Differential power analysis - resistant cryptographic processing

摘要: Information leaked from smart cards and other tamper resistant cryptographic devices can be statistically analyzed to determine keys or secret data. A data collection analysis system is configured with an analog-to-digital converter connected measure the device's consumption of electrical power, some property target device, that varies during processing. As device performs operations, A/D are recorded for each operation. The stored then processed using statistical analysis, yielding entire key, partial information about key used accelerate a brute force search attack.