2 {- OpenSSL::safe::output_do_not_edit_headers(); -}
6 openssl-verify - Utility to verify certificates
15 [B<-sm2-id> I<hexstring>]
16 [B<-sm2-hex-id> I<hexstring>]
19 [B<-untrusted> I<file>]
20 {- $OpenSSL::safe::opt_name_synopsis -}
21 {- $OpenSSL::safe::opt_trust_synopsis -}
22 {- $OpenSSL::safe::opt_engine_synopsis -}
23 {- $OpenSSL::safe::opt_v_synopsis -}
27 =for openssl ifdef engine sm2-id sm2-hex-id
31 This command verifies certificate chains.
39 Print out a usage message.
41 =item B<-CAfile> I<file>, B<-no-CAfile>, B<-CApath> I<dir>, B<-no-CApath>
43 See L<openssl(1)/Trusted Certificate Options> for more information.
45 =item B<-CRLfile> I<file>
47 The I<file> should contain one or more CRLs in PEM format.
48 This option can be specified more than once to include CRLs from multiple
51 =item B<-crl_download>
53 Attempt to download CRL information for this certificate.
57 Display information about the certificate chain that has been built (if
58 successful). Certificates in the chain that came from the untrusted list will be
59 flagged as "untrusted".
61 =item B<-sm2-id> I<hexstring>
63 Specify the ID string to use when verifying an SM2 certificate. The ID string is
64 required by the SM2 signature algorithm for signing and verification.
66 =item B<-sm2-hex-id> I<hexstring>
68 Specify a binary ID string to use when signing or verifying using an SM2
69 certificate. The argument for this option is string of hexadecimal digits.
73 Print extra information about the operations being performed.
75 =item B<-trusted> I<file>
77 A file of trusted certificates.
79 =item B<-untrusted> I<file>
81 A file of untrusted certificates.
83 {- $OpenSSL::safe::opt_name_item -}
85 {- $OpenSSL::safe::opt_engine_item -}
86 To load certificates or CRLs that require engine support, specify the
87 B<-engine> option before any of the
88 B<-trusted>, B<-untrusted> or B<-CRLfile> options.
90 {- $OpenSSL::safe::opt_trust_item -}
92 {- $OpenSSL::safe::opt_v_item -}
96 Indicates the last option. All arguments following this are assumed to be
97 certificate files. This is useful if the first certificate filename begins
100 =item I<certificate> ...
102 One or more certificates to verify. If no certificates are given,
103 this command will attempt to read a certificate from standard input.
104 Certificates must be in PEM format.
105 If a certificate chain has multiple problems, this program tries to
112 When a verify operation fails the output messages can be somewhat cryptic. The
113 general form of the error message is:
115 server.pem: /C=AU/ST=Queensland/O=CryptSoft Pty Ltd/CN=Test CA (1024 bit)
116 error 24 at 1 depth lookup:invalid CA certificate
118 The first line contains the name of the certificate being verified followed by
119 the subject name of the certificate. The second line contains the error number
120 and the depth. The depth is number of the certificate being verified when a
121 problem was detected starting with zero for the certificate being verified itself
122 then 1 for the CA that signed the certificate and so on. Finally a text version
123 of the error number is presented.
125 A list of the error codes and messages can be found in
126 L<X509_STORE_CTX_get_error(3)>; the full list is defined in the header file
127 F<< <openssl/x509_vfy.h> >>.
129 This command ignores many errors, in order to allow all the problems with a
130 certificate chain to be determined.
134 Although the issuer checks are a considerable improvement over the old
135 technique they still suffer from limitations in the underlying X509_LOOKUP
136 API. One consequence of this is that trusted certificates with matching
137 subject name must either appear in a file (as specified by the B<-CAfile>
138 option), a directory (as specified by B<-CApath>), or a store (as specified
139 by B<-CAstore>). If they occur in more than one location then only the
140 certificates in the file will be recognised.
142 Previous versions of OpenSSL assume certificates with matching subject
143 name are identical and mishandled them.
145 Previous versions of this documentation swapped the meaning of the
146 B<X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT> and
147 B<X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY> error codes.
153 L<ossl_store-file(7)>
157 The B<-show_chain> option was added in OpenSSL 1.1.0.
159 The B<-sm2-id> and B<-sm2-hex-id> options were added in OpenSSL 3.0.
163 Copyright 2000-2019 The OpenSSL Project Authors. All Rights Reserved.
165 Licensed under the Apache License 2.0 (the "License"). You may not use
166 this file except in compliance with the License. You can obtain a copy
167 in the file LICENSE in the source distribution or at
168 L<https://www.openssl.org/source/license.html>.