Server Features » TLS Key exchange group » P-256 » UnrealIRCd
TLS Key exchange group: P-256
Percentage of IRC SSL/TLS servers with key exchange Elliptic Curve Diffie-Hellman (ECDH) using P-256 (prime256v1, secp256r1).Showing percentages for UnrealIRCd servers only.
About this test result: Elliptic Curve Diffie-Hellman (ECDH) using P-256 curve (also called: prime256v1, secp256r1).
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 P-256 (prime256v1, secp256r1).Showing percentages for UnrealIRCd servers only.
| Version | Dec 2025 |
|---|---|
| 3.2 | 1% |
| 4.0 | 62% |
| 4.2 | 10% |
| 5.0 | 5% |
| 5.2 | 3% |
| 6.1 | 0% |
| 6.2 | 1% |