Encryption, by itself, can protect the confidentiality of messages, but other techniques are still needed to protect the integrity and authenticity of a message; for example, verification of a message authentication code (MAC) or a digital signature.
Enkripcija, sama po sebi, može da obezbedi tajnost poruke, ali potrebne su i druge tehnike za zaštitu integriteta i autentičnosti poruke, na primer, provera identifikacionog koda poruke ili digitalni potpis.