Method for access to all the cells of a memory area for purposes of writing or reading data blocks in said cells
US10157128B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2013 |
| Grant date | Dec 18, 2018 |
| Priority date | — |
| Expiry date | Apr 4, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/251
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for access to all cells in a memory area for purposes of writing or reading data blocks in the cells may include, for each access time (Ti with i=0 to N) to the cells in the memory area to be accessed, a process of determining the address (ADRj, with j=0 to N) of the cell of the memory area to be accessed at the access time (Ti), an address (ADRj) determined for an access time Ti not being once again determined for another access time (Tk, k≠j). The process of determining each address (ADRj) may be a pseudorandom process. The method may be used, for example, in any type of card, chip card, SIM card, etc., which includes a processing unit, such as a microcontroller, for manipulating cryptographic data serving to identify and/or authenticate a user of such a card.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.