CRYPTOGRAPHIC METHOD PROTECTED AGAINST COVERT CHANNEL TYPE ATTACKS
09-10-2003 дата публикации
Номер:
WO2003083645A2
Автор: JOYE, Marc, CHEVALLIER-MAMES, Benoît
Принадлежит: Gemplus
Контакты:
Номер заявки: FR0301058
Дата заявки: 03-04-2003
The invention relates to a cryptographic method secured against a covert channel attack. According to the invention, in order to carry out a selected block of instructions (?j) as a function of an input variable (D1) amongst N predefined instruction blocks (?1,, ?<SB>N</SB>), a common block (Γ (k,s)) is carried out on the predefined N instruction blocks (?1,, ?<SB>N</SB>), a predefined number (Lj) of times, the predefined number (Lj) being associated with the selected instruction block (?j).[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30]
