314 lines
12 KiB
Groff
314 lines
12 KiB
Groff
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.\" ========================================================================
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.\"
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.IX Title "OPENSSL-VERIFY 1"
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.TH OPENSSL-VERIFY 1 "2020-03-02" "3.0.0-dev" "OpenSSL"
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.\" For nroff, turn off justification. Always turn off hyphenation; it makes
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.\" way too many mistakes in technical documents.
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.if n .ad l
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.nh
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.SH "NAME"
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openssl\-verify \- Utility to verify certificates
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.SH "SYNOPSIS"
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.IX Header "SYNOPSIS"
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\&\fBopenssl\fR \fBverify\fR
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[\fB\-help\fR]
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[\fB\-CRLfile\fR \fIfile\fR]
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[\fB\-crl_download\fR]
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[\fB\-show_chain\fR]
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[\fB\-sm2\-id\fR \fIhexstring\fR]
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[\fB\-sm2\-hex\-id\fR \fIhexstring\fR]
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[\fB\-verbose\fR]
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[\fB\-trusted\fR \fIfile\fR]
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[\fB\-untrusted\fR \fIfile\fR]
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[\fB\-nameopt\fR \fIoption\fR]
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[\fB\-CAfile\fR \fIfile\fR]
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[\fB\-no\-CAfile\fR]
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[\fB\-CApath\fR \fIdir\fR]
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[\fB\-no\-CApath\fR]
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[\fB\-CAstore\fR \fIuri\fR]
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[\fB\-no\-CAstore\fR]
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[\fB\-engine\fR \fIid\fR]
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[\fB\-allow_proxy_certs\fR]
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[\fB\-attime\fR \fItimestamp\fR]
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[\fB\-no_check_time\fR]
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[\fB\-check_ss_sig\fR]
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[\fB\-crl_check\fR]
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[\fB\-crl_check_all\fR]
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[\fB\-explicit_policy\fR]
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[\fB\-extended_crl\fR]
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[\fB\-ignore_critical\fR]
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[\fB\-inhibit_any\fR]
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[\fB\-inhibit_map\fR]
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[\fB\-partial_chain\fR]
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[\fB\-policy\fR \fIarg\fR]
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[\fB\-policy_check\fR]
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[\fB\-policy_print\fR]
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[\fB\-purpose\fR \fIpurpose\fR]
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[\fB\-suiteB_128\fR]
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[\fB\-suiteB_128_only\fR]
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[\fB\-suiteB_192\fR]
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[\fB\-trusted_first\fR]
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[\fB\-no_alt_chains\fR]
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[\fB\-use_deltas\fR]
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[\fB\-auth_level\fR \fInum\fR]
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[\fB\-verify_depth\fR \fInum\fR]
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[\fB\-verify_email\fR \fIemail\fR]
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[\fB\-verify_hostname\fR \fIhostname\fR]
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[\fB\-verify_ip\fR \fIip\fR]
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[\fB\-verify_name\fR \fIname\fR]
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[\fB\-x509_strict\fR]
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[\fB\-issuer_checks\fR]
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.PP
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[\fB\-\-\fR]
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[\fIcertificate\fR ...]
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.SH "DESCRIPTION"
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.IX Header "DESCRIPTION"
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This command verifies certificate chains.
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.SH "OPTIONS"
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.IX Header "OPTIONS"
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.IP "\fB\-help\fR" 4
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.IX Item "-help"
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Print out a usage message.
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.IP "\fB\-CAfile\fR \fIfile\fR, \fB\-no\-CAfile\fR, \fB\-CApath\fR \fIdir\fR, \fB\-no\-CApath\fR" 4
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.IX Item "-CAfile file, -no-CAfile, -CApath dir, -no-CApath"
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See \*(L"Trusted Certificate Options\*(R" in \fIopenssl\fR\|(1) for more information.
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.IP "\fB\-CRLfile\fR \fIfile\fR" 4
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.IX Item "-CRLfile file"
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The \fIfile\fR should contain one or more CRLs in \s-1PEM\s0 format.
