EVP_PBE_CipherInit, EVP_PBE_CipherInit_ex, EVP_PBE_find, EVP_PBE_find_ex, EVP_PBE_alg_add_type,

       Copyright 2021 The OpenSSL Project Authors. All Rights Reserved.

       Licensed under the Apache License 2.0 (the "License").  You may not use this file  except  in  compliance
       with  the  License.   You  can  obtain  a  copy  in  the  file  LICENSE  in the source distribution or at
       <https://www.openssl.org/source/license.html>.

3.5.0                                              2025-06-04                           EVP_PBE_CIPHERINIT(3SSL)

PBEoperationsEVP_PBE_CipherInit() and EVP_PBE_CipherInit_ex() initialise an EVP_CIPHER_CTXctx for encryption
       (en_de=1) or decryption (en_de=0) using the password pass of length passlen. The PBE algorithm type and
       parameters are extracted from an OID pbe_obj and parameters param.

       EVP_PBE_CipherInit_ex() also allows the application to specify a library context libctx and property
       query propq to select appropriate algorithm implementations.

   PBEalgorithmsearchEVP_PBE_find() and EVP_PBE_find_ex() search for a matching algorithm using two parameters:

       1. An algorithm type type which can be:

       •   EVP_PBE_TYPE_OUTER - A PBE algorithm

       •   EVP_PBE_TYPE_PRF - A pseudo-random function

       •   EVP_PBE_TYPE_KDF - A key derivation function

       2. A pbe_nid which can represent the algorithm identifier with parameters e.g.  NID_pbeWithSHA1AndRC2_CBC
       or an algorithm class e.g. NID_pbes2.

       They  return  the  algorithm's  cipher  ID  pcnid,  digest ID pmnid and a key generation function for the
       algorithm pkeygen. EVP_PBE_CipherInit_ex() also returns an extended  key  generation  function  keygen_ex
       which takes a library context and property query.

       If a NULL is supplied for any of pcnid, pmnid, pkeygen or pkeygen_ex then this parameter is not returned.

   PBEalgorithmaddEVP_PBE_alg_add_type()  and  EVP_PBE_alg_add()  add  an  algorithm to the list of known algorithms. Their
       parameters have the same meaning as for EVP_PBE_find() and EVP_PBE_find_ex() functions.

EVP_PBE_CipherInit_ex() and EVP_PBE_find_ex() were added in OpenSSL 3.0.

       EVP_PBE_CipherInit, EVP_PBE_CipherInit_ex, EVP_PBE_find, EVP_PBE_find_ex, EVP_PBE_alg_add_type,
       EVP_PBE_alg_add - Password based encryption routines

       The arguments pbe_obj and param to EVP_PBE_CipherInit()  and  EVP_PBE_CipherInit_ex()  together  form  an
       X509_ALGOR and can often be extracted directly from this structure.

       Return value is 1 for success and 0 if an error occurred.

PKCS5_PBE_keyivgen(3),  PKCS12_PBE_keyivgen_ex(3),  PKCS5_v2_PBE_keyivgen_ex(3),  PKCS12_pbe_crypt_ex(3),
       PKCS12_create_ex(3)

        #include <openssl/evp.h>

        int EVP_PBE_CipherInit(ASN1_OBJECT *pbe_obj, const char *pass, int passlen,
                               ASN1_TYPE *param, EVP_CIPHER_CTX *ctx, int en_de);
        int EVP_PBE_CipherInit_ex(ASN1_OBJECT *pbe_obj, const char *pass, int passlen,
                                  ASN1_TYPE *param, EVP_CIPHER_CTX *ctx, int en_de,
                                  OSSL_LIB_CTX *libctx, const char *propq);

        int EVP_PBE_find(int type, int pbe_nid, int *pcnid, int *pmnid,
                         EVP_PBE_KEYGEN **pkeygen);
        int EVP_PBE_find_ex(int type, int pbe_nid, int *pcnid, int *pmnid,
                            EVP_PBE_KEYGEN **pkeygen, EVP_PBE_KEYGEN_EX **keygen_ex);

        int EVP_PBE_alg_add_type(int pbe_type, int pbe_nid, int cipher_nid,
                                 int md_nid, EVP_PBE_KEYGEN *keygen);
        int EVP_PBE_alg_add(int nid, const EVP_CIPHER *cipher, const EVP_MD *md,
                            EVP_PBE_KEYGEN *keygen);