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2.8 KiB
2.8 KiB
liboqs algorithm datasheet: sig_picnic
Summary
- Name: Picnic
- Algorithm type: signature
- Main cryptographic assumption: hash function security (ROM/QROM), key recovery attacks on the lowMC block cipher
- NIST submission URL: https://csrc.nist.gov/CSRC/media/Projects/Post-Quantum-Cryptography/documents/round-2/submissions/Picnic-Round2.zip
- Submitters (to NIST competition): Greg Zaverucha, Melissa Chase, David Derler, Steven Goldfeder, Claudio Orlandi, Sebastian Ramacher, Christian Rechberger, Daniel Slamanig, Jonathan Katz, Xiao Wang, Vladmir Kolesnikov
- Submitters' website: https://microsoft.github.io/Picnic/
- Added to liboqs by: Christian Paquin
Parameter sets
| Parameter set | Security model | Claimed NIST security level | Public key size (bytes) | Secret key size (bytes) | Signature size (bytes) |
|---|---|---|---|---|---|
| picnic_L1_FS | EUF-CMA | 1 | 33 | 49 | 34036 |
| picnic_L1_UR | EUF-CMA | 1 | 33 | 49 | 53965 |
| picnic_L3_FS | EUF-CMA | 3 | 49 | 73 | 76776 |
| picnic_L3_UR | EUF-CMA | 3 | 49 | 73 | 121849 |
| picnic_L5_FS | EUF-CMA | 5 | 65 | 97 | 132860 |
| picnic_L5_UR | EUF-CMA | 5 | 65 | 97 | 209510 |
| picnic2_L1_FS | EUF-CMA | 1 | 33 | 49 | 13806 |
| picnic2_L3_FS | EUF-CMA | 3 | 49 | 73 | 29754 |
| picnic2_L5_FS | EUF-CMA | 5 | 65 | 97 | 54736 |
Implementation
- Source of implementation: https://github.com/IAIK/Picnic
- Implementation version: https://github.com/IAIK/Picnic/tree/v2.0
- License: MIT License
- Language: C
- Constant-time: Yes
- Architectures supported in liboqs master branch: x86, x64
Additional comments
The original Picnic implementation includes optimizations that are not currently being built in liboqs. See src/sig/picnic/upstream/README for details.