[#CAST_encrypt]
= CAST_encrypt
:mrdocs:

Encrypt one CAST block in place as two CAST_LONG words (deprecated low‐level).

== Synopsis

Declared in `<openssl/cast.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[deprecated]]
void
CAST_encrypt(
    unsigned int* data,
    xref:CAST_KEY.adoc[CAST_KEY] const* key);
----

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

[cols="1,4"]
|===
| Name| Description
| *data*
| Two CAST_LONG words holding the 64‐bit block (host endianness).
| *key*
| Expanded CAST key from CAST_set_key().
|===


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