> For the complete documentation index, see [llms.txt](https://http3-explained.haxx.se/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://http3-explained.haxx.se/it/the-protocol/feature-tls.md).

# TLS 1.3

La sicurezza del trasporto utilizzato da QUIC si basa su TLS 1.3 ([RFC 8446](https://tools.ietf.org/html/rfc8446)) quindi non esistono connessioni QUIC non criptate.

TLS 1.3 presenta molteplici vantaggi se paragonato alle versioni precedenti; una delle principali ragioni dell'adozione di TLS da parte di QUIC consiste nel fatto che la 1.3 ha modificato la modalità di negoziazione al fine di richiedere meno va-e-vieni (round-trips). Ciò riduce la latenza del protocollo.

La versione oramai "legacy" di Google-QUIC utilizzava un algoritmo di cifratura personalizzato, non-standard.


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