liboqs/docs/algorithms/kem_ntru.md

liboqs algorithm datasheet: kem_ntru

Summary

• Name: 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
• Added to liboqs by: Douglas Stebila

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-CCA	1	699	935	699	32
NTRU-HPS-2048-677	IND-CCA	3	930	1234	930	32
NTRU-HPS-4096-821	IND-CCA	5	1230	1590	1230	32
NTRU-HRSS-701	IND-CCA	3	1138	1450	1138	32

Implementation

• Source of implementation: NIST Round 2 submission, via https://github.com/PQClean/PQClean
• Implementation version: b536f7324c
• License: Public domain
• Language: C
• Architectures supported in liboqs master branch: x86, x64