[#MutableTransactionSignatureCreator]
= MutableTransactionSignatureCreator
:mrdocs:

A signature creator for transactions.

== Synopsis

Declared in `<script/sign.h>`

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

== Base Classes

[cols="1,4"]
|===
| Name| Description
| `xref:BaseSignatureCreator.adoc[BaseSignatureCreator]`
| Interface for signature creators.
|===

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:MutableTransactionSignatureCreator/2constructor-09.adoc[`MutableTransactionSignatureCreator`]         [.small]#[constructor]#
| Constructors
| xref:MutableTransactionSignatureCreator/Checker.adoc[`Checker`]  [.small]#[virtual]#
| Access the signature checker paired with this creator.
| xref:MutableTransactionSignatureCreator/CreateMuSig2AggregateSig.adoc[`CreateMuSig2AggregateSig`]  [.small]#[virtual]#
| Aggregate MuSig2 partial signatures into a final signature.
| xref:MutableTransactionSignatureCreator/CreateMuSig2Nonce.adoc[`CreateMuSig2Nonce`]  [.small]#[virtual]#
| Create a MuSig2 public nonce for the given participant.
| xref:MutableTransactionSignatureCreator/CreateMuSig2PartialSig.adoc[`CreateMuSig2PartialSig`]  [.small]#[virtual]#
| Create this participant's MuSig2 partial signature.
| xref:MutableTransactionSignatureCreator/CreateSchnorrSig.adoc[`CreateSchnorrSig`]  [.small]#[virtual]#
| Create a Schnorr signature for the Taproot input.
| xref:MutableTransactionSignatureCreator/CreateSig.adoc[`CreateSig`]  [.small]#[virtual]#
| Create a singular (non‐script) signature for the transaction input.
|===



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