> ## Documentation Index
> Fetch the complete documentation index at: https://docs.activeviam.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Crypto 2a

This section describes how the SBM Crypto 2a Risk Class is implemented
and how the [SCO60](https://www.bis.org/basel_framework/chapter/SCO/60.htm?inforce=20260101\&published=20241127#paragraph_SCO_60_20260101_60_66) specification is interpreted.

There are two configuration parameter, set to false by default, specifically added for the Crypto 2a Risk Class that control specific aspects of its implementation. These are:<br />

* 'frtb.crypto-2a.apply-correlation-stress' detailed in [Crypto 2a Interpretation note](./interpretation-note)
* 'frtb.crypto-2a.exchange-stored' explained in [UnderlyingDescription](./datastore-ref-impl/underlying-desc)

Also covered here is the specialization of the data, calculations, and configuration for the Crypto 2a risk-class, including:

* The [data model](./data-model-core), which describes the data used for the calculations and how it is structured, and how the data model is represented in the:
  * [input files](./input-files-ref-impl)
  * [datastore](./datastore-ref-impl)
  * [cube](./cube-ref-impl)
* The [calculations](./calculations), both in the [ETL](./calculations/etl) and at [query time](./calculations/query-time-core)
* The [parameters](./configuration-core) used in the query time calculations