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SymmetricKey: rm safe_intval

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terrafrost 2023-03-03 14:06:25 -06:00
parent f519a54e7a
commit c918d60b20
2 changed files with 30 additions and 56 deletions
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59
phpseclib/Crypt/Blowfish.php
View File

@ -724,26 +724,26 @@ class Blowfish extends BlockCipher
* @param int[] $p
* @return int[]
*/
private static function encryptBlockHelperSlow($x0, $x1, array $sbox0, array $sbox1, array $sbox2, array $sbox3, array $p)
private static function encryptBlockHelperSlow(int $x0, int $x1, array $sbox0, array $sbox1, array $sbox2, array $sbox3, array $p): array
{
// -16777216 == intval(0xFF000000) on 32-bit PHP installs
$x0 ^= $p[0];
$x1 ^= self::safe_intval((self::safe_intval($sbox0[(($x0 & -16777216) >> 24) & 0xFF] + $sbox1[($x0 & 0xFF0000) >> 16]) ^ $sbox2[($x0 & 0xFF00) >> 8]) + $sbox3[$x0 & 0xFF]) ^ $p[1];
$x0 ^= self::safe_intval((self::safe_intval($sbox0[(($x1 & -16777216) >> 24) & 0xFF] + $sbox1[($x1 & 0xFF0000) >> 16]) ^ $sbox2[($x1 & 0xFF00) >> 8]) + $sbox3[$x1 & 0xFF]) ^ $p[2];
$x1 ^= self::safe_intval((self::safe_intval($sbox0[(($x0 & -16777216) >> 24) & 0xFF] + $sbox1[($x0 & 0xFF0000) >> 16]) ^ $sbox2[($x0 & 0xFF00) >> 8]) + $sbox3[$x0 & 0xFF]) ^ $p[3];
$x0 ^= self::safe_intval((self::safe_intval($sbox0[(($x1 & -16777216) >> 24) & 0xFF] + $sbox1[($x1 & 0xFF0000) >> 16]) ^ $sbox2[($x1 & 0xFF00) >> 8]) + $sbox3[$x1 & 0xFF]) ^ $p[4];
$x1 ^= self::safe_intval((self::safe_intval($sbox0[(($x0 & -16777216) >> 24) & 0xFF] + $sbox1[($x0 & 0xFF0000) >> 16]) ^ $sbox2[($x0 & 0xFF00) >> 8]) + $sbox3[$x0 & 0xFF]) ^ $p[5];
$x0 ^= self::safe_intval((self::safe_intval($sbox0[(($x1 & -16777216) >> 24) & 0xFF] + $sbox1[($x1 & 0xFF0000) >> 16]) ^ $sbox2[($x1 & 0xFF00) >> 8]) + $sbox3[$x1 & 0xFF]) ^ $p[6];
$x1 ^= self::safe_intval((self::safe_intval($sbox0[(($x0 & -16777216) >> 24) & 0xFF] + $sbox1[($x0 & 0xFF0000) >> 16]) ^ $sbox2[($x0 & 0xFF00) >> 8]) + $sbox3[$x0 & 0xFF]) ^ $p[7];
$x0 ^= self::safe_intval((self::safe_intval($sbox0[(($x1 & -16777216) >> 24) & 0xFF] + $sbox1[($x1 & 0xFF0000) >> 16]) ^ $sbox2[($x1 & 0xFF00) >> 8]) + $sbox3[$x1 & 0xFF]) ^ $p[8];
$x1 ^= self::safe_intval((self::safe_intval($sbox0[(($x0 & -16777216) >> 24) & 0xFF] + $sbox1[($x0 & 0xFF0000) >> 16]) ^ $sbox2[($x0 & 0xFF00) >> 8]) + $sbox3[$x0 & 0xFF]) ^ $p[9];
$x0 ^= self::safe_intval((self::safe_intval($sbox0[(($x1 & -16777216) >> 24) & 0xFF] + $sbox1[($x1 & 0xFF0000) >> 16]) ^ $sbox2[($x1 & 0xFF00) >> 8]) + $sbox3[$x1 & 0xFF]) ^ $p[10];
$x1 ^= self::safe_intval((self::safe_intval($sbox0[(($x0 & -16777216) >> 24) & 0xFF] + $sbox1[($x0 & 0xFF0000) >> 16]) ^ $sbox2[($x0 & 0xFF00) >> 8]) + $sbox3[$x0 & 0xFF]) ^ $p[11];
$x0 ^= self::safe_intval((self::safe_intval($sbox0[(($x1 & -16777216) >> 24) & 0xFF] + $sbox1[($x1 & 0xFF0000) >> 16]) ^ $sbox2[($x1 & 0xFF00) >> 8]) + $sbox3[$x1 & 0xFF]) ^ $p[12];
