Server Features » TLS Key exchange group » X25519
TLS Key exchange group: X25519
Percentage of IRC SSL/TLS servers with key exchange Elliptic Curve Diffie-Hellman (ECDH) using X25519.Showing percentages by IRC server software.
About this test result: Elliptic Curve Diffie-Hellman (ECDH) using X25519 curve.
This ECDH with classic cryptography is widely used today. However, it is not a PQC algorithm, so is vulnerable to Harvest now, decrypt later.
Table
Percentage of IRC SSL/TLS servers with key exchange Elliptic Curve Diffie-Hellman (ECDH) using X25519.Showing percentages by IRC server software.
| Software | Dec 2025 |
|---|---|
| bahamut | 78% |
| charybdis | 4% |
| Ergo | 50% |
| Hybrid | 32% |
| InspIRCd | 30% |
| IRCNet | 89% |
| IRCU | 58% |
| Nefarious | 83% |
| ngircd | 77% |
| Ratbox | 4% |
| Seven | 100% |
| Solanum | 97% |
| UnrealIRCd | 42% |