constant-time-testing

Detect timing side-channel vulnerabilities by analyzing execution time variations using statistical testing. This skill uses dudect to apply Welch's t-test, identifying correlations between execution time and secret data in cryptographic implementations.

A timing attack extracts secrets by measuring execution time. dudect identifies secret-dependent leaks by applying Welch's t-test to execution traces, detecting statistically significant timing differences in cryptographic algorithms like RSA or AES.

Pinpoint exact lines of code leaking private keys using dynamic tracing with timecop. After statistical analysis identifies a leak, timecop traces execution to locate specific secret-dependent branches or memory accesses.

Yes, you can use this constant-time verification to audit AES and RSA protocol primitives. It satisfies requirements for security audits of sensitive algorithms, private key handling, and protocol primitives by detecting timing leaks.

The best way to verify cryptographic implementations are constant-time is combining statistical analysis with dynamic tracing. Use dudect for Welch's t-test detection and timecop to pinpoint secret-dependent branches or memory accesses.

You need dynamic tracing tools like timecop after statistical analysis confirms a timing leak exists. Use timecop to pinpoint exact lines of code where secret-dependent branches or memory accesses leak private keys through execution timing.