5 PKCS12_PBE_keyivgen, PKCS12_PBE_keyivgen_ex,
6 PKCS12_pbe_crypt, PKCS12_pbe_crypt_ex - PKCS#12 Password based encryption
10 #include <openssl/evp.h>
12 int PKCS12_PBE_keyivgen(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
13 ASN1_TYPE *param, const EVP_CIPHER *cipher,
14 const EVP_MD *md_type, int en_de);
15 int PKCS12_PBE_keyivgen_ex(EVP_CIPHER_CTX *ctx, const char *pass, int passlen,
16 ASN1_TYPE *param, const EVP_CIPHER *cipher,
17 const EVP_MD *md_type, int en_de,
18 OSSL_LIB_CTX *libctx, const char *propq);
19 unsigned char *PKCS12_pbe_crypt(const X509_ALGOR *algor,
20 const char *pass, int passlen,
21 const unsigned char *in, int inlen,
22 unsigned char **data, int *datalen,
24 unsigned char *PKCS12_pbe_crypt_ex(const X509_ALGOR *algor,
25 const char *pass, int passlen,
26 const unsigned char *in, int inlen,
27 unsigned char **data, int *datalen,
28 int en_de, OSSL_LIB_CTX *libctx,
33 PKCS12_PBE_keyivgen() and PKCS12_PBE_keyivgen_ex() take a password I<pass> of
34 length I<passlen>, parameters I<param> and a message digest function I<md_type>
35 and perform a key derivation according to PKCS#12. The resulting key is
36 then used to initialise the cipher context I<ctx> with a cipher I<cipher> for
37 encryption (I<en_de>=1) or decryption (I<en_de>=0).
39 PKCS12_PBE_keyivgen_ex() also allows the application to specify a library context
40 I<libctx> and property query I<propq> to select appropriate algorithm
43 PKCS12_pbe_crypt() and PKCS12_pbe_crypt_ex() will encrypt or decrypt a buffer
44 based on the algorithm in I<algor> and password I<pass> of length I<passlen>.
45 The input is from I<in> of length I<inlen> and output is into a malloc'd buffer
46 returned in I<*data> of length I<datalen>. The operation is determined by I<en_de>,
47 encryption (I<en_de>=1) or decryption (I<en_de>=0).
49 PKCS12_pbe_crypt_ex() allows the application to specify a library context
50 I<libctx> and property query I<propq> to select appropriate algorithm
53 I<pass> is the password used in the derivation of length I<passlen>. I<pass>
54 is an optional parameter and can be NULL. If I<passlen> is -1, then the
55 function will calculate the length of I<pass> using strlen().
57 I<salt> is the salt used in the derivation of length I<saltlen>. If the
58 I<salt> is NULL, then I<saltlen> must be 0. The function will not
59 attempt to calculate the length of the I<salt> because it is not assumed to
62 I<iter> is the iteration count and its value should be greater than or
63 equal to 1. RFC 2898 suggests an iteration count of at least 1000. Any
64 I<iter> less than 1 is treated as a single iteration.
66 I<digest> is the message digest function used in the derivation.
68 Functions ending in _ex() take optional parameters I<libctx> and I<propq> which
69 are used to select appropriate algorithm implementations.
73 The functions are typically used in PKCS#12 to encrypt objects.
75 These functions make no assumption regarding the given password.
76 It will simply be treated as a byte sequence.
80 PKCS12_PBE_keyivgen(), PKCS12_PBE_keyivgen_ex() return 1 on success or 0 on error.
82 PKCS12_pbe_crypt() and PKCS12_pbe_crypt_ex() return a buffer containing the
83 output or NULL if an error occurred.
87 IETF RFC 7292 (L<https://tools.ietf.org/html/rfc7292>)
91 L<EVP_PBE_CipherInit_ex(3)>,
92 L<PKCS8_encrypt_ex(3)>,
93 L<passphrase-encoding(7)>
97 PKCS12_PBE_keyivgen_ex() and PKCS12_pbe_crypt_ex() were added in OpenSSL 3.0.
101 Copyright 2014-2021 The OpenSSL Project Authors. All Rights Reserved.
103 Licensed under the Apache License 2.0 (the "License"). You may not use
104 this file except in compliance with the License. You can obtain a copy
105 in the file LICENSE in the source distribution or at
106 L<https://www.openssl.org/source/license.html>.