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1.7 KiB
1.7 KiB
NTRU
- Algorithm type: key encapsulation mechanism
- Main cryptographic assumption: NTRU
- Scheme authors: John M. Schanck, Cong Chen, Oussama Danba, Jeffrey Hoffstein, Andreas Hülsing, Joost Rijneveld, Peter Schwabe, William Whyte, Zhenfei Zhang
- Authors' website: https://ntru.org
- Version: NIST Round 3 submission
Implementation
- Source of implementation: https://github.com/jschanck/ntru/tree/a43a4457
- Implementation version: https://github.com/PQClean/PQClean.git, master, 865f0bd1d1dceb6624fc27e6395b14d2d03261ad
- License: Public domain
- Constant-time: Yes
- Optimizations: Portable C with AVX2, BMI2 instructions (if available at run-time)
Parameter sets
| Parameter set | Security model | Claimed NIST security level | Public key size (bytes) | Secret key size (bytes) | Ciphertext size (bytes) | Shared secret size (bytes) |
|---|---|---|---|---|---|---|
| NTRU-HPS-2048-509 | IND-CCA2 | 1 | 699 | 935 | 699 | 32 |
| NTRU-HPS-2048-677 | IND-CCA2 | 3 | 930 | 1234 | 930 | 32 |
| NTRU-HPS-4096-821 | IND-CCA2 | 5 | 1230 | 1590 | 1230 | 32 |
| NTRU-HRSS-701 | IND-CCA2 | 3 | 1138 | 1450 | 1138 | 32 |