Thank you both for your replies! The reason that I need encryption is to make data unreadable to users (the data that we need to encrypt are phone numbers). So, in a dataset with several columns (Customer Name, Address, Several KPIs) there are also specific columns with phone numbers that we need to make unreadable. Currently, as I have aforementioned, I use hash functions (SHA256) and I was wondering if there is any similar function to do the encryption, and ideally the decipher, easily. I have found several algorithms to do so, but I asked also here so as to have a second opinion and if there is something more specific! Thanks in advance!
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