WordPress как на ладони
Недорогой хостинг для сайтов на WordPress: wordpress.jino.ru Самая быстрая Тема-конструктор для WordPress
функция не описана

ParagonIE_Sodium_Core_ChaCha20::encryptBytes() public WP 1.0

Это метод класса: ParagonIE_Sodium_Core_ChaCha20{}

Хуков нет.

Возвращает

Строку.

Использование

$result = ParagonIE_Sodium_Core_ChaCha20::encryptBytes(;
$ctx(ParagonIE_Sodium_Core_ChaCha20_Ctx) (обязательный)
$message(строка) (обязательный)

Код ParagonIE_Sodium_Core_ChaCha20::encryptBytes() WP 5.5.1

<?php
public static function encryptBytes(
    ParagonIE_Sodium_Core_ChaCha20_Ctx $ctx,
    $message = ''
) {
    $bytes = self::strlen($message);

    /*
    j0 = ctx->input[0];
    j1 = ctx->input[1];
    j2 = ctx->input[2];
    j3 = ctx->input[3];
    j4 = ctx->input[4];
    j5 = ctx->input[5];
    j6 = ctx->input[6];
    j7 = ctx->input[7];
    j8 = ctx->input[8];
    j9 = ctx->input[9];
    j10 = ctx->input[10];
    j11 = ctx->input[11];
    j12 = ctx->input[12];
    j13 = ctx->input[13];
    j14 = ctx->input[14];
    j15 = ctx->input[15];
    */
    $j0  = (int) $ctx[0];
    $j1  = (int) $ctx[1];
    $j2  = (int) $ctx[2];
    $j3  = (int) $ctx[3];
    $j4  = (int) $ctx[4];
    $j5  = (int) $ctx[5];
    $j6  = (int) $ctx[6];
    $j7  = (int) $ctx[7];
    $j8  = (int) $ctx[8];
    $j9  = (int) $ctx[9];
    $j10 = (int) $ctx[10];
    $j11 = (int) $ctx[11];
    $j12 = (int) $ctx[12];
    $j13 = (int) $ctx[13];
    $j14 = (int) $ctx[14];
    $j15 = (int) $ctx[15];

    $c = '';
    for (;;) {
        if ($bytes < 64) {
            $message .= str_repeat("\x00", 64 - $bytes);
        }

        $x0 =  (int) $j0;
        $x1 =  (int) $j1;
        $x2 =  (int) $j2;
        $x3 =  (int) $j3;
        $x4 =  (int) $j4;
        $x5 =  (int) $j5;
        $x6 =  (int) $j6;
        $x7 =  (int) $j7;
        $x8 =  (int) $j8;
        $x9 =  (int) $j9;
        $x10 = (int) $j10;
        $x11 = (int) $j11;
        $x12 = (int) $j12;
        $x13 = (int) $j13;
        $x14 = (int) $j14;
        $x15 = (int) $j15;

        # for (i = 20; i > 0; i -= 2) {
        for ($i = 20; $i > 0; $i -= 2) {
            # QUARTERROUND( x0,  x4,  x8,  x12)
            list($x0, $x4, $x8, $x12) = self::quarterRound($x0, $x4, $x8, $x12);

            # QUARTERROUND( x1,  x5,  x9,  x13)
            list($x1, $x5, $x9, $x13) = self::quarterRound($x1, $x5, $x9, $x13);

            # QUARTERROUND( x2,  x6,  x10,  x14)
            list($x2, $x6, $x10, $x14) = self::quarterRound($x2, $x6, $x10, $x14);

            # QUARTERROUND( x3,  x7,  x11,  x15)
            list($x3, $x7, $x11, $x15) = self::quarterRound($x3, $x7, $x11, $x15);

            # QUARTERROUND( x0,  x5,  x10,  x15)
            list($x0, $x5, $x10, $x15) = self::quarterRound($x0, $x5, $x10, $x15);

            # QUARTERROUND( x1,  x6,  x11,  x12)
            list($x1, $x6, $x11, $x12) = self::quarterRound($x1, $x6, $x11, $x12);

            # QUARTERROUND( x2,  x7,  x8,  x13)
            list($x2, $x7, $x8, $x13) = self::quarterRound($x2, $x7, $x8, $x13);

            # QUARTERROUND( x3,  x4,  x9,  x14)
            list($x3, $x4, $x9, $x14) = self::quarterRound($x3, $x4, $x9, $x14);
        }
        /*
        x0 = PLUS(x0, j0);
        x1 = PLUS(x1, j1);
        x2 = PLUS(x2, j2);
        x3 = PLUS(x3, j3);
        x4 = PLUS(x4, j4);
        x5 = PLUS(x5, j5);
        x6 = PLUS(x6, j6);
        x7 = PLUS(x7, j7);
        x8 = PLUS(x8, j8);
        x9 = PLUS(x9, j9);
        x10 = PLUS(x10, j10);
        x11 = PLUS(x11, j11);
        x12 = PLUS(x12, j12);
        x13 = PLUS(x13, j13);
        x14 = PLUS(x14, j14);
        x15 = PLUS(x15, j15);
        */
        /** @var int $x0 */
        $x0  = ($x0 & 0xffffffff) + $j0;
        /** @var int $x1 */
        $x1  = ($x1 & 0xffffffff) + $j1;
        /** @var int $x2 */
        $x2  = ($x2 & 0xffffffff) + $j2;
        /** @var int $x3 */
        $x3  = ($x3 & 0xffffffff) + $j3;
        /** @var int $x4 */
        $x4  = ($x4 & 0xffffffff) + $j4;
        /** @var int $x5 */
        $x5  = ($x5 & 0xffffffff) + $j5;
        /** @var int $x6 */
        $x6  = ($x6 & 0xffffffff) + $j6;
        /** @var int $x7 */
        $x7  = ($x7 & 0xffffffff) + $j7;
        /** @var int $x8 */
        $x8  = ($x8 & 0xffffffff) + $j8;
        /** @var int $x9 */
        $x9  = ($x9 & 0xffffffff) + $j9;
        /** @var int $x10 */
        $x10 = ($x10 & 0xffffffff) + $j10;
        /** @var int $x11 */
        $x11 = ($x11 & 0xffffffff) + $j11;
        /** @var int $x12 */
        $x12 = ($x12 & 0xffffffff) + $j12;
        /** @var int $x13 */
        $x13 = ($x13 & 0xffffffff) + $j13;
        /** @var int $x14 */
        $x14 = ($x14 & 0xffffffff) + $j14;
        /** @var int $x15 */
        $x15 = ($x15 & 0xffffffff) + $j15;

