# [−] [src] Module m_captcha::cache

message datatypes to interact with MCaptcha actor Cache is used to save proofof work details and nonces to prevent replay attacks and rainbow/dictionary attacks

## Re-exports

`pub use hashcache::HashCache;`

## Modules

hashcache | In-memory cache implementation that uses HashMap
messages | Messages that can be sent to cache data structures implementing Save

## Traits

Save | Describes actor handler trait impls that are required by a cache implementation