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136.TH x509 3 "2015-01-15" "1.0.1l" "OpenSSL"
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127.TH x509 3 "2014-10-15" "1.0.1j" "OpenSSL" |
128.\" For nroff, turn off justification. Always turn off hyphenation; it makes 129.\" way too many mistakes in technical documents. 130.if n .ad l 131.nh 132.SH "NAME" 133x509 \- X.509 certificate handling 134.SH "SYNOPSIS" 135.IX Header "SYNOPSIS" 136.Vb 1 137\& #include <openssl/x509.h> 138.Ve 139.SH "DESCRIPTION" 140.IX Header "DESCRIPTION" 141A X.509 certificate is a structured grouping of information about
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151an individual, a device, or anything one can imagine. A X.509 \s-1CRL
152\&\s0(certificate revocation list) is a tool to help determine if a
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142an 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 |
144certificate is still valid. The exact definition of those can be
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154found in the X.509 document from ITU-T, or in \s-1RFC3280\s0 from \s-1PKIX.\s0
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145found in the X.509 document from ITU-T, or in \s-1RFC3280\s0 from \s-1PKIX\s0. |
146In OpenSSL, the type X509 is used to express such a certificate, and
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156the type X509_CRL is used to express a \s-1CRL.\s0
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147the type X509_CRL is used to express a \s-1CRL\s0. |
148.PP 149A related structure is a certificate request, defined in PKCS#10 from
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159\&\s-1RSA\s0 Security, Inc, also reflected in \s-1RFC2896. \s0 In OpenSSL, the type
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150\&\s-1RSA\s0 Security, Inc, also reflected in \s-1RFC2896\s0. In OpenSSL, the type |
151X509_REQ is used to express such a certificate request. 152.PP 153To handle some complex parts of a certificate, there are the types 154X509_NAME (to express a certificate name), X509_ATTRIBUTE (to express 155a certificate attributes), X509_EXTENSION (to express a certificate 156extension) and a few more. 157.PP
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167Finally, there's the supertype X509_INFO, which can contain a \s-1CRL,\s0 a
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158Finally, there's the supertype X509_INFO, which can contain a \s-1CRL\s0, a |
159certificate and a corresponding private key. 160.PP 161\&\fBX509_\fR\fI...\fR, \fBd2i_X509_\fR\fI...\fR and \fBi2d_X509_\fR\fI...\fR handle X.509 162certificates, with some exceptions, shown below. 163.PP 164\&\fBX509_CRL_\fR\fI...\fR, \fBd2i_X509_CRL_\fR\fI...\fR and \fBi2d_X509_CRL_\fR\fI...\fR 165handle X.509 CRLs. 166.PP 167\&\fBX509_REQ_\fR\fI...\fR, \fBd2i_X509_REQ_\fR\fI...\fR and \fBi2d_X509_REQ_\fR\fI...\fR 168handle PKCS#10 certificate requests. 169.PP 170\&\fBX509_NAME_\fR\fI...\fR handle certificate names. 171.PP 172\&\fBX509_ATTRIBUTE_\fR\fI...\fR handle certificate attributes. 173.PP 174\&\fBX509_EXTENSION_\fR\fI...\fR handle certificate extensions. 175.SH "SEE ALSO" 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), 188\&\fIcrypto\fR\|(3), 189\&\fIx509v3\fR\|(3)
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