public static function ParagonIE_Sodium_Core_Ed25519::small_order in Automatic Updates 8
Same name and namespace in other branches
- 7 vendor/paragonie/sodium_compat/src/Core/Ed25519.php \ParagonIE_Sodium_Core_Ed25519::small_order()
Parameters
string $R:
Return value
bool
Throws
SodiumException
TypeError
3 calls to ParagonIE_Sodium_Core_Ed25519::small_order()
- ParagonIE_Sodium_Core_Ed25519::pk_to_curve25519 in vendor/
paragonie/ sodium_compat/ src/ Core/ Ed25519.php - ParagonIE_Sodium_Core_Ed25519::verify_detached in vendor/
paragonie/ sodium_compat/ src/ Core/ Ed25519.php - @internal You should not use this directly from another application
- ParagonIE_Sodium_File::verify in vendor/
paragonie/ sodium_compat/ src/ File.php - Verify a file (rather than a string). Uses less memory than ParagonIE_Sodium_Compat::crypto_sign_verify_detached(), but produces the same result.
File
- vendor/
paragonie/ sodium_compat/ src/ Core/ Ed25519.php, line 377
Class
- ParagonIE_Sodium_Core_Ed25519
- Class ParagonIE_Sodium_Core_Ed25519
Code
public static function small_order($R) {
/** @var array<int, array<int, int>> $blacklist */
$blacklist = array(
/* 0 (order 4) */
array(
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
),
/* 1 (order 1) */
array(
0x1,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
0x0,
),
/* 2707385501144840649318225287225658788936804267575313519463743609750303402022 (order 8) */
array(
0x26,
0xe8,
0x95,
0x8f,
0xc2,
0xb2,
0x27,
0xb0,
0x45,
0xc3,
0xf4,
0x89,
0xf2,
0xef,
0x98,
0xf0,
0xd5,
0xdf,
0xac,
0x5,
0xd3,
0xc6,
0x33,
0x39,
0xb1,
0x38,
0x2,
0x88,
0x6d,
0x53,
0xfc,
0x5,
),
/* 55188659117513257062467267217118295137698188065244968500265048394206261417927 (order 8) */
array(
0xc7,
0x17,
0x6a,
0x70,
0x3d,
0x4d,
0xd8,
0x4f,
0xba,
0x3c,
0xb,
0x76,
0xd,
0x10,
0x67,
0xf,
0x2a,
0x20,
0x53,
0xfa,
0x2c,
0x39,
0xcc,
0xc6,
0x4e,
0xc7,
0xfd,
0x77,
0x92,
0xac,
0x3,
0x7a,
),
/* p-1 (order 2) */
array(
0x13,
0xe8,
0x95,
0x8f,
0xc2,
0xb2,
0x27,
0xb0,
0x45,
0xc3,
0xf4,
0x89,
0xf2,
0xef,
0x98,
0xf0,
0xd5,
0xdf,
0xac,
0x5,
0xd3,
0xc6,
0x33,
0x39,
0xb1,
0x38,
0x2,
0x88,
0x6d,
0x53,
0xfc,
0x85,
),
/* p (order 4) */
array(
0xb4,
0x17,
0x6a,
0x70,
0x3d,
0x4d,
0xd8,
0x4f,
0xba,
0x3c,
0xb,
0x76,
0xd,
0x10,
0x67,
0xf,
0x2a,
0x20,
0x53,
0xfa,
0x2c,
0x39,
0xcc,
0xc6,
0x4e,
0xc7,
0xfd,
0x77,
0x92,
0xac,
0x3,
0xfa,
),
/* p+1 (order 1) */
array(
0xec,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0x7f,
),
/* p+2707385501144840649318225287225658788936804267575313519463743609750303402022 (order 8) */
array(
0xed,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0x7f,
),
/* p+55188659117513257062467267217118295137698188065244968500265048394206261417927 (order 8) */
array(
0xee,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0x7f,
),
/* 2p-1 (order 2) */
array(
0xd9,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
),
/* 2p (order 4) */
array(
0xda,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
),
/* 2p+1 (order 1) */
array(
0xdb,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
0xff,
),
);
/** @var int $countBlacklist */
$countBlacklist = count($blacklist);
for ($i = 0; $i < $countBlacklist; ++$i) {
$c = 0;
for ($j = 0; $j < 32; ++$j) {
$c |= self::chrToInt($R[$j]) ^ (int) $blacklist[$i][$j];
}
if ($c === 0) {
return true;
}
}
return false;
}