$x1 ^= self::safe_intval((self::safe_intval($sbox0[(($x0 & -16777216) >> 24) & 0xFF] + $sbox1[($x0 & 0xFF0000) >> 16]) ^ $sbox2[($x0 & 0xFF00) >> 8]) + $sbox3[$x0 & 0xFF]) ^ $p[13];
$x0 ^= self::safe_intval((self::safe_intval($sbox0[(($x1 & -16777216) >> 24) & 0xFF] + $sbox1[($x1 & 0xFF0000) >> 16]) ^ $sbox2[($x1 & 0xFF00) >> 8]) + $sbox3[$x1 & 0xFF]) ^ $p[14];
$x1 ^= self::safe_intval((self::safe_intval($sbox0[(($x0 & -16777216) >> 24) & 0xFF] + $sbox1[($x0 & 0xFF0000) >> 16]) ^ $sbox2[($x0 & 0xFF00) >> 8]) + $sbox3[$x0 & 0xFF]) ^ $p[15];
$x0 ^= self::safe_intval((self::safe_intval($sbox0[(($x1 & -16777216) >> 24) & 0xFF] + $sbox1[($x1 & 0xFF0000) >> 16]) ^ $sbox2[($x1 & 0xFF00) >> 8]) + $sbox3[$x1 & 0xFF]) ^ $p[16];
$x1 ^= intval((intval($sbox0[(($x0 & -16777216) >> 24) & 0xFF] + $sbox1[($x0 & 0xFF0000) >> 16]) ^ $sbox2[($x0 & 0xFF00) >> 8]) + $sbox3[$x0 & 0xFF]) ^ $p[1];
$x0 ^= intval((intval($sbox0[(($x1 & -16777216) >> 24) & 0xFF] + $sbox1[($x1 & 0xFF0000) >> 16]) ^ $sbox2[($x1 & 0xFF00) >> 8]) + $sbox3[$x1 & 0xFF]) ^ $p[2];
$x1 ^= intval((intval($sbox0[(($x0 & -16777216) >> 24) & 0xFF] + $sbox1[($x0 & 0xFF0000) >> 16]) ^ $sbox2[($x0 & 0xFF00) >> 8]) + $sbox3[$x0 & 0xFF]) ^ $p[3];
$x0 ^= intval((intval($sbox0[(($x1 & -16777216) >> 24) & 0xFF] + $sbox1[($x1 & 0xFF0000) >> 16]) ^ $sbox2[($x1 & 0xFF00) >> 8]) + $sbox3[$x1 & 0xFF]) ^ $p[4];
$x1 ^= intval((intval($sbox0[(($x0 & -16777216) >> 24) & 0xFF] + $sbox1[($x0 & 0xFF0000) >> 16]) ^ $sbox2[($x0 & 0xFF00) >> 8]) + $sbox3[$x0 & 0xFF]) ^ $p[5];
$x0 ^= intval((intval($sbox0[(($x1 & -16777216) >> 24) & 0xFF] + $sbox1[($x1 & 0xFF0000) >> 16]) ^ $sbox2[($x1 & 0xFF00) >> 8]) + $sbox3[$x1 & 0xFF]) ^ $p[6];
$x1 ^= intval((intval($sbox0[(($x0 & -16777216) >> 24) & 0xFF] + $sbox1[($x0 & 0xFF0000) >> 16]) ^ $sbox2[($x0 & 0xFF00) >> 8]) + $sbox3[$x0 & 0xFF]) ^ $p[7];
$x0 ^= intval((intval($sbox0[(($x1 & -16777216) >> 24) & 0xFF] + $sbox1[($x1 & 0xFF0000) >> 16]) ^ $sbox2[($x1 & 0xFF00) >> 8]) + $sbox3[$x1 & 0xFF]) ^ $p[8];
$x1 ^= intval((intval($sbox0[(($x0 & -16777216) >> 24) & 0xFF] + $sbox1[($x0 & 0xFF0000) >> 16]) ^ $sbox2[($x0 & 0xFF00) >> 8]) + $sbox3[$x0 & 0xFF]) ^ $p[9];
$x0 ^= intval((intval($sbox0[(($x1 & -16777216) >> 24) & 0xFF] + $sbox1[($x1 & 0xFF0000) >> 16]) ^ $sbox2[($x1 & 0xFF00) >> 8]) + $sbox3[$x1 & 0xFF]) ^ $p[10];
$x1 ^= intval((intval($sbox0[(($x0 & -16777216) >> 24) & 0xFF] + $sbox1[($x0 & 0xFF0000) >> 16]) ^ $sbox2[($x0 & 0xFF00) >> 8]) + $sbox3[$x0 & 0xFF]) ^ $p[11];
$x0 ^= intval((intval($sbox0[(($x1 & -16777216) >> 24) & 0xFF] + $sbox1[($x1 & 0xFF0000) >> 16]) ^ $sbox2[($x1 & 0xFF00) >> 8]) + $sbox3[$x1 & 0xFF]) ^ $p[12];
$x1 ^= intval((intval($sbox0[(($x0 & -16777216) >> 24) & 0xFF] + $sbox1[($x0 & 0xFF0000) >> 16]) ^ $sbox2[($x0 & 0xFF00) >> 8]) + $sbox3[$x0 & 0xFF]) ^ $p[13];
