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.. .nr rF 0 . if \nF \{\ . de IX . tm Index:\\$1\t\\n%\t"\\$2" .. . if !\nF==2 \{\ . nr % 0 . nr F 2 . \} . \} .\} .rr rF Fear. Run. Save yourself. No user-serviceable parts.
. \" fudge factors for nroff and troff . ds #H 0 . ds #V .8m . ds #F .3m . ds #[ \f1 . ds #] .\} . ds #H ((1u-(\\\\n(.fu%2u))*.13m) . ds #V .6m . ds #F 0 . ds #[ \& . ds #] \& .\} . \" simple accents for nroff and troff . ds ' \& . ds ` \& . ds ^ \& . ds , \& . ds ~ ~ . ds / .\} . ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u" . ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u' . ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u' . ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u' . ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u' . ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u' .\} . \" troff and (daisy-wheel) nroff accents . \" corrections for vroff . \" for low resolution devices (crt and lpr) \{\ . ds : e . ds 8 ss . ds o a . ds d- d\h'-1'\(ga . ds D- D\h'-1'\(hy . ds th \o'bp' . ds Th \o'LP' . ds ae ae . ds Ae AE .\} ========================================================================
Title "PKCS7_SIGN_ADD_SIGNER 3ossl"
way too many mistakes in technical documents.
The \s-1PKCS7\s0 structure should be obtained from an initial call to PKCS7_sign() with the flag \s-1PKCS7_PARTIAL\s0 set or in the case or re-signing a valid PKCS#7 signed data structure.
If the md parameter is \s-1NULL\s0 then the default digest for the public key algorithm will be used.
Unless the \s-1PKCS7_REUSE_DIGEST\s0 flag is set the returned \s-1PKCS7\s0 structure is not complete and must be finalized either by streaming (if applicable) or a call to PKCS7_final().
Any of the following flags (ored together) can be passed in the flags parameter.
If \s-1PKCS7_REUSE_DIGEST\s0 is set then an attempt is made to copy the content digest value from the \s-1PKCS7\s0 structure: to add a signer to an existing structure. An error occurs if a matching digest value cannot be found to copy. The returned \s-1PKCS7\s0 structure will be valid and finalized when this flag is set.
If \s-1PKCS7_PARTIAL\s0 is set in addition to \s-1PKCS7_REUSE_DIGEST\s0 then the \fB\s-1PKCS7_SIGNER_INO\s0 structure will not be finalized so additional attributes can be added. In this case an explicit call to PKCS7_SIGNER_INFO_sign() is needed to finalize it.
If \s-1PKCS7_NOCERTS\s0 is set the signer's certificate will not be included in the \fB\s-1PKCS7\s0 structure, the signer's certificate must still be supplied in the \fIsigncert parameter though. This can reduce the size of the signature if the signers certificate can be obtained by other means: for example a previously signed message.
The signedData structure includes several PKCS#7 authenticatedAttributes including the signing time, the PKCS#7 content type and the supported list of ciphers in an SMIMECapabilities attribute. If \s-1PKCS7_NOATTR\s0 is set then no authenticatedAttributes will be used. If \s-1PKCS7_NOSMIMECAP\s0 is set then just the SMIMECapabilities are omitted.
If present the SMIMECapabilities attribute indicates support for the following algorithms: triple \s-1DES, 128\s0 bit \s-1RC2, 64\s0 bit \s-1RC2, DES\s0 and 40 bit \s-1RC2.\s0 If any of these algorithms is disabled then it will not be included.
\fBPKCS7_sign_add_signers() returns an internal pointer to the \s-1PKCS7_SIGNER_INFO\s0 structure just added, which can be used to set additional attributes before it is finalized.
\fBPKCS7_add_certificate() adds to the \s-1PKCS7\s0 structure p7 the certificate \fIcert, which may be an end-entity (signer) certificate or a \s-1CA\s0 certificate useful for chain building. This is done internally by PKCS7_sign_ex\|(3) and similar signing functions. It may have to be used before calling PKCS7_verify\|(3) in order to provide any missing certificate(s) needed for verification.
\fBPKCS7_add_crl() adds the \s-1CRL\s0 crl to the \s-1PKCS7\s0 structure p7. This may be called to provide certificate status information to be included when signing or to use when verifying the \s-1PKCS7\s0 structure.
\fBPKCS7_add_certificate() and PKCS7_add_crl() return 1 on success, 0 on error.
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>.