What method is used to encrypt Ruby code?

There are multiple encryption methods for Ruby code, here are some commonly used ones:

1. Utilizing Ruby’s built-in encryption library: Ruby comes with various built-in encryption libraries such as OpenSSL, which can be used for encrypting and decrypting operations. The AES encryption algorithm from the OpenSSL library can be used to encrypt Ruby code.
2. Utilizing Ruby’s encryption algorithm libraries: Ruby offers several third-party encryption algorithm libraries such as bcrypt, scrypt, etc, that can be used to encrypt Ruby code for added security. These libraries provide powerful encryption algorithms to safeguard the security of Ruby code.
3. There are obfuscation tools available for Ruby which can make the code difficult to understand and analyze by renaming variables, deleting unnecessary code, and making other changes to the code structure and logic, increasing its complexity and therefore improving its security.

Please be aware that encryption can only enhance the security of code, but it cannot guarantee its security completely. Those interested in protecting the integrity and security of code should consider using other methods such as code signing, access control, etc.