Koninklijke Philips Corporation N.v.

Jose Luis Torre Arce

Ludovicus Marinus Gerardus Maria Tolhuizen

Sauvik Bhattacharya

Oscar Garcia Morchon

Some embodiments relate to a first electronic network node is provided () configured for a cryptographic operation. The first network node is configured to receive as input a difficulty parameter (d), and a structure parameter (n), and to obtain a shared matrix (A), the shared matrix being shared a second network node through a communication interface, entries in the shared matrix A being selected modulo a first modulus (q), the shared matrix (A) being a square matrix (k×k) of dimension (k) equal to the difficulty parameter (d) divided by the structure parameter (n), the entries in the shared matrix (A) being polynomials modulo a reduction polynomial (ƒ) of degree equal to the structure parameter (n), said cryptographic operation using the shared matrix.

Configurable cryptographic device

Some embodiments relate to a first electronic network node is provided () configured for a cryptographic operation. The first network node is configured to receive as input a difficulty parameter (d), and a structure parameter (n), and to obtain a shared matrix (A), the shared matrix being shared a second network node through a communication interface, entries in the shared matrix (A) being selected modulo a first modulus (q), the shared matrix (A) being a square matrix (k&#xd7;k) of dimension (k) equal to the difficulty parameter (d) divided by the structure parameter (n), the entries in the shared matrix (A) being polynomials modulo a reduction polynomial (&#x192;) of degree equal to the structure parameter (n), said cryptographic operation using the shared matrix.

Growing community of inventors

Eindhoven, Netherlands

Jose Luis Torre Arce