LEDAcrypt

From PQC WIKI

It is a merge of LEDAkem and LEDApkc in round 1.

Information

Authors

  • Marco Baldi
  • Alessandro Barenghi
  • Franco Chiaraluce
  • Gerardo Pelosi
  • Paolo Santini

Official Links

Related Articles

Cryptanalysis of LEDAcrypt
Daniel Apon and Ray Perlner and Angela Robinson and Paolo Santini.
Cryptology ePrint Archive, Report 2020/455, 20 Apr 2020.

Evaluating the Trade-offs in the Hardware Design of the LEDAcrypt Encryption Functions
Alessandro Barenghi, William Fornaciari, Andrea Galimberti, Gerardo Pelosi, Davide Zoni.
ICECS 2019: 739-742, Nov. 2019.

LEDAcrypt: QC-LDPC Code-Based Cryptosystems with Bounded Decryption Failure Rate
Marco Baldi, Alessandro Barenghi, Franco Chiaraluce, Gerardo Pelosi andPaolo Santini.
CBC 2019, July 2019.


Summary Table

LEDAcrypt

ROUND 2
LEDAcrypt

KEM

LEDAcrypt

KEM-LT

LEDAcrypt

PKC

Description code

QC Random Codes - No Decoding

Assumption QC-SDP
Functionality KEM PKE
Public Key

(bytes)

  • level 1: 1872
  • level 3: 3216
  • level 5: 4616
  • level 1: 6520
  • level 3: 12032
  • level 5: 19040
  • level 1: 6520
  • level 3: 12032
  • level 5: 19040
Private Key

(bytes)

  • level 1: 24
  • level 3: 32
  • level 5: 40
  • level 1: 25
  • level 3: 33
  • level 5: 41
  • level 1: 25
  • level 3: 33
  • level 5: 41
CIPH/SIG

(bytes)

  • level 1: 1872
  • level 3: 3216
  • level 5: 4616
  • level 1: 6520
  • level 3: 12032
  • level 5: 19040
  • level 1: 6554
  • level 3: 12077
  • level 5: 19095
Security

Type

IND-CPA IND-CCA (HHK) IND-CCA (Kobara-Imai)

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