[#SigHashCache]
= SigHashCache
:mrdocs:

Data structure to cache SHA256 midstates for the ECDSA sighash calculations (bare, P2SH, P2WPKH, P2WSH).

== Synopsis

Declared in `<script/interpreter.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
class SigHashCache;
----

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:SigHashCache/Load.adoc[`Load`] 
| Load into writer the SHA256 midstate if found in this cache.
| xref:SigHashCache/Store.adoc[`Store`] 
| Store into this cache object the provided SHA256 midstate.
|===



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