ILIAS  release_5-3 Revision v5.3.23-19-g915713cf615
Public Member Functions | Static Private Member Functions | Private Attributes
PHPExcel_Reader_Excel5_MD5 Class Reference
+ Collaboration diagram for PHPExcel_Reader_Excel5_MD5:

Public Member Functions

 __construct ()
 MD5 stream constructor. More...
 
 reset ()
 Reset the MD5 stream context. More...
 
 getContext ()
 Get MD5 stream context. More...
 
 add ($data)
 Add data to context. More...
 

Static Private Member Functions

static F ($X, $Y, $Z)
 
static G ($X, $Y, $Z)
 
static H ($X, $Y, $Z)
 
static I ($X, $Y, $Z)
 
static step ($func, &$A, $B, $C, $D, $M, $s, $t)
 
static rotate ($decimal, $bits)
 

Private Attributes

 $a
 
 $b
 
 $c
 
 $d
 

Detailed Description

Definition at line 36 of file MD5.php.

Constructor & Destructor Documentation

◆ __construct()

PHPExcel_Reader_Excel5_MD5::__construct ( )

MD5 stream constructor.

Definition at line 48 of file MD5.php.

References reset().

49  {
50  $this->reset();
51  }
PHPExcel_Reader_Excel5_MD5\reset
reset()
Reset the MD5 stream context.
Definition: MD5.php:57
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Member Function Documentation

◆ add()

PHPExcel_Reader_Excel5_MD5::add (   $data)

Add data to context.

Parameters
string$dataData to add

Definition at line 91 of file MD5.php.

References $a, $b, $c, $d, $data, and array.

