CEDRUSɑ
Symmetric · Hash-based · niccs.org.cn(opens in a new tab)
- Programmes
- NGCC R1
- Latest version
- Round 1 ·
- Security flags
- Implementation findings (2 of 8 sets)
Third-party findings: full report on ngcc.dev(opens in a new tab).
Parameter sets
Round 1 · 20 Sep 2026
| Parameter set | Level | pk (B) | sig (B) | pk+sig (B) | Sign | Verify |
|---|---|---|---|---|---|---|
| CEDRUSALPHA-160s Implementation findings | 128-bit | 40 | 10,300 | 10,340 | 2.16 s | 5.34 ms |
| CEDRUSALPHA-160f Implementation findings | 128-bit | 40 | 19,420 | 19,460 | 158.54 ms | 4.94 ms |
| CEDRUSALPHA-256s | 256-bit | 64 | 25,568 | 25,632 | 3.36 s | 8.15 ms |
| CEDRUSALPHA-256f | 256-bit | 64 | 43,296 | 43,360 | 375.64 ms | 6.71 ms |
| CEDRUSALPHA-384s | 384-bit | 96 | 60,672 | 60,768 | 12.44 s | 19.22 ms |
| CEDRUSALPHA-384f | 384-bit | 96 | 76,176 | 76,272 | 3.49 s | 34.73 ms |
| CEDRUSALPHA-512s | 512-bit | 128 | 98,048 | 98,176 | 24.94 s | 36.14 ms |
| CEDRUSALPHA-512f | 512-bit | 128 | 127,488 | 127,616 | 5.88 s | 40.99 ms |
Wall-clock times vary between runs and machines (CPU frequency scaling, other tenants on cloud VMs); cycle counts are the steadier basis for comparison.
Security flags
- Implementation findings (CEDRUSALPHA-160s, CEDRUSALPHA-160f): The submitted code checks only 128 bits of each one-time chain value, so a lower-layer root can be replaced with about 2^128 work, below the claim for this set (shiyuan). Full findings report(opens in a new tab)
Only one version of CEDRUSɑ is recorded, so there is nothing to compare yet.
History
- New version
Round 1