[#CachingTransactionSignatureChecker]
= CachingTransactionSignatureChecker
:mrdocs:

Signature checker that consults and updates a SignatureCache to avoid repeat verification.

== Synopsis

Declared in `<script/sigcache.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
class CachingTransactionSignatureChecker
    : public xref:TransactionSignatureChecker.adoc[TransactionSignatureChecker]
----

== Base Classes

[cols="1,4"]
|===
| Name| Description
| `xref:TransactionSignatureChecker.adoc[TransactionSignatureChecker]`
| Signature checker bound to an immutable CTransaction.
|===

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:CachingTransactionSignatureChecker/2constructor.adoc[`CachingTransactionSignatureChecker`]         [.small]#[constructor]#
| Construct a caching checker for a specific transaction input.
| xref:CachingTransactionSignatureChecker/VerifyECDSASignature.adoc[`VerifyECDSASignature`]  [.small]#[virtual]#
| Verify an ECDSA signature, using the cache when possible.
| xref:CachingTransactionSignatureChecker/VerifySchnorrSignature.adoc[`VerifySchnorrSignature`]  [.small]#[virtual]#
| Verify a Schnorr signature, using the cache when possible.
|===



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