Server Features » TLS Negotiated cipher » CHACHA20

TLS negotiated cipher: CHACHA20

Percentage of IRC SSL/TLS servers with cipher negotiated as CHACHA20. Showing percentages by IRC server software.

About this test result: ChaCha20-Poly1305 is a widely used secure encryption algorithm. It is said to provide similar security to well-known AES-256 but with better speed, especially on mobile devices. See also this cloudflare blog post for more information. It is one of the 3 ciphers used in TLSv1.3, the others being AES-128 and AES-256. It is also available in TLSv1.2 as an option.
Note on statistics: there is a difference in the gathering of TLS servers between 2017-2019 and 2020-onwards, see SSL/TLS statistics on the data page.

Table

Percentage of IRC SSL/TLS servers with cipher negotiated as CHACHA20. Showing percentages by IRC server software.
Software Sep 2017Dec 2018Dec 2019Dec 2020Dec 2021
charybdis 0% 15% 18% 18% 18%
Ergo 0% 0% 0% 0% 12%
InspIRCd 0% 0% 1% 1% 1%
ngircd 0% 0% 0% 0% 0%
UnrealIRCd 0% 19% 29% 47% 63%
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