Edit File by line

$vxx = self::fe_sq($h->X);

[1500] Fix | Delete

$vxx = self::fe_mul($vxx, $v);

[1501] Fix | Delete

$check = self::fe_sub($vxx, $u); /* vx^2 - u */

[1502] Fix | Delete

[1503] Fix | Delete

# if (fe_isnonzero(check)) {

[1504] Fix | Delete

# fe_add(check,vxx,u); /* vx^2+u */

[1505] Fix | Delete

# if (fe_isnonzero(check)) {

[1506] Fix | Delete

# return -1;

[1507] Fix | Delete

# }

[1508] Fix | Delete

# fe_mul(h->X,h->X,sqrtm1);

[1509] Fix | Delete

# }

[1510] Fix | Delete

if (self::fe_isnonzero($check)) {

[1511] Fix | Delete

$check = self::fe_add($vxx, $u); /* vx^2 + u */

[1512] Fix | Delete

if (self::fe_isnonzero($check)) {

[1513] Fix | Delete

throw new RangeException('Internal check failed.');

[1514] Fix | Delete

}

[1515] Fix | Delete

$h->X = self::fe_mul(

[1516] Fix | Delete

$h->X,

[1517] Fix | Delete

ParagonIE_Sodium_Core32_Curve25519_Fe::fromIntArray(self::$sqrtm1)

[1518] Fix | Delete

);

[1519] Fix | Delete

}

[1520] Fix | Delete

[1521] Fix | Delete

# if (fe_isnegative(h->X) == (s[31] >> 7)) {

[1522] Fix | Delete

# fe_neg(h->X,h->X);

[1523] Fix | Delete

# }

[1524] Fix | Delete

$i = self::chrToInt($s[31]);

[1525] Fix | Delete

if (self::fe_isnegative($h->X) === ($i >> 7)) {

[1526] Fix | Delete

$h->X = self::fe_neg($h->X);

[1527] Fix | Delete

}

[1528] Fix | Delete

[1529] Fix | Delete

# fe_mul(h->T,h->X,h->Y);

[1530] Fix | Delete

$h->T = self::fe_mul($h->X, $h->Y);

[1531] Fix | Delete

return $h;

[1532] Fix | Delete

}

[1533] Fix | Delete

[1534] Fix | Delete

/**

[1535] Fix | Delete

* @internal You should not use this directly from another application

[1536] Fix | Delete

[1537] Fix | Delete

* @param ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1 $R

[1538] Fix | Delete

* @param ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $p

[1539] Fix | Delete

* @param ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp $q

[1540] Fix | Delete

* @return ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1

[1541] Fix | Delete

* @throws SodiumException

[1542] Fix | Delete

* @throws TypeError

[1543] Fix | Delete

[1544] Fix | Delete

public static function ge_madd(

[1545] Fix | Delete

ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1 $R,

[1546] Fix | Delete

ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $p,

[1547] Fix | Delete

ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp $q

[1548] Fix | Delete

) {

[1549] Fix | Delete

$r = clone $R;

[1550] Fix | Delete

$r->X = self::fe_add($p->Y, $p->X);

[1551] Fix | Delete

$r->Y = self::fe_sub($p->Y, $p->X);

[1552] Fix | Delete

$r->Z = self::fe_mul($r->X, $q->yplusx);

[1553] Fix | Delete

$r->Y = self::fe_mul($r->Y, $q->yminusx);

[1554] Fix | Delete

$r->T = self::fe_mul($q->xy2d, $p->T);

[1555] Fix | Delete

$t0 = self::fe_add(clone $p->Z, clone $p->Z);

[1556] Fix | Delete

$r->X = self::fe_sub($r->Z, $r->Y);

[1557] Fix | Delete

$r->Y = self::fe_add($r->Z, $r->Y);

[1558] Fix | Delete

$r->Z = self::fe_add($t0, $r->T);

[1559] Fix | Delete

$r->T = self::fe_sub($t0, $r->T);

[1560] Fix | Delete

[1561] Fix | Delete

return $r;

