Encrypt or decrypt with DES in 64‐bit CFB mode (deprecated; prefer EVP).

Synopsis

Declared in <openssl/des.h>

[[deprecated]]
void
DES_cfb64_encrypt(
    unsigned char const* in,
    unsigned char* out,
    long length,
    DES_key_schedule* schedule,
    DES_cblock* ivec,
    int* num,
    int enc);
Warning

Deprecated. Use of this entity is allowed but discouraged.

Parameters

Name

Description

in

Input bytes of length length.

out

Output buffer of length length.

length

Number of bytes to process.

schedule

Expanded DES key schedule.

ivec

8‐byte IV updated in place.

num

Feedback offset into the IV (updated; typically starts at 0).

enc

DES_ENCRYPT to encrypt, or DES_DECRYPT to decrypt.

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