ParagonIE_Sodium_Core_Curve25519::sc_muladd( string $a, string $b, string $c ): string

Parameters

$astring

$bstring

$cstring

Return

string

Uses · 5

• ParagonIE_Sodium_Core_Curve25519::load_3()
• ParagonIE_Sodium_Core_Curve25519::substr()
• ParagonIE_Sodium_Core_Curve25519::load_4()
• ParagonIE_Sodium_Core_Curve25519::mul()
• ParagonIE_Sodium_Core_Curve25519::intArrayToString()

Source

View on Trac ↗View on GitHub ↗

2084    public static function sc_muladd($a, $b, $c)2085    {2086        $a0 = 2097151 & self::load_3(self::substr($a, 0, 3));2087        $a1 = 2097151 & (self::load_4(self::substr($a, 2, 4)) >> 5);2088        $a2 = 2097151 & (self::load_3(self::substr($a, 5, 3)) >> 2);2089        $a3 = 2097151 & (self::load_4(self::substr($a, 7, 4)) >> 7);2090        $a4 = 2097151 & (self::load_4(self::substr($a, 10, 4)) >> 4);2091        $a5 = 2097151 & (self::load_3(self::substr($a, 13, 3)) >> 1);2092        $a6 = 2097151 & (self::load_4(self::substr($a, 15, 4)) >> 6);2093        $a7 = 2097151 & (self::load_3(self::substr($a, 18, 3)) >> 3);2094        $a8 = 2097151 & self::load_3(self::substr($a, 21, 3));2095        $a9 = 2097151 & (self::load_4(self::substr($a, 23, 4)) >> 5);2096        $a10 = 2097151 & (self::load_3(self::substr($a, 26, 3)) >> 2);2097        $a11 = (self::load_4(self::substr($a, 28, 4)) >> 7);2098 2099        $b0 = 2097151 & self::load_3(self::substr($b, 0, 3));2100        $b1 = 2097151 & (self::load_4(self::substr($b, 2, 4)) >> 5);2101        $b2 = 2097151 & (self::load_3(self::substr($b, 5, 3)) >> 2);2102        $b3 = 2097151 & (self::load_4(self::substr($b, 7, 4)) >> 7);2103        $b4 = 2097151 & (self::load_4(self::substr($b, 10, 4)) >> 4);2104        $b5 = 2097151 & (self::load_3(self::substr($b, 13, 3)) >> 1);2105        $b6 = 2097151 & (self::load_4(self::substr($b, 15, 4)) >> 6);2106        $b7 = 2097151 & (self::load_3(self::substr($b, 18, 3)) >> 3);2107        $b8 = 2097151 & self::load_3(self::substr($b, 21, 3));2108        $b9 = 2097151 & (self::load_4(self::substr($b, 23, 4)) >> 5);2109        $b10 = 2097151 & (self::load_3(self::substr($b, 26, 3)) >> 2);2110        $b11 = (self::load_4(self::substr($b, 28, 4)) >> 7);2111 2112        $c0 = 2097151 & self::load_3(self::substr($c, 0, 3));2113        $c1 = 2097151 & (self::load_4(self::substr($c, 2, 4)) >> 5);2114        $c2 = 2097151 & (self::load_3(self::substr($c, 5, 3)) >> 2);2115        $c3 = 2097151 & (self::load_4(self::substr($c, 7, 4)) >> 7);2116        $c4 = 2097151 & (self::load_4(self::substr($c, 10, 4)) >> 4);2117        $c5 = 2097151 & (self::load_3(self::substr($c, 13, 3)) >> 1);2118        $c6 = 2097151 & (self::load_4(self::substr($c, 15, 4)) >> 6);2119        $c7 = 2097151 & (self::load_3(self::substr($c, 18, 3)) >> 3);2120        $c8 = 2097151 & self::load_3(self::substr($c, 21, 3));2121        $c9 = 2097151 & (self::load_4(self::substr($c, 23, 4)) >> 5);2122        $c10 = 2097151 & (self::load_3(self::substr($c, 26, 3)) >> 2);2123        $c11 = (self::load_4(self::substr($c, 28, 4)) >> 7);2124 2125        /* Can't really avoid the pyramid here: */2126        $s0 = $c0 + self::mul($a0, $b0, 24);2127        $s1 = $c1 + self::mul($a0, $b1, 24) + self::mul($a1, $b0, 24);2128        $s2 = $c2 + self::mul($a0, $b2, 24) + self::mul($a1, $b1, 24) + self::mul($a2, $b0, 24);2129        $s3 = $c3 + self::mul($a0, $b3, 24) + self::mul($a1, $b2, 24) + self::mul($a2, $b1, 24) + self::mul($a3, $b0, 24);2130        $s4 = $c4 + self::mul($a0, $b4, 24) + self::mul($a1, $b3, 24) + self::mul($a2, $b2, 24) + self::mul($a3, $b1, 24) +2131               self::mul($a4, $b0, 24);2132        $s5 = $c5 + self::mul($a0, $b5, 24) + self::mul($a1, $b4, 24) + self::mul($a2, $b3, 24) + self::mul($a3, $b2, 24) +2133               self::mul($a4, $b1, 24) + self::mul($a5, $b0, 