Server Features » TLS Negotiated hashing algorithm » SHA-1

TLS negotiated hashing algorithm: SHA-1

Percentage of IRC SSL/TLS servers with hashing algorithm negotiated as SHA-1 hashing algorithm. Showing percentages by IRC server software.

About this test result: The SHA-1 hashing algorithm is a 160-bit hash function. It is no longer considered secure since 2010.
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 hashing algorithm negotiated as SHA-1 hashing algorithm. Showing percentages by IRC server software.
Software Sep 2017Dec 2018Dec 2019Dec 2020Dec 2021
bahamut 31% 8% 12% 6% 6%
charybdis 6% 5% 3% 1% 1%
Hybrid 16% 11% 8% 6% 5%
InspIRCd 7% 4% 3% 1% 1%
IRCNet 0% 0% 0% 17% 11%
IRCU 2% 3% 3% 4% 5%
ngircd 2% 3% 2% 1% 1%
Ratbox 10% 10% 5% 4% 5%
UnrealIRCd 12% 9% 7% 4% 3%
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