File: src/CryptographyKeys/SharedEncryptionKey.php

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File: src/CryptographyKeys/SharedEncryptionKey.php
Role: Class source
Content type: text/plain
Description: Class source
Class: sapient
Add a security layer to server to server requests
Author: By
Last change:
Date: 3 years ago
Size: 868 bytes
 

Contents

Class file image Download
<?php
declare(strict_types=1);
namespace
ParagonIE\Sapient\CryptographyKeys;

use
ParagonIE\Sapient\CryptographyKey;

/**
 * Class SharedEncryptionKey
 * @package ParagonIE\Sapient
 */
class SharedEncryptionKey extends CryptographyKey
{
   
/**
     * SharedEncryptionKey constructor.
     * @param string $key
     * @throws \RangeException
     */
   
public function __construct(string $key)
    {
        if (\
ParagonIE_Sodium_Core_Util::strlen($key) !== SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES) {
            throw new \
RangeException('Key is not the correct size');
        }
       
$this->key = $key;
    }

   
/**
     * @return SharedEncryptionKey
     */
   
public static function generate(): SharedEncryptionKey
   
{
        return new
SharedEncryptionKey(
            \
random_bytes(SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES)
        );
    }
}


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