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This option can be specified more than once to include CRLs from multiple
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\&\fIfile\fRs.
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.IP "\fB\-crl_download\fR" 4
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.IX Item "-crl_download"
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Attempt to download \s-1CRL\s0 information for this certificate.
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.IP "\fB\-show_chain\fR" 4
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.IX Item "-show_chain"
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Display information about the certificate chain that has been built (if
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successful). Certificates in the chain that came from the untrusted list will be
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flagged as \*(L"untrusted\*(R".
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.IP "\fB\-sm2\-id\fR \fIhexstring\fR" 4
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.IX Item "-sm2-id hexstring"
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Specify the \s-1ID\s0 string to use when verifying an \s-1SM2\s0 certificate. The \s-1ID\s0 string is
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required by the \s-1SM2\s0 signature algorithm for signing and verification.
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.IP "\fB\-sm2\-hex\-id\fR \fIhexstring\fR" 4
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.IX Item "-sm2-hex-id hexstring"
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Specify a binary \s-1ID\s0 string to use when signing or verifying using an \s-1SM2\s0
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certificate. The argument for this option is string of hexadecimal digits.
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.IP "\fB\-verbose\fR" 4
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.IX Item "-verbose"
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Print extra information about the operations being performed.
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.IP "\fB\-trusted\fR \fIfile\fR" 4
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.IX Item "-trusted file"
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A file of trusted certificates.
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.IP "\fB\-untrusted\fR \fIfile\fR" 4
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.IX Item "-untrusted file"
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A file of untrusted certificates.
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.IP "\fB\-nameopt\fR \fIoption\fR" 4
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.IX Item "-nameopt option"
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This specifies how the subject or issuer names are displayed.
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See \*(L"Name Format Options\*(R" in \fIopenssl\fR\|(1) for details.
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.IP "\fB\-engine\fR \fIid\fR" 4
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.IX Item "-engine id"
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See \*(L"Engine Options\*(R" in \fIopenssl\fR\|(1).
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To load certificates or CRLs that require engine support, specify the
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\&\fB\-engine\fR option before any of the
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\&\fB\-trusted\fR, \fB\-untrusted\fR or \fB\-CRLfile\fR options.
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.IP "\fB\-CAfile\fR \fIfile\fR, \fB\-no\-CAfile\fR, \fB\-CApath\fR \fIdir\fR, \fB\-no\-CApath\fR, \fB\-CAstore\fR \fIuri\fR, \fB\-no\-CAstore\fR" 4
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.IX Item "-CAfile file, -no-CAfile, -CApath dir, -no-CApath, -CAstore uri, -no-CAstore"
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See \*(L"Trusted Certificate Options\*(R" in \fIopenssl\fR\|(1) for details.
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.IP "\fB\-allow_proxy_certs\fR, \fB\-attime\fR, \fB\-no_check_time\fR, \fB\-check_ss_sig\fR, \fB\-crl_check\fR, \fB\-crl_check_all\fR, \fB\-explicit_policy\fR, \fB\-extended_crl\fR, \fB\-ignore_critical\fR, \fB\-inhibit_any\fR, \fB\-inhibit_map\fR, \fB\-no_alt_chains\fR, \fB\-partial_chain\fR, \fB\-policy\fR, \fB\-policy_check\fR, \fB\-policy_print\fR, \fB\-purpose\fR, \fB\-suiteB_128\fR, \fB\-suiteB_128_only\fR, \fB\-suiteB_192\fR, \fB\-trusted_first\fR, \fB\-use_deltas\fR, \fB\-auth_level\fR, \fB\-verify_depth\fR, \fB\-verify_email\fR, \fB\-verify_hostname\fR, \fB\-verify_ip\fR, \fB\-verify_name\fR, \fB\-x509_strict\fR \fB\-issuer_checks\fR" 4
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.IX Item "-allow_proxy_certs, -attime, -no_check_time, -check_ss_sig, -crl_check, -crl_check_all, -explicit_policy, -extended_crl, -ignore_critical, -inhibit_any, -inhibit_map, -no_alt_chains, -partial_chain, -policy, -policy_check, -policy_print, -purpose, -suiteB_128, -suiteB_128_only, -suiteB_192, -trusted_first, -use_deltas, -auth_level, -verify_depth, -verify_email, -verify_hostname, -verify_ip, -verify_name, -x509_strict -issuer_checks"
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Set various options of certificate chain verification.