92  {
93  $words = array_values(unpack('V16', $data));
94 
95  $A = $this->a;
96  $B = $this->b;
97  $C = $this->c;
98  $D = $this->d;
99 
100  $F = array('PHPExcel_Reader_Excel5_MD5','F');
101  $G = array('PHPExcel_Reader_Excel5_MD5','G');
102  $H = array('PHPExcel_Reader_Excel5_MD5','H');
103  $I = array('PHPExcel_Reader_Excel5_MD5','I');
104 
105  /* ROUND 1 */
106  self::step($F, $A, $B, $C, $D, $words[0], 7, 0xd76aa478);
107  self::step($F, $D, $A, $B, $C, $words[1], 12, 0xe8c7b756);
108  self::step($F, $C, $D, $A, $B, $words[2], 17, 0x242070db);
109  self::step($F, $B, $C, $D, $A, $words[3], 22, 0xc1bdceee);
110  self::step($F, $A, $B, $C, $D, $words[4], 7, 0xf57c0faf);
111  self::step($F, $D, $A, $B, $C, $words[5], 12, 0x4787c62a);
112  self::step($F, $C, $D, $A, $B, $words[6], 17, 0xa8304613);
113  self::step($F, $B, $C, $D, $A, $words[7], 22, 0xfd469501);
114  self::step($F, $A, $B, $C, $D, $words[8], 7, 0x698098d8);
115  self::step($F, $D, $A, $B, $C, $words[9], 12, 0x8b44f7af);
116  self::step($F, $C, $D, $A, $B, $words[10], 17, 0xffff5bb1);
117  self::step($F, $B, $C, $D, $A, $words[11], 22, 0x895cd7be);
118  self::step($F, $A, $B, $C, $D, $words[12], 7, 0x6b901122);
119  self::step($F, $D, $A, $B, $C, $words[13], 12, 0xfd987193);
120  self::step($F, $C, $D, $A, $B, $words[14], 17, 0xa679438e);
121  self::step($F, $B, $C, $D, $A, $words[15], 22, 0x49b40821);
122 
123  /* ROUND 2 */
124  self::step($G, $A, $B, $C, $D, $words[1], 5, 0xf61e2562);
125  self::step($G, $D, $A, $B, $C, $words[6], 9, 0xc040b340);
126  self::step($G, $C, $D, $A, $B, $words[11], 14, 0x265e5a51);
127  self::step($G, $B, $C, $D, $A, $words[0], 20, 0xe9b6c7aa);
128  self::step($G, $A, $B, $C, $D, $words[5], 5, 0xd62f105d);
129  self::step($G, $D, $A, $B, $C, $words[10], 9, 0x02441453);
130  self::step($G, $C, $D, $A, $B, $words[15], 14, 0xd8a1e681);
131  self::step($G, $B, $C, $D, $A, $words[4], 20, 0xe7d3fbc8);
132  self::step($G, $A, $B, $C, $D, $words[9], 5, 0x21e1cde6);
133  self::step($G, $D, $A, $B, $C, $words[14], 9, 0xc33707d6);
134  self::step($G, $C, $D, $A, $B, $words[3], 14, 0xf4d50d87);
135  self::step($G, $B, $C, $D, $A, $words[8], 20, 0x455a14ed);
136  self::step($G, $A, $B, $C, $D, $words[13], 5, 0xa9e3e905);
137  self::step($G, $D, $A, $B, $C, $words[2], 9, 0xfcefa3f8);
138  self::step($G, $C, $D, $A, $B, $words[7], 14, 0x676f02d9);
139  self::step($G, $B, $C, $D, $A, $words[12], 20, 0x8d2a4c8a);
140 
141  /* ROUND 3 */
142  self::step($H, $A, $B, $C, $D, $words[5], 4, 0xfffa3942);
143  self::step($H, $D, $A, $B, $C, $words[8], 11, 0x8771f681);
144  self::step($H, $C, $D, $A, $B, $words[11], 16, 0x6d9d6122);
145  self::step($H, $B, $C, $D, $A, $words[14], 23, 0xfde5380c);
146  self::step($H, $A, $B, $C, $D, $words[1], 4, 0xa4beea44);
147  self::step($H, $D, $A, $B, $C, $words[4], 11, 0x4bdecfa9);
148  self::step($H, $C, $D, $A, $B, $words[7], 16, 0xf6bb4b60);
149  self::step($H, $B, $C, $D, $A, $words[10], 23, 0xbebfbc70);
150  self::step($H, $A, $B, $C, $D, $words[13], 4, 0x289b7ec6);
151  self::step($H, $D, $A, $B, $C, $words[0], 11, 0xeaa127fa);
152  self::step($H, $C, $D, $A, $B, $words[3], 16, 0xd4ef3085);
153  self::step($H, $B, $C, $D, $A, $words[6], 23, 0x04881d05);
154  self::step($H, $A, $B, $C, $D, $words[9], 4, 0xd9d4d039);
155  self::step($H, $D, $A, $B, $C, $words[12], 11, 0xe6db99e5);
156  self::step($H, $C, $D, $A, $B, $words[15], 16, 0x1fa27cf8);
157  self::step($H, $B, $C, $D, $A, $words[2], 23, 0xc4ac5665);
158 
159  /* ROUND 4 */
160  self::step($I, $A, $B, $C, $D, $words[0], 6, 0xf4292244);
161  self::step($I, $D, $A, $B, $C, $words[7], 10, 0x432aff97);
162  self::step($I, $C, $D, $A, $B, $words[14], 15, 0xab9423a7);
163  self::step($I, $B, $C, $D, $A, $words[5], 21, 0xfc93a039);
164  self::step($I, $A, $B, $C, $D, $words[12], 6, 0x655b59c3);
165  self::step($I, $D, $A, $B, $C, $words[3], 10, 0x8f0ccc92);
166  self::step($I, $C, $D, $A, $B, $words[10], 15, 0xffeff47d);
167  self::step($I, $B, $C, $D, $A, $words[1], 21, 0x85845dd1);
168  self::step($I, $A, $B, $C, $D, $words[8], 6, 0x6fa87e4f);
169  self::step($I, $D, $A, $B, $C, $words[15], 10, 0xfe2ce6e0);
170  self::step($I, $C, $D, $A, $B, $words[6], 15, 0xa3014314);
171  self::step($I, $B, $C, $D, $A, $words[13], 21, 0x4e0811a1);
172  self::step($I, $A, $B, $C, $D, $words[4], 6, 0xf7537e82);
173  self::step($I, $D, $A, $B, $C, $words[11], 10, 0xbd3af235);
174  self::step($I, $C, $D, $A, $B, $words[2], 15, 0x2ad7d2bb);
175  self::step($I, $B, $C, $D, $A, $words[9], 21, 0xeb86d391);
176 
177  $this->a = ($this->a + $A) & 0xffffffff;
178  $this->b = ($this->b + $B) & 0xffffffff;
179  $this->c = ($this->c + $C) & 0xffffffff;
180  $this->d = ($this->d + $D) & 0xffffffff;
181  }
PHPExcel_Reader_Excel5_MD5\$c
$c
Definition: MD5.php:41
PHPExcel_Reader_Excel5_MD5\$b
$b
Definition: MD5.php:40
PHPExcel_Reader_Excel5_MD5\$a
$a
Definition: MD5.php:39
PHPExcel_Reader_Excel5_MD5\$d
$d
Definition: MD5.php:42
array
Create styles array
The data for the language used.
Definition: 40duplicateStyle.php:19

