diff options
Diffstat (limited to '')
-rw-r--r-- | vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Reader/Xls/MD5.php | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Reader/Xls/MD5.php b/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Reader/Xls/MD5.php new file mode 100644 index 0000000..8ef2df2 --- /dev/null +++ b/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Reader/Xls/MD5.php @@ -0,0 +1,184 @@ +<?php
+
+namespace PhpOffice\PhpSpreadsheet\Reader\Xls;
+
+class MD5
+{
+ // Context
+ private $a;
+
+ private $b;
+
+ private $c;
+
+ private $d;
+
+ /**
+ * MD5 stream constructor.
+ */
+ public function __construct()
+ {
+ $this->reset();
+ }
+
+ /**
+ * Reset the MD5 stream context.
+ */
+ public function reset(): void
+ {
+ $this->a = 0x67452301;
+ $this->b = 0xEFCDAB89;
+ $this->c = 0x98BADCFE;
+ $this->d = 0x10325476;
+ }
+
+ /**
+ * Get MD5 stream context.
+ *
+ * @return string
+ */
+ public function getContext()
+ {
+ $s = '';
+ foreach (['a', 'b', 'c', 'd'] as $i) {
+ $v = $this->{$i};
+ $s .= chr($v & 0xff);
+ $s .= chr(($v >> 8) & 0xff);
+ $s .= chr(($v >> 16) & 0xff);
+ $s .= chr(($v >> 24) & 0xff);
+ }
+
+ return $s;
+ }
+
+ /**
+ * Add data to context.
+ *
+ * @param string $data Data to add
+ */
+ public function add($data): void
+ {
+ $words = array_values(unpack('V16', $data));
+
+ $A = $this->a;
+ $B = $this->b;
+ $C = $this->c;
+ $D = $this->d;
+
+ $F = ['self', 'f'];
+ $G = ['self', 'g'];
+ $H = ['self', 'h'];
+ $I = ['self', 'i'];
+
+ // ROUND 1
+ self::step($F, $A, $B, $C, $D, $words[0], 7, 0xd76aa478);
+ self::step($F, $D, $A, $B, $C, $words[1], 12, 0xe8c7b756);
+ self::step($F, $C, $D, $A, $B, $words[2], 17, 0x242070db);
+ self::step($F, $B, $C, $D, $A, $words[3], 22, 0xc1bdceee);
+ self::step($F, $A, $B, $C, $D, $words[4], 7, 0xf57c0faf);
+ self::step($F, $D, $A, $B, $C, $words[5], 12, 0x4787c62a);
+ self::step($F, $C, $D, $A, $B, $words[6], 17, 0xa8304613);
+ self::step($F, $B, $C, $D, $A, $words[7], 22, 0xfd469501);
+ self::step($F, $A, $B, $C, $D, $words[8], 7, 0x698098d8);
+ self::step($F, $D, $A, $B, $C, $words[9], 12, 0x8b44f7af);
+ self::step($F, $C, $D, $A, $B, $words[10], 17, 0xffff5bb1);
+ self::step($F, $B, $C, $D, $A, $words[11], 22, 0x895cd7be);
+ self::step($F, $A, $B, $C, $D, $words[12], 7, 0x6b901122);
+ self::step($F, $D, $A, $B, $C, $words[13], 12, 0xfd987193);
+ self::step($F, $C, $D, $A, $B, $words[14], 17, 0xa679438e);
+ self::step($F, $B, $C, $D, $A, $words[15], 22, 0x49b40821);
+
+ // ROUND 2
+ self::step($G, $A, $B, $C, $D, $words[1], 5, 0xf61e2562);
+ self::step($G, $D, $A, $B, $C, $words[6], 9, 0xc040b340);
+ self::step($G, $C, $D, $A, $B, $words[11], 14, 0x265e5a51);
+ self::step($G, $B, $C, $D, $A, $words[0], 20, 0xe9b6c7aa);
+ self::step($G, $A, $B, $C, $D, $words[5], 5, 0xd62f105d);
+ self::step($G, $D, $A, $B, $C, $words[10], 9, 0x02441453);
+ self::step($G, $C, $D, $A, $B, $words[15], 14, 0xd8a1e681);
+ self::step($G, $B, $C, $D, $A, $words[4], 20, 0xe7d3fbc8);
+ self::step($G, $A, $B, $C, $D, $words[9], 5, 0x21e1cde6);
+ self::step($G, $D, $A, $B, $C, $words[14], 9, 0xc33707d6);
+ self::step($G, $C, $D, $A, $B, $words[3], 14, 0xf4d50d87);
+ self::step($G, $B, $C, $D, $A, $words[8], 20, 0x455a14ed);
