mirror of
https://github.com/open-quantum-safe/liboqs.git
synced 2025-11-30 00:02:38 -05:00
2.1 KiB
2.1 KiB
liboqs master branch algorithm datasheet: kem_ledacrypt
Summary
- Name: LEDAcrypt
- Algorithm type: key encapsulation mechanism
- Main cryptographic assumption: low-density parity check decoding
- Scheme authors: Marco Baldi, Alessandro Barenghi, Franco Chiaraluce, Gerardo Pelosi, Paolo Santini
- Authors' website: https://www.ledacrypt.org/
- 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) |
|---|---|---|---|---|---|---|
| LEDAcrypt-KEM-LT-12 | IND-CCA | 1 | 6520 | 26 | 6520 | 32 |
| LEDAcrypt-KEM-LT-32 | IND-CCA | 3 | 12032 | 34 | 12032 | 48 |
| LEDAcrypt-KEM-LT-52 | IND-CCA | 5 | 19040 | 42 | 19040 | 64 |
Implementation
- Source of implementation: https://github.com/LEDAcrypt/LEDAcrypt, via https://github.com/PQClean/PQClean
- Implementation version:
04a0dbfb72 - License: Public domain
- Language: C
- Constant-time: No
- Architectures supported in liboqs master branch: x86, x64
Note: The secret key format in this implementation differs from the NIST Round 2 submission. In particular an extra byte is added for keeping track of the threshold value (in the original implementation, it was a global variable). See discussion at https://github.com/PQClean/PQClean/pull/186#issuecomment-503513868.