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ðŸ“ ..
ðŸ“„ BLAKE2b.php(21.8 KB)
ðŸ“ ChaCha20
ðŸ“„ ChaCha20.php(14.17 KB)
ðŸ“ Curve25519
ðŸ“„ Curve25519.php(129.86 KB)
ðŸ“„ Ed25519.php(15.37 KB)
ðŸ“„ HChaCha20.php(5.17 KB)
ðŸ“„ HSalsa20.php(6.78 KB)
ðŸ“„ Int32.php(24 KB)
ðŸ“„ Int64.php(30.44 KB)
ðŸ“ Poly1305
ðŸ“„ Poly1305.php(1.55 KB)
ðŸ“„ Salsa20.php(11.24 KB)
ðŸ“ SecretStream
ðŸ“„ SipHash.php(6.46 KB)
ðŸ“„ Util.php(209 B)
ðŸ“„ X25519.php(10.78 KB)
ðŸ“„ XChaCha20.php(2.4 KB)
ðŸ“„ XSalsa20.php(1.35 KB)

Editing: SipHash.php

<?php

if (class_exists('ParagonIE_Sodium_Core32_SipHash', false)) {
    return;
}

/**
 * Class ParagonIE_SodiumCompat_Core32_SipHash
 *
 * Only uses 32-bit arithmetic, while the original SipHash used 64-bit integers
 */
class ParagonIE_Sodium_Core32_SipHash extends ParagonIE_Sodium_Core32_Util
{
    /**
     * @internal You should not use this directly from another application
     *
     * @param array<int, ParagonIE_Sodium_Core32_Int64> $v
     * @return array<int, ParagonIE_Sodium_Core32_Int64>
     */
    public static function sipRound(array $v)
    {
        # v0 += v1;
        $v[0] = $v[0]->addInt64($v[1]);

# v1 = ROTL(v1, 13);
        $v[1] = $v[1]->rotateLeft(13);

#  v1 ^= v0;
        $v[1] = $v[1]->xorInt64($v[0]);

#  v0=ROTL(v0,32);
        $v[0] = $v[0]->rotateLeft(32);

# v2 += v3;
        $v[2] = $v[2]->addInt64($v[3]);

# v3=ROTL(v3,16);
        $v[3] = $v[3]->rotateLeft(16);

#  v3 ^= v2;
        $v[3] = $v[3]->xorInt64($v[2]);

# v0 += v3;
        $v[0] = $v[0]->addInt64($v[3]);

# v3=ROTL(v3,21);
        $v[3] = $v[3]->rotateLeft(21);

# v3 ^= v0;
        $v[3] = $v[3]->xorInt64($v[0]);

# v2 += v1;
        $v[2] = $v[2]->addInt64($v[1]);

# v1=ROTL(v1,17);
        $v[1] = $v[1]->rotateLeft(17);

#  v1 ^= v2;
        $v[1] = $v[1]->xorInt64($v[2]);

# v2=ROTL(v2,32)
        $v[2] = $v[2]->rotateLeft(32);

return $v;
    }

/**
     * @internal You should not use this directly from another application
     *
     * @param string $in
     * @param string $key
     * @return string
     * @throws SodiumException
     * @throws TypeError
     */
    public static function sipHash24($in, $key)
    {
        $inlen = self::strlen($in);

# /* "somepseudorandomlygeneratedbytes" */
        # u64 v0 = 0x736f6d6570736575ULL;
        # u64 v1 = 0x646f72616e646f6dULL;
        # u64 v2 = 0x6c7967656e657261ULL;
        # u64 v3 = 0x7465646279746573ULL;
        $v = array(
            new ParagonIE_Sodium_Core32_Int64(
                array(0x736f, 0x6d65, 0x7073, 0x6575)
            ),
            new ParagonIE_Sodium_Core32_Int64(
                array(0x646f, 0x7261, 0x6e64, 0x6f6d)
            ),
            new ParagonIE_Sodium_Core32_Int64(
                array(0x6c79, 0x6765, 0x6e65, 0x7261)
            ),
            new ParagonIE_Sodium_Core32_Int64(
                array(0x7465, 0x6462, 0x7974, 0x6573)
            )
        );

