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Fonctions membres publiques statiques | Fonctions membres protégées statiques | Attributs protégés statiques | Fonctions membres privées statiques | Attributs privés statiques
Référence de la classe AKEncryptionAES

Fonctions membres publiques statiques

static AESEncryptCtr ($plaintext, $password, $nBits)
 
static AESDecryptCtr ($ciphertext, $password, $nBits)
 
static AESDecryptCBC ($ciphertext, $password)
 
static createTheWrongIV ($password)
 
static expandKey ($password)
 
static getAdapter ()
 
static getPbkdf2Algorithm ()
 
static setPbkdf2Algorithm ($pbkdf2Algorithm)
 
static getPbkdf2Iterations ()
 
static setPbkdf2Iterations ($pbkdf2Iterations)
 
static getPbkdf2UseStaticSalt ()
 
static setPbkdf2UseStaticSalt ($pbkdf2UseStaticSalt)
 
static getPbkdf2StaticSalt ()
 
static setPbkdf2StaticSalt ($pbkdf2StaticSalt)
 
static getKeyDerivationParameters ()
 
static pbkdf2 ($password, $salt, $algorithm='sha1', $count=1000, $key_length=16)
 

Fonctions membres protégées statiques

static Cipher ($input, $w)
 
static AddRoundKey ($state, $w, $rnd, $Nb)
 
static SubBytes ($s, $Nb)
 
static ShiftRows ($s, $Nb)
 
static MixColumns ($s)
 
static KeyExpansion ($key)
 
static SubWord ($w)
 
static RotWord ($w)
 
static urs ($a, $b)
 

Attributs protégés statiques

static $Sbox
 
static $Rcon
 
static $passwords = array()
 

Fonctions membres privées statiques

static getStaticSaltExpandedKey ($password)
 

Attributs privés statiques

static $pbkdf2Algorithm = 'sha1'
 
static $pbkdf2Iterations = 1000
 
static $pbkdf2UseStaticSalt = 0
 
static $pbkdf2StaticSalt = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
 

Description détaillée

AES implementation in PHP (c) Chris Veness 2005-2016. Right to use and adapt is granted for under a simple creative commons attribution licence. No warranty of any form is offered.

Heavily modified for Akeeba Backup by Nicholas K. Dionysopoulos Also added AES-128 CBC mode (with mcrypt and OpenSSL) on top of AES CTR

Documentation des fonctions membres

◆ AddRoundKey()

static AddRoundKey (   $state,
  $w,
  $rnd,
  $Nb 
)
staticprotected

Références $r, et $state.

◆ AESDecryptCBC()

static AESDecryptCBC (   $ciphertext,
  $password 
)
static

AES decryption in CBC mode. This is the standard mode (the CTR methods actually use Rijndael-128 in CTR mode, which - technically - isn't AES).

It supports AES-128 only. It assumes that the last 4 bytes contain a little-endian unsigned long integer representing the unpadded data length.

Depuis
3.0.1
Auteur
Nicholas K. Dionysopoulos
Paramètres
string$ciphertextThe data to encrypt
string$passwordEncryption password
Renvoie
string The plaintext

Références $key, $params, $password, et elseif.

◆ AESDecryptCtr()

static AESDecryptCtr (   $ciphertext,
  $password,
  $nBits 
)
static

Decrypt a text encrypted by AES in counter mode of operation

Paramètres
string$ciphertextSource text to be decrypted
string$passwordThe password to use to generate a key
int$nBitsNumber of bits to be used in the key (128, 192, or 256)
Renvoie
string Decrypted text

Références $b, $i, $key, et $password.

◆ AESEncryptCtr()

static AESEncryptCtr (   $plaintext,
  $password,
  $nBits 
)
static

Encrypt a text using AES encryption in Counter mode of operation

Unicode multi-byte character safe

Paramètres
string$plaintextSource text to be encrypted
string$passwordThe password to use to generate a key
int$nBitsNumber of bits to be used in the key (128, 192, or 256)
Renvoie
string Encrypted text

Références $b, $i, $key, et $password.

◆ Cipher()

static Cipher (   $input,
  $w 
)
staticprotected

AES Cipher function: encrypt 'input' with Rijndael algorithm

Paramètres
array$inputMessage as byte-array (16 bytes)
array$wkey schedule as 2D byte-array (Nr+1 x Nb bytes) - generated from the cipher key by KeyExpansion()
Renvoie
string Ciphertext as byte-array (16 bytes)

Références $i, $input, $output, et $state.

◆ createTheWrongIV()

static createTheWrongIV (   $password)
static

That's the old way of creating an IV that's definitely not cryptographically sound.

DO NOT USE, EVER, UNLESS YOU WANT TO DECRYPT LEGACY DATA

Paramètres
string$passwordThe raw password from which we create an IV in a super bozo way
Renvoie
string A 16-byte IV string

Références $i, $key, et $password.

◆ expandKey()

static expandKey (   $password)
static

Expand the password to an appropriate 128-bit encryption key

Paramètres
string$password
Renvoie
string
Depuis
5.2.0
Auteur
Nicholas K. Dionysopoulos

Références $i, $key, et $password.

◆ getAdapter()

static getAdapter ( )
static

Returns the correct AES-128 CBC encryption adapter

Renvoie
AKEncryptionAESAdapterInterface
Depuis
5.2.0
Auteur
Nicholas K. Dionysopoulos

Références null.

