Analogue Insight Safe Announces AISAFE Digital Noise Source IP for Scalable Performance Hardware Entropy Sources in ASICs

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Feb. 05, 2026 – 

Metastability-based physical noise source with digitization designed to support NIST SP800-G0B and AIS 20/31 entropy-sources.

PORTLAND — Analogue Insight Safe today announced the availability of the Analogue Insight Safe Digital Noise Source, a high-performance, low-area, low- power physical noise source with digitization designed for use in NIST SP800-G0B and AIS 20/31 compliant hardware entropy sources.

The design leverages metastability to produce high data rate random bits and supports operation in either self-oscillating or synchronous modes, accommodating a wide range of SoC and ASIC integration requirements.

Modern security-sensitive designs increasingly rely on robust, high-quality entropy for cryptographic key generation, secure boot, secure communications, and device identity. The Analogue Insight Safe Digital Noise Source addresses these demands by combining high throughput and fast startup with a compact gate footprint, enabling designers to scale entropy architectures without compromising tight silicon area and power budgets.

“Entropy is foundational to system security, and it must be defensible under evaluation,” said Rachael J. Parker, VP of Engineering at Analogue Insight Safe. “With the Analogue Insight Safe Digital Noise Source, we’re offering an implementation- friendly IP block that targets strong performance alongside a clear entropy justification approach, helping teams reduce integration and certification risk.”

Key Features

• High performance: Operates up to the datapath clock rate (Gb/s class throughput, implementation dependent)
• Low area: <1k gates equivalent per noise source (implementation dependent)
• Scalable architecture: Noise sources can be tiled to construct multi-bit entropy sources
• Fast startup: <1k clock cycles to reach steady-state operation (implementation dependent)
• Flexible timing: Supports self-oscillating or synchronous operation
• Implementation-friendly: Built from standard CMOS devices, easing porting across foundries and process nodes

Benefits for SoC and ASIC Teams

Integration Flexibility

Because the design is composed entirely of standard CMOS structures, it is straightforward to port across process technologies and foundry ecosystems, supporting both new designs and derivative or variant SoCs.

Hardware Attack Resilience

Compared with timing-jitter-based physical noise sources (such as certain ring- oscillator approaches), metastability-based designs can reduce exposure to specific classes of injection and interference attacks. In particular, the Analogue Insight Safe Digital Noise Source is designed to:

• Avoid common harmonic injection vectors associated with oscillator-based approaches
• Provide clear, detectable failure modes that support continuous health-testing strategies

As with any security IP, system-level resilience depends on integration choices, operating conditions, monitoring, and the overall threat model.

Applications

The low-area and low-power profile of the Analogue Insight Safe Digital Noise Source

makes it suitable for a broad range of ASIC and SoC applications, including:

• Secure key generation and key storage systems
• Root of trust and secure boot
• Network security appliances and high-throughput cryptographic accelerators
• IoT, industrial, and embedded systems requiring strong on-chip entropy
• Automotive and safety-relevant systems requiring robust security primitives

Deliverables and Certification Collateral

The Analogue Insight Safe Digital Noise Source is intended to support FIPS 140-3 program needs and beyond by enabling:

• A simple, industry-established entropy justification approach

• Integration without non-vetted conditioning components (for example, avoiding ad hoc XOR-only conditioning in favor of well-understood constructions where conditioning is required)

For teams building complete solutions, the Digital Noise Source can be paired with the AISAFE MOLOKAI product line for end-to-end security architectures.

Related IP Listings

https://www.design-reuse.com/ip/view/S5_717/aisafe-kauai-true-random-number- generation-solutions-product-line

Availability

The Analogue Insight Safe Digital Noise Source is available now for licensing. Evaluation packages, integration guidance, and collateral to support entropy-source evaluation workflows are available upon request.

About Analogue Insight Safe

Analogue Insight Safe develops security IP focused on entropy, cryptographic primitives, and integration-ready security building blocks for modern SoCs and ASICs.

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