NTRU-Prime
- Algorithm type: Key encapsulation mechanism.
- Main cryptographic assumption: NTRU.
- Principal submitters: Daniel J. Bernstein, Billy Bob Brumley, Ming-Shing Chen, Chitchanok Chuengsatiansup, Tanja Lange, Adrian Marotzke, Bo-Yuan Peng, Nicola Tuveri, Christine van Vredendaal, Bo-Yin Yang.
- Authors’ website: https://ntruprime.cr.yp.to
- Specification version: supercop-20200826.
- Primary Source:
- Source: https://github.com/PQClean/PQClean/commit/4c9e5a3aa715cc8d1d0e377e4e6e682ebd7602d6
- Implementation license (SPDX-Identifier): Public domain
- Ancestors of primary source:
- https://github.com/jschanck/package-pqclean/tree/4d9f08c3/ntruprime, which takes it from:
- supercop-20210604
Parameter set summary
| Parameter set | Parameter set alias | Security model | Claimed NIST Level | Public key size (bytes) | Secret key size (bytes) | Ciphertext size (bytes) | Shared secret size (bytes) |
|---|---|---|---|---|---|---|---|
| sntrup761 | NA | IND-CCA2 | 2 | 1158 | 1763 | 1039 | 32 |
sntrup761 implementation characteristics
| Implementation source | Identifier in upstream | Supported architecture(s) | Supported operating system(s) | CPU extension(s) used | No branching-on-secrets claimed? | No branching-on-secrets checked by valgrind? | Large stack usage?‡ |
|---|---|---|---|---|---|---|---|
| Primary Source | clean | All | All | None | True | True | False |
| Primary Source | avx2 | x86_64 | Linux,Darwin | AVX2 | False | True | False |
Are implementations chosen based on runtime CPU feature detection? Yes.
‡For an explanation of what this denotes, consult the Explanation of Terms section at the end of this file.
Explanation of Terms
- Large Stack Usage: Implementations identified as having such may cause failures when running in threads or in constrained environments.