danog/phpseclib
1
0
Fork 0
mirror of https://github.com/danog/phpseclib.git synced 2024-12-04 18:48:24 +01:00
Code Issues Projects Releases Wiki Activity

BigInteger: fix issue with toBits on 32-bit PHP 8 installs

Browse Source
This commit is contained in:
terrafrost 2021-02-26 09:17:05 -06:00
parent 488db53bf7
commit b2b867f032
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
phpseclib/Math/BigInteger.php
View File

@ -673,11 +673,11 @@ class Math_BigInteger
{ {
$hex = $this->toHex($twos_compliment); $hex = $this->toHex($twos_compliment);
$bits = ''; $bits = '';
for ($i = strlen($hex) - 8, $start = strlen($hex) & 7; $i >= $start; $i-=8) { for ($i = strlen($hex) - 6, $start = strlen($hex) % 6; $i >= $start; $i-=6) {
$bits = str_pad(decbin(hexdec(substr($hex, $i, 8))), 32, '0', STR_PAD_LEFT) . $bits; $bits = str_pad(decbin(hexdec(substr($hex, $i, 6))), 24, '0', STR_PAD_LEFT) . $bits;
} }
if ($start) { // hexdec('') == 0 if ($start) { // hexdec('') == 0
$bits = str_pad(decbin(hexdec(substr($hex, 0, $start))), 8, '0', STR_PAD_LEFT) . $bits; $bits = str_pad(decbin(hexdec(substr($hex, 0, $start))), 8 * $start, '0', STR_PAD_LEFT) . $bits;
} }
$result = $this->precision > 0 ? substr($bits, -$this->precision) : ltrim($bits, '0'); $result = $this->precision > 0 ? substr($bits, -$this->precision) : ltrim($bits, '0');