[1562] Fix | Delete

}

[1563] Fix | Delete

[1564] Fix | Delete

/**

[1565] Fix | Delete

* @internal You should not use this directly from another application

[1566] Fix | Delete

[1567] Fix | Delete

* @param ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1 $R

[1568] Fix | Delete

* @param ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $p

[1569] Fix | Delete

* @param ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp $q

[1570] Fix | Delete

* @return ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1

[1571] Fix | Delete

* @throws SodiumException

[1572] Fix | Delete

* @throws TypeError

[1573] Fix | Delete

[1574] Fix | Delete

public static function ge_msub(

[1575] Fix | Delete

ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1 $R,

[1576] Fix | Delete

ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $p,

[1577] Fix | Delete

ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp $q

[1578] Fix | Delete

) {

[1579] Fix | Delete

$r = clone $R;

[1580] Fix | Delete

[1581] Fix | Delete

$r->X = self::fe_add($p->Y, $p->X);

[1582] Fix | Delete

$r->Y = self::fe_sub($p->Y, $p->X);

[1583] Fix | Delete

$r->Z = self::fe_mul($r->X, $q->yminusx);

[1584] Fix | Delete

$r->Y = self::fe_mul($r->Y, $q->yplusx);

[1585] Fix | Delete

$r->T = self::fe_mul($q->xy2d, $p->T);

[1586] Fix | Delete

$t0 = self::fe_add($p->Z, $p->Z);

[1587] Fix | Delete

$r->X = self::fe_sub($r->Z, $r->Y);

[1588] Fix | Delete

$r->Y = self::fe_add($r->Z, $r->Y);

[1589] Fix | Delete

$r->Z = self::fe_sub($t0, $r->T);

[1590] Fix | Delete

$r->T = self::fe_add($t0, $r->T);

[1591] Fix | Delete

[1592] Fix | Delete

return $r;

[1593] Fix | Delete

}

[1594] Fix | Delete

[1595] Fix | Delete

/**

[1596] Fix | Delete

* @internal You should not use this directly from another application

[1597] Fix | Delete

[1598] Fix | Delete

* @param ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1 $p

[1599] Fix | Delete

* @return ParagonIE_Sodium_Core32_Curve25519_Ge_P2

[1600] Fix | Delete

* @throws SodiumException

[1601] Fix | Delete

* @throws TypeError

[1602] Fix | Delete

[1603] Fix | Delete

public static function ge_p1p1_to_p2(ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1 $p)

[1604] Fix | Delete

{

[1605] Fix | Delete

$r = new ParagonIE_Sodium_Core32_Curve25519_Ge_P2();

[1606] Fix | Delete

$r->X = self::fe_mul($p->X, $p->T);

[1607] Fix | Delete

$r->Y = self::fe_mul($p->Y, $p->Z);

[1608] Fix | Delete

$r->Z = self::fe_mul($p->Z, $p->T);

[1609] Fix | Delete

return $r;

[1610] Fix | Delete

}

[1611] Fix | Delete

[1612] Fix | Delete

/**

[1613] Fix | Delete

* @internal You should not use this directly from another application

[1614] Fix | Delete

[1615] Fix | Delete

* @param ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1 $p

[1616] Fix | Delete

* @return ParagonIE_Sodium_Core32_Curve25519_Ge_P3

[1617] Fix | Delete

* @throws SodiumException

[1618] Fix | Delete

* @throws TypeError

[1619] Fix | Delete

[1620] Fix | Delete

public static function ge_p1p1_to_p3(ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1 $p)

[1621] Fix | Delete

{

[1622] Fix | Delete

$r = new ParagonIE_Sodium_Core32_Curve25519_Ge_P3();

[1623] Fix | Delete

$r->X = self::fe_mul($p->X, $p->T);

[1624] Fix | Delete

$r->Y = self::fe_mul($p->Y, $p->Z);

[1625] Fix | Delete

$r->Z = self::fe_mul($p->Z, $p->T);

[1626] Fix | Delete

$r->T = self::fe_mul($p->X, $p->Y);

