| 摘要 |
The device (1) for implementing the method of the invention includes a set of registers (K0, K1, K2, K3 and K4, K5, K6, K7) for the global format formed by at least one register to the elementary format, a microprocessor (8) for executing at least right rotating instructions, left rotating instructions and an instruction to transfer a binary element into a carry register (C), and a read-only memory (10) for containing necessary instructions for implementing the said method. Application: microcircuit card. <IMAGE>
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