+ self::step($G, $A, $B, $C, $D, $words[13], 5, 0xa9e3e905);
+ self::step($G, $D, $A, $B, $C, $words[2], 9, 0xfcefa3f8);
+ self::step($G, $C, $D, $A, $B, $words[7], 14, 0x676f02d9);
+ self::step($G, $B, $C, $D, $A, $words[12], 20, 0x8d2a4c8a);
+
+ // ROUND 3
+ self::step($H, $A, $B, $C, $D, $words[5], 4, 0xfffa3942);
+ self::step($H, $D, $A, $B, $C, $words[8], 11, 0x8771f681);
+ self::step($H, $C, $D, $A, $B, $words[11], 16, 0x6d9d6122);
+ self::step($H, $B, $C, $D, $A, $words[14], 23, 0xfde5380c);
+ self::step($H, $A, $B, $C, $D, $words[1], 4, 0xa4beea44);
+ self::step($H, $D, $A, $B, $C, $words[4], 11, 0x4bdecfa9);
+ self::step($H, $C, $D, $A, $B, $words[7], 16, 0xf6bb4b60);
+ self::step($H, $B, $C, $D, $A, $words[10], 23, 0xbebfbc70);
+ self::step($H, $A, $B, $C, $D, $words[13], 4, 0x289b7ec6);
+ self::step($H, $D, $A, $B, $C, $words[0], 11, 0xeaa127fa);
+ self::step($H, $C, $D, $A, $B, $words[3], 16, 0xd4ef3085);
+ self::step($H, $B, $C, $D, $A, $words[6], 23, 0x04881d05);
+ self::step($H, $A, $B, $C, $D, $words[9], 4, 0xd9d4d039);
+ self::step($H, $D, $A, $B, $C, $words[12], 11, 0xe6db99e5);
+ self::step($H, $C, $D, $A, $B, $words[15], 16, 0x1fa27cf8);
+ self::step($H, $B, $C, $D, $A, $words[2], 23, 0xc4ac5665);
+
+ // ROUND 4
+ self::step($I, $A, $B, $C, $D, $words[0], 6, 0xf4292244);
+ self::step($I, $D, $A, $B, $C, $words[7], 10, 0x432aff97);
+ self::step($I, $C, $D, $A, $B, $words[14], 15, 0xab9423a7);
+ self::step($I, $B, $C, $D, $A, $words[5], 21, 0xfc93a039);
+ self::step($I, $A, $B, $C, $D, $words[12], 6, 0x655b59c3);
+ self::step($I, $D, $A, $B, $C, $words[3], 10, 0x8f0ccc92);
+ self::step($I, $C, $D, $A, $B, $words[10], 15, 0xffeff47d);
+ self::step($I, $B, $C, $D, $A, $words[1], 21, 0x85845dd1);
+ self::step($I, $A, $B, $C, $D, $words[8], 6, 0x6fa87e4f);
+ self::step($I, $D, $A, $B, $C, $words[15], 10, 0xfe2ce6e0);
+ self::step($I, $C, $D, $A, $B, $words[6], 15, 0xa3014314);
+ self::step($I, $B, $C, $D, $A, $words[13], 21, 0x4e0811a1);
+ self::step($I, $A, $B, $C, $D, $words[4], 6, 0xf7537e82);
+ self::step($I, $D, $A, $B, $C, $words[11], 10, 0xbd3af235);
+ self::step($I, $C, $D, $A, $B, $words[2], 15, 0x2ad7d2bb);
+ self::step($I, $B, $C, $D, $A, $words[9], 21, 0xeb86d391);
+
+ $this->a = ($this->a + $A) & 0xffffffff;
+ $this->b = ($this->b + $B) & 0xffffffff;
+ $this->c = ($this->c + $C) & 0xffffffff;
+ $this->d = ($this->d + $D) & 0xffffffff;
+ }
+
+ private static function f($X, $Y, $Z)
+ {
+ return ($X & $Y) | ((~$X) & $Z); // X AND Y OR NOT X AND Z
+ }
+
+ private static function g($X, $Y, $Z)
+ {
+ return ($X & $Z) | ($Y & (~$Z)); // X AND Z OR Y AND NOT Z
+ }
+
+ private static function h($X, $Y, $Z)
+ {
+ return $X ^ $Y ^ $Z; // X XOR Y XOR Z
+ }
+
+ private static function i($X, $Y, $Z)
+ {
+ return $Y ^ ($X | (~$Z)); // Y XOR (X OR NOT Z)
+ }
+
+ private static function step($func, &$A, $B, $C, $D, $M, $s, $t): void
+ {
+ $A = ($A + call_user_func($func, $B, $C, $D) + $M + $t) & 0xffffffff;
+ $A = self::rotate($A, $s);
+ $A = ($B + $A) & 0xffffffff;
+ }
+
+ private static function rotate($decimal, $bits)
+ {
+ $binary = str_pad(decbin($decimal), 32, '0', STR_PAD_LEFT);
+
+ return bindec(substr($binary, $bits) . substr($binary, 0, $bits));
+ }
+}
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