constant-time-analysis

Timing side-channel vulnerabilities in cryptographic code are detected by scanning assembly or bytecode for variable-time instructions where secrets flow into division, branching, comparisons, or lookup indices. This analysis flags dangerous operations and recommends constant-time replacements.

Constant-time analysis is the process of identifying timing leaks where secret-dependent operations leak information through execution time. You need it during crypto code reviews or implementation audits to ensure secrets do not influence execution timing.

Yes, you can automate timing analysis in CI pipelines by configuring the scan to output CI-friendly JSON results. This allows automated detection of timing side-channel vulnerabilities during continuous integration security checks.

Constant-time analysis supports compiled languages via assembly pattern inspection and VM/bytecode-based languages via opcode heuristics. It scans the generated assembly or bytecode to detect variable-time operations across supported formats.

To find secret-dependent branches and unsafe comparisons, scan the compiled assembly or bytecode for branching, division, and modulo operations conditioned on secrets. The analysis identifies these patterns and guides toward safer constant-time selection approaches.

Assembly inspection for timing analysis is limited to detecting known dangerous instruction patterns in supported compiled and VM/bytecode languages. It relies on opcode heuristics and cannot guarantee complete coverage of all possible timing side-channel vectors.