- Overview
- All Models
- Support
Capture Side-Channel Signals with Precision
Measurement probes are a foundational component of side-channel analysis, enabling security engineers to capture power consumption and electromagnetic emissions generated by a device during operation. These physical signals can contain information that correlates with internal computations, making them valuable for identifying leakage that could reveal sensitive data or expose weaknesses in cryptographic implementations.
Used throughout the security evaluation process, measurement probes help researchers and development teams investigate potential vulnerabilities, validate the effectiveness of implemented countermeasures, and assess the resilience of embedded devices against side-channel attacks. By providing visibility into a device's real-world behavior, they enable a deeper understanding of how hardware and software interact during security-critical operations.
Supporting both power analysis and electromagnetic analysis methodologies, measurement probes are commonly used to evaluate secure elements, smart cards, microcontrollers, FPGAs, system-on-chip (SoC) devices, and other embedded technologies. Whether used for vulnerability research, certification preparation, product development, or security testing, high-quality signal acquisition forms the foundation for accurate and repeatable side-channel analysis.
Capture Power Leakage
Measure subtle variations in device power consumption to identify leakage and support power analysis evaluations.
Detect Electromagnetic Activity
Evaluate Modern Embedded Devices
Enable High-Quality Signal Acquisition
Acquire low-amplitude signals with the sensitivity and precision required for accurate and repeatable side-channel analysis.
Most Popular Configurations
High Precision Electromagnetic Probe
Passive Current Probe
Active Current Probe
Services and support
Innovate at speed with curated support plans and prioritized response and turn-around times.
Get predictable, lease-based subscriptions and full lifecycle management solutions—so you reach your business goals faster.
Experience elevated service as a KeysightCare subscriber to get committed technical response and more.
Ensure your test system performs to specification and meets local and global standards.
Make measurements quickly with in-house, instructor-led training, and eLearning.
Download Keysight software or update your software to the newest version.
Frequently Asked Questions
Measurement probes capture the physical signals produced by a device during operation, such as power consumption and electromagnetic emissions. These signals can contain information correlated with internal computations and cryptographic operations, helping engineers identify potential side-channel leakage.
Side-channel evaluations often rely on detecting very small variations in power consumption or electromagnetic emissions. High-quality signal acquisition helps improve measurement accuracy, reduce noise, and increase confidence in security evaluation results.
Current probes are typically used when performing power analysis evaluations. By measuring current consumption, they enable engineers to capture power traces that can be analyzed for side-channel leakage and cryptographic vulnerabilities.
The best probe depends on your target device, evaluation objectives, and testing methodology. Some applications are better suited for power analysis using current probes, while others may benefit from electromagnetic analysis. We recommend discussing your requirements with the Keysight Device Security team to identify the most appropriate solution for your use case and testing environment.
Side-channel leakage refers to information unintentionally revealed through physical effects such as power consumption, electromagnetic emissions, timing behavior, or other observable characteristics of a device during operation.
Power analysis measures variations in a device's power consumption to identify potential information leakage. Electromagnetic (EM) analysis measures electromagnetic emissions generated by device activity, allowing engineers to investigate localized behavior within specific areas of a circuit.
It's inserted directly into the target's power supply line, so it sits between the power source and the device to capture current variations in real time.
The measurement probes can be used to evaluate a wide range of embedded devices, including:
- Secure elements
- Smart cards
- Microcontrollers
- FPGAs
- System-on-Chip (SoC) devices
- Embedded processors
Yes. Measurement probes are commonly used by evaluation laboratories, certification facilities, semiconductor companies, and product security teams to perform side-channel assessments and validate security requirements.
Yes. Because side-channel leakage signals are often small and difficult to observe, specialized measurement probes and acquisition hardware are typically required to obtain accurate and repeatable results.