[#EVP_CIPHER_CTX_reset]
= EVP_CIPHER_CTX_reset
:mrdocs:

Reset a cipher context to a reusable empty state without freeing it.

== Synopsis

Declared in `<openssl/evp.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
EVP_CIPHER_CTX_reset(xref:EVP_CIPHER_CTX.adoc[EVP_CIPHER_CTX]* c);
----

== Return Value

1 on success, or 0 on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *c*
| Context to clear; may be reused with EVP_EncryptInit_ex / EVP_DecryptInit_ex afterward.
|===


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