When I use encode to encrypt "Ö", the result is "T8yI", and when I use decode to decrypt, the value becomes "Ö".
We can't see the problem with our eyes, I'll use an example to prove this wrong.




When using base64encode, the encoded result is "1g==", and the decrypted result is also correct, you can use this as a reference.
Thank you for your efforts, overall this is a great project.
When I use encode to encrypt "Ö", the result is "T8yI", and when I use decode to decrypt, the value becomes "Ö".
We can't see the problem with our eyes, I'll use an example to prove this wrong.
When using base64encode, the encoded result is "1g==", and the decrypted result is also correct, you can use this as a reference.
Thank you for your efforts, overall this is a great project.