1EVP_PBE_CIPHERINIT(3ossl)           OpenSSL          EVP_PBE_CIPHERINIT(3ossl)
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NAME

6       EVP_PBE_CipherInit, EVP_PBE_CipherInit_ex, EVP_PBE_find,
7       EVP_PBE_find_ex - Password based encryption routines
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SYNOPSIS

10        #include <openssl/evp.h>
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12        int EVP_PBE_CipherInit(ASN1_OBJECT *pbe_obj, const char *pass, int passlen,
13                               ASN1_TYPE *param, EVP_CIPHER_CTX *ctx, int en_de);
14        int EVP_PBE_CipherInit_ex(ASN1_OBJECT *pbe_obj, const char *pass, int passlen,
15                                  ASN1_TYPE *param, EVP_CIPHER_CTX *ctx, int en_de,
16                                  OSSL_LIB_CTX *libctx, const char *propq);
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18        int EVP_PBE_find(int type, int pbe_nid, int *pcnid, int *pmnid,
19                         EVP_PBE_KEYGEN **pkeygen);
20        int EVP_PBE_find_ex(int type, int pbe_nid, int *pcnid, int *pmnid,
21                            EVP_PBE_KEYGEN **pkeygen, EVP_PBE_KEYGEN_EX **keygen_ex);
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DESCRIPTION

24   PBE operations
25       EVP_PBE_CipherInit() and EVP_PBE_CipherInit_ex() initialise an
26       EVP_CIPHER_CTX ctx for encryption (en_de=1) or decryption (en_de=0)
27       using the password pass of length passlen. The PBE algorithm type and
28       parameters are extracted from an OID pbe_obj and parameters param.
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30       EVP_PBE_CipherInit_ex() also allows the application to specify a
31       library context libctx and property query propq to select appropriate
32       algorithm implementations.
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34   PBE algorithm search
35       EVP_PBE_find() and EVP_PBE_find_ex() search for a matching algorithm
36       using two parameters:
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38       1. An algorithm type type which can be:
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40       •   EVP_PBE_TYPE_OUTER - A PBE algorithm
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42       •   EVP_PBE_TYPE_PRF - A pseudo-random function
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44       •   EVP_PBE_TYPE_KDF - A key derivation function
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46       2. A pbe_nid which can represent the algorithm identifier with
47       parameters e.g.  NID_pbeWithSHA1AndRC2_CBC or an algorithm class e.g.
48       NID_pbes2.
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50       They return the algorithm's cipher ID pcnid, digest ID pmnid and a key
51       generation function for the algorithm pkeygen. EVP_PBE_CipherInit_ex()
52       also returns an extended key generation function keygen_ex which takes
53       a library context and property query.
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55       If a NULL is supplied for any of pcnid, pmnid, pkeygen or pkeygen_ex
56       then this parameter is not returned.
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NOTES

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

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

67       PKCS5_PBE_keyivgen(3), PKCS12_PBE_keyivgen_ex(3),
68       PKCS5_v2_PBE_keyivgen_ex(3), PKCS12_pbe_crypt_ex(3),
69       PKCS12_create_ex(3)
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HISTORY

72       EVP_PBE_CipherInit_ex() and EVP_PBE_find_ex() were added in OpenSSL
73       3.0.
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76       Copyright 2021 The OpenSSL Project Authors. All Rights Reserved.
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78       Licensed under the Apache License 2.0 (the "License").  You may not use
79       this file except in compliance with the License.  You can obtain a copy
80       in the file LICENSE in the source distribution or at
81       <https://www.openssl.org/source/license.html>.
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853.0.5                             2022-11-01         EVP_PBE_CIPHERINIT(3ossl)
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