[1627] Fix | Delete

return $r;

[1628] Fix | Delete

}

[1629] Fix | Delete

[1630] Fix | Delete

/**

[1631] Fix | Delete

* @internal You should not use this directly from another application

[1632] Fix | Delete

[1633] Fix | Delete

* @return ParagonIE_Sodium_Core32_Curve25519_Ge_P2

[1634] Fix | Delete

* @throws SodiumException

[1635] Fix | Delete

* @throws TypeError

[1636] Fix | Delete

[1637] Fix | Delete

public static function ge_p2_0()

[1638] Fix | Delete

{

[1639] Fix | Delete

return new ParagonIE_Sodium_Core32_Curve25519_Ge_P2(

[1640] Fix | Delete

self::fe_0(),

[1641] Fix | Delete

self::fe_1(),

[1642] Fix | Delete

self::fe_1()

[1643] Fix | Delete

);

[1644] Fix | Delete

}

[1645] Fix | Delete

[1646] Fix | Delete

/**

[1647] Fix | Delete

* @internal You should not use this directly from another application

[1648] Fix | Delete

[1649] Fix | Delete

* @param ParagonIE_Sodium_Core32_Curve25519_Ge_P2 $p

[1650] Fix | Delete

* @return ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1

[1651] Fix | Delete

* @throws SodiumException

[1652] Fix | Delete

* @throws TypeError

[1653] Fix | Delete

[1654] Fix | Delete

public static function ge_p2_dbl(ParagonIE_Sodium_Core32_Curve25519_Ge_P2 $p)

[1655] Fix | Delete

{

[1656] Fix | Delete

$r = new ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1();

[1657] Fix | Delete

[1658] Fix | Delete

$r->X = self::fe_sq($p->X);

[1659] Fix | Delete

$r->Z = self::fe_sq($p->Y);

[1660] Fix | Delete

$r->T = self::fe_sq2($p->Z);

[1661] Fix | Delete

$r->Y = self::fe_add($p->X, $p->Y);

[1662] Fix | Delete

$t0 = self::fe_sq($r->Y);

[1663] Fix | Delete

$r->Y = self::fe_add($r->Z, $r->X);

[1664] Fix | Delete

$r->Z = self::fe_sub($r->Z, $r->X);

[1665] Fix | Delete

$r->X = self::fe_sub($t0, $r->Y);

[1666] Fix | Delete

$r->T = self::fe_sub($r->T, $r->Z);

[1667] Fix | Delete

[1668] Fix | Delete

return $r;

[1669] Fix | Delete

}

[1670] Fix | Delete

[1671] Fix | Delete

/**

[1672] Fix | Delete

* @internal You should not use this directly from another application

[1673] Fix | Delete

[1674] Fix | Delete

* @return ParagonIE_Sodium_Core32_Curve25519_Ge_P3

[1675] Fix | Delete

* @throws SodiumException

[1676] Fix | Delete

* @throws TypeError

[1677] Fix | Delete

[1678] Fix | Delete

public static function ge_p3_0()

[1679] Fix | Delete

{

[1680] Fix | Delete

return new ParagonIE_Sodium_Core32_Curve25519_Ge_P3(

[1681] Fix | Delete

self::fe_0(),

[1682] Fix | Delete

self::fe_1(),

[1683] Fix | Delete

self::fe_1(),

[1684] Fix | Delete

self::fe_0()

[1685] Fix | Delete

);

[1686] Fix | Delete

}

[1687] Fix | Delete

[1688] Fix | Delete

/**

[1689] Fix | Delete

* @internal You should not use this directly from another application

[1690] Fix | Delete

[1691] Fix | Delete

* @param ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $p

[1692] Fix | Delete

* @return ParagonIE_Sodium_Core32_Curve25519_Ge_Cached

[1693] Fix | Delete

* @throws SodiumException

[1694] Fix | Delete

* @throws TypeError

[1695] Fix | Delete

[1696] Fix | Delete

public static function ge_p3_to_cached(ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $p)

