While there are many types of encryption algorithms in use today, the three primary ones are:
DES: This is one of the earliest forms of data encryption, developed n the 1970s. Data Encryption Standard (DES) relies on 64-bit encryption, which is not very safe. Its successor, Triple Data Encryption Standard (3DES), is relatively safer.
AES: Advanced Encryption Standard (AES) is arguably the most secure encryption algorithm. It’s used by most premium VPN providers today.
RSA: Named after its founders—Rivest, Shamir, and Adleman—RSA is one of the most preferred algorithms for asymmetric encryption.