CEDRUS+C
Symmetric · Hash-based · niccs.org.cn(opens in a new tab)
- Programmes
- NGCC R1
- Latest version
- Round 1 ·
- Security flags
- Implementation findings (all 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 |
|---|---|---|---|---|---|---|
| CEDRUSC-160s Implementation findings | 128-bit | 40 | 9,460 | 9,500 | 2.37 s | 5.89 ms |
| CEDRUSC-160f Implementation findings | 128-bit | 40 | 19,812 | 19,852 | 141.75 ms | 4.33 ms |
| CEDRUSC-256s Implementation findings | 256-bit | 64 | 24,104 | 24,168 | 3.54 s | 9.80 ms |
| CEDRUSC-256f Implementation findings | 256-bit | 64 | 43,548 | 43,612 | 344.87 ms | 5.95 ms |
| CEDRUSC-384s Implementation findings | 384-bit | 96 | 61,572 | 61,668 | 13.19 s | 15.07 ms |
| CEDRUSC-384f Implementation findings | 384-bit | 96 | 75,988 | 76,084 | 3.46 s | 35.55 ms |
| CEDRUSC-512s Implementation findings | 512-bit | 128 | 98,212 | 98,340 | 23.90 s | 32.59 ms |
| CEDRUSC-512f Implementation findings | 512-bit | 128 | 121,520 | 121,648 | 6.94 s | 44.31 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 (all parameter sets): The submitted code mishandles hypertree indices so that few-time keys repeat across signatures, enabling forgery after adaptive signing queries at every parameter set (Saarinen). Full findings report(opens in a new tab)
Only one version of CEDRUS+C is recorded, so there is nothing to compare yet.
History
- New version
Round 1