[1697] Fix | Delete

{

[1698] Fix | Delete

static $d2 = null;

[1699] Fix | Delete

if ($d2 === null) {

[1700] Fix | Delete

$d2 = ParagonIE_Sodium_Core32_Curve25519_Fe::fromArray(

[1701] Fix | Delete

array(

[1702] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt(self::$d2[0]),

[1703] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt(self::$d2[1]),

[1704] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt(self::$d2[2]),

[1705] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt(self::$d2[3]),

[1706] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt(self::$d2[4]),

[1707] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt(self::$d2[5]),

[1708] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt(self::$d2[6]),

[1709] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt(self::$d2[7]),

[1710] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt(self::$d2[8]),

[1711] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt(self::$d2[9])

[1712] Fix | Delete

)

[1713] Fix | Delete

);

[1714] Fix | Delete

}

[1715] Fix | Delete

/** @var ParagonIE_Sodium_Core32_Curve25519_Fe $d2 */

[1716] Fix | Delete

$r = new ParagonIE_Sodium_Core32_Curve25519_Ge_Cached();

[1717] Fix | Delete

$r->YplusX = self::fe_add($p->Y, $p->X);

[1718] Fix | Delete

$r->YminusX = self::fe_sub($p->Y, $p->X);

[1719] Fix | Delete

$r->Z = self::fe_copy($p->Z);

[1720] Fix | Delete

$r->T2d = self::fe_mul($p->T, $d2);

[1721] Fix | Delete

return $r;

[1722] Fix | Delete

}

[1723] Fix | Delete

[1724] Fix | Delete

/**

[1725] Fix | Delete

* @internal You should not use this directly from another application

[1726] Fix | Delete

[1727] Fix | Delete

* @param ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $p

[1728] Fix | Delete

* @return ParagonIE_Sodium_Core32_Curve25519_Ge_P2

[1729] Fix | Delete

[1730] Fix | Delete

public static function ge_p3_to_p2(ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $p)

[1731] Fix | Delete

{

[1732] Fix | Delete

return new ParagonIE_Sodium_Core32_Curve25519_Ge_P2(

[1733] Fix | Delete

$p->X,

[1734] Fix | Delete

$p->Y,

[1735] Fix | Delete

$p->Z

[1736] Fix | Delete

);

[1737] Fix | Delete

}

[1738] Fix | Delete

[1739] Fix | Delete

/**

[1740] Fix | Delete

* @internal You should not use this directly from another application

[1741] Fix | Delete

[1742] Fix | Delete

* @param ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $h

[1743] Fix | Delete

* @return string

[1744] Fix | Delete

* @throws SodiumException

[1745] Fix | Delete

* @throws TypeError

[1746] Fix | Delete

[1747] Fix | Delete

public static function ge_p3_tobytes(ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $h)

[1748] Fix | Delete

{

[1749] Fix | Delete

$recip = self::fe_invert($h->Z);

[1750] Fix | Delete

$x = self::fe_mul($h->X, $recip);

[1751] Fix | Delete

$y = self::fe_mul($h->Y, $recip);

[1752] Fix | Delete

$s = self::fe_tobytes($y);

[1753] Fix | Delete

$s[31] = self::intToChr(

[1754] Fix | Delete

self::chrToInt($s[31]) ^ (self::fe_isnegative($x) << 7)

[1755] Fix | Delete

);

[1756] Fix | Delete

return $s;

[1757] Fix | Delete

}

[1758] Fix | Delete

[1759] Fix | Delete

/**

[1760] Fix | Delete

* @internal You should not use this directly from another application

[1761] Fix | Delete

[1762] Fix | Delete

* @param ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $p

[1763] Fix | Delete

* @return ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1

[1764] Fix | Delete

* @throws SodiumException

[1765] Fix | Delete

* @throws TypeError

[1766] Fix | Delete

[1767] Fix | Delete

public static function ge_p3_dbl(ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $p)

[1768] Fix | Delete

{

[1769] Fix | Delete

$q = self::ge_p3_to_p2($p);

