MPC180 データシートの表示（PDF） - Motorola => Freescale

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MPC180

MPC180 Security Processor

Motorola => Freescale 

Public Key Execution Unit (PKEU)

6.5 Random Number Generator (RNG)

Because many cryptographic algorithms use random numbers as a source for generating a secret value, it is

desirable to have a private RNG for use by the MPC180. The anonymity of each random number must be

maintained, as well as the unpredictability of the next random number. The private RNG allows the system

to develop random challenges or random secret keys. The secret key can thus remain hidden from even the

high-level application code, providing an added measure of physical security. The RNG is also useful for

digital signature generation.

The RNG is a digital integrated circuit capable of generating 32-bit random numbers. It is designed to

comply with FIPS-140 standards for randomness and non-determinism. The RNG creates an unpredictable

sequence of bits and assembles a string of those bits into a register. The random number in that register is

accessible to the host through the host interface of the RNG.

7 Software and Hardware Support

Customers will have access to device drivers integrated with the WindRiver VxWorks OS. Sample drivers

will also be provided to customers wishing to integrate MPC180 support into other operating systems.

Third-party support for the MPC180 includes a development system for both the MPC860 and the

MPC8260. The WindRiver/EST SBC8260C development system and Zephyr Engineering ZPC860C, both

of which include a board support package, are available to accelerate customer design cycles.

8 Revision History

Table 8-1 summarizes the revision history of this document.

Table 8-1. Revision History

Revision No.

0

0.1

Substantive Change(s)

Initial release.

Added revision history and updated with new template.

6

MPC180 Security Processor Technical Summary

MOTOROLA

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