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liboqs/docs/algorithms/kem/ntru.md
Goutam Tamvada 760b3886fa
New datasheets (#1030) 
* Documentation YAML files and automatic markdown generation for KEMS.

* Escape underscores

Co-authored-by: Douglas Stebila <dstebila@uwaterloo.ca>
2021-07-15 13:50:46 -04:00

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NTRU

  • Algorithm type: Key encapsulation mechanism.
  • Main cryptographic assumption: NTRU in Z[x]/(q, x^n-1) with prime n and power-of-two q.
  • Principal submitters: John M. Schanck.
  • Auxiliary submitters: Cong Chen, Oussama Danba, Jeffrey Hoffstein, Andreas Hülsing, Joost Rijneveld, Tsunekazu Saito, Peter Schwabe, William Whyte, Keita Xagawa, Takashi Yamakawa, Zhenfei Zhang.
  • Authors website: https://ntru.org/
  • Specification version: NIST Round 3 submission.
  • Implementation source: 89d3461336, which takes it from:
  • Implementation license (SPDX-Identifier): CC0-1.0.

Parameter set summary

Parameter set Security model Claimed NIST 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

NTRU-HPS-2048-509 implementation characteristics

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?
clean All All None True True False
avx2 x86_64 Linux,Darwin AVX2,BMI2 True True False

Are implementations chosen based on runtime CPU feature detection? Yes.

NTRU-HPS-2048-677 implementation characteristics

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?
clean All All None True True False
avx2 x86_64 Linux,Darwin AVX2,BMI2 True True False

Are implementations chosen based on runtime CPU feature detection? Yes.

NTRU-HPS-4096-821 implementation characteristics

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?
clean All All None True True False
avx2 x86_64 Linux,Darwin AVX2,BMI2 True True False

Are implementations chosen based on runtime CPU feature detection? Yes.

NTRU-HRSS-701 implementation characteristics

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?
clean All All None True True False
avx2 x86_64 Linux,Darwin AVX2,BMI2 True True False

Are implementations chosen based on runtime CPU feature detection? Yes.