[1770] Fix | Delete

return self::ge_p2_dbl($q);

[1771] Fix | Delete

}

[1772] Fix | Delete

[1773] Fix | Delete

/**

[1774] Fix | Delete

* @return ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp

[1775] Fix | Delete

* @throws SodiumException

[1776] Fix | Delete

* @throws TypeError

[1777] Fix | Delete

[1778] Fix | Delete

public static function ge_precomp_0()

[1779] Fix | Delete

{

[1780] Fix | Delete

return new ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp(

[1781] Fix | Delete

self::fe_1(),

[1782] Fix | Delete

self::fe_1(),

[1783] Fix | Delete

self::fe_0()

[1784] Fix | Delete

);

[1785] Fix | Delete

}

[1786] Fix | Delete

[1787] Fix | Delete

/**

[1788] Fix | Delete

* @internal You should not use this directly from another application

[1789] Fix | Delete

[1790] Fix | Delete

* @param int $b

[1791] Fix | Delete

* @param int $c

[1792] Fix | Delete

* @return int

[1793] Fix | Delete

* @psalm-suppress MixedReturnStatement

[1794] Fix | Delete

[1795] Fix | Delete

public static function equal($b, $c)

[1796] Fix | Delete

{

[1797] Fix | Delete

$b0 = $b & 0xffff;

[1798] Fix | Delete

$b1 = ($b >> 16) & 0xffff;

[1799] Fix | Delete

$c0 = $c & 0xffff;

[1800] Fix | Delete

$c1 = ($c >> 16) & 0xffff;

[1801] Fix | Delete

[1802] Fix | Delete

$d0 = (($b0 ^ $c0) - 1) >> 31;

[1803] Fix | Delete

$d1 = (($b1 ^ $c1) - 1) >> 31;

[1804] Fix | Delete

return ($d0 & $d1) & 1;

[1805] Fix | Delete

}

[1806] Fix | Delete

[1807] Fix | Delete

/**

[1808] Fix | Delete

* @internal You should not use this directly from another application

[1809] Fix | Delete

[1810] Fix | Delete

* @param string|int $char

[1811] Fix | Delete

* @return int (1 = yes, 0 = no)

[1812] Fix | Delete

* @throws SodiumException

[1813] Fix | Delete

* @throws TypeError

[1814] Fix | Delete

[1815] Fix | Delete

public static function negative($char)

[1816] Fix | Delete

{

[1817] Fix | Delete

if (is_int($char)) {

[1818] Fix | Delete

return $char < 0 ? 1 : 0;

[1819] Fix | Delete

}

[1820] Fix | Delete

/** @var string $char */

[1821] Fix | Delete

$x = self::chrToInt(self::substr($char, 0, 1));

[1822] Fix | Delete

return (int) ($x >> 31);

[1823] Fix | Delete

}

[1824] Fix | Delete

[1825] Fix | Delete

/**

[1826] Fix | Delete

* Conditional move

[1827] Fix | Delete

[1828] Fix | Delete

* @internal You should not use this directly from another application

[1829] Fix | Delete

[1830] Fix | Delete

* @param ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp $t

[1831] Fix | Delete

* @param ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp $u

[1832] Fix | Delete

* @param int $b

[1833] Fix | Delete

* @return ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp

[1834] Fix | Delete

* @throws SodiumException

[1835] Fix | Delete

* @throws TypeError

[1836] Fix | Delete

[1837] Fix | Delete

public static function cmov(

[1838] Fix | Delete

ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp $t,

[1839] Fix | Delete

ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp $u,

[1840] Fix | Delete

[1841] Fix | Delete

) {

[1842] Fix | Delete

if (!is_int($b)) {

[1843] Fix | Delete

throw new InvalidArgumentException('Expected an integer.');

[1844] Fix | Delete

}

[1845] Fix | Delete

return new ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp(

[1846] Fix | Delete

self::fe_cmov($t->yplusx, $u->yplusx, $b),

[1847] Fix | Delete

self::fe_cmov($t->yminusx, $u->yminusx, $b),

[1848] Fix | Delete

self::fe_cmov($t->xy2d, $u->xy2d, $b)

