Link encryption
Link encryption is less secure than end to end encryption.
End-to-end encryption(E2EE):-
End-to-end encryption(E2EE) is a method of secure communication that prevents third-parties from accessing data while it's transferred from one end system or device to another. In E2EE, the data is encrypted on the sender's system or device and only the recipient is able to decrypt it.
It provides more flexibility to the user in choosing what gets encrypted and how. Higher granularity of functionality is available because each application or user can choose specific configurations.
Link encryption:-
Link encryptionis an approach to communications security that encrypts and decrypts all traffic at each network routing point until arrival at its final destination. This repeated decryption and encryption is necessary to allow the routing information contained in each transmission to be read and employed further to direct the transmission toward its destination, before which it is re-encrypted.