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функция не описана

ParagonIE_Sodium_Core32_ChaCha20::encryptBytes() public WP 1.0

Это метод класса: ParagonIE_Sodium_Core32_ChaCha20{}

Хуков нет.

Возвращает

Строку.

Использование

$result = ParagonIE_Sodium_Core32_ChaCha20::encryptBytes(;
$ctx(ParagonIE_Sodium_Core32_ChaCha20_Ctx) (обязательный)
$message(строка) (обязательный)

Код ParagonIE_Sodium_Core32_ChaCha20::encryptBytes() WP 5.5.1

<?php
public static function encryptBytes(
    ParagonIE_Sodium_Core32_ChaCha20_Ctx $ctx,
    $message = ''
) {
    $bytes = self::strlen($message);

    /** @var ParagonIE_Sodium_Core32_Int32 $x0 */
    /** @var ParagonIE_Sodium_Core32_Int32 $x1 */
    /** @var ParagonIE_Sodium_Core32_Int32 $x2 */
    /** @var ParagonIE_Sodium_Core32_Int32 $x3 */
    /** @var ParagonIE_Sodium_Core32_Int32 $x4 */
    /** @var ParagonIE_Sodium_Core32_Int32 $x5 */
    /** @var ParagonIE_Sodium_Core32_Int32 $x6 */
    /** @var ParagonIE_Sodium_Core32_Int32 $x7 */
    /** @var ParagonIE_Sodium_Core32_Int32 $x8 */
    /** @var ParagonIE_Sodium_Core32_Int32 $x9 */
    /** @var ParagonIE_Sodium_Core32_Int32 $x10 */
    /** @var ParagonIE_Sodium_Core32_Int32 $x11 */
    /** @var ParagonIE_Sodium_Core32_Int32 $x12 */
    /** @var ParagonIE_Sodium_Core32_Int32 $x13 */
    /** @var ParagonIE_Sodium_Core32_Int32 $x14 */
    /** @var ParagonIE_Sodium_Core32_Int32 $x15 */

    /*
    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];
    */
    /** @var ParagonIE_Sodium_Core32_Int32 $j0 */
    $j0  = $ctx[0];
    /** @var ParagonIE_Sodium_Core32_Int32 $j1 */
    $j1  = $ctx[1];
    /** @var ParagonIE_Sodium_Core32_Int32 $j2 */
    $j2  = $ctx[2];
    /** @var ParagonIE_Sodium_Core32_Int32 $j3 */
    $j3  = $ctx[3];
    /** @var ParagonIE_Sodium_Core32_Int32 $j4 */
    $j4  = $ctx[4];
    /** @var ParagonIE_Sodium_Core32_Int32 $j5 */
    $j5  = $ctx[5];
    /** @var ParagonIE_Sodium_Core32_Int32 $j6 */
    $j6  = $ctx[6];
    /** @var ParagonIE_Sodium_Core32_Int32 $j7 */
    $j7  = $ctx[7];
    /** @var ParagonIE_Sodium_Core32_Int32 $j8 */
    $j8  = $ctx[8];
    /** @var ParagonIE_Sodium_Core32_Int32 $j9 */
    $j9  = $ctx[9];
    /** @var ParagonIE_Sodium_Core32_Int32 $j10 */
    $j10 = $ctx[10];
    /** @var ParagonIE_Sodium_Core32_Int32 $j11 */
    $j11 = $ctx[11];
    /** @var ParagonIE_Sodium_Core32_Int32 $j12 */
    $j12 = $ctx[12];
    /** @var ParagonIE_Sodium_Core32_Int32 $j13 */
    $j13 = $ctx[13];
    /** @var ParagonIE_Sodium_Core32_Int32 $j14 */
    $j14 = $ctx[14];
    /** @var ParagonIE_Sodium_Core32_Int32 $j15 */
    $j15 = $ctx[15];

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

        $x0 =  clone $j0;
        $x1 =  clone $j1;
        $x2 =  clone $j2;
        $x3 =  clone $j3;
        $x4 =  clone $j4;
        $x5 =  clone $j5;
        $x6 =  clone $j6;
        $x7 =  clone $j7;
        $x8 =  clone $j8;
        $x9 =  clone $j9;
        $x10 = clone $j10;
        $x11 = clone $j11;
        $x12 = clone $j12;
        $x13 = clone $j13;
        $x14 = clone $j14;
        $x15 = clone $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);
        */
        $x0 = $x0->addInt32($j0);
        $x1 = $x1->addInt32($j1);
        $x2 = $x2->addInt32($j2);
        $x3 = $x3->addInt32($j3);
        $x4 = $x4->addInt32($j4);
        $x5 = $x5->addInt32($j5);
        $x6 = $x6->addInt32($j6);
        $x7 = $x7->addInt32($j7);
        $x8 = $x8->addInt32($j8);
        $x9 = $x9->addInt32($j9);
        $x10 = $x10->addInt32($j10);
        $x11 = $x11->addInt32($j11);
        $x12 = $x12->addInt32($j12);
        $x13 = $x13->addInt32($j13);
        $x14 = $x14->addInt32($j14);
        $x15 = $x15->addInt32($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  =  $x0->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message,  0, 4)));
        $x1  =  $x1->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message,  4, 4)));
        $x2  =  $x2->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message,  8, 4)));
        $x3  =  $x3->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 12, 4)));
        $x4  =  $x4->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 16, 4)));
        $x5  =  $x5->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 20, 4)));
        $x6  =  $x6->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 24, 4)));
        $x7  =  $x7->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 28, 4)));
        $x8  =  $x8->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 32, 4)));
        $x9  =  $x9->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 36, 4)));
        $x10 = $x10->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 40, 4)));
        $x11 = $x11->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 44, 4)));
        $x12 = $x12->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 48, 4)));
        $x13 = $x13->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 52, 4)));
        $x14 = $x14->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 56, 4)));
        $x15 = $x15->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 60, 4)));

        /*
            j12 = PLUSONE(j12);
            if (!j12) {
                j13 = PLUSONE(j13);
            }
         */
        /** @var ParagonIE_Sodium_Core32_Int32 $j12 */
        $j12 = $j12->addInt(1);
        if ($j12->limbs[0] === 0 && $j12->limbs[1] === 0) {
            $j13 = $j13->addInt(1);
        }

        /*
        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 = $x0->toReverseString() .
            $x1->toReverseString() .
            $x2->toReverseString() .
            $x3->toReverseString() .
            $x4->toReverseString() .
            $x5->toReverseString() .
            $x6->toReverseString() .
            $x7->toReverseString() .
            $x8->toReverseString() .
            $x9->toReverseString() .
            $x10->toReverseString() .
            $x11->toReverseString() .
            $x12->toReverseString() .
            $x13->toReverseString() .
            $x14->toReverseString() .
            $x15->toReverseString();

        /* 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;
}