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Deprecated: str_replace(): Passing null to parameter #2 ($replace) of type array|string is deprecated in /home/sportsfever/public_html/filemanger/function.php on line 93
• /home/sportsfe.../httpdocs/clone/wp-inclu.../sodium_c.../src/Core32/ChaCha20
• File: Ctx.php
<?php
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if (class_exists('ParagonIE_Sodium_Core_ChaCha20_Ctx', false)) {
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return;
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}
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/**
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* Class ParagonIE_Sodium_Core32_ChaCha20_Ctx
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*/
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class ParagonIE_Sodium_Core32_ChaCha20_Ctx extends ParagonIE_Sodium_Core32_Util implements ArrayAccess
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{
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/**
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* @var SplFixedArray internally, <int, ParagonIE_Sodium_Core32_Int32>
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*/
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protected $container;
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/**
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* ParagonIE_Sodium_Core_ChaCha20_Ctx constructor.
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*
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* @internal You should not use this directly from another application
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*
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* @param string $key ChaCha20 key.
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* @param string $iv Initialization Vector (a.k.a. nonce).
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* @param string $counter The initial counter value.
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* Defaults to 8 0x00 bytes.
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* @throws InvalidArgumentException
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* @throws SodiumException
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* @throws TypeError
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*/
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public function __construct($key = '', $iv = '', $counter = '')
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{
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if (self::strlen($key) !== 32) {
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throw new InvalidArgumentException('ChaCha20 expects a 256-bit key.');
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}
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if (self::strlen($iv) !== 8) {
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throw new InvalidArgumentException('ChaCha20 expects a 64-bit nonce.');
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}
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$this->container = new SplFixedArray(16);
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/* "expand 32-byte k" as per ChaCha20 spec */
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$this->container[0] = new ParagonIE_Sodium_Core32_Int32(array(0x6170, 0x7865));
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$this->container[1] = new ParagonIE_Sodium_Core32_Int32(array(0x3320, 0x646e));
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$this->container[2] = new ParagonIE_Sodium_Core32_Int32(array(0x7962, 0x2d32));
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$this->container[3] = new ParagonIE_Sodium_Core32_Int32(array(0x6b20, 0x6574));
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$this->container[4] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 0, 4));
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$this->container[5] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 4, 4));
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$this->container[6] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 8, 4));
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$this->container[7] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 12, 4));
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$this->container[8] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 16, 4));
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$this->container[9] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 20, 4));
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$this->container[10] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 24, 4));
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$this->container[11] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 28, 4));
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if (empty($counter)) {
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$this->container[12] = new ParagonIE_Sodium_Core32_Int32();
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$this->container[13] = new ParagonIE_Sodium_Core32_Int32();
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} else {
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$this->container[12] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($counter, 0, 4));
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$this->container[13] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($counter, 4, 4));
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}
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$this->container[14] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($iv, 0, 4));
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$this->container[15] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($iv, 4, 4));
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}
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/**
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* @internal You should not use this directly from another application
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*
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* @param int $offset
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* @param int|ParagonIE_Sodium_Core32_Int32 $value
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* @return void
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*/
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#[ReturnTypeWillChange]
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public function offsetSet($offset, $value)
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{
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if (!is_int($offset)) {
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throw new InvalidArgumentException('Expected an integer');
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}
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if ($value instanceof ParagonIE_Sodium_Core32_Int32) {
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/*
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} elseif (is_int($value)) {
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$value = ParagonIE_Sodium_Core32_Int32::fromInt($value);
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*/
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} else {
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throw new InvalidArgumentException('Expected an integer');
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}
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$this->container[$offset] = $value;
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}
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/**
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* @internal You should not use this directly from another application
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*
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* @param int $offset
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* @return bool
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* @psalm-suppress MixedArrayOffset
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*/
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#[ReturnTypeWillChange]
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public function offsetExists($offset)
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{
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return isset($this->container[$offset]);
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}
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/**
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* @internal You should not use this directly from another application
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*
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* @param int $offset
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* @return void
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* @psalm-suppress MixedArrayOffset
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*/
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#[ReturnTypeWillChange]
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public function offsetUnset($offset)
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{
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unset($this->container[$offset]);
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}
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/**
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* @internal You should not use this directly from another application
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*
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* @param int $offset
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* @return mixed|null
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* @psalm-suppress MixedArrayOffset
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*/
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#[ReturnTypeWillChange]
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public function offsetGet($offset)
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{
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return isset($this->container[$offset])
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? $this->container[$offset]
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: null;
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}
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}
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Function