[#EVP_CIPHER_meth_set_impl_ctx_size]
= EVP&lowbar;CIPHER&lowbar;meth&lowbar;set&lowbar;impl&lowbar;ctx&lowbar;size
:mrdocs:

Set how many bytes of cipher&hyphen;specific context storage to allocate (deprecated)&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
&lsqb;&lsqb;deprecated&rsqb;&rsqb;
int
EVP&lowbar;CIPHER&lowbar;meth&lowbar;set&lowbar;impl&lowbar;ctx&lowbar;size(
    xref:EVP_CIPHER-07.adoc[EVP&lowbar;CIPHER]* cipher,
    int ctx&lowbar;size);
----

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

1 on success, or 0 on failure&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *cipher*
| Custom cipher method to update&period;
| *ctx&lowbar;size*
| Size in bytes of the implementation context allocated with each EVP&lowbar;CIPHER&lowbar;CTX&period;
|===


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