# u64 k0 = LOAD64_LE( k );
        # u64 k1 = LOAD64_LE( k + 8 );
        $k = array(
            ParagonIE_Sodium_Core32_Int64::fromReverseString(
                self::substr($key, 0, 8)
            ),
            ParagonIE_Sodium_Core32_Int64::fromReverseString(
                self::substr($key, 8, 8)
            )
        );

# b = ( ( u64 )inlen ) << 56;
        $b = new ParagonIE_Sodium_Core32_Int64(
            array(($inlen << 8) & 0xffff, 0, 0, 0)
        );

# v3 ^= k1;
        $v[3] = $v[3]->xorInt64($k[1]);
        # v2 ^= k0;
        $v[2] = $v[2]->xorInt64($k[0]);
        # v1 ^= k1;
        $v[1] = $v[1]->xorInt64($k[1]);
        # v0 ^= k0;
        $v[0] = $v[0]->xorInt64($k[0]);

$left = $inlen;
        # for ( ; in != end; in += 8 )
        while ($left >= 8) {
            # m = LOAD64_LE( in );
            $m = ParagonIE_Sodium_Core32_Int64::fromReverseString(
                self::substr($in, 0, 8)
            );

# v3 ^= m;
            $v[3] = $v[3]->xorInt64($m);

# SIPROUND;
            # SIPROUND;
            $v = self::sipRound($v);
            $v = self::sipRound($v);

# v0 ^= m;
            $v[0] = $v[0]->xorInt64($m);

$in = self::substr($in, 8);
            $left -= 8;
        }

# switch( left )
        #  {
        #     case 7: b |= ( ( u64 )in[ 6] )  << 48;
        #     case 6: b |= ( ( u64 )in[ 5] )  << 40;
        #     case 5: b |= ( ( u64 )in[ 4] )  << 32;
        #     case 4: b |= ( ( u64 )in[ 3] )  << 24;
        #     case 3: b |= ( ( u64 )in[ 2] )  << 16;
        #     case 2: b |= ( ( u64 )in[ 1] )  <<  8;
        #     case 1: b |= ( ( u64 )in[ 0] ); break;
        #     case 0: break;
        # }
        switch ($left) {
            case 7:
                $b = $b->orInt64(
                    ParagonIE_Sodium_Core32_Int64::fromInts(
                        0, self::chrToInt($in[6]) << 16
                    )
                );
            case 6:
                $b = $b->orInt64(
                    ParagonIE_Sodium_Core32_Int64::fromInts(
                        0, self::chrToInt($in[5]) << 8
                    )
                );
            case 5:
                $b = $b->orInt64(
                    ParagonIE_Sodium_Core32_Int64::fromInts(
                        0, self::chrToInt($in[4])
                    )
                );
            case 4:
                $b = $b->orInt64(
                    ParagonIE_Sodium_Core32_Int64::fromInts(
                        self::chrToInt($in[3]) << 24, 0
                    )
                );
            case 3:
                $b = $b->orInt64(
                    ParagonIE_Sodium_Core32_Int64::fromInts(
                        self::chrToInt($in[2]) << 16, 0
                    )
                );
            case 2:
                $b = $b->orInt64(
                    ParagonIE_Sodium_Core32_Int64::fromInts(
                        self::chrToInt($in[1]) << 8, 0
                    )
                );
            case 1:
                $b = $b->orInt64(
                    ParagonIE_Sodium_Core32_Int64::fromInts(
                        self::chrToInt($in[0]), 0
                    )
                );
            case 0:
                break;
        }

# v3 ^= b;
        $v[3] = $v[3]->xorInt64($b);

# SIPROUND;
        # SIPROUND;
        $v = self::sipRound($v);
        $v = self::sipRound($v);

# v0 ^= b;
        $v[0] = $v[0]->xorInt64($b);

// Flip the lower 8 bits of v2 which is ($v[4], $v[5]) in our implementation
        # v2 ^= 0xff;
        $v[2]->limbs[3] ^= 0xff;

# SIPROUND;
        # SIPROUND;
        # SIPROUND;
        # SIPROUND;
        $v = self::sipRound($v);
        $v = self::sipRound($v);
        $v = self::sipRound($v);
        $v = self::sipRound($v);

# b = v0 ^ v1 ^ v2 ^ v3;
        # STORE64_LE( out, b );
        return $v[0]
            ->xorInt64($v[1])
            ->xorInt64($v[2])
            ->xorInt64($v[3])
            ->toReverseString();
    }
}

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