Add optional parameter includeLength to encrypt/decrypt functions, to add possibility encrypt/decrypt values without length

[andot]

Without length, the decrypt text is not correct if the encrypt data length is not a multiple of 4.

[EgzoT]

Without length, the decrypt text is not correct if the encrypt data length is not a multiple of 4.

Yes, I only tested for multiples of 4. But I didn't use this for text but for Buffer data converted to Uint8Array (data from bluetooth device). So, what's the best way to convert Buffer data using these methods?

[andot]

You don't need to modify anything. Just call encrypt and decrypt directly with Uint8Array arguments.