Electromagnetic Analysis (EMA)
Electromagnetic Analysis (EMA) is a technique used in computer security to analyze the electromagnetic emissions (signals) that are generated by electronic devices, such as computer chips, smartphones, or smart cards. These emissions can reveal information about the operation of the device, including its cryptographic secrets, passwords, or other sensitive data.
EMA works by using specialized equipment to capture and analyze the electromagnetic waves emitted by the device. These waves can be measured and analyzed to identify patterns that may indicate the presence of secret data. EMA can also be used to detect attacks on the device, such as attempts to modify its behavior or extract data.
EMA is an important tool for protecting sensitive information, especially in high-security environments such as government agencies, military organizations, and financial institutions. By analyzing the electromagnetic emissions of devices, security experts can identify vulnerabilities and develop strategies to protect against potential attacks.
In summary, EMA is a technique used in computer security to analyze electromagnetic signals emitted by electronic devices, which can reveal information about the operation of the device and be used to protect against attacks.