[#CHMAC_SHA256-Write]
= xref:CHMAC_SHA256.adoc[CHMAC_SHA256]::Write
:relfileprefix: ../
:mrdocs:

Absorb more data into the MAC.

== Synopsis

Declared in `<crypto/hmac_sha256.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:CHMAC_SHA256.adoc[CHMAC_SHA256]&
Write(
    unsigned char const* data,
    size_t len);
----

== Return Value

A reference to this hasher, for chaining.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *data*
| Pointer to the input bytes.
| *len*
| Number of input bytes.
|===


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