1 .\" Automatically generated by Pod::Man 2.12 (Pod::Simple 3.05)
4 .\" ========================================================================
5 .de Sh \" Subsection heading
13 .de Sp \" Vertical space (when we can't use .PP)
17 .de Vb \" Begin verbatim text
22 .de Ve \" End verbatim text
26 .\" Set up some character translations and predefined strings. \*(-- will
27 .\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
28 .\" double quote, and \*(R" will give a right double quote. \*(C+ will
29 .\" give a nicer C++. Capital omega is used to do unbreakable dashes and
30 .\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff,
31 .\" nothing in troff, for use with C<>.
33 .ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
37 . if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
38 . if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
51 .\" If the F register is turned on, we'll generate index entries on stderr for
52 .\" titles (.TH), headers (.SH), subsections (.Sh), items (.Ip), and index
53 .\" entries marked with X<> in POD. Of course, you'll have to process the
54 .\" output yourself in some meaningful fashion.
57 . tm Index:\\$1\t\\n%\t"\\$2"
63 .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
64 .\" Fear. Run. Save yourself. No user-serviceable parts.
65 . \" fudge factors for nroff and troff
74 . ds #H ((1u-(\\\\n(.fu%2u))*.13m)
80 . \" simple accents for nroff and troff
90 . ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
91 . ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
92 . ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
93 . ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
94 . ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
95 . ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
97 . \" troff and (daisy-wheel) nroff accents
98 .ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
99 .ds 8 \h'\*(#H'\(*b\h'-\*(#H'
100 .ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
101 .ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
102 .ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
103 .ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
104 .ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
105 .ds ae a\h'-(\w'a'u*4/10)'e
106 .ds Ae A\h'-(\w'A'u*4/10)'E
107 . \" corrections for vroff
108 .if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
109 .if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
110 . \" for low resolution devices (crt and lpr)
111 .if \n(.H>23 .if \n(.V>19 \
124 .\" ========================================================================
127 .TH x509 3 "2007-10-24" "0.9.8g" "OpenSSL"
128 .\" For nroff, turn off justification. Always turn off hyphenation; it makes
129 .\" way too many mistakes in technical documents.
133 x509 \- X.509 certificate handling
135 .IX Header "SYNOPSIS"
137 \& #include <openssl/x509.h>
140 .IX Header "DESCRIPTION"
141 A X.509 certificate is a structured grouping of information about
142 an individual, a device, or anything one can imagine. A X.509 \s-1CRL\s0
143 (certificate revocation list) is a tool to help determine if a
144 certificate is still valid. The exact definition of those can be
145 found in the X.509 document from ITU-T, or in \s-1RFC3280\s0 from \s-1PKIX\s0.
146 In OpenSSL, the type X509 is used to express such a certificate, and
147 the type X509_CRL is used to express a \s-1CRL\s0.
149 A related structure is a certificate request, defined in PKCS#10 from
150 \&\s-1RSA\s0 Security, Inc, also reflected in \s-1RFC2896\s0. In OpenSSL, the type
151 X509_REQ is used to express such a certificate request.
153 To handle some complex parts of a certificate, there are the types
154 X509_NAME (to express a certificate name), X509_ATTRIBUTE (to express
155 a certificate attributes), X509_EXTENSION (to express a certificate
156 extension) and a few more.
158 Finally, there's the supertype X509_INFO, which can contain a \s-1CRL\s0, a
159 certificate and a corresponding private key.
161 \&\fBX509_\fR\fI...\fR, \fBd2i_X509_\fR\fI...\fR and \fBi2d_X509_\fR\fI...\fR handle X.509
162 certificates, with some exceptions, shown below.
164 \&\fBX509_CRL_\fR\fI...\fR, \fBd2i_X509_CRL_\fR\fI...\fR and \fBi2d_X509_CRL_\fR\fI...\fR
167 \&\fBX509_REQ_\fR\fI...\fR, \fBd2i_X509_REQ_\fR\fI...\fR and \fBi2d_X509_REQ_\fR\fI...\fR
168 handle PKCS#10 certificate requests.
170 \&\fBX509_NAME_\fR\fI...\fR handle certificate names.
172 \&\fBX509_ATTRIBUTE_\fR\fI...\fR handle certificate attributes.
174 \&\fBX509_EXTENSION_\fR\fI...\fR handle certificate extensions.
176 .IX Header "SEE ALSO"
177 \&\fIX509_NAME_ENTRY_get_object\fR\|(3),
178 \&\fIX509_NAME_add_entry_by_txt\fR\|(3),
179 \&\fIX509_NAME_add_entry_by_NID\fR\|(3),
180 \&\fIX509_NAME_print_ex\fR\|(3),
181 \&\fIX509_NAME_new\fR\|(3),
182 \&\fId2i_X509\fR\|(3),
183 \&\fId2i_X509_ALGOR\fR\|(3),
184 \&\fId2i_X509_CRL\fR\|(3),
185 \&\fId2i_X509_NAME\fR\|(3),
186 \&\fId2i_X509_REQ\fR\|(3),
187 \&\fId2i_X509_SIG\fR\|(3),