CRYPTOGRAPHIC PROCESSOR

摘要

The invention relates to a cryptographic processor for carrying out operations for cryptographic applications and comprising a large number of coprocessors (104a, 104b, 104c), each coprocessor having a control unit and an arithmetic unit, a central processing unit (102) for controlling the large number of coprocessors (104a, 104b, 104c) and a bus (101) for connecting each coprocessor (104a, 104b, 104c) to the central processing unit (102). The central processing unit (102), the majority of coprocessors (104a, 104b, 104c) and the bus (101) are integrated into a single chip (100). The chip also comprises a common power supply input (122) for supplying the large number of coprocessors (104a, 104b, 104c). The connection in series of different coprocessors increases the throughput of the cryptographic processor and simultaneously improves the security of said processor against attacks, made on the basis of an evaluation of output profiles of the cryptographic processor, as the output profiles of at least two coprocessors are superimposed. By using different types of coprocessors, the cryptographic processor can also be configured as a multifunctional cryptographic processor suitable for use with a multitude of different cryptographic algorithms.