Code layout
The module's classes
| Class | Role |
|---|---|
FaScChallenge | Composes a challenge, visual or written, and its translated prompt. |
FaScFormes | Repertoire of geometric silhouettes and how they are traced. |
FaScImage | Renders the symbol strip as PNG, with no intermediate file. |
FaScToken | Signing, verification, expiry and single use of the challenge token. |
FaScGuard | Trap field, minimum delay, attempt limiting, failure logging. |