LEDAcrypt

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

• Official Website
• Official Comments

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)