PHP项目中libsodium封装 Halite

• 授权协议: GPLv3
• 开发语言: PHP
• 操作系统: 跨平台
• 软件首页: https://paragonie.com/project/halite
• 软件文档: https://github.com/paragonie/halite/blob/master/README.md
• 官方下载: https://github.com/paragonie/halite/archive/master.zip

软件介绍

Halite 是PHP项目中一个简单的libsodium封装包。Halite提供高级的加密接口，依靠其所有潜在的密码操作libsodium。

Halite 基本 API：

• Encryption

• Anonymous

• Authenticated

• Asymmetric\Crypto::seal(HiddenString, EncryptionPublicKey): string

• Asymmetric\Crypto::unseal(string, EncryptionSecretKey): HiddenString

• Asymmetric\Crypto::encrypt(HiddenString, EncryptionSecretKey, EncryptionPublicKey): string

• Asymmetric\Crypto::decrypt(string, EncryptionSecretKey, EncryptionPublicKey): HiddenString

• Symmetric\Crypto::encrypt(HiddenString, EncryptionKey): string

• Symmetric\Crypto::decrypt(string, EncryptionKey): HiddenString

• Symmetric

• Asymmetric

• Authentication

• Asymmetric\Crypto::sign(string, SignatureSecretKey): string

• Asymmetric\Crypto::verify(string, SignaturePublicKey, string): bool

• Symmetric\Crypto::authenticate(string, AuthenticationKey): string

• Symmetric\Crypto::verify(string, AuthenticationKey, string): bool

• Symmetric

• Asymmetric

示例1：加密解密消息

首先，生成一个key

<?php
use ParagonIE\Halite\KeyFactory;

$encKey = KeyFactory::generateEncryptionKey();
KeyFactory::save($encKey, '/path/outside/webroot/encryption.key');

然后，加密解密消息

<?php
use ParagonIE\Halite\HiddenString;
use ParagonIE\Halite\KeyFactory;
use ParagonIE\Halite\Symmetric\Crypto as Symmetric;

$encryptionKey = KeyFactory::loadEncryptionKey('/path/outside/webroot/encryption.key');

$message = new HiddenString('This is a confidential message for your eyes only.');
$ciphertext = Symmetric::encrypt($message, $encryptionKey);

$decrypted = Symmetric::decrypt($ciphertext, $encryptionKey);

var_dump($decrypted === $message); // bool(true)

示例2：用password-derived key 加密消息

<?php
use ParagonIE\Halite\HiddenString;
use ParagonIE\Halite\KeyFactory;
use ParagonIE\Halite\Symmetric\Crypto as Symmetric;

$passwd = new HiddenString('correct horse battery staple');
// Use random_bytes(16); to generate the salt:
$salt = "\xdd\x7b\x1e\x38\x75\x9f\x72\x86\x0a\xe9\xc8\x58\xf6\x16\x0d\x3b";

$encryptionKey = KeyFactory::deriveEncryptionKey($passwd, $salt);

$message = new HiddenString('This is a confidential message for your eyes only.');
$ciphertext = Symmetric::encrypt($message, $encryptionKey);
echo $ciphertext, "\n";

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