Created
February 4, 2010 15:19
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SHA1 crypt functions for ADODB
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<?php | |
class SHA1Crypt{ | |
function keyED($txt,$encrypt_key) | |
{ | |
$encrypt_key = sha1($encrypt_key); | |
$ctr=0; | |
$tmp = ""; | |
for ($i=0;$i<strlen($txt);$i++){ | |
if ($ctr==strlen($encrypt_key)) $ctr=0; | |
$tmp.= substr($txt,$i,1) ^ substr($encrypt_key,$ctr,1); | |
$ctr++; | |
} | |
return $tmp; | |
} | |
function Encrypt($txt,$key) | |
{ | |
srand((double)microtime()*1000000); | |
$encrypt_key = sha1(rand(0,32000)); | |
$ctr=0; | |
$tmp = ""; | |
for ($i=0;$i<strlen($txt);$i++) | |
{ | |
if ($ctr==strlen($encrypt_key)) $ctr=0; | |
$tmp.= substr($encrypt_key,$ctr,1) . | |
(substr($txt,$i,1) ^ substr($encrypt_key,$ctr,1)); | |
$ctr++; | |
} | |
return base64_encode($this->keyED($tmp,$key)); | |
} | |
function Decrypt($txt,$key) | |
{ | |
$txt = $this->keyED(base64_decode($txt),$key); | |
$tmp = ""; | |
for ($i=0;$i<strlen($txt);$i++){ | |
$sha1 = substr($txt,$i,1); | |
$i++; | |
$tmp.= (substr($txt,$i,1) ^ $sha1); | |
} | |
return $tmp; | |
} | |
function RandPass() | |
{ | |
$randomPassword = ""; | |
srand((double)microtime()*1000000); | |
for($i=0;$i<8;$i++) | |
{ | |
$randnumber = rand(48,120); | |
while (($randnumber >= 58 && $randnumber <= 64) || ($randnumber >= 91 && $randnumber <= 96)) | |
{ | |
$randnumber = rand(48,120); | |
} | |
$randomPassword .= chr($randnumber); | |
} | |
return $randomPassword; | |
} | |
} |
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