Secure Transmission With Error Correcting Code
AssigneeSTMicroelectronics S.r.l.
InventorsAurelien Francillon, Vincent Roca, Christoph Neumann, Pascal Moniot
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Abstract
The invention concerns a method and a system for encoding digital data (DATA) represented by source symbols, with an error correcting code generating parity symbols from, for each parity symbol, a plurality of source symbols and at least one parity symbol of preceding rank, including at least encrypting once (54) at least one first value (P1) into several encrypted values and integrating at least one combination (P1,j) of said encrypted values to compute (55) at least one part (P2 . . . Pn-k) of said parity symbols.
Claims18
A method for coding digital data (DATA) represented by source symbols (Si), with an error-correction code for generating parity symbols (Pj) based on, for each parity symbol, several source symbols and at least one parity symbol of preceding rank, comprising at least steps of:
- ciphering (54) at least a first value (P1) into several ciphered values (EK(IV, P1));
- and
- taking into account at least one combination (P1,j) of said ciphered values to calculate (55) at least part (P2 . . . Pn-k) of the parity symbols.
Dependencies are inferred from the claim text.