Codeigniter 4 encryption

The Encryption Class provides two-way data encryption. It is encrypted using the Mcrypt library.

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The Encryption Class requires the Mcrypt extension to run.

Setting your Key

A key is a piece of information that controls the cryptographic process and permits an encrypted string to be decoded. In fact, the key you chose will provide the only means to decode data that was encrypted with that key, so not only must you choose the key carefully, you must never change it if you intend use it for persistent data.

It goes without saying that you should guard your key carefully.

Should someone gain access to your key, the data will be easily decoded. If your server is not totally under your control it's impossible to ensure key security so you may want to think carefully before using it for anything that requires high security, like storing credit card numbers.

To take maximum advantage of the encryption algorithm, your key should be 32 characters in length (128 bits).

The key should be as random a string as you can concoct, with numbers and uppe

codeigniter password encrypt and decrypt

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