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[dragonfly.git] / secure / lib / libcrypto / man / SMIME_write_PKCS7.3
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34'''
35'''
36''' Set up \*(-- to give an unbreakable dash;
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38''' Bell System Logo is used as a dummy character.
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42.ds -- \(*W-
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50''' such as .IP and .SH, which do another additional levels of
51''' double-quote interpretation
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64.ds -- \(em\|
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80.\" If the F register is turned on, we'll generate
81.\" index entries out stderr for the following things:
82.\" TH Title
83.\" SH Header
84.\" Sh Subsection
85.\" Ip Item
86.\" X<> Xref (embedded
87.\" Of course, you have to process the output yourself
88.\" in some meaninful fashion.
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96.TH SMIME_write_PKCS7 3 "0.9.7d" "2/Sep/2004" "OpenSSL"
97.UC
98.if n .hy 0
984263bc 99.if n .na
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107\\&\\$2 \\$3 \\$4 \\$5 \\$6 \\$7
108'.ft R
109..
110.\" @(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2
111. \" AM - accent mark definitions
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120.\}
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139.\}
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172\{\
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188.\}
189.rm #[ #] #H #V #F C
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190.SH "NAME"
191SMIME_write_PKCS7 \- convert PKCS#7 structure to S/MIME format.
192.SH "SYNOPSIS"
74dab6c2 193int \fISMIME_write_PKCS7\fR\|(BIO *out, PKCS7 *p7, BIO *data, int flags);
984263bc 194.SH "DESCRIPTION"
74dab6c2 195\fISMIME_write_PKCS7()\fR adds the appropriate MIME headers to a PKCS#7
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196structure to produce an S/MIME message.
197.PP
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198\fBout\fR is the BIO to write the data to. \fBp7\fR is the appropriate
199\fBPKCS7\fR structure. If cleartext signing (\fBmultipart/signed\fR) is
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200being used then the signed data must be supplied in the \fBdata\fR
201argument. \fBflags\fR is an optional set of flags.
202.SH "NOTES"
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203The following flags can be passed in the \fBflags\fR parameter.
204.PP
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205If \fBPKCS7_DETACHED\fR is set then cleartext signing will be used,
206this option only makes sense for signedData where \fBPKCS7_DETACHED\fR
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207is also set when \fIPKCS7_sign()\fR is also called.
208.PP
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209If the \fBPKCS7_TEXT\fR flag is set MIME headers for type \fBtext/plain\fR
210are added to the content, this only makes sense if \fBPKCS7_DETACHED\fR
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211is also set.
212.PP
213If cleartext signing is being used then the data must be read twice:
214once to compute the signature in \fIPKCS7_sign()\fR and once to output the
215S/MIME message.
216.SH "BUGS"
74dab6c2 217\fISMIME_write_PKCS7()\fR always base64 encodes PKCS#7 structures, there
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218should be an option to disable this.
219.PP
220There should really be a way to produce cleartext signing using only
221a single pass of the data.
222.SH "RETURN VALUES"
74dab6c2 223\fISMIME_write_PKCS7()\fR returns 1 for success or 0 for failure.
984263bc 224.SH "SEE ALSO"
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225ERR_get_error(3), PKCS7_sign(3),
226PKCS7_verify(3), PKCS7_encrypt(3)
227PKCS7_decrypt(3)
228.SH "HISTORY"
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229\fISMIME_write_PKCS7()\fR was added to OpenSSL 0.9.5
230
231.rn }` ''
232.IX Title "SMIME_write_PKCS7 3"
233.IX Name "SMIME_write_PKCS7 - convert PKCS#7 structure to S/MIME format."
234
235.IX Header "NAME"
236
237.IX Header "SYNOPSIS"
238
239.IX Header "DESCRIPTION"
240
241.IX Header "NOTES"
242
243.IX Header "BUGS"
244
245.IX Header "RETURN VALUES"
246
247.IX Header "SEE ALSO"
248
984263bc 249.IX Header "HISTORY"
74dab6c2 250