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Douglas Stebila 30fbfd826f

* Sync with PQClean 6c1ea921ee4a06a6b50c742ca540bb9b5e51aee2

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2021-08-01 17:02:22 -04:00

SABER

Algorithm type: Key encapsulation mechanism.
Main cryptographic assumption: Module learning with rounding.
Principal submitters: Jan-Pieter D'Anvers, Angshuman Karmakar, Sujoy Sinha Roy, Frederik Vercauteren.
Authors' website: https://www.esat.kuleuven.be/cosic/pqcrypto/saber/
Specification version: NIST Round 3 submission.
Implementation source: 6c1ea921ee, which takes it from:
- https://github.com/jschanck/package-pqclean/tree/1ae84c3c/saber, which takes it from:
- 509cc5ec3a
Implementation license (SPDX-Identifier): Public domain.

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)
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

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	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.

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	False	True	False

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

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	False	True	False

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

Large Stack Usage: Implementations identified as having such may cause failures when running in threads or in constrained environments.