Server Features » TLS Key exchange group » X25519 » charybdis
TLS Key exchange group: X25519
Percentage of IRC SSL/TLS servers with key exchange Elliptic Curve Diffie-Hellman (ECDH) using X25519.Showing percentages for charybdis servers only.
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 for charybdis servers only.
| Version | Dec 2025 |
|---|---|
| 3.3 | 100% |
| 4.1 | 5% |