1 .\" $NetBSD: CMS_get0_SignerInfos.3,v 1.14 2015/06/12 17:01:13 christos Exp $
3 .\" Automatically generated by Pod::Man 2.28 (Pod::Simple 3.28)
6 .\" ========================================================================
7 .de Sp \" Vertical space (when we can't use .PP)
11 .de Vb \" Begin verbatim text
16 .de Ve \" End verbatim text
20 .\" Set up some character translations and predefined strings. \*(-- will
21 .\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
22 .\" double quote, and \*(R" will give a right double quote. \*(C+ will
23 .\" give a nicer C++. Capital omega is used to do unbreakable dashes and
24 .\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff,
25 .\" nothing in troff, for use with C<>.
27 .ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
31 . if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
32 . if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
47 .\" Escape single quotes in literal strings from groff's Unicode transform.
51 .\" If the F register is turned on, we'll generate index entries on stderr for
52 .\" titles (.TH), headers (.SH), subsections (.SS), 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.
56 .\" Avoid warning from groff about undefined register 'F'.
60 .if \n(.g .if rF .nr rF 1
61 .if (\n(rF:(\n(.g==0)) \{
64 . tm Index:\\$1\t\\n%\t"\\$2"
74 .\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
75 .\" Fear. Run. Save yourself. No user-serviceable parts.
76 . \" fudge factors for nroff and troff
85 . ds #H ((1u-(\\\\n(.fu%2u))*.13m)
91 . \" simple accents for nroff and troff
101 . ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
102 . ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
103 . ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
104 . ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
105 . ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
106 . ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
108 . \" troff and (daisy-wheel) nroff accents
109 .ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
110 .ds 8 \h'\*(#H'\(*b\h'-\*(#H'
111 .ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
112 .ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
113 .ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
114 .ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
115 .ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
116 .ds ae a\h'-(\w'a'u*4/10)'e
117 .ds Ae A\h'-(\w'A'u*4/10)'E
118 . \" corrections for vroff
119 .if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
120 .if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
121 . \" for low resolution devices (crt and lpr)
122 .if \n(.H>23 .if \n(.V>19 \
135 .\" ========================================================================
137 .IX Title "CMS_get0_SignerInfos 3"
138 .TH CMS_get0_SignerInfos 3 "2009-07-19" "1.0.1n" "OpenSSL"
139 .\" For nroff, turn off justification. Always turn off hyphenation; it makes
140 .\" way too many mistakes in technical documents.
145 \& CMS_get0_SignerInfos, CMS_SignerInfo_get0_signer_id, CMS_SignerInfo_cert_cmp, CMS_set1_signer_certs \- CMS signedData signer functions.
150 .IX Header "SYNOPSIS"
152 \& #include <openssl/cms.h>
154 \& STACK_OF(CMS_SignerInfo) *CMS_get0_SignerInfos(CMS_ContentInfo *cms);
156 \& int CMS_SignerInfo_get0_signer_id(CMS_SignerInfo *si, ASN1_OCTET_STRING **keyid, X509_NAME **issuer, ASN1_INTEGER **sno);
157 \& int CMS_SignerInfo_cert_cmp(CMS_SignerInfo *si, X509 *cert);
158 \& void CMS_SignerInfo_set1_signer_cert(CMS_SignerInfo *si, X509 *signer);
161 .IX Header "DESCRIPTION"
162 The function \fICMS_get0_SignerInfos()\fR returns all the CMS_SignerInfo structures
163 associated with a \s-1CMS\s0 signedData structure.
165 \&\fICMS_SignerInfo_get0_signer_id()\fR retrieves the certificate signer identifier
166 associated with a specific CMS_SignerInfo structure \fBsi\fR. Either the
167 keyidentifier will be set in \fBkeyid\fR or \fBboth\fR issuer name and serial number
168 in \fBissuer\fR and \fBsno\fR.
170 \&\fICMS_SignerInfo_cert_cmp()\fR compares the certificate \fBcert\fR against the signer
171 identifier \fBsi\fR. It returns zero if the comparison is successful and non zero
174 \&\fICMS_SignerInfo_set1_signer_cert()\fR sets the signers certificate of \fBsi\fR to
178 The main purpose of these functions is to enable an application to lookup
179 signers certificates using any appropriate technique when the simpler method
180 of \fICMS_verify()\fR is not appropriate.
182 In typical usage and application will retrieve all CMS_SignerInfo structures
183 using \fICMS_get0_SignerInfo()\fR and retrieve the identifier information using
184 \&\s-1CMS.\s0 It will then obtain the signer certificate by some unspecified means
185 (or return and error if it cannot be found) and set it using
186 \&\fICMS_SignerInfo_set1_signer_cert()\fR.
188 Once all signer certificates have been set \fICMS_verify()\fR can be used.
190 Although \fICMS_get0_SignerInfos()\fR can return \s-1NULL\s0 is an error occur \fBor\fR if
191 there are no signers this is not a problem in practice because the only
192 error which can occur is if the \fBcms\fR structure is not of type signedData
193 due to application error.
195 .IX Header "RETURN VALUES"
196 \&\fICMS_get0_SignerInfos()\fR returns all CMS_SignerInfo structures, or \s-1NULL\s0 there
197 are no signers or an error occurs.
199 \&\fICMS_SignerInfo_get0_signer_id()\fR returns 1 for success and 0 for failure.
201 \&\fICMS_SignerInfo_cert_cmp()\fR returns 0 for a successful comparison and non
204 \&\fICMS_SignerInfo_set1_signer_cert()\fR does not return a value.
206 Any error can be obtained from \fIERR_get_error\fR\|(3)
208 .IX Header "SEE ALSO"
209 \&\fIERR_get_error\fR\|(3), \fICMS_verify\fR\|(3)
212 These functions were first was added to OpenSSL 0.9.8