        /*
        x0 = XOR(x0, LOAD32_LE(m + 0));
        x1 = XOR(x1, LOAD32_LE(m + 4));
        x2 = XOR(x2, LOAD32_LE(m + 8));
        x3 = XOR(x3, LOAD32_LE(m + 12));
        x4 = XOR(x4, LOAD32_LE(m + 16));
        x5 = XOR(x5, LOAD32_LE(m + 20));
        x6 = XOR(x6, LOAD32_LE(m + 24));
        x7 = XOR(x7, LOAD32_LE(m + 28));
        x8 = XOR(x8, LOAD32_LE(m + 32));
        x9 = XOR(x9, LOAD32_LE(m + 36));
        x10 = XOR(x10, LOAD32_LE(m + 40));
        x11 = XOR(x11, LOAD32_LE(m + 44));
        x12 = XOR(x12, LOAD32_LE(m + 48));
        x13 = XOR(x13, LOAD32_LE(m + 52));
        x14 = XOR(x14, LOAD32_LE(m + 56));
        x15 = XOR(x15, LOAD32_LE(m + 60));
        */
        $x0  ^= self::load_4(self::substr($message, 0, 4));
        $x1  ^= self::load_4(self::substr($message, 4, 4));
        $x2  ^= self::load_4(self::substr($message, 8, 4));
        $x3  ^= self::load_4(self::substr($message, 12, 4));
        $x4  ^= self::load_4(self::substr($message, 16, 4));
        $x5  ^= self::load_4(self::substr($message, 20, 4));
        $x6  ^= self::load_4(self::substr($message, 24, 4));
        $x7  ^= self::load_4(self::substr($message, 28, 4));
        $x8  ^= self::load_4(self::substr($message, 32, 4));
        $x9  ^= self::load_4(self::substr($message, 36, 4));
        $x10 ^= self::load_4(self::substr($message, 40, 4));
        $x11 ^= self::load_4(self::substr($message, 44, 4));
        $x12 ^= self::load_4(self::substr($message, 48, 4));
        $x13 ^= self::load_4(self::substr($message, 52, 4));
        $x14 ^= self::load_4(self::substr($message, 56, 4));
        $x15 ^= self::load_4(self::substr($message, 60, 4));

        /*
            j12 = PLUSONE(j12);
            if (!j12) {
                j13 = PLUSONE(j13);
            }
         */
        ++$j12;
        if ($j12 & 0xf0000000) {
            throw new SodiumException('Overflow');
        }

        /*
        STORE32_LE(c + 0, x0);
        STORE32_LE(c + 4, x1);
        STORE32_LE(c + 8, x2);
        STORE32_LE(c + 12, x3);
        STORE32_LE(c + 16, x4);
        STORE32_LE(c + 20, x5);
        STORE32_LE(c + 24, x6);
        STORE32_LE(c + 28, x7);
        STORE32_LE(c + 32, x8);
        STORE32_LE(c + 36, x9);
        STORE32_LE(c + 40, x10);
        STORE32_LE(c + 44, x11);
        STORE32_LE(c + 48, x12);
        STORE32_LE(c + 52, x13);
        STORE32_LE(c + 56, x14);
        STORE32_LE(c + 60, x15);
        */
        $block = self::store32_le((int) ($x0  & 0xffffffff)) .
             self::store32_le((int) ($x1  & 0xffffffff)) .
             self::store32_le((int) ($x2  & 0xffffffff)) .
             self::store32_le((int) ($x3  & 0xffffffff)) .
             self::store32_le((int) ($x4  & 0xffffffff)) .
             self::store32_le((int) ($x5  & 0xffffffff)) .
             self::store32_le((int) ($x6  & 0xffffffff)) .
             self::store32_le((int) ($x7  & 0xffffffff)) .
             self::store32_le((int) ($x8  & 0xffffffff)) .
             self::store32_le((int) ($x9  & 0xffffffff)) .
             self::store32_le((int) ($x10 & 0xffffffff)) .
             self::store32_le((int) ($x11 & 0xffffffff)) .
             self::store32_le((int) ($x12 & 0xffffffff)) .
             self::store32_le((int) ($x13 & 0xffffffff)) .
             self::store32_le((int) ($x14 & 0xffffffff)) .
             self::store32_le((int) ($x15 & 0xffffffff));

        /* Partial block */
        if ($bytes < 64) {
            $c .= self::substr($block, 0, $bytes);
            break;
        }

        /* Full block */
        $c .= $block;
        $bytes -= 64;
        if ($bytes <= 0) {
            break;
        }
        $message = self::substr($message, 64);
    }
    /* end for(;;) loop */

    $ctx[12] = $j12;
    $ctx[13] = $j13;
    return $c;
}