BRQC
Code-based · Rank Synd. Dec. · niccs.org.cn(opens in a new tab)
- Programmes
- NGCC R1
- Status
- NGCC round 1
- Security flags
- Implementation findings (all sets)
Third-party findings: full report on ngcc.dev(opens in a new tab).
Parameter sets
| Parameter set | Level | pk (B) | ct (B) | pk+ct (B) | Keygen | Encaps | Decaps |
|---|---|---|---|---|---|---|---|
| BRQC-128 Implementation findings | 128-bit | 1,954 | 3,844 | 5,798 | 173.6 µs | 332.4 µs | 965.8 µs |
| BRQC-256 Implementation findings | 256-bit | 3,345 | 6,626 | 9,971 | 492.0 µs | 782.0 µs | 3.27 ms |
| BRQC-512 Implementation findings | 512-bit | 6,562 | 13,060 | 19,622 | 912.5 µs | 1.46 ms | 7.64 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 decapsulation ignores padding bits, so altered copies of a challenge ciphertext decapsulate to the same key, breaking IND-CCA security (Saarinen). Full findings report(opens in a new tab)
History
No events recorded for this scheme yet.