sharpetronics/liboqs
1
0
Fork 0
mirror of https://github.com/open-quantum-safe/liboqs.git synced 2025-10-15 00:01:37 -04:00
Code Issues Projects Releases Wiki Activity
liboqs/docs/algorithms/sig/rainbow.md
Douglas Stebila 1ad950ac00
Sync with PQClean (#851) 
* Remove HQC round 2

* Sync with PQClean

3c8be3cb1f8ca0953f2df44ea665f118efb468d6

* Add HQC from PQClean
2020-11-24 10:04:49 -05:00

2.7 KiB
Raw Blame History

Rainbow

  • Algorithm type: signature
  • Main cryptographic assumption: multivariable polynomials, unbalanced oil and vinegatr
  • Scheme authors: Jintai Ding, Ming-Shing Chen, Albrecht Petzoldt, Dieter Schmidt, Bo-Yin Yang
  • Version: NIST Round 2 submission

Implementation

Parameter sets

Parameter set Security model Claimed NIST security level Public key size (bytes) Secret key size (bytes) Signature size (bytes)
Rainbow-Ia-Classic EUF-CMA 1 148992 92960 64
Rainbow-Ia-Cyclic EUF-CMA 1 58144 92960 64
Rainbow-Ia-Cyclic-Compressed EUF-CMA 1 58144 64 64
Rainbow-IIIc-Classic EUF-CMA 3 710640 511448 156
Rainbow-IIIc-Cyclic EUF-CMA 3 206744 511448 156
Rainbow-IIIc-Cyclic-Compressed EUF-CMA 3 206744 64 156
Rainbow-Vc-Classic EUF-CMA 5 1705536 1227104 204
Rainbow-Vc-Cyclic EUF-CMA 5 491936 1227104 204
Rainbow-Vc-Cyclic-Compressed EUF-CMA 5 491936 64 204

Security considerations

In October 2020, Beullens announced improved cryptanalysis of Rainbow that somewhat reduces the security of the Round 2 and Round 3 parameters. As of October 28, 2020, the scheme authors have acknowledged the attack and are preparing a response.