24);2134        $s6 = $c6 + self::mul($a0, $b6, 24) + self::mul($a1, $b5, 24) + self::mul($a2, $b4, 24) + self::mul($a3, $b3, 24) +2135               self::mul($a4, $b2, 24) + self::mul($a5, $b1, 24) + self::mul($a6, $b0, 24);2136        $s7 = $c7 + self::mul($a0, $b7, 24) + self::mul($a1, $b6, 24) + self::mul($a2, $b5, 24) + self::mul($a3, $b4, 24) +2137               self::mul($a4, $b3, 24) + self::mul($a5, $b2, 24) + self::mul($a6, $b1, 24) + self::mul($a7, $b0, 24);2138        $s8 = $c8 + self::mul($a0, $b8, 24) + self::mul($a1, $b7, 24) + self::mul($a2, $b6, 24) + self::mul($a3, $b5, 24) +2139               self::mul($a4, $b4, 24) + self::mul($a5, $b3, 24) + self::mul($a6, $b2, 24) + self::mul($a7, $b1, 24) +2140               self::mul($a8, $b0, 24);2141        $s9 = $c9 + self::mul($a0, $b9, 24) + self::mul($a1, $b8, 24) + self::mul($a2, $b7, 24) + self::mul($a3, $b6, 24) +2142               self::mul($a4, $b5, 24) + self::mul($a5, $b4, 24) + self::mul($a6, $b3, 24) + self::mul($a7, $b2, 24) +2143               self::mul($a8, $b1, 24) + self::mul($a9, $b0, 24);2144        $s10 = $c10 + self::mul($a0, $b10, 24) + self::mul($a1, $b9, 24) + self::mul($a2, $b8, 24) + self::mul($a3, $b7, 24) +2145               self::mul($a4, $b6, 24) + self::mul($a5, $b5, 24) + self::mul($a6, $b4, 24) + self::mul($a7, $b3, 24) +2146               self::mul($a8, $b2, 24) + self::mul($a9, $b1, 24) + self::mul($a10, $b0, 24);2147        $s11 = $c11 + self::mul($a0, $b11, 24) + self::mul($a1, $b10, 24) + self::mul($a2, $b9, 24) + self::mul($a3, $b8, 24) +2148               self::mul($a4, $b7, 24) + self::mul($a5, $b6, 24) + self::mul($a6, $b5, 24) + self::mul($a7, $b4, 24) +2149               self::mul($a8, $b3, 24) + self::mul($a9, $b2, 24) + self::mul($a10, $b1, 24) + self::mul($a11, $b0, 24);2150        $s12 = self::mul($a1, $b11, 24) + self::mul($a2, $b10, 24) + self::mul($a3, $b9, 24) + self::mul($a4, $b8, 24) +2151               self::mul($a5, $b7, 24) + self::mul($a6, $b6, 24) + self::mul($a7, $b5, 24) + self::mul($a8, $b4, 24) +2152               self::mul($a9, $b3, 24) + self::mul($a10, $b2, 24) + self::mul($a11, $b1, 24);2153        $s13 = self::mul($a2, $b11, 24) + self::mul($a3, $b10, 24) + self::mul($a4, $b9, 24) + self::mul($a5, $b8, 24) +2154               self::mul($a6, $b7, 24) + self::mul($a7, $b6, 24) + self::mul($a8, $b5, 24) + self::mul($a9, $b4, 24) +2155               self::mul($a10, $b3, 24) + self::mul($a11, $b2, 24);2156        $s14 = self::mul($a3, $b11, 24) + self::mul($a4, $b10, 24) + self::mul($a5, $b9, 24) + self::mul($a6, $b8, 24) +2157               self::mul($a7, $b7, 24) + self::mul($a8, $b6, 24) + self::mul($a9, $b5, 24) + self::mul($a10, $b4, 24) +2158               self::mul($a11, $b3, 24);2159        $s15 = self::mul($a4, $b11, 24) + self::mul($a5, $b10, 24) + self::mul($a6, $b9, 24) + self::mul($a7, $b8, 24) +2160               self::mul($a8, $b7, 24) + self::mul($a9, $b6, 24) + self::mul($a10, $b5, 24) + self::mul($a11, $b4, 24);2161        $s16 = self::mul($a5, $b11, 24) + self::mul($a6, $b10, 24) + self::mul($a7, $b9, 24) + self::mul($a8, $b8, 24) +2162               self::mul($a9, $b7, 24) + self::mul($a10, $b6, 24) + self::mul($a11, $b5, 24);2163        $s17 = self::mul($a6, $b11, 24) + self::mul($a7, $b10, 24) + self::mul($a8, $b9, 24) + self::mul($a9, $b8, 24) +

History

Unchanged from 6.7.7 through 7.1.0.

1. 6.7.7
2. 6.8.8
3. 6.9.7
4. 7.0.4
5. 7.1.0

Signature, return type and hooks compared across 5 parsed releases.

About this page

Parsed data

Generated from the wordpress-develop 7.0.4 tag, from src/wp-includes/sodium_compat/src/Core/Curve25519.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.

Corrections

Something wrong on this page? Report it and it gets fixed in the next regeneration.