$x0 ^= intval((intval($sbox0[(($x1 & -16777216) >> 24) & 0xFF] + $sbox1[($x1 & 0xFF0000) >> 16]) ^ $sbox2[($x1 & 0xFF00) >> 8]) + $sbox3[$x1 & 0xFF]) ^ $p[14];
$x1 ^= intval((intval($sbox0[(($x0 & -16777216) >> 24) & 0xFF] + $sbox1[($x0 & 0xFF0000) >> 16]) ^ $sbox2[($x0 & 0xFF00) >> 8]) + $sbox3[$x0 & 0xFF]) ^ $p[15];
$x0 ^= intval((intval($sbox0[(($x1 & -16777216) >> 24) & 0xFF] + $sbox1[($x1 & 0xFF0000) >> 16]) ^ $sbox2[($x1 & 0xFF00) >> 8]) + $sbox3[$x1 & 0xFF]) ^ $p[16];
return [$x1 ^ $p[17], $x0];
}
@ -765,14 +765,14 @@ class Blowfish extends BlockCipher
for ($i = 17; $i > 2; $i -= 2) {
$l ^= $p[$i];
$r ^= ($sb_0[$l >> 24 & 0xff] + $sb_1[$l >> 16 & 0xff] ^
$r ^= intval((intval($sb_0[$l >> 24 & 0xff] + $sb_1[$l >> 16 & 0xff]) ^
$sb_2[$l >> 8 & 0xff]) +
$sb_3[$l & 0xff];
$sb_3[$l & 0xff]);
$r ^= $p[$i - 1];
$l ^= ($sb_0[$r >> 24 & 0xff] + $sb_1[$r >> 16 & 0xff] ^
$l ^= intval((intval($sb_0[$r >> 24 & 0xff] + $sb_1[$r >> 16 & 0xff]) ^
$sb_2[$r >> 8 & 0xff]) +
$sb_3[$r & 0xff];
$sb_3[$r & 0xff]);
}
return pack('N*', $r ^ $p[0], $l ^ $p[1]);
}
@ -804,14 +804,14 @@ class Blowfish extends BlockCipher
for ($i = 0; $i < 16; $i += 2) {
$encrypt_block .= '
$l^= ' . $p[$i] . ';
$r^= ($sb_0[$l >> 24 & 0xff] + $sb_1[$l >> 16 & 0xff] ^
$r^= intval((intval($sb_0[$l >> 24 & 0xff] + $sb_1[$l >> 16 & 0xff]) ^
$sb_2[$l >> 8 & 0xff]) +
$sb_3[$l & 0xff];
$sb_3[$l & 0xff]);
$r^= ' . $p[$i + 1] . ';
$l^= ($sb_0[$r >> 24 & 0xff] + $sb_1[$r >> 16 & 0xff] ^
$l^= intval((intval($sb_0[$r >> 24 & 0xff] + $sb_1[$r >> 16 & 0xff]) ^
$sb_2[$r >> 8 & 0xff]) +
$sb_3[$r & 0xff];
$sb_3[$r & 0xff]);
';
}
$encrypt_block .= '
@ -820,6 +820,7 @@ class Blowfish extends BlockCipher
$l ^ ' . $p[16] . '
);
';
// Generating decrypt code:
$decrypt_block = '
$in = unpack("N*", $in);
@ -830,14 +831,14 @@ class Blowfish extends BlockCipher
for ($i = 17; $i > 2; $i -= 2) {
$decrypt_block .= '
$l^= ' . $p[$i] . ';
$r^= ($sb_0[$l >> 24 & 0xff] + $sb_1[$l >> 16 & 0xff] ^
$r^= intval((intval($sb_0[$l >> 24 & 0xff] + $sb_1[$l >> 16 & 0xff]) ^
$sb_2[$l >> 8 & 0xff]) +
$sb_3[$l & 0xff];
$sb_3[$l & 0xff]);
$r^= ' . $p[$i - 1] . ';
$l^= ($sb_0[$r >> 24 & 0xff] + $sb_1[$r >> 16 & 0xff] ^
$l^= intval((intval($sb_0[$r >> 24 & 0xff] + $sb_1[$r >> 16 & 0xff]) ^
$sb_2[$r >> 8 & 0xff]) +
$sb_3[$r & 0xff];
$sb_3[$r & 0xff]);
';
}

27
phpseclib/Crypt/Common/SymmetricKey.php
View File

@ -2814,33 +2814,6 @@ abstract class SymmetricKey
throw new LogicException('\Closure::bind() failed.');
}
/**
* Convert float to int
*
* On ARM CPUs converting floats to ints doesn't always work
*
* @param string $x
* @return int
*/
protected static function safe_intval($x)
{
if (is_int($x)) {
return $x;
}
return PHP_INT_SIZE == 4 && PHP_VERSION_ID >= 80100 ? intval($x) : $x;
}
/**
* eval()'able string for in-line float to int
*
* @return string
*/
protected static function safe_intval_inline()
{
return PHP_INT_SIZE == 4 && PHP_VERSION_ID >= 80100 ? 'intval(%s)' : '%s';
}
/**
* Sets up GCM parameters
*