Modern forensic workflows can often acquire information through the operating system, file system, applications, backups, or other accessible interfaces. But increasingly, the barrier to an investigation sits deeper within the device.

Secure boot, encrypted storage, secure elements, Trusted Execution Environments, and hardware-backed key management can control how a device starts, how access is authorized, and how protected information can be reached.

When these protections prevent software-only methods from providing the required access or visibility, the next step is understanding what is creating the barrier. Hardware security evaluation can help your team identify:

Every protected device has specific components,  a secure element, a Trusted Execution Environment, a crypto co-processor, that act as the gatekeeper for sensitive data.

Before any testing begins, the first job is identifying exactly which component holds that role on this particular device. Without that, testing has no target: effort gets spent probing the wrong part of the board or chip entirely.

Once the controlling component is known, the next question is where on the device it actually does its work, which die, which pin, which region of the board. Security-sensitive operations like key generation, decryption, or authentication checks often happen in a very specific, physically localized place.

Pinpointing that location is what makes later testing precise instead of exploratory.

Not all protections work the same way. One device might rely on a hardware root of trust burned into silicon at manufacturing; another might use a software-enforced boot chain that's easier to influence.

Understanding the specific mechanism in play determines which testing techniques will actually be effective, and rules out approaches that would waste time on a mechanism they can't touch.

Hardware-level testing, physically probing or manipulating a chip, is resource-intensive and, in a forensic context, carries evidentiary weight. This step is about confirming that software-only methods have genuinely been exhausted, and that the case, the device, and the information need actually justify moving to physical-level analysis.

With the barrier understood, the evaluation points toward a specific next step, side-channel analysis, fault injection, or further characterization, rather than leaving the team to guess. This turns a hardware security evaluation into a decision point: a clear, justified recommendation for what to try next, not just a diagnosis of what's blocking the investigation.

Beyond the Software Layer

Keysight enables forensic teams investigate security controls that operate below the software layer, assess whether hardware-level attack paths are relevant, and develop controlled methods for analyzing protected devices, with training, tooling, workflows, and expert support to build lasting internal capability.


Keysight supports black-box evaluation of seized, legacy, unknown, and third-party devices where documentation or vendor support may be limited or unavailable. 

Black-box evaluation helps teams characterize the target, identify relevant security mechanisms, and determine which hardware-level testing methods are most appropriate to investigate further. 

Build Your Digital Forensics Lab 

Build a repeatable hardware investigation capability that reduces investigation time, improves consistency, and scales across future devices, turning hardware-level analysis from a specialized one-off project into a capability your team owns. 

Keysight helps forensic organizations build controlled laboratory environments for Side-Channel Analysis, Fault Injection, and device characterization, together with the expertise and workflows needed to operate independently. 

Build the Right Test Environment

Build the Right Test Environment 

Establish a controlled hardware security testing environment based on the devices, techniques, and investigative requirements relevant to your organization.

Develop Repeatable Workflows

Develop Repeatable Workflows 

Create structured processes for test execution, measurement, analysis, and documentation so experiments can be reproduced, and methods can be reused across future targets.

Develop Your Team's Expertise

Develop Your Team's Expertise

Build hands-on skills in side-channel analysis and fault injection, through training that ranges from foundational techniques to advanced programs tailored to your lab, workflows, and device types.

Build Your Black-Box Device Investigation Lab

A forensic device security lab brings together the equipment, software, and expertise needed to investigate electronic devices in a controlled, repeatable environment. Keysight Device Security combines specialized hardware and software for precise measurement, triggering, side-channel analysis, fault injection, and automation, helping forensic teams investigate both known and unfamiliar devices.

Discover what you need to build your black-box investigation lab.

Device Under Investigation

The investigation starts with the device itself. It may be seized, encrypted, legacy, or otherwise unfamiliar, from a smartphone or hardware cryptocurrency wallet to embedded, network, or automotive electronics.

Teams can characterize the device, identify the hardware mechanisms protecting access, and apply the appropriate physical analysis techniques, with the goal of uncovering information that may otherwise remain inaccessible, from accessing protected device data to investigating cryptographic assets or overcoming authentication barriers when credentials such as a PIN or password are unavailable.

Evidence-Device-Under-Investigation

Frequently Asked Questions

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