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See \*(L"Verification Options\*(R" in \fIopenssl\fR\|(1) for details.
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.IP "\fB\-\-\fR" 4
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.IX Item "--"
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Indicates the last option. All arguments following this are assumed to be
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certificate files. This is useful if the first certificate filename begins
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with a \fB\-\fR.
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.IP "\fIcertificate\fR ..." 4
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.IX Item "certificate ..."
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One or more certificates to verify. If no certificates are given,
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this command will attempt to read a certificate from standard input.
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Certificates must be in \s-1PEM\s0 format.
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If a certificate chain has multiple problems, this program tries to
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display all of them.
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.SH "DIAGNOSTICS"
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.IX Header "DIAGNOSTICS"
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When a verify operation fails the output messages can be somewhat cryptic. The
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general form of the error message is:
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.PP
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.Vb 2
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\& server.pem: /C=AU/ST=Queensland/O=CryptSoft Pty Ltd/CN=Test CA (1024 bit)
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\& error 24 at 1 depth lookup:invalid CA certificate
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.Ve
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.PP
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The first line contains the name of the certificate being verified followed by
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the subject name of the certificate. The second line contains the error number
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and the depth. The depth is number of the certificate being verified when a
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problem was detected starting with zero for the certificate being verified itself
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then 1 for the \s-1CA\s0 that signed the certificate and so on. Finally a text version
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of the error number is presented.
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.PP
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A list of the error codes and messages can be found in
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\&\fIX509_STORE_CTX_get_error\fR\|(3); the full list is defined in the header file
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\&\fI<openssl/x509_vfy.h>\fR.
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.PP
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This command ignores many errors, in order to allow all the problems with a
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certificate chain to be determined.
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.SH "BUGS"
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.IX Header "BUGS"
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Although the issuer checks are a considerable improvement over the old
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technique they still suffer from limitations in the underlying X509_LOOKUP
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\&\s-1API\s0. One consequence of this is that trusted certificates with matching
|
||
|
|
subject name must either appear in a file (as specified by the \fB\-CAfile\fR
|
||
|
|
option), a directory (as specified by \fB\-CApath\fR), or a store (as specified
|
||
|
|
by \fB\-CAstore\fR). If they occur in more than one location then only the
|
||
|
|
certificates in the file will be recognised.
|
||
|
|
.PP
|
||
|
|
Previous versions of OpenSSL assume certificates with matching subject
|
||
|
|
name are identical and mishandled them.
|
||
|
|
.PP
|
||
|
|
Previous versions of this documentation swapped the meaning of the
|
||
|
|
\&\fBX509_V_ERR_UNABLE_TO_GET_ISSUER_CERT\fR and
|
||
|
|
\&\fBX509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY\fR error codes.
|
||
|
|
.SH "SEE ALSO"
|
||
|
|
.IX Header "SEE ALSO"
|
||
|
|
\&\fIopenssl\fR\|(1),
|
||
|
|
\&\fIopenssl\-x509\fR\|(1),
|
||
|
|
\&\fIossl_store\-file\fR\|(7)
|
||
|
|
.SH "HISTORY"
|
||
|
|
.IX Header "HISTORY"
|
||
|
|
The \fB\-show_chain\fR option was added in OpenSSL 1.1.0.
|
||
|
|
.PP
|
||
|
|
The \fB\-sm2\-id\fR and \fB\-sm2\-hex\-id\fR options were added in OpenSSL 3.0.
|
||
|
|
.SH "COPYRIGHT"
|
||
|
|
.IX Header "COPYRIGHT"
|
||
|
|
Copyright 2000\-2019 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>.
|