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    1.
    发明专利
    未知

    公开(公告)号：DE602004023436D1

    公开(公告)日：2009-11-12

    申请号：DE602004023436

    申请日：2004-03-29

    Applicant: ST MICROELECTRONICS SA ,  ST MICROELECTRONICS SRL

    Inventor： TEGLIA YANNICK ,  ROMAIN FABRICE ,  LIARDET PIERRE-YVAN ,  FRAGNETO PASQUALINA ,  SOZZANI FABIO ,  BERTONI GUIDO

    IPC: H04L9/06

    Abstract: A processor for executing a Rijndeal algorithm which applies a plurality of encryption rounds to a data block array in order to obtain an array of identical size, each round involving a key block array and a data block substitution table, wherein said processor comprises: a first input register (102) containing an input data block column; an output register (111) containing an output data block column or an intermediate block column; a second input register (101) containing a key block column or the intermediate data blocks; a block substitution element (104) receiving the data one block at a time following the selection (103) thereof in the first register and providing, for each block, a column of blocks; an element (109) applying a cyclic permutation to the substitution circuit column blocks; and an Exclusive-OR combination element (110) combining the permutation circuit column blocks with the content of the second register, the result of said combination being loaded into the output register.

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