[#DES_ncbc_encrypt]
= DES_ncbc_encrypt
:mrdocs:

Encrypt or decrypt with DES in CBC mode, updating the IV (deprecated; prefer EVP).

== Synopsis

Declared in `<openssl/des.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[deprecated]]
void
DES_ncbc_encrypt(
    unsigned char const* input,
    unsigned char* output,
    long length,
    xref:DES_key_schedule.adoc[DES_key_schedule]* schedule,
    xref:DES_cblock.adoc[DES_cblock]* ivec,
    int 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
| *input*
| Input bytes of length `length.`
| *output*
| Output buffer of length `length.`
| *length*
| Number of bytes to process.
| *schedule*
| Expanded DES key from DES_set_key() or related.
| *ivec*
| 8‐byte IV updated in place to the last ciphertext block.
| *enc*
| DES_ENCRYPT to encrypt, or DES_DECRYPT to decrypt.
|===


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