SABER
- Algorithm type: key encapsulation mechanism
- Main cryptographic assumption: module learning with rounding
- Scheme authors: Jan-Pieter D’Anvers, Angshuman Karmakar, Sujoy Sinha Roy, Frederic Vercauteren
- Authors’ website: https://www.esat.kuleuven.be/cosic/pqcrypto/saber/
- Version: NIST Round 3 submission
Implementation
- Source of implementation: https://github.com/KULeuven-COSIC/SABER/tree/509cc5ec3a7e12a751ccdd2ef5bd6e54e00bd350 via https://github.com/jschanck/package-pqclean/tree/1ae84c3c/saber
- Implementation version: https://github.com/PQClean/PQClean.git, master, 865f0bd1d1dceb6624fc27e6395b14d2d03261ad
- License: Public domain
- Constant-time: Yes
- Optimizations: Portable C with AVX2 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) |
|---|---|---|---|---|---|---|
| LightSaber-KEM | IND-CCA2 | 1 | 672 | 1568 | 736 | 32 |
| Saber-KEM | IND-CCA2 | 3 | 992 | 2304 | 1088 | 32 |
| FireSaber-KEM | IND-CCA2 | 5 | 1312 | 3040 | 1472 | 32 |