Encryption and decryption with PHP.

使用PHP进行加密和解密。

The document is decrypted using the decryption key.

解密密钥会被用来对文档进行解密。

Decryptor is the main object in the decryption process.

Decryptor是解密过程中的主要对象。

The same key is used for both encryption and decryption.

加密和解密使用相同的密钥。

This is the trail that needs to be followed for decryption.

这是解密所需遵循的轨迹。