Electromagnetic Side-Channel Analysis (EM-SCA)

Rent, buy or lease Electromagnetic Side-Channel Analysis (EM-SCA) Test Equipment for integrated circuit (IC) security pre-certification testing.

EM-SCA is a passive, non-invasive technique that does not inject faults but instead measures and analyzes the IC's unintentional EM radiation to infer sensitive information, such as cryptographic keys. 
  • Analysis techniques:
    • Differential EM Analysis (DEMA): This advanced technique uses statistical methods to compare the EM emissions from multiple operations. By analyzing the tiny differences in radiation patterns, an attacker can identify correlations with secret data.
    • Simple EM Analysis (SEMA): In some cases, a single EM trace from a cryptographic operation can be enough to expose information without statistical analysis.
    • Near-Field vs. Far-Field: Testing can be performed at a close range (near-field) using a microprobe for high spatial resolution or at a distance (far-field) for lower-precision analysis.
  • Methodology:
    • A test setup involves placing a near-field EM probe close to the IC to measure its radiating electric (E-field) and magnetic (H-field) signals.
    • During test operations, emissions are recorded with a high-bandwidth oscilloscope or spectrum analyzer.
    • Specialized software then processes and analyzes the captured EM traces to identify potential information leakage.