◆ F()

static PHPExcel_Reader_Excel5_MD5::F (   $X,
  $Y,
  $Z 
)
staticprivate

Definition at line 184 of file MD5.php.

185  {
186  return (($X & $Y) | ((~ $X) & $Z)); // X AND Y OR NOT X AND Z
187  }

◆ G()

static PHPExcel_Reader_Excel5_MD5::G (   $X,
  $Y,
  $Z 
)
staticprivate

Definition at line 190 of file MD5.php.

191  {
192  return (($X & $Z) | ($Y & (~ $Z))); // X AND Z OR Y AND NOT Z
193  }

◆ getContext()

PHPExcel_Reader_Excel5_MD5::getContext ( )

Get MD5 stream context.

Returns
string

Definition at line 71 of file MD5.php.

References $i, $s, and array.

72  {
73  $s = '';
74  foreach (array('a', 'b', 'c', 'd') as $i) {
75  $v = $this->{$i};
76  $s .= chr($v & 0xff);
77  $s .= chr(($v >> 8) & 0xff);
78  $s .= chr(($v >> 16) & 0xff);
79  $s .= chr(($v >> 24) & 0xff);
80  }
81 
82  return $s;
83  }
$s
$s
Definition: pwgen.php:45
array
Create styles array
The data for the language used.
Definition: 40duplicateStyle.php:19
$i
$i
Definition: disco.tpl.php:19

◆ H()

static PHPExcel_Reader_Excel5_MD5::H (   $X,
  $Y,
  $Z 
)
staticprivate

Definition at line 196 of file MD5.php.

197  {
198  return ($X ^ $Y ^ $Z); // X XOR Y XOR Z
199  }

◆ I()

static PHPExcel_Reader_Excel5_MD5::I (   $X,
  $Y,
  $Z 
)
staticprivate

Definition at line 202 of file MD5.php.

203  {
204  return ($Y ^ ($X | (~ $Z))) ; // Y XOR (X OR NOT Z)
205  }

◆ reset()

PHPExcel_Reader_Excel5_MD5::reset ( )

Reset the MD5 stream context.

Definition at line 57 of file MD5.php.

Referenced by __construct().

58  {
59  $this->a = 0x67452301;
60  $this->b = 0xEFCDAB89;
61  $this->c = 0x98BADCFE;
62  $this->d = 0x10325476;
63  }
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◆ rotate()

static PHPExcel_Reader_Excel5_MD5::rotate (   $decimal,
  $bits 
)
staticprivate

Definition at line 216 of file MD5.php.

217  {
218  $binary = str_pad(decbin($decimal), 32, "0", STR_PAD_LEFT);
219  return bindec(substr($binary, $bits).substr($binary, 0, $bits));
220  }

◆ step()

static PHPExcel_Reader_Excel5_MD5::step (   $func,
&  $A,
  $B,
  $C,
  $D,
  $M,
  $s,
  $t 
)
staticprivate

Definition at line 208 of file MD5.php.

References $s, and $t.

209  {
210  $A = ($A + call_user_func($func, $B, $C, $D) + $M + $t) & 0xffffffff;
211  $A = self::rotate($A, $s);
212  $A = ($B + $A) & 0xffffffff;
213  }
$s
$s
Definition: pwgen.php:45

Field Documentation

◆ $a

PHPExcel_Reader_Excel5_MD5::$a
private

Definition at line 39 of file MD5.php.

Referenced by add().

◆ $b

PHPExcel_Reader_Excel5_MD5::$b
private

Definition at line 40 of file MD5.php.

Referenced by add().

◆ $c

PHPExcel_Reader_Excel5_MD5::$c
private

Definition at line 41 of file MD5.php.

Referenced by add().

◆ $d

PHPExcel_Reader_Excel5_MD5::$d
private

Definition at line 42 of file MD5.php.

Referenced by add().

The documentation for this class was generated from the following file: