Hardware

CLP Security Modules

CLP-21: True Random Number Generator

Many cryptographic operations require a source of random numbers primarily in the creation of cipher keys. This core augments a pseudo-random number generator by adding a noise source that may be used to provide automatic seeding of the random number stream as well as provide an ongoing source of entropy to the core. The noise source does not depend on process specific circuitry and is therefore very portable across different fabrication source. The CLP-21 maintains the unique feature of the CLP-01 - by writing to a register, the core is put into a secure mode of operation which makes it largely tamper proof.

Key Features:

• Area: 45K ASIC gates
• High entropy operation - over 128 bits
• High speed operation - 380 Mbps at 200 MHz core clock
• Initial seed provided from internal noise source
• Automatic re-seeding
• Provides a security mode to prevent internal registers from being modified
• Test bench provided

Applications:

• WiMax applications such as 802.16
• IPSec designs in gateways and enterprise routers
• WLAN applications such as 802.11i
• Digital Rights Management
• Military communications systems

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