Processing

Please wait...

Settings

Settings

Goto Application

1. WO2020053013 - PUBLIC/PRIVATE KEY SYSTEM WITH DECREASED PUBLIC KEY SIZE

Publication Number WO/2020/053013
Publication Date 19.03.2020
International Application No. PCT/EP2019/073327
International Filing Date 02.09.2019
Chapter 2 Demand Filed 29.11.2019
IPC
H04L 9/08 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Arrangements for secret or secure communication
08Key distribution
H04L 9/30 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Arrangements for secret or secure communication
28using particular encryption algorithm
30Public key, i.e. encryption algorithm being computationally infeasible to invert and users' encryption keys not requiring secrecy
CPC
H04L 2209/04
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
2209Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
04Masking or blinding
H04L 9/0822
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Cryptographic mechanisms or cryptographic; arrangements for secret or secure communication
08Key distribution ; or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
0816Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
0819Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
0822using key encryption key
H04L 9/0841
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Cryptographic mechanisms or cryptographic; arrangements for secret or secure communication
08Key distribution ; or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
0816Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
0838Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these
0841involving Diffie-Hellman or related key agreement protocols
H04L 9/0861
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Cryptographic mechanisms or cryptographic; arrangements for secret or secure communication
08Key distribution ; or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
0861Generation of secret information including derivation or calculation of cryptographic keys or passwords
H04L 9/30
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Cryptographic mechanisms or cryptographic; arrangements for secret or secure communication
30Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
H04L 9/3093
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Cryptographic mechanisms or cryptographic; arrangements for secret or secure communication
30Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
3093involving Lattices or polynomial equations, e.g. NTRU scheme
Applicants
  • KONINKLIJKE PHILIPS N.V. [NL]/[NL]
Inventors
  • GARCIA MORCHON, Oscar
  • BHATTACHARYA, Sauvik
  • TOLHUIZEN, Ludovicus, Marinus, Gerardus, Maria
Agents
  • COOPS, Peter
  • DE HAAN, Poul, Erik
Priority Data
18194118.812.09.2018EP
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) PUBLIC/PRIVATE KEY SYSTEM WITH DECREASED PUBLIC KEY SIZE
(FR) SYSTÈME DE CLÉS PUBLIQUE/PRIVÉE À TAILLE DE CLÉ PUBLIQUE RÉDUITE
Abstract
(EN) Some embodiments are directed to a public-key encryption device (20) and a private-key decryption device (10). The public-key encryption device is configured to compute a second public-key matrix (u), the second public-key matrix (u) having fewer matrix elements than the first public-key matrix (b) of the private-key decryption device. This reduces computation and bandwidth requirements at the side of the public-key encryption device.
(FR) Certains modes de réalisation concernent un dispositif de chiffrement à clé publique (20) et un dispositif de déchiffrement à clé privée (10). Le dispositif de chiffrement à clé publique est configuré pour calculer une seconde matrice de clé publique (u), la seconde matrice de clé publique (u) ayant moins d'éléments de matrice que la première matrice de clé publique (b) du dispositif de déchiffrement à clé privée. Ceci réduit les exigences de calcul et de largeur de bande du côté du dispositif de chiffrement à clé publique.
Latest bibliographic data on file with the International Bureau