资料介绍
This application report studies the implementation of the Data Encryption Standard (DES) on
the TMS320C6000E family of processors. C source code from the public domain was
optimized using the version 3.01 Optimizing C Compiler. Data rates on the C6201 (200 MHz)
are measured at 53 Mbits per second for DES and 22 Mbits per second for triple-DES. Data
rates on the C6211 (150 MHz) device are measured at 39 Mbits per second for DES and 18
Mbits per second for triple-DES. This application note details the feedback generated by the
Optimizing C Compiler and the corresponding methods used to optimize DES for the C6201
and C6211. Discussion of the structure of the DES algorithm is provided only as necessary
to elucidate the optimization methods employed, with reference to more detailed
descriptions.
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