◆ getKeyDerivationParameters()

static getKeyDerivationParameters ( )
static

Get the parameters fed into PBKDF2 to expand the user password into an encryption key. These are the static parameters (key size, hashing algorithm and number of iterations). A new salt is used for each encryption block to minimize the risk of attacks against the password.

Renvoie
array

◆ getPbkdf2Algorithm()

static getPbkdf2Algorithm ( )
static
Renvoie
string

◆ getPbkdf2Iterations()

static getPbkdf2Iterations ( )
static
Renvoie
int

◆ getPbkdf2StaticSalt()

static getPbkdf2StaticSalt ( )
static
Renvoie
string

◆ getPbkdf2UseStaticSalt()

static getPbkdf2UseStaticSalt ( )
static
Renvoie
int

◆ getStaticSaltExpandedKey()

static getStaticSaltExpandedKey (   $password)
staticprivate

Get the expanded key from the user supplied password using a static salt. The results are cached for performance reasons.

Paramètres
string$passwordThe user-supplied password, UTF-8 encoded.
Renvoie
string The expanded key

Références $params, et $password.

◆ KeyExpansion()

static KeyExpansion (   $key)
staticprotected

Key expansion for Rijndael Cipher(): performs key expansion on cipher key to generate a key schedule

Paramètres
array$keyCipher key byte-array (16 bytes)
Renvoie
array Key schedule as 2D byte-array (Nr+1 x Nb bytes)

Références $i, $key, et $r.

◆ MixColumns()

static MixColumns (   $s)
staticprotected

Références $b, et $i.

◆ pbkdf2()

static pbkdf2 (   $password,
  $salt,
  $algorithm = 'sha1',
  $count = 1000,
  $key_length = 16 
)
static

PBKDF2 key derivation function as defined by RSA's PKCS #5: https://www.ietf.org/rfc/rfc2898.txt

Test vectors can be found here: https://www.ietf.org/rfc/rfc6070.txt

This implementation of PBKDF2 was originally created by https://defuse.ca With improvements by http://www.variations-of-shadow.com Modified for Akeeba Engine by Akeeba Ltd (removed unnecessary checks to make it faster)

Paramètres
string$passwordThe password.
string$saltA salt that is unique to the password.
string$algorithmThe hash algorithm to use. Default is sha1.
int$countIteration count. Higher is better, but slower. Default: 1000.
int$key_lengthThe length of the derived key in bytes.
Renvoie
string A string of $key_length bytes

Références $count, $i, $output, et $password.

◆ RotWord()

static RotWord (   $w)
staticprotected

Références $i, et $tmp.

◆ setPbkdf2Algorithm()

static setPbkdf2Algorithm (   $pbkdf2Algorithm)
static
Paramètres
string$pbkdf2Algorithm
Renvoie
void

Références $pbkdf2Algorithm.

◆ setPbkdf2Iterations()

static setPbkdf2Iterations (   $pbkdf2Iterations)
static
Paramètres
int$pbkdf2Iterations
Renvoie
void

Références $pbkdf2Iterations.

◆ setPbkdf2StaticSalt()

static setPbkdf2StaticSalt (   $pbkdf2StaticSalt)
static
Paramètres
string$pbkdf2StaticSalt
Renvoie
void

Références $pbkdf2StaticSalt.

◆ setPbkdf2UseStaticSalt()

static setPbkdf2UseStaticSalt (   $pbkdf2UseStaticSalt)
static
Paramètres
int$pbkdf2UseStaticSalt
Renvoie
void

Références $pbkdf2UseStaticSalt.

◆ ShiftRows()

static ShiftRows (   $s,
  $Nb 
)
staticprotected

Références $r.

◆ SubBytes()

static SubBytes (   $s,
  $Nb 
)
staticprotected

Références $r.

◆ SubWord()

static SubWord (   $w)
staticprotected

Références $i.

◆ urs()

static urs (   $a,
  $b 
)
staticprotected

Références $b.

Documentation des champs

◆ $passwords

$passwords = array()
staticprotected

◆ $pbkdf2Algorithm

$pbkdf2Algorithm = 'sha1'
staticprivate

Référencé par setPbkdf2Algorithm().

◆ $pbkdf2Iterations

$pbkdf2Iterations = 1000
staticprivate

Référencé par setPbkdf2Iterations().

◆ $pbkdf2StaticSalt

$pbkdf2StaticSalt = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
staticprivate

Référencé par setPbkdf2StaticSalt().

◆ $pbkdf2UseStaticSalt

$pbkdf2UseStaticSalt = 0
staticprivate

Référencé par setPbkdf2UseStaticSalt().

◆ $Rcon

$Rcon
staticprotected
Valeur initiale :
= array(
array(0x00, 0x00, 0x00, 0x00),
array(0x01, 0x00, 0x00, 0x00),
array(0x02, 0x00, 0x00, 0x00),
array(0x04, 0x00, 0x00, 0x00),
array(0x08, 0x00, 0x00, 0x00),
array(0x10, 0x00, 0x00, 0x00),
array(0x20, 0x00, 0x00, 0x00),
array(0x40, 0x00, 0x00, 0x00),
array(0x80, 0x00, 0x00, 0x00),
array(0x1b, 0x00, 0x00, 0x00),
array(0x36, 0x00, 0x00, 0x00))

◆ $Sbox

$Sbox
staticprotected
Valeur initiale :
=
array(0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76,
0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0,
0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75,
0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84,
0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,
0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8,
0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2,
0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,
0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb,
0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79,
0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,
0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a,
0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e,
0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16)
La documentation de cette classe a été générée à partir du fichier suivant :