Mini Shell

.\" Automatically generated by Pod::Man 4.14 (Pod::Simple 3.42)
.\"
.\" Standard preamble:
.\" ========================================================================
.de Sp \" Vertical space (when we can't use .PP)
.if t .sp .5v
.if n .sp
..
.de Vb \" Begin verbatim text
.ft CW
.nf
.ne \\$1
..
.de Ve \" End verbatim text
.ft R
.fi
..
.\" Set up some character translations and predefined strings.  \*(-- will
.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
.\" double quote, and \*(R" will give a right double quote.  \*(C+ will
.\" give a nicer C++.  Capital omega is used to do unbreakable dashes and
.\" therefore won't be available.  \*(C` and \*(C' expand to `' in nroff,
.\" nothing in troff, for use with C<>.
.tr \(*W-
.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
.ie n \{\
.    ds -- \(*W-
.    ds PI pi
.    if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
.    if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\"  diablo 12 pitch
.    ds L" ""
.    ds R" ""
.    ds C` ""
.    ds C' ""
'br\}
.el\{\
.    ds -- \|\(em\|
.    ds PI \(*p
.    ds L" ``
.    ds R" ''
.    ds C`
.    ds C'
'br\}
.\"
.\" Escape single quotes in literal strings from groff's Unicode transform.
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\"
.\" If the F register is >0, we'll generate index entries on stderr for
.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
.\" entries marked with X<> in POD.  Of course, you'll have to process the
.\" output yourself in some meaningful fashion.
.\"
.\" Avoid warning from groff about undefined register 'F'.
.de IX
..
.nr rF 0
.if \n(.g .if rF .nr rF 1
.if (\n(rF:(\n(.g==0)) \{\
.    if \nF \{\
.        de IX
.        tm Index:\\$1\t\\n%\t"\\$2"
..
.        if !\nF==2 \{\
.            nr % 0
.            nr F 2
.        \}
.    \}
.\}
.rr rF
.\"
.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
.\" Fear.  Run.  Save yourself.  No user-serviceable parts.
.    \" fudge factors for nroff and troff
.if n \{\
.    ds #H 0
.    ds #V .8m
.    ds #F .3m
.    ds #[ \f1
.    ds #] \fP
.\}
.if t \{\
.    ds #H ((1u-(\\\\n(.fu%2u))*.13m)
.    ds #V .6m
.    ds #F 0
.    ds #[ \&
.    ds #] \&
.\}
.    \" simple accents for nroff and troff
.if n \{\
.    ds ' \&
.    ds ` \&
.    ds ^ \&
.    ds , \&
.    ds ~ ~
.    ds /
.\}
.if t \{\
.    ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
.    ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
.    ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
.    ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
.    ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
.    ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
.\}
.    \" troff and (daisy-wheel) nroff accents
.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
.ds 8 \h'\*(#H'\(*b\h'-\*(#H'
.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
.ds ae a\h'-(\w'a'u*4/10)'e
.ds Ae A\h'-(\w'A'u*4/10)'E
.    \" corrections for vroff
.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
.    \" for low resolution devices (crt and lpr)
.if \n(.H>23 .if \n(.V>19 \
\{\
.    ds : e
.    ds 8 ss
.    ds o a
.    ds d- d\h'-1'\(ga
.    ds D- D\h'-1'\(hy
.    ds th \o'bp'
.    ds Th \o'LP'
.    ds ae ae
.    ds Ae AE
.\}
.rm #[ #] #H #V #F C
.\" ========================================================================
.\"
.IX Title "EVP_PBE_CIPHERINIT 3ossl"
.TH EVP_PBE_CIPHERINIT 3ossl "2024-09-03" "3.1.7+quic" "OpenSSL"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
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
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& #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);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
.SS "\s-1PBE\s0 operations"
.IX Subsection "PBE operations"
\&\fBEVP_PBE_CipherInit()\fR and \fBEVP_PBE_CipherInit_ex()\fR initialise an \fB\s-1EVP_CIPHER_CTX\s0\fR
\&\fIctx\fR for encryption (\fIen_de\fR=1) or decryption (\fIen_de\fR=0) using the password
\&\fIpass\fR of length \fIpasslen\fR. The \s-1PBE\s0 algorithm type and parameters are extracted
from an \s-1OID\s0 \fIpbe_obj\fR and parameters \fIparam\fR.
.PP
\&\fBEVP_PBE_CipherInit_ex()\fR also allows the application to specify a library context
\&\fIlibctx\fR and property query \fIpropq\fR to select appropriate algorithm
implementations.
.SS "\s-1PBE\s0 algorithm search"
.IX Subsection "PBE algorithm search"
\&\fBEVP_PBE_find()\fR and \fBEVP_PBE_find_ex()\fR search for a matching algorithm using two parameters:
.PP
1. An algorithm type \fItype\fR which can be:
.IP "\(bu" 4
\&\s-1EVP_PBE_TYPE_OUTER\s0 \- A \s-1PBE\s0 algorithm
.IP "\(bu" 4
\&\s-1EVP_PBE_TYPE_PRF\s0 \- A pseudo-random function
.IP "\(bu" 4
\&\s-1EVP_PBE_TYPE_KDF\s0 \- A key derivation function
.PP
2. A \fIpbe_nid\fR which can represent the algorithm identifier with parameters e.g.
\&\fBNID_pbeWithSHA1AndRC2_CBC\fR or an algorithm class e.g. \fBNID_pbes2\fR.
.PP
They return the algorithm's cipher \s-1ID\s0 \fIpcnid\fR, digest \s-1ID\s0 \fIpmnid\fR and a key
generation function for the algorithm \fIpkeygen\fR. \fBEVP_PBE_CipherInit_ex()\fR also
returns an extended key generation function \fIkeygen_ex\fR which takes a library
context and property query.
.PP
If a \s-1NULL\s0 is supplied for any of \fIpcnid\fR, \fIpmnid\fR, \fIpkeygen\fR or \fIpkeygen_ex\fR
then this parameter is not returned.
.SS "\s-1PBE\s0 algorithm add"
.IX Subsection "PBE algorithm add"
\&\fBEVP_PBE_alg_add_type()\fR and \fBEVP_PBE_alg_add()\fR add an algorithm to the list
of known algorithms. Their parameters have the same meaning as for
\&\fBEVP_PBE_find()\fR and \fBEVP_PBE_find_ex()\fR functions.
.SH "NOTES"
.IX Header "NOTES"
The arguments \fIpbe_obj\fR and \fIparam\fR to \fBEVP_PBE_CipherInit()\fR and \fBEVP_PBE_CipherInit_ex()\fR
together form an \fBX509_ALGOR\fR and can often be extracted directly from this structure.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
Return value is 1 for success and 0 if an error occurred.
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBPKCS5_PBE_keyivgen\fR\|(3),
\&\fBPKCS12_PBE_keyivgen_ex\fR\|(3),
\&\fBPKCS5_v2_PBE_keyivgen_ex\fR\|(3),
\&\fBPKCS12_pbe_crypt_ex\fR\|(3),
\&\fBPKCS12_create_ex\fR\|(3)
.SH "HISTORY"
.IX Header "HISTORY"
\&\fBEVP_PBE_CipherInit_ex()\fR and \fBEVP_PBE_find_ex()\fR were added in OpenSSL 3.0.
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2021\-2022 The OpenSSL Project Authors. All Rights Reserved.
.PP
Licensed under the Apache License 2.0 (the \*(L"License\*(R").  You may not use
this file except in compliance with the License.  You can obtain a copy
in the file \s-1LICENSE\s0 in the source distribution or at
<https://www.openssl.org/source/license.html>.