Details

[line 49]
Class to emulate Perl's Crypt::CBC module

Blowfish support that is compatable with Perl requires libmcrypt >= 2.4.9. If you are using libmcrypt <= 2.4.8, Blowfish encryption will work, but your data will not be readable by Perl scripts. It will work "internally" .. i.e. this class will be able to encode/decode the data.

Blowfish support that is compatable with PHP applications using libmcrypt <= 2.4.8 requies you to use 'BLOWFISH-COMPAT' when specifying the cipher. Check the libmcrypt docs when in doubt.

This class no longer works with libmcrypt 2.2.x versions.

NOTE: the cipher names in this class may change depending on how the author of libcrypt decides to name things internally.

Author: Colin Viebrock <colin@easydns.com>
Version: $Revision: 1.7 $
Access: public

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Class Variables

$blocksize =

[line 83]

blocksize of cipher

Type:

string

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$cipher =

[line 65]

used cipher

Type:

string

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$deinit_function =

[line 77]

crypt deinit function, for backwards compatability

Type:

string

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$header_spec = 'RandomIV'

[line 108]

header

Type:

string

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$keyhash =

[line 95]

mangled key

Type:

string

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$keysize =

[line 89]

keysize of cipher

Type:

int

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$known_ciphers = array (
        'DES'               => MCRYPT_DES,
        'BLOWFISH'          => MCRYPT_BLOWFISH,
        'BLOWFISH-COMPAT'   => MCRYPT_BLOWFISH_COMPAT,
    )

[line 55]

supported procedures

Type:

array

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$rand_source = MCRYPT_RAND

[line 102]

source type of the initialization vector for creation

possible types are MCRYPT_RAND or MCRYPT_DEV_URANDOM or MCRYPT_DEV_RANDOM

Type:

int

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$TD =

[line 71]

crypt resource, for 2.4.x

Type:

string

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Method Detail

Crypt_CBC (Constructor) [line 136]

$return Crypt_CBC(
$key
$key, [$cipher
$cipher = 'DES'])

Constructor $key is the key to use for encryption. $cipher can be DES, BLOWFISH or BLOWFISH-COMPAT

Return: either a PEAR error or true
Access: public

Parameters:

$key	`$key`	—	encryption key
$cipher	`$cipher`	—	which algorithm to use, defaults to DES

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_Crypt_CBC (Destructor) [line 201]

void _Crypt_CBC(
)

Destructor

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decrypt [line 269]

$clear decrypt(
$crypt
$crypt)

Decryption method

Return: plaintext, or PEAR error
Access: public

Parameters:

$crypt $crypt — encrypted text

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encrypt [line 218]

$crypt encrypt(
$clear
$clear)

Encryption method

Return: encrypted text, or PEAR error
Access: public

Parameters:

$clear $clear — plaintext

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Class: Crypt_CBC

Class Overview

Author(s):

Version:

Variables

Methods

Inherited Variables

Inherited Methods

Class Details

Class Variables

$blocksize =

$cipher =

$deinit_function =

$header_spec = 'RandomIV'

$keyhash =

$keysize =

$known_ciphers = array ( 'DES' => MCRYPT_DES, 'BLOWFISH' => MCRYPT_BLOWFISH, 'BLOWFISH-COMPAT' => MCRYPT_BLOWFISH_COMPAT, )

$rand_source = MCRYPT_RAND

$TD =

Method Detail

Crypt_CBC (Constructor) [line 136]

Parameters:

_Crypt_CBC (Destructor) [line 201]

decrypt [line 269]

Parameters:

encrypt [line 218]

Parameters:

$known_ciphers = array (
'DES' => MCRYPT_DES,
'BLOWFISH' => MCRYPT_BLOWFISH,
'BLOWFISH-COMPAT' => MCRYPT_BLOWFISH_COMPAT,
)