[#IDEA_set_decrypt_key]
= IDEA&lowbar;set&lowbar;decrypt&lowbar;key
:mrdocs:

Derive an IDEA decryption schedule from an encryption schedule (deprecated)&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
&lsqb;&lsqb;deprecated&rsqb;&rsqb;
void
IDEA&lowbar;set&lowbar;decrypt&lowbar;key(
    xref:IDEA_KEY_SCHEDULE.adoc[IDEA&lowbar;KEY&lowbar;SCHEDULE]* ek,
    xref:IDEA_KEY_SCHEDULE.adoc[IDEA&lowbar;KEY&lowbar;SCHEDULE]* dk);
----

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

[cols="1,4"]
|===
| Name| Description
| *ek*
| Encryption schedule from IDEA&lowbar;set&lowbar;encrypt&lowbar;key()&period;
| *dk*
| Destination decryption schedule&period;
|===


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