[#Camellia_cfb1_encrypt]
= Camellia_cfb1_encrypt
:mrdocs:

Encrypt or decrypt data with Camellia in 1‐bit CFB mode (deprecated).

== Synopsis

Declared in `<openssl/camellia.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[deprecated]]
void
Camellia_cfb1_encrypt(
    unsigned char const* in,
    unsigned char* out,
    size_t length,
    xref:CAMELLIA_KEY.adoc[CAMELLIA_KEY] const* key,
    unsigned char* ivec,
    int* num,
    int const enc);
----

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

[cols="1,4"]
|===
| Name| Description
| *in*
| Input buffer of `length` bytes.
| *out*
| Output buffer of at least `length` bytes (may equal `in).`
| *length*
| Number of bytes to process.
| *key*
| Expanded Camellia key from Camellia_set_key().
| *ivec*
| 16‐byte IV; updated with running feedback state on return.
| *num*
| Bit offset into the feedback buffer (0–7); updated on return.
| *enc*
| Non‐zero to encrypt, zero to decrypt.
|===


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