[1849] Fix | Delete

);

[1850] Fix | Delete

}

[1851] Fix | Delete

[1852] Fix | Delete

/**

[1853] Fix | Delete

* @internal You should not use this directly from another application

[1854] Fix | Delete

[1855] Fix | Delete

* @param int $pos

[1856] Fix | Delete

* @param int $b

[1857] Fix | Delete

* @return ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp

[1858] Fix | Delete

* @throws SodiumException

[1859] Fix | Delete

* @throws TypeError

[1860] Fix | Delete

* @psalm-suppress MixedArrayAccess

[1861] Fix | Delete

* @psalm-suppress MixedArrayOffset

[1862] Fix | Delete

* @psalm-suppress MixedArgument

[1863] Fix | Delete

[1864] Fix | Delete

public static function ge_select($pos = 0, $b = 0)

[1865] Fix | Delete

{

[1866] Fix | Delete

static $base = null;

[1867] Fix | Delete

if ($base === null) {

[1868] Fix | Delete

$base = array();

[1869] Fix | Delete

foreach (self::$base as $i => $bas) {

[1870] Fix | Delete

for ($j = 0; $j < 8; ++$j) {

[1871] Fix | Delete

$base[$i][$j] = new ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp(

[1872] Fix | Delete

ParagonIE_Sodium_Core32_Curve25519_Fe::fromArray(

[1873] Fix | Delete

array(

[1874] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][0][0]),

[1875] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][0][1]),

[1876] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][0][2]),

[1877] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][0][3]),

[1878] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][0][4]),

[1879] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][0][5]),

[1880] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][0][6]),

[1881] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][0][7]),

[1882] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][0][8]),

[1883] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][0][9])

[1884] Fix | Delete

)

[1885] Fix | Delete

[1886] Fix | Delete

ParagonIE_Sodium_Core32_Curve25519_Fe::fromArray(

[1887] Fix | Delete

array(

[1888] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][1][0]),

[1889] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][1][1]),

[1890] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][1][2]),

[1891] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][1][3]),

[1892] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][1][4]),

[1893] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][1][5]),

[1894] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][1][6]),

[1895] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][1][7]),

[1896] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][1][8]),

[1897] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][1][9])

[1898] Fix | Delete

)

[1899] Fix | Delete

[1900] Fix | Delete

ParagonIE_Sodium_Core32_Curve25519_Fe::fromArray(

[1901] Fix | Delete

array(

[1902] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][2][0]),

[1903] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][2][1]),

[1904] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][2][2]),

[1905] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][2][3]),

[1906] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][2][4]),

[1907] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][2][5]),

[1908] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][2][6]),

[1909] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][2][7]),

[1910] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][2][8]),

[1911] Fix | Delete

ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][2][9])

[1912] Fix | Delete

)

[1913] Fix | Delete

)

[1914] Fix | Delete

);

[1915] Fix | Delete

}

[1916] Fix | Delete

}

[1917] Fix | Delete

}

[1918] Fix | Delete

if (!is_int($pos)) {

[1919] Fix | Delete

throw new InvalidArgumentException('Position must be an integer');

[1920] Fix | Delete

}

[1921] Fix | Delete

if ($pos < 0 || $pos > 31) {

[1922] Fix | Delete

throw new RangeException('Position is out of range [0, 31]');

[1923] Fix | Delete

}

[1924] Fix | Delete

[1925] Fix | Delete

$bnegative = self::negative($b);

[1926] Fix | Delete

$babs = $b - (((-$bnegative) & $b) << 1);

[1927] Fix | Delete

[1928] Fix | Delete

$t = self::ge_precomp_0();

[1929] Fix | Delete

for ($i = 0; $i < 8; ++$i) {

[1930] Fix | Delete

$t = self::cmov(

[1931] Fix | Delete

$t,

[1932] Fix | Delete

$base[$pos][$i],

[1933] Fix | Delete

-self::equal($babs, $i + 1)

