[#ECDSA_size]
= ECDSA&lowbar;size
:mrdocs:

Returns the maximum length of the DER encoded signature

== Synopsis

Declared in `&lt;openssl&sol;ec&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
&lsqb;&lsqb;deprecated&rsqb;&rsqb;
int
ECDSA&lowbar;size(xref:EC_KEY.adoc[EC&lowbar;KEY] const* eckey);
----

[WARNING]
====
https://en.cppreference.com/cpp/language/attributes/deprecated[Deprecated^]. Use of this entity is allowed but discouraged.
====
== Return Value

numbers of bytes required for the DER encoded signature

== Parameters

[cols="1,4"]
|===
| Name| Description
| *eckey*
| EC&lowbar;KEY object
|===


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