Derive a key and IV for password‐based encryption and initialize cctx (library‐context variant).

Synopsis

Declared in <openssl/evp.h>

int
PKCS5_PBE_keyivgen_ex(
    EVP_CIPHER_CTX* cctx,
    char const* pass,
    int passlen,
    ASN1_TYPE* param,
    EVP_CIPHER const* cipher,
    EVP_MD const* md,
    int en_de,
    OSSL_LIB_CTX* libctx,
    char const* propq);

Return Value

1 on success, or 0 on failure.

Parameters

Name

Description

cctx

Cipher context to initialize with the derived key and IV.

pass

Password bytes, or NULL.

passlen

Length of pass in bytes, or ‐1 to use strlen(pass).

param

ASN.1 PBE parameters (salt, iteration count, and related fields).

cipher

Cipher algorithm used for PBE.

md

Digest used by the PBE key derivation.

en_de

1 to encrypt, or 0 to decrypt.

libctx

Library context for provider‐aware derivation, or NULL for the default.

propq

Property query string, or NULL.

Created with MrDocs