[1934] Fix | Delete

);

[1935] Fix | Delete

}

[1936] Fix | Delete

$minusT = new ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp(

[1937] Fix | Delete

self::fe_copy($t->yminusx),

[1938] Fix | Delete

self::fe_copy($t->yplusx),

[1939] Fix | Delete

self::fe_neg($t->xy2d)

[1940] Fix | Delete

);

[1941] Fix | Delete

return self::cmov($t, $minusT, -$bnegative);

[1942] Fix | Delete

}

[1943] Fix | Delete

[1944] Fix | Delete

/**

[1945] Fix | Delete

* Subtract two group elements.

[1946] Fix | Delete

[1947] Fix | Delete

* r = p - q

[1948] Fix | Delete

[1949] Fix | Delete

* @internal You should not use this directly from another application

[1950] Fix | Delete

[1951] Fix | Delete

* @param ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $p

[1952] Fix | Delete

* @param ParagonIE_Sodium_Core32_Curve25519_Ge_Cached $q

[1953] Fix | Delete

* @return ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1

[1954] Fix | Delete

* @throws SodiumException

[1955] Fix | Delete

* @throws TypeError

[1956] Fix | Delete

[1957] Fix | Delete

public static function ge_sub(

[1958] Fix | Delete

ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $p,

[1959] Fix | Delete

ParagonIE_Sodium_Core32_Curve25519_Ge_Cached $q

[1960] Fix | Delete

) {

[1961] Fix | Delete

$r = new ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1();

[1962] Fix | Delete

[1963] Fix | Delete

$r->X = self::fe_add($p->Y, $p->X);

[1964] Fix | Delete

$r->Y = self::fe_sub($p->Y, $p->X);

[1965] Fix | Delete

$r->Z = self::fe_mul($r->X, $q->YminusX);

[1966] Fix | Delete

$r->Y = self::fe_mul($r->Y, $q->YplusX);

[1967] Fix | Delete

$r->T = self::fe_mul($q->T2d, $p->T);

[1968] Fix | Delete

$r->X = self::fe_mul($p->Z, $q->Z);

[1969] Fix | Delete

$t0 = self::fe_add($r->X, $r->X);

[1970] Fix | Delete

$r->X = self::fe_sub($r->Z, $r->Y);

[1971] Fix | Delete

$r->Y = self::fe_add($r->Z, $r->Y);

[1972] Fix | Delete

$r->Z = self::fe_sub($t0, $r->T);

[1973] Fix | Delete

$r->T = self::fe_add($t0, $r->T);

[1974] Fix | Delete

[1975] Fix | Delete

return $r;

[1976] Fix | Delete

}

[1977] Fix | Delete

[1978] Fix | Delete

/**

[1979] Fix | Delete

* Convert a group element to a byte string.

[1980] Fix | Delete

[1981] Fix | Delete

* @param ParagonIE_Sodium_Core32_Curve25519_Ge_P2 $h

[1982] Fix | Delete

* @return string

[1983] Fix | Delete

* @throws SodiumException

[1984] Fix | Delete

* @throws TypeError

[1985] Fix | Delete

[1986] Fix | Delete

public static function ge_tobytes(ParagonIE_Sodium_Core32_Curve25519_Ge_P2 $h)

[1987] Fix | Delete

{

[1988] Fix | Delete

$recip = self::fe_invert($h->Z);

[1989] Fix | Delete

$x = self::fe_mul($h->X, $recip);

[1990] Fix | Delete

$y = self::fe_mul($h->Y, $recip);

[1991] Fix | Delete

$s = self::fe_tobytes($y);

[1992] Fix | Delete

$s[31] = self::intToChr(

[1993] Fix | Delete

self::chrToInt($s[31]) ^ (self::fe_isnegative($x) << 7)

[1994] Fix | Delete

);

[1995] Fix | Delete

return $s;

[1996] Fix | Delete

}

[1997] Fix | Delete

[1998] Fix | Delete

